Weather in Portoroz on 31 July 2026
Preliminary outlook for 31 July 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +30°C and nighttime around +21°C, average precipitation 0.1 mm, wind around 2 m/s, humidity around 62%.
This is a climate-based estimate, not a precise long-range forecast. It is replaced by hourly data when the date enters the forecast window.
+22°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +16°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 60%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +28°C | Sun hours | 15 h |
| UV index | 6 | Cloud cover (avg.) | 10% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +22°C | Dew point (avg.) | +13°C |
| Heat index (avg.) | +22°C | Wind chill (avg.) | +22°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 183° ← (WNW) |
Sunrise
05:48
Duration
14 h 47 min
Sunset
20:35
Moonrise
13:24
Moonset
23:22
Moon phase
Waxing Crescent
Illumination
36%
+27°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +21°C
Sea temperature: +27°C
Precipitation: 0 mm
Wind: 2 — 2 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +32°C | Sun hours | 15 h |
| UV index | 7 | Cloud cover (avg.) | 4% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +27°C |
| Feels like (avg.) | +27°C | Dew point (avg.) | +15°C |
| Heat index (avg.) | +28°C | Wind chill (avg.) | +26°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 191° ← (WNW) |
Sunrise
05:49
Duration
14 h 45 min
Sunset
20:34
Moonrise
01:00
Moonset
17:52
Moon phase
Waning Crescent
Illumination
26%
+25°C
Weather archive — for 2023 year
Partly Cloudy
Weather archive — for 2023 year
Nighttime: +21°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 72%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +30°C | Sun hours | 13 h |
| UV index | 6 | Cloud cover (avg.) | 21% |
| Pressure (avg.) | 759 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +26°C | Dew point (avg.) | +19°C |
| Heat index (avg.) | +26°C | Wind chill (avg.) | +25°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 215° ↖ (NNW) |
Sunrise
05:48
Duration
14 h 47 min
Sunset
20:35
Moonrise
20:09
Moonset
03:14
Moon phase
Waxing Gibbous
Illumination
89%
+25°C
Weather archive — for 2022 year
Partly Cloudy
Weather archive — for 2022 year
Nighttime: +20°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 58%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +30°C | Sun hours | 14 h |
| UV index | 6 | Cloud cover (avg.) | 22% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +24°C | Dew point (avg.) | +15°C |
| Heat index (avg.) | +24°C | Wind chill (avg.) | +24°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 152° ↘ (SSE) |
Sunrise
05:48
Duration
14 h 47 min
Sunset
20:35
Moonrise
08:28
Moonset
22:22
Moon phase
Waxing Crescent
Illumination
12%
+26°C
Weather archive — for 2021 year
Patchy rain nearby
Weather archive — for 2021 year
Nighttime: +21°C
Precipitation: 0.3 mm
Wind: 2 — 3 m/s
Humidity: 57%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +30°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 27% |
| Pressure (avg.) | 757 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +28°C | Dew point (avg.) | +17°C |
| Heat index (avg.) | +28°C | Wind chill (avg.) | +26°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 140° ↓ (SSW) |
Sunrise
05:48
Duration
14 h 47 min
Sunset
20:35
Moonrise
00:01
Moonset
14:02
Moon phase
Last Quarter
Illumination
51%
+28°C
Weather archive — for 2020 year
Patchy rain nearby
Weather archive — for 2020 year
Nighttime: +24°C
Precipitation: 0.1 mm
Wind: 2 — 3 m/s
Humidity: 72%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +32°C | Sun hours | 13 h |
| UV index | 7 | Cloud cover (avg.) | 31% |
| Pressure (avg.) | 762 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +31°C | Dew point (avg.) | +22°C |
| Heat index (avg.) | +31°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 133° ← (W) |
Sunrise
05:49
Duration
14 h 45 min
Sunset
20:34
Moonrise
18:06
Moonset
02:02
Moon phase
Waxing Gibbous
Illumination
72%
Weather in Portoroz on 31 July in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+28°C
|
+16°C
|
+22°C | 15 h | 6 | 60% | 2 — 3 m/s |
| 2024 |
+32°C
|
+21°C
|
+27°C | 15 h | 7 | 52% | 2 — 2 m/s |
| 2023 |
+30°C
|
+21°C
|
+25°C | 13 h | 6 | 72% | 2 — 3 m/s |
| 2022 |
+30°C
|
+20°C
|
+25°C | 14 h | 6 | 58% | 2 — 3 m/s |
| 2021 |
+30°C
|
+21°C
|
+26°C | 14 h | 7 | 57% | 2 — 3 m/s |
| 2020 |
+32°C
|
+24°C
|
+28°C | 13 h | 7 | 72% | 2 — 3 m/s |