Opatija Weather in May with Sea Temperature
May weather in Opatija includes average daytime air +19°C, nighttime +12°C, average sea temperature +16°C. Daily water temperatures usually range from +14°C to +18°C, which is cool for long swims. The tables below also show air temperature, wind, rain and humidity; for near-term water data, open the current 30-day water temperature forecast.
Averaged values across several years
Daily air temperature for the month
Day
Night
Daily sea water temperature for the month
Water
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| May | Day | Night | Sea t° | Wind | Precip | Humidity |
|---|---|---|---|---|---|---|
| 1Thu |  +18°C |  +11°C | +14°C | 2 m/s | 2.1 mm | 79% |
| 2Fri |  +17°C |  +11°C | +14°C | 3 m/s | 4 mm | 82% |
| 3Sat |  +17°C | +10°C | +15°C | 3 m/s | 0.3 mm | 75% |
| 4Sun |  +17°C | +9°C | +15°C | 2 m/s | 0.4 mm | 76% |
| 5Mon | +17°C | +11°C | +15°C | 2 m/s | 0.6 mm | 79% |
| 6Tue | +17°C |  +10°C | +15°C | 2 m/s | 1 mm | 81% |
| 7Wed | +18°C | +11°C | +15°C | 2 m/s | 2.2 mm | 79% |
| 8Thu | +18°C | +10°C | +16°C | 3 m/s | 0.9 mm | 76% |
| 9Fri | +19°C | +11°C | +16°C | 4 m/s | 0.5 mm | 69% |
| 10Sat | +19°C | +11°C | +16°C | 2 m/s | 0.2 mm | 71% |
| 11Sun | +18°C | +11°C | +16°C | 3 m/s | 1.6 mm | 75% |
| 12Mon |  +17°C | +10°C | +16°C | 2 m/s | 1.8 mm | 80% |
| 13Tue | +18°C | +11°C | +16°C | 2 m/s | 2.1 mm | 81% |
| 14Wed | +18°C |  +12°C | +16°C | 2 m/s | 2.1 mm | 81% |
| 15Thu | +18°C |  +12°C | +16°C | 2 m/s | 1 mm | 80% |
| 16Fri | +18°C | +12°C | +16°C | 4 m/s | 1.9 mm | 80% |
| 17Sat | +18°C | +12°C | +16°C | 4 m/s | 3.6 mm | 78% |
| 18Sun | +19°C | +12°C | +16°C | 3 m/s | 0.4 mm | 77% |
| 19Mon | +19°C | +12°C | +16°C | 3 m/s | 1.3 mm | 79% |
| 20Tue | +20°C | +13°C | +16°C | 3 m/s | 0.4 mm | 73% |
| 21Wed | +20°C | +14°C | +17°C | 3 m/s | 0.9 mm | 71% |
| 22Thu | +20°C | +13°C | +17°C | 3 m/s | 1 mm | 78% |
| 23Fri | +19°C | +13°C | +17°C | 3 m/s | 1.7 mm | 81% |
| 24Sat | +21°C | +12°C | +17°C | 3 m/s | 0.7 mm | 75% |
| 25Sun | +21°C | +12°C | +17°C | 2 m/s | 0.1 mm | 72% |
| 26Mon | +22°C | +13°C | +17°C | 3 m/s | 0.1 mm | 69% |
| 27Tue | +22°C | +13°C | +17°C | 3 m/s | 0 mm | 70% |
| 28Wed | +20°C | +12°C | +17°C | 3 m/s | 0.2 mm | 72% |
| 29Thu | +20°C | +12°C | +17°C | 3 m/s | 0.2 mm | 75% |
| 30Fri | +20°C | +12°C | +17°C | 3 m/s | 0.3 mm | 72% |
| 31Sat | +20°C | +13°C | +18°C | 3 m/s | 2.7 mm | 74% |
Sea water temperature by months
Water +16°C
Day and night air temperature
Day +19°C
Night +12°C
Weather highs and lows in Opatija for may
- Warmest day: 27 may, +22°C
- Coldest night: 4 may, +9°C
- Max precipitation: 2 may, 4 mm
- Warmest sea water: 31 may, +18°C
- Coldest sea water: 1 may, +14°C
Climate in Opatija in may
- Average daytime temperature: +19°C
- Average nighttime temperature: +12°C
- Sea water temperature: —
- Precipitation (monthly average): 36.2 mm
- Days with precipitation: 8.8
- Humidity: 76%
- Wind: 3 m/s
- Data: 6 years / coverage 100%
Daily air temperature for the month
Day
Night
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| May | Day | Night | Sea t° | Wind | Precip | Humidity |
|---|---|---|---|---|---|---|
| 1Thu | +23°C | +11°C | — | 3 m/s, ENE | 0 mm | 64% |
| 2Fri | +21°C | +14°C | — | 2 m/s, SW | 0 mm | 66% |
| 3Sat | +19°C | +13°C | — | 2 m/s, SW | 0 mm | 77% |
| 4Sun |  +18°C | +13°C | — | 2-3 m/s, SSW | 0 mm | 87% |
| 5Mon | +16°C | +12°C | — | 2-4 m/s, SSE | 1.6 mm | 92% |
| 6Tue | +16°C |  +11°C | — | 3 m/s, NE | 0.2 mm | 90% |
| 7Wed | +16°C | +10°C | — | 2-3 m/s, NNE | 7.1 mm | 81% |
| 8Thu |  +13°C | +9°C | — | 2-3 m/s, NE | 2.3 mm | 84% |
| 9Fri | +17°C | +7°C | — | 3 m/s, NE | 0.1 mm | 76% |
| 10Sat | +18°C | +7°C | — | 2-4 m/s, ESE | 0 mm | 66% |
| 11Sun | +18°C | +8°C | — | 2-3 m/s, SW | 0 mm | 64% |
| 12Mon | +18°C | +9°C | — | 2-4 m/s, SSW | 0.1 mm | 71% |
| 13Tue | +18°C | +9°C | — | 4 m/s, ENE | 0 mm | 68% |
| 14Wed | +19°C | +8°C | — | 2-4 m/s, SW | 0 mm | 60% |
| 15Thu | +17°C | +10°C | — | 1-3 m/s, SW | 0 mm | 69% |
| 16Fri | +17°C | +8°C | — | 6-8 m/s, ENE | 1.8 mm | 62% |
| 17Sat | +16°C | +8°C | — | 2-3 m/s, WSW | 2.6 mm | 65% |
| 18Sun | +14°C | +9°C | — | 3-4 m/s, S | 0.9 mm | 87% |
| 19Mon | +17°C | +13°C | — | 2 m/s, SSE | 1.7 mm | 87% |
| 20Tue | +19°C | +12°C | — | 2 m/s, SSW | 0 mm | 80% |
| 21Wed | +18°C | +12°C | — | 1-2 m/s, SSW | 3 mm | 88% |
| 22Thu | +17°C | +13°C | — | 3-5 m/s, S | 2 mm | 91% |
| 23Fri | +14°C | +8°C | — | 6-9 m/s, ENE | 6.3 mm | 88% |
| 24Sat | +19°C | +6°C | — | 4-5 m/s, ENE | 0 mm | 62% |
| 25Sun | +20°C | +9°C | — | 2-4 m/s, WSW | 0 mm | 61% |
| 26Mon | +19°C | +12°C | — | 1-2 m/s, SW | 0.1 mm | 66% |
| 27Tue | +21°C |  +13°C | — | 2-3 m/s, NE | 0.2 mm | 80% |
| 28Wed | +21°C | +13°C | — | 2-3 m/s, SW | 0 mm | 70% |
| 29Thu |  +20°C | +11°C | — | 2 m/s, NNE | 0.8 mm | 75% |
| 30Fri | +20°C | +13°C | — | 2-3 m/s, WSW | 0 mm | 68% |
| 31Sat | +25°C | +14°C | — | 1-2 m/s, SSW | 0 mm | 70% |
Weather highs and lows in Opatija for may
- Warmest day: 31 may, +25°C
- Coldest night: 24 may, +6°C
- Max precipitation: 7 may, 7.1 mm
- Warmest water: —
- Coldest water: —
Climate in Opatija in may
- Year: 2025
- Average daytime temperature: +18°C
- Average nighttime temperature: +11°C
- Water temperature: —
- Precipitation (month): 30.8 mm
- Days with precipitation: 9
- Humidity: 75%
- Wind: 2 m/s
Daily air temperature for the month
Day
Night
Daily sea water temperature for the month
Water
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| May | Day | Night | Sea t° | Wind | Precip | Humidity |
|---|---|---|---|---|---|---|
| 1Wed | +18°C | +12°C | +14°C | 2 m/s, SSW | 0.2 mm | 80% |
| 2Thu | +17°C | +11°C | +14°C | 3-4 m/s, SSW | 6.3 mm | 86% |
| 3Fri | +14°C | +8°C | +15°C | 1 m/s, SW | 0.8 mm | 86% |
| 4Sat | +17°C |  +9°C | +15°C | 1 m/s, NNE | 1.8 mm | 82% |
| 5Sun | +16°C | +10°C | +15°C | 1-2 m/s, SW | 0.4 mm | 82% |
| 6Mon | +17°C | +11°C | +15°C | 2-4 m/s, SSW | 0.5 mm | 90% |
| 7Tue |  +15°C | +13°C | +15°C | 2-3 m/s, SSE | 1.1 mm | 94% |
| 8Wed | +18°C | +10°C | +16°C | 2-4 m/s, SSW | 2.2 mm | 83% |
| 9Thu | +19°C | +12°C | +16°C | 7-8 m/s, ENE | 0.1 mm | 64% |
| 10Fri | +21°C | +11°C | +16°C | 4-6 m/s, ENE | 0 mm | 64% |
| 11Sat | +22°C | +12°C | +16°C | 3 m/s, ENE | 0 mm | 67% |
| 12Sun | +19°C | +13°C | +16°C | 2-3 m/s, SW | 0 mm | 66% |
| 13Mon | +18°C | +12°C | +16°C | 2-3 m/s, ESE | 0.1 mm | 80% |
| 14Tue | +17°C | +13°C | +16°C | 1-2 m/s, NE | 7.3 mm | 84% |
| 15Wed | +16°C | +12°C | +16°C | 2 m/s, N | 1.6 mm | 87% |
| 16Thu | +18°C | +14°C | +16°C | 1-2 m/s, SW | 0.3 mm | 90% |
| 17Fri | +18°C |  +13°C | +16°C | 3-5 m/s, SSW | 1.4 mm | 82% |
| 18Sat | +20°C | +12°C | +16°C | 1-2 m/s, SW | 0 mm | 78% |
| 19Sun | +20°C | +14°C | +16°C | 1 m/s, S | 0 mm | 88% |
| 20Mon | +21°C | +14°C | +16°C | 1 m/s, WSW | 0.5 mm | 79% |
| 21Tue | +21°C | +16°C | +17°C | 2 m/s, ENE | 2.5 mm | 86% |
| 22Wed | +18°C | +13°C | +17°C | 3-4 m/s, SSW | 3 mm | 85% |
| 23Thu | +18°C | +11°C | +17°C | 1-3 m/s, SSW | 0.9 mm | 81% |
| 24Fri | +19°C | +12°C | +17°C | 1-3 m/s, SSW | 0.2 mm | 80% |
| 25Sat | +21°C | +13°C | +17°C | 1-2 m/s, WSW | 0.1 mm | 68% |
| 26Sun | +23°C | +14°C | +17°C | 2 m/s, SE | 0.3 mm | 70% |
| 27Mon | +21°C | +13°C | +17°C | 2-3 m/s, S | 0 mm | 79% |
| 28Tue | +20°C | +13°C | +17°C | 1-2 m/s, SSW | 1.2 mm | 76% |
| 29Wed | +22°C | +14°C | +17°C | 2-3 m/s, ENE | 0 mm | 77% |
| 30Thu | +19°C | +14°C | +17°C | 2 m/s, SSW | 0.5 mm | 82% |
| 31Fri |  +18°C | +14°C | +18°C | 3-5 m/s, SSE | 12.4 mm | 92% |
Weather highs and lows in Opatija for may
- Warmest day: 26 may, +23°C
- Coldest night: 3 may, +8°C
- Max precipitation: 31 may, 12.4 mm
- Warmest water: 31 may, +18°C
- Coldest water: 1 may, +14°C
Climate in Opatija in may
- Year: 2024
- Average daytime temperature: +19°C
- Average nighttime temperature: +12°C
- Water temperature: —
- Precipitation (month): 45.7 mm
- Days with precipitation: 11
- Humidity: 80%
- Wind: 2 m/s
Daily air temperature for the month
Day
Night
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| May | Day | Night | Sea t° | Wind | Precip | Humidity |
|---|---|---|---|---|---|---|
| 1Mon | +16°C | +10°C | — | 4-7 m/s, NE | 0.7 mm | 84% |
| 2Tue | +14°C | +10°C | — | 5-6 m/s, NE | 3.9 mm | 89% |
| 3Wed | +17°C | +11°C | — | 7-8 m/s, ENE | 1 mm | 74% |
| 4Thu | +19°C | +9°C | — | 3-6 m/s, ENE | 0 mm | 68% |
| 5Fri | +20°C | +9°C | — | 1-2 m/s, SW | 0 mm | 69% |
| 6Sat | +22°C | +11°C | — | 2-3 m/s, SSW | 0 mm | 71% |
| 7Sun | +22°C | +12°C | — | 2-3 m/s, SSW | 0 mm | 74% |
| 8Mon | +18°C | +12°C | — | 4-6 m/s, NE | 0 mm | 74% |
| 9Tue | +18°C | +11°C | — | 4-6 m/s, ENE | 0 mm | 75% |
| 10Wed | +16°C | +8°C | — | 3 m/s, NE | 1.1 mm | 78% |
| 11Thu | +12°C | +10°C | — | 4 m/s, NE | 4.4 mm | 89% |
| 12Fri | +16°C | +10°C | — | 2 m/s, SW | 0.8 mm | 84% |
| 13Sat | +17°C | +9°C | — | 2 m/s, S | 0.3 mm | 84% |
| 14Sun | +13°C | +11°C | — | 3-5 m/s, NE | 1.7 mm | 90% |
| 15Mon | +19°C | +10°C | — | 1-3 m/s, E | 0.7 mm | 78% |
| 16Tue | +15°C | +12°C | — | 8-11 m/s, NE | 5.7 mm | 84% |
| 17Wed | +14°C | +10°C | — | 7 m/s, ENE | 3.9 mm | 82% |
| 18Thu | +17°C | +9°C | — | 6-8 m/s, ENE | 1 mm | 71% |
| 19Fri | +18°C | +9°C | — | 5-6 m/s, NE | 0 mm | 78% |
| 20Sat | +21°C | +12°C | — | 5-6 m/s, NE | 0.1 mm | 80% |
| 21Sun | +23°C | +14°C | — | 6-7 m/s, ENE | 0 mm | 67% |
| 22Mon | +24°C | +14°C | — | 3-4 m/s, ENE | 0 mm | 68% |
| 23Tue | +23°C | +14°C | — | 2-3 m/s, SSW | 0 mm | 75% |
| 24Wed | +22°C | +13°C | — | 2 m/s, ESE | 0.4 mm | 80% |
| 25Thu | +24°C | +13°C | — | 3-5 m/s, ENE | 0 mm | 72% |
| 26Fri | +24°C | +15°C | — | 4-5 m/s, ENE | 0 mm | 70% |
| 27Sat | +23°C | +14°C | — | 5-6 m/s, ENE | 0 mm | 63% |
| 28Sun | +23°C | +12°C | — | 4 m/s, ENE | 0 mm | 70% |
| 29Mon | +24°C | +14°C | — | 4-5 m/s, ENE | 0 mm | 72% |
| 30Tue | +24°C | +15°C | — | 4-5 m/s, ENE | 0 mm | 70% |
| 31Wed | +21°C | +15°C | — | 5-6 m/s, NE | 0 mm | 68% |
Weather highs and lows in Opatija for may
- Warmest day: 22 may, +24°C
- Coldest night: 10 may, +8°C
- Max precipitation: 16 may, 5.7 mm
- Warmest water: —
- Coldest water: —
Climate in Opatija in may
- Year: 2023
- Average daytime temperature: +19°C
- Average nighttime temperature: +12°C
- Water temperature: —
- Precipitation (month): 25.7 mm
- Days with precipitation: 8
- Humidity: 76%
- Wind: 4 m/s
Daily air temperature for the month
Day
Night
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| May | Day | Night | Sea t° | Wind | Precip | Humidity |
|---|---|---|---|---|---|---|
| 1Sun | +17°C | +9°C | — | 2-3 m/s, SE | 1.9 mm | 71% |
| 2Mon | +17°C | +9°C | — | 3-4 m/s, E | 0.8 mm | 78% |
| 3Tue | +19°C | +10°C | — | 3 m/s, E | 0 mm | 70% |
| 4Wed | +17°C | +10°C | — | 1-2 m/s, SW | 0.3 mm | 75% |
| 5Thu | +17°C | +12°C | — | 1-2 m/s, SSW | 0 mm | 78% |
| 6Fri | +17°C | +12°C | — | 1-2 m/s, ENE | 3 mm | 74% |
| 7Sat | +19°C | +13°C | — | 2-3 m/s, E | 0.6 mm | 72% |
| 8Sun | +21°C | +11°C | — | 3-4 m/s, ENE | 0.8 mm | 76% |
| 9Mon | +22°C | +12°C | — | 4-5 m/s, ENE | 2.5 mm | 71% |
| 10Tue | +22°C | +13°C | — | 2-3 m/s, SSW | 0 mm | 71% |
| 11Wed | +22°C | +12°C | — | 2 m/s, SW | 0 mm | 72% |
| 12Thu | +21°C | +15°C | — | 1-2 m/s, SW | 0 mm | 74% |
| 13Fri | +21°C | +15°C | — | 1 m/s, WSW | 0 mm | 74% |
| 14Sat | +22°C | +15°C | — | 2-3 m/s, NNE | 0 mm | 80% |
| 15Sun | +24°C | +14°C | — | 2-3 m/s, SW | 0 mm | 75% |
| 16Mon | +23°C | +17°C | — | 1-2 m/s, SW | 0 mm | 77% |
| 17Tue | +22°C | +16°C | — | 1 m/s, WSW | 0 mm | 76% |
| 18Wed | +23°C | +15°C | — | 4-5 m/s, ENE | 0 mm | 71% |
| 19Thu | +24°C | +11°C | — | 2-4 m/s, SW | 0 mm | 62% |
| 20Fri | +22°C | +14°C | — | 1-2 m/s, SW | 0 mm | 52% |
| 21Sat | +23°C | +16°C | — | 1-2 m/s, SW | 0 mm | 58% |
| 22Sun | +25°C | +14°C | — | 2-3 m/s, SW | 0 mm | 74% |
| 23Mon | +22°C | +17°C | — | 2 m/s, SW | 0 mm | 82% |
| 24Tue | +23°C | +16°C | — | 2-4 m/s, SW | 0 mm | 80% |
| 25Wed | +23°C | +17°C | — | 2 m/s, SW | 0 mm | 74% |
| 26Thu | +26°C | +16°C | — | 2-3 m/s, SW | 0 mm | 71% |
| 27Fri | +26°C | +16°C | — | 1-2 m/s, SW | 0 mm | 66% |
| 28Sat | +18°C | +12°C | — | 5-8 m/s, NE | 0 mm | 77% |
| 29Sun | +13°C | +10°C | — | 6-8 m/s, NE | 0.5 mm | 79% |
| 30Mon | +16°C | +10°C | — | 2-4 m/s, NE | 1 mm | 89% |
| 31Tue | +20°C | +14°C | — | 3 m/s, SW | 3.8 mm | 84% |
Weather highs and lows in Opatija for may
- Warmest day: 26 may, +26°C
- Coldest night: 1 may, +9°C
- Max precipitation: 31 may, 3.8 mm
- Warmest water: —
- Coldest water: —
Climate in Opatija in may
- Year: 2022
- Average daytime temperature: +21°C
- Average nighttime temperature: +13°C
- Water temperature: —
- Precipitation (month): 15.2 mm
- Days with precipitation: 5
- Humidity: 74%
- Wind: 2 m/s
Daily air temperature for the month
Day
Night
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| May | Day | Night | Sea t° | Wind | Precip | Humidity |
|---|---|---|---|---|---|---|
| 1Sat | +19°C | +12°C | — | 1 m/s, SSW | 0.1 mm | 82% |
| 2Sun | +16°C | +11°C | — | 5-6 m/s, SW | 9 mm | 89% |
| 3Mon | +13°C | +7°C | — | 3-5 m/s, NNE | 0 mm | 77% |
| 4Tue | +15°C | +6°C | — | 2-3 m/s, SW | 0 mm | 78% |
| 5Wed | +14°C | +11°C | — | 4-7 m/s, SSW | 1.5 mm | 89% |
| 6Thu | +15°C | +8°C | — | 2-4 m/s, SE | 2.2 mm | 88% |
| 7Fri | +15°C | +10°C | — | 3-4 m/s, SSW | 4.5 mm | 92% |
| 8Sat | +16°C | +7°C | — | 3-5 m/s, ENE | 0 mm | 71% |
| 9Sun | +19°C | +8°C | — | 2-3 m/s, SW | 0 mm | 63% |
| 10Mon | +19°C | +13°C | — | 1-2 m/s, SW | 0 mm | 70% |
| 11Tue | +20°C | +14°C | — | 1-2 m/s, SSW | 0.2 mm | 68% |
| 12Wed | +14°C | +10°C | — | 2-4 m/s, SSW | 3.2 mm | 95% |
| 13Thu | +14°C | +10°C | — | 2-3 m/s, S | 12.1 mm | 94% |
| 14Fri | +14°C | +10°C | — | 3-4 m/s, S | 3.6 mm | 89% |
| 15Sat | +16°C | +10°C | — | 2 m/s, SW | 0.9 mm | 85% |
| 16Sun | +14°C | +10°C | — | 2-3 m/s, SSE | 3.6 mm | 93% |
| 17Mon | +16°C | +11°C | — | 4-5 m/s, SE | 13.8 mm | 92% |
| 18Tue | +16°C | +10°C | — | 2 m/s, SSW | 0 mm | 82% |
| 19Wed | +14°C | +10°C | — | 3-6 m/s, ENE | 4.3 mm | 77% |
| 20Thu | +17°C | +8°C | — | 2 m/s, E | 0 mm | 68% |
| 21Fri | +17°C | +11°C | — | 2 m/s, SW | 0 mm | 66% |
| 22Sat | +17°C | +12°C | — | 5-7 m/s, SSW | 1.1 mm | 86% |
| 23Sun | +17°C | +11°C | — | 3-5 m/s, SSE | 2.7 mm | 89% |
| 24Mon | +21°C | +11°C | — | 3 m/s, S | 0.8 mm | 76% |
| 25Tue | +17°C | +9°C | — | 2-3 m/s, S | 0.7 mm | 88% |
| 26Wed | +19°C | +8°C | — | 3-4 m/s, SSE | 0 mm | 68% |
| 27Thu | +20°C | +12°C | — | 2 m/s, E | 0 mm | 69% |
| 28Fri | +19°C | +10°C | — | 3-5 m/s, SSE | 0.1 mm | 70% |
| 29Sat | +20°C | +11°C | — | 3-4 m/s, ENE | 0.1 mm | 72% |
| 30Sun | +20°C | +11°C | — | 3-4 m/s, ENE | 0.1 mm | 63% |
| 31Mon | +18°C | +9°C | — | 4 m/s, ENE | 0 mm | 64% |
Weather highs and lows in Opatija for may
- Warmest day: 24 may, +21°C
- Coldest night: 4 may, +6°C
- Max precipitation: 17 may, 13.8 mm
- Warmest water: —
- Coldest water: —
Climate in Opatija in may
- Year: 2021
- Average daytime temperature: +17°C
- Average nighttime temperature: +10°C
- Water temperature: —
- Precipitation (month): 64.6 mm
- Days with precipitation: 12
- Humidity: 79%
- Wind: 3 m/s
Daily air temperature for the month
Day
Night
Tap a date to open detailed weather for that day
| May | Day | Night | Sea t° | Wind | Precip | Humidity |
|---|---|---|---|---|---|---|
| 1Fri | +14°C | +11°C | — | 2 m/s, ESE | 9.8 mm | 91% |
| 2Sat | +17°C | +12°C | — | 2-3 m/s, ESE | 3.9 mm | 84% |
| 3Sun | +18°C | +10°C | — | 3-6 m/s, NE | 0 mm | 66% |
| 4Mon | +17°C | +9°C | — | 1-2 m/s, WSW | 0 mm | 63% |
| 5Tue | +17°C | +12°C | — | 1-2 m/s, SW | 0.1 mm | 61% |
| 6Wed | +16°C | +8°C | — | 4-7 m/s, ENE | 0.1 mm | 70% |
| 7Thu | +19°C | +7°C | — | 2-3 m/s, WSW | 0 mm | 62% |
| 8Fri | +19°C | +12°C | — | 1-2 m/s, SW | 0 mm | 65% |
| 9Sat | +18°C | +13°C | — | 1-2 m/s, SSW | 0 mm | 67% |
| 10Sun | +18°C | +12°C | — | 2-3 m/s, SSW | 0 mm | 76% |
| 11Mon | +16°C | +12°C | — | 4-5 m/s, S | 4.8 mm | 91% |
| 12Tue | +13°C | +4°C | — | 4-7 m/s, NE | 6.9 mm | 91% |
| 13Wed | +19°C | +8°C | — | 1-2 m/s, SSW | 0.2 mm | 84% |
| 14Thu | +21°C | +14°C | — | 3 m/s, WSW | 0 mm | 85% |
| 15Fri | +18°C | +14°C | — | 4-5 m/s, SW | 2.5 mm | 88% |
| 16Sat | +19°C | +10°C | — | 3-5 m/s, ENE | 0.2 mm | 76% |
| 17Sun | +21°C | +12°C | — | 4 m/s, NE | 0 mm | 70% |
| 18Mon | +22°C | +15°C | — | 4-5 m/s, NE | 0.2 mm | 74% |
| 19Tue | +21°C | +15°C | — | 6-7 m/s, ENE | 1.8 mm | 82% |
| 20Wed | +20°C | +15°C | — | 7-8 m/s, NE | 2 mm | 78% |
| 21Thu | +20°C | +13°C | — | 5-6 m/s, NE | 0 mm | 59% |
| 22Fri | +20°C | +11°C | — | 2-3 m/s, WSW | 0 mm | 65% |
| 23Sat | +21°C | +15°C | — | 1-2 m/s, SW | 0 mm | 72% |
| 24Sun | +20°C | +13°C | — | 3-7 m/s, ENE | 2.7 mm | 70% |
| 25Mon | +20°C | +11°C | — | 2-3 m/s, WSW | 0 mm | 66% |
| 26Tue | +20°C | +10°C | — | 3-5 m/s, NE | 0 mm | 68% |
| 27Wed | +21°C | +10°C | — | 3-4 m/s, NNE | 0 mm | 60% |
| 28Thu | +20°C | +12°C | — | 2 m/s, SW | 0 mm | 68% |
| 29Fri | +18°C | +10°C | — | 3-4 m/s, ENE | 0 mm | 72% |
| 30Sat | +19°C | +11°C | — | 3-4 m/s, ENE | 0 mm | 62% |
| 31Sun | +18°C | +11°C | — | 2-3 m/s, WNW | 0 mm | 66% |
Weather highs and lows in Opatija for may
- Warmest day: 18 may, +22°C
- Coldest night: 12 may, +4°C
- Max precipitation: 1 may, 9.8 mm
- Warmest water: —
- Coldest water: —
Climate in Opatija in may
- Year: 2020
- Average daytime temperature: +19°C
- Average nighttime temperature: +11°C
- Water temperature: —
- Precipitation (month): 35.2 mm
- Days with precipitation: 8
- Humidity: 73%
- Wind: 3 m/s
Weather in Opatija in may by year
| Year | Day | Night | Precipitation | Days with precipitation | Water |
|---|---|---|---|---|---|
| 2025 | +18°C | +11°C | 30.8 mm | 9 | — |
| 2024 | +19°C | +12°C | 45.7 mm | 11 | — |
| 2023 | +19°C | +12°C | 25.7 mm | 8 | — |
| 2022 | +21°C | +13°C | 15.2 mm | 5 | — |
| 2021 | +17°C | +10°C | 64.6 mm | 12 | — |
| 2020 | +19°C | +11°C | 35.2 mm | 8 | — |
Comparison may in Opatija with other months
| Month | Day | Night | Days with precipitation | Sunny days |
|---|---|---|---|---|
| January | +7°C | +1°C | 9 | 11 |
| February | +9°C | +3°C | 8 | 9 |
| March | +11°C | +4°C | 7 | 13 |
| April | +14°C | +7°C | 7 | 11 |
| May | +19°C | +12°C | 9 | 10 |
| June | +25°C | +17°C | 3 | 16 |
| July | +28°C | +19°C | 2 | 18 |
| August | +27°C | +19°C | 4 | 19 |
| September | +22°C | +15°C | 8 | 16 |
| October | +17°C | +11°C | 9 | 14 |
| November | +12°C | +6°C | 7 | 12 |
| December | +9°C | +3°C | 9 | 9 |