Portorož: väder och havstemperatur i September
Historiska data och typiskt väder för den valda månaden.
Lufttemperatur per dag
Dag
Natt
Havstemperatur per dag
Havstemperatur
Tabellen visar genomsnittliga värden efter år.
| September | Dag | Natt | Hav | Vind | Nederbörd | Luftfuktighet |
|---|---|---|---|---|---|---|
| 1Mån |  +26°C |  +18°C | +25°C | 3 m/s | 0.6 mm | 67% |
| 2Tis | +27°C | +18°C | +25°C | 2 m/s | 0.2 mm | 65% |
| 3Ons | +27°C | +18°C | +25°C | 2 m/s | 0 mm | 68% |
| 4Tor | +28°C | +17°C | +25°C | 2 m/s | 0 mm | 66% |
| 5Fre | +28°C | +18°C | +24°C | 3 m/s | 0 mm | 64% |
| 6Lör | +27°C | +18°C | +24°C | 2 m/s | 0.1 mm | 66% |
| 7Sön | +28°C | +18°C | +25°C | 3 m/s | 0.1 mm | 63% |
| 8Mån | +27°C | +18°C | +24°C | 3 m/s | 0.4 mm | 64% |
| 9Tis | +27°C | +17°C | +24°C | 2 m/s | 2 mm | 67% |
| 10Ons | +26°C | +17°C | +24°C | 2 m/s | 1.4 mm | 69% |
| 11Tor | +26°C | +17°C | +24°C | 2 m/s | 0.7 mm | 68% |
| 12Fre | +26°C | +16°C | +24°C | 3 m/s | 1.5 mm | 68% |
| 13Lör | +26°C | +16°C | +23°C | 2 m/s | 1.1 mm | 65% |
| 14Sön | +25°C | +17°C | +23°C | 2 m/s | 0.7 mm | 69% |
| 15Mån | +25°C | +17°C | +23°C | 2 m/s | 1 mm | 70% |
| 16Tis |  +25°C | +16°C | +23°C | 2 m/s | 1.3 mm | 73% |
| 17Ons | +22°C | +16°C | +23°C | 4 m/s | 2.2 mm | 77% |
| 18Tor | +24°C | +15°C | +22°C | 3 m/s | 0 mm | 73% |
| 19Fre | +24°C | +16°C | +23°C | 3 m/s | 1 mm | 72% |
| 20Lör | +24°C | +15°C | +22°C | 3 m/s | 0.2 mm | 70% |
| 21Sön | +24°C | +15°C | +22°C | 3 m/s | 0.5 mm | 69% |
| 22Mån | +23°C | +15°C | +22°C | 3 m/s | 3.8 mm | 71% |
| 23Tis | +22°C | +14°C | +22°C | 2 m/s | 1.2 mm | 76% |
| 24Ons |  +21°C | +14°C | +22°C | 3 m/s | 1.1 mm | 81% |
| 25Tor | +21°C |  +13°C | +21°C | 3 m/s | 3.9 mm | 83% |
| 26Fre | +21°C | +14°C | +21°C | 3 m/s | 1.2 mm | 81% |
| 27Lör | +22°C | +14°C | +21°C | 3 m/s | 0.3 mm | 74% |
| 28Sön | +21°C | +13°C | +21°C | 3 m/s | 1.5 mm | 78% |
| 29Mån | +22°C | +13°C | +21°C | 2 m/s | 0.7 mm | 71% |
| 30Tis | +20°C | +13°C | +21°C | 3 m/s | 1.1 mm | 72% |
Havstemperatur per dag
Havstemperatur +23°C
Lufttemperatur per månad
Dag +24°C
Natt +16°C
Väderextremer i Portorož i September
- Varmaste dagen: 5 september, +28°C
- Kallaste natten: 28 september, +13°C
- Mest nederbörd: 25 september, 3.9 mm
- Varmaste havsvattnet: 1 september, +25°C
- Kallaste havsvattnet: 25 september, +21°C
Klimat i Portorož i i september
- Genomsnittlig dagtemperatur: +24°C
- Genomsnittlig nattemperatur: +16°C
- Havsvattentemperatur: —
- Genomsnittlig månadsnederbörd: 29.7 mm
- Dagar med nederbörd: 6.7
- Luftfuktighet: 71%
- Vind: 3 m/s
- Data för 6 år; täckning 100%
Lufttemperatur per dag
Dag
Natt
Tabellen visar genomsnittliga värden efter år.
| September | Dag | Natt | Hav | Vind | Nederbörd | Luftfuktighet |
|---|---|---|---|---|---|---|
| 1Mån | +26°C | +16°C | — | 2-3 m/s, VSV | 0 mm | 70% |
| 2Tis |  +25°C |  +17°C | — | 2-3 m/s, SSO | 0.9 mm | 84% |
| 3Ons | +27°C | +17°C | — | 1-2 m/s, NO | 0 mm | 78% |
| 4Tor | +28°C | +17°C | — | 1-2 m/s, VNV | 0 mm | 71% |
| 5Fre | +27°C | +18°C | — | 2 m/s, V | 0 mm | 71% |
| 6Lör | +26°C | +17°C | — | 2-3 m/s, NNO | 0 mm | 77% |
| 7Sön |  +26°C | +16°C | — | 2 m/s, NNV | 0 mm | 70% |
| 8Mån | +26°C |  +16°C | — | 2 m/s, VNV | 0 mm | 69% |
| 9Tis | +25°C | +17°C | — | 1 m/s, OSO | 0 mm | 69% |
| 10Ons | +20°C | +17°C | — | 2 m/s, ONO | 7 mm | 94% |
| 11Tor | +22°C |  +16°C | — | 2 m/s, S | 3.9 mm | 90% |
| 12Fre | +25°C | +15°C | — | 2 m/s, SSV | 0.7 mm | 80% |
| 13Lör | +25°C | +16°C | — | 1-2 m/s, SV | 0 mm | 71% |
| 14Sön | +23°C |  +15°C | — | 2 m/s, SV | 2.1 mm | 88% |
| 15Mån | +25°C | +15°C | — | 1-2 m/s, VNV | 0 mm | 79% |
| 16Tis | +24°C | +14°C | — | 2 m/s, SSV | 1.3 mm | 83% |
| 17Ons | +24°C | +13°C | — | 3-4 m/s, NO | 0.1 mm | 74% |
| 18Tor | +26°C | +14°C | — | 1-2 m/s, NNV | 0 mm | 67% |
| 19Fre | +28°C | +16°C | — | 1-2 m/s, VNV | 0 mm | 68% |
| 20Lör | +27°C | +18°C | — | 1-2 m/s, V | 0 mm | 70% |
| 21Sön | +27°C | +17°C | — | 1-2 m/s, VSV | 0 mm | 72% |
| 22Mån | +26°C | +17°C | — | 3-4 m/s, SV | 1 mm | 74% |
| 23Tis | +21°C |  +17°C | — | 2 m/s, ONO | 1.7 mm | 90% |
| 24Ons | +21°C | +13°C | — | 2-3 m/s, OSO | 3 mm | 88% |
| 25Tor | +21°C | +11°C | — | 2-3 m/s, SV | 0.6 mm | 84% |
| 26Fre | +19°C | +11°C | — | 2 m/s, NV | 0.2 mm | 85% |
| 27Lör | +22°C | +12°C | — | 2 m/s, NO | 0 mm | 75% |
| 28Sön | +22°C | +11°C | — | 2-3 m/s, NO | 0 mm | 74% |
| 29Mån | +21°C | +12°C | — | 2 m/s, NNO | 0 mm | 66% |
| 30Tis | +16°C |  +10°C | — | 3-4 m/s, ONO | 0 mm | 75% |
Väderextremer i Portorož i September
- Varmaste dagen: 4 september, +28°C
- Kallaste natten: 30 september, +10°C
- Mest nederbörd: 10 september, 7 mm
- Varmaste vattnet: —
- Kallaste vattnet: —
Klimat i Portorož i i september
- År: 2025
- Genomsnittlig dagtemperatur: +24°C
- Genomsnittlig nattemperatur: +15°C
- Vattentemperatur: —
- Nederbörd under månaden: 22.5 mm
- Dagar med nederbörd: 7
- Luftfuktighet: 77%
- Vind: 2 m/s
Lufttemperatur per dag
Dag
Natt
Havstemperatur per dag
Havstemperatur
Tabellen visar genomsnittliga värden efter år.
| September | Dag | Natt | Hav | Vind | Nederbörd | Luftfuktighet |
|---|---|---|---|---|---|---|
| 1Sön | +34°C | +23°C | +25°C | 2-3 m/s, VNV | 0 mm | 42% |
| 2Mån | +33°C | +23°C | +25°C | 2-3 m/s, VNV | 0 mm | 45% |
| 3Tis | +30°C | +21°C | +25°C | 2-3 m/s, V | 0 mm | 67% |
| 4Ons | +30°C | +20°C | +25°C | 2 m/s, VNV | 0 mm | 63% |
| 5Tor | +30°C | +19°C | +24°C | 2-3 m/s, VSV | 0 mm | 67% |
| 6Fre | +25°C | +18°C | +24°C | 1-2 m/s, SSV | 0.3 mm | 84% |
| 7Lör | +27°C | +18°C | +25°C | 2 m/s, V | 0 mm | 76% |
| 8Sön |  +28°C | +18°C | +24°C | 2-3 m/s, V | 0.3 mm | 79% |
| 9Mån |  +23°C | +16°C | +24°C | 3-4 m/s, VSV | 6 mm | 90% |
| 10Tis | +26°C | +15°C | +24°C | 2 m/s, NV | 0 mm | 69% |
| 11Ons | +25°C | +16°C | +24°C | 2 m/s, VNV | 0 mm | 66% |
| 12Tor |  +19°C | +11°C | +24°C | 4-7 m/s, S | 8.2 mm | 88% |
| 13Fre | +16°C | +10°C | +23°C | 5-8 m/s, NO | 6.4 mm | 78% |
| 14Lör | +17°C |  +10°C | +23°C | 2 m/s, NV | 1 mm | 74% |
| 15Sön | +19°C | +12°C | +23°C | 1-2 m/s, S | 0.1 mm | 64% |
| 16Mån | +21°C | +10°C | +23°C | 2 m/s, NV | 0.1 mm | 62% |
| 17Tis | +17°C | +12°C | +23°C | 6-8 m/s, ONO | 0 mm | 70% |
| 18Ons | +23°C | +14°C | +22°C | 7-8 m/s, ONO | 0 mm | 62% |
| 19Tor | +23°C | +17°C | +23°C | 6-7 m/s, ONO | 0 mm | 58% |
| 20Fre | +22°C | +15°C | +22°C | 5-6 m/s, ONO | 0 mm | 61% |
| 21Lör | +25°C | +13°C | +22°C | 3 m/s, NO | 0 mm | 66% |
| 22Sön | +24°C | +12°C | +22°C | 2 m/s, V | 0 mm | 62% |
| 23Mån | +23°C | +14°C | +22°C | 1-2 m/s, V | 0 mm | 70% |
| 24Tis | +20°C | +14°C | +22°C | 3-4 m/s, SSV | 3.1 mm | 90% |
| 25Ons | +20°C | +13°C | +21°C | 3-4 m/s, S | 0.8 mm | 90% |
| 26Tor | +20°C | +15°C | +21°C | 4 m/s, SV | 1 mm | 88% |
| 27Fre | +22°C | +16°C | +21°C | 6 m/s, S | 0.1 mm | 81% |
| 28Lör | +21°C | +12°C | +21°C | 4-6 m/s, S | 0 mm | 83% |
| 29Sön | +19°C | +10°C | +21°C | 2-4 m/s, NO | 0 mm | 70% |
| 30Mån | +18°C | +8°C | +21°C | 2-3 m/s, NNV | 0 mm | 64% |
Väderextremer i Portorož i September
- Varmaste dagen: 1 september, +34°C
- Kallaste natten: 30 september, +8°C
- Mest nederbörd: 12 september, 8.2 mm
- Varmaste vattnet: 1 september, +25°C
- Kallaste vattnet: 25 september, +21°C
Klimat i Portorož i i september
- År: 2024
- Genomsnittlig dagtemperatur: +23°C
- Genomsnittlig nattemperatur: +15°C
- Vattentemperatur: —
- Nederbörd under månaden: 27.4 mm
- Dagar med nederbörd: 6
- Luftfuktighet: 71%
- Vind: 3 m/s
Lufttemperatur per dag
Dag
Natt
Tabellen visar genomsnittliga värden efter år.
| September | Dag | Natt | Hav | Vind | Nederbörd | Luftfuktighet |
|---|---|---|---|---|---|---|
| 1Fre | +25°C | +16°C | — | 1-2 m/s, V | 0.5 mm | 74% |
| 2Lör | +26°C | +16°C | — | 1-2 m/s, VNV | 0 mm | 76% |
| 3Sön | +26°C | +18°C | — | 1-2 m/s, NV | 0 mm | 74% |
| 4Mån | +27°C | +17°C | — | 4 m/s, ONO | 0 mm | 65% |
| 5Tis | +26°C | +16°C | — | 5-8 m/s, NO | 0 mm | 56% |
| 6Ons | +29°C | +16°C | — | 3-4 m/s, NO | 0 mm | 58% |
| 7Tor | +29°C | +17°C | — | 4-5 m/s, ONO | 0 mm | 56% |
| 8Fre | +31°C | +17°C | — | 3-4 m/s, NO | 0 mm | 50% |
| 9Lör | +31°C | +17°C | — | 3 m/s, NO | 0 mm | 54% |
| 10Sön | +31°C | +17°C | — | 2-3 m/s, N | 0 mm | 54% |
| 11Mån | +29°C | +17°C | — | 2 m/s, VNV | 0 mm | 57% |
| 12Tis | +28°C | +18°C | — | 2 m/s, V | 0 mm | 62% |
| 13Ons | +28°C | +19°C | — | 1-2 m/s, SV | 0 mm | 64% |
| 14Tor | +28°C | +18°C | — | 2 m/s, NV | 0.8 mm | 70% |
| 15Fre | +26°C | +16°C | — | 2 m/s, NO | 0.1 mm | 80% |
| 16Lör | +27°C | +17°C | — | 2 m/s, V | 0 mm | 70% |
| 17Sön | +25°C | +17°C | — | 1-2 m/s, VNV | 0 mm | 78% |
| 18Mån | +26°C | +18°C | — | 2 m/s, V | 0 mm | 78% |
| 19Tis | +24°C | +17°C | — | 3-4 m/s, SO | 3 mm | 84% |
| 20Ons | +26°C | +16°C | — | 2 m/s, SV | 0 mm | 78% |
| 21Tor | +24°C | +16°C | — | 3 m/s, S | 1.4 mm | 76% |
| 22Fre | +23°C | +17°C | — | 4 m/s, SSV | 8.9 mm | 89% |
| 23Lör | +22°C | +14°C | — | 3-5 m/s, SSO | 3 mm | 85% |
| 24Sön | +21°C | +14°C | — | 4-5 m/s, NO | 0 mm | 73% |
| 25Mån | +23°C | +12°C | — | 5-6 m/s, NO | 0 mm | 65% |
| 26Tis | +27°C | +15°C | — | 4-5 m/s, ONO | 0 mm | 70% |
| 27Ons | +27°C | +16°C | — | 4-6 m/s, NO | 0 mm | 57% |
| 28Tor | +27°C | +14°C | — | 3 m/s, NO | 0 mm | 56% |
| 29Fre | +27°C | +15°C | — | 2-3 m/s, NO | 0 mm | 60% |
| 30Lör | +28°C | +15°C | — | 2 m/s, NNO | 0 mm | 57% |
Väderextremer i Portorož i September
- Varmaste dagen: 8 september, +31°C
- Kallaste natten: 25 september, +12°C
- Mest nederbörd: 22 september, 8.9 mm
- Varmaste vattnet: —
- Kallaste vattnet: —
Klimat i Portorož i i september
- År: 2023
- Genomsnittlig dagtemperatur: +27°C
- Genomsnittlig nattemperatur: +16°C
- Vattentemperatur: —
- Nederbörd under månaden: 17.7 mm
- Dagar med nederbörd: 4
- Luftfuktighet: 68%
- Vind: 3 m/s
Lufttemperatur per dag
Dag
Natt
Tabellen visar genomsnittliga värden efter år.
| September | Dag | Natt | Hav | Vind | Nederbörd | Luftfuktighet |
|---|---|---|---|---|---|---|
| 1Tor | +23°C | +19°C | — | 5-6 m/s, ONO | 0 mm | 70% |
| 2Fre | +27°C | +17°C | — | 3-4 m/s, SSV | 0 mm | 60% |
| 3Lör | +25°C | +17°C | — | 2 m/s, SSO | 0 mm | 67% |
| 4Sön | +27°C | +17°C | — | 2 m/s, VSV | 0 mm | 74% |
| 5Mån | +29°C | +18°C | — | 2-3 m/s, SO | 0 mm | 70% |
| 6Tis | +29°C | +18°C | — | 1-2 m/s, VNV | 0 mm | 63% |
| 7Ons | +28°C | +19°C | — | 1-2 m/s, V | 0.4 mm | 61% |
| 8Tor | +24°C | +20°C | — | 3-4 m/s, SSO | 2 mm | 78% |
| 9Fre | +25°C |  +18°C | — | 2-4 m/s, SO | 5.9 mm | 85% |
| 10Lör | +25°C | +17°C | — | 2-3 m/s, SSO | 1.5 mm | 82% |
| 11Sön | +26°C | +16°C | — | 2 m/s, S | 0.3 mm | 72% |
| 12Mån | +26°C | +16°C | — | 2 m/s, S | 0 mm | 66% |
| 13Tis | +25°C | +15°C | — | 2 m/s, NV | 0 mm | 67% |
| 14Ons | +25°C | +18°C | — | 3-4 m/s, SSV | 0 mm | 75% |
| 15Tor | +25°C | +19°C | — | 4 m/s, SSV | 6 mm | 88% |
| 16Fre | +24°C | +16°C | — | 3 m/s, SSO | 1 mm | 91% |
| 17Lör | +16°C | +13°C | — | 6-7 m/s, ONO | 9.2 mm | 90% |
| 18Sön | +19°C | +12°C | — | 2-3 m/s, SV | 0 mm | 83% |
| 19Mån | +21°C | +13°C | — | 2-3 m/s, ONO | 0 mm | 74% |
| 20Tis | +22°C | +12°C | — | 2-3 m/s, SSV | 0 mm | 69% |
| 21Ons | +19°C | +12°C | — | 4-5 m/s, ONO | 0 mm | 62% |
| 22Tor | +21°C | +11°C | — | 3-4 m/s, ONO | 0 mm | 59% |
| 23Fre | +20°C | +11°C | — | 2-3 m/s, SSV | 0 mm | 61% |
| 24Lör | +19°C | +12°C | — | 3-5 m/s, S | 0 mm | 76% |
| 25Sön | +17°C | +14°C | — | 3-5 m/s, O | 2.4 mm | 95% |
| 26Mån | +19°C | +14°C | — | 1-2 m/s, SV | 0.2 mm | 92% |
| 27Tis | +18°C | +13°C | — | 2-3 m/s, O | 0.2 mm | 87% |
| 28Ons | +18°C | +12°C | — | 3-4 m/s, SO | 2.4 mm | 91% |
| 29Tor | +19°C | +14°C | — | 4 m/s, S | 4.2 mm | 92% |
| 30Fre | +20°C | +15°C | — | 3-4 m/s, S | 6.4 mm | 91% |
Väderextremer i Portorož i September
- Varmaste dagen: 5 september, +29°C
- Kallaste natten: 22 september, +11°C
- Mest nederbörd: 17 september, 9.2 mm
- Varmaste vattnet: —
- Kallaste vattnet: —
Klimat i Portorož i i september
- År: 2022
- Genomsnittlig dagtemperatur: +23°C
- Genomsnittlig nattemperatur: +15°C
- Vattentemperatur: —
- Nederbörd under månaden: 42.1 mm
- Dagar med nederbörd: 10
- Luftfuktighet: 76%
- Vind: 3 m/s
Lufttemperatur per dag
Dag
Natt
Tabellen visar genomsnittliga värden efter år.
| September | Dag | Natt | Hav | Vind | Nederbörd | Luftfuktighet |
|---|---|---|---|---|---|---|
| 1Ons | +28°C | +16°C | — | 2 m/s, S | 0 mm | 67% |
| 2Tor | +27°C | +16°C | — | 2-3 m/s, SSV | 0 mm | 56% |
| 3Fre | +27°C | +16°C | — | 2-3 m/s, SSO | 0 mm | 56% |
| 4Lör | +28°C | +16°C | — | 2-3 m/s, SO | 0.1 mm | 60% |
| 5Sön | +29°C | +18°C | — | 3-4 m/s, ONO | 0 mm | 54% |
| 6Mån | +29°C | +17°C | — | 3 m/s, NO | 0 mm | 47% |
| 7Tis | +29°C | +17°C | — | 3 m/s, ONO | 0 mm | 46% |
| 8Ons | +29°C | +17°C | — | 2-4 m/s, O | 0 mm | 44% |
| 9Tor | +28°C | +15°C | — | 2 m/s, SSO | 0 mm | 40% |
| 10Fre | +27°C | +16°C | — | 2 m/s, VSV | 0 mm | 48% |
| 11Lör | +27°C | +15°C | — | 1-2 m/s, VNV | 0 mm | 60% |
| 12Sön | +29°C | +18°C | — | 2 m/s, SSO | 0 mm | 50% |
| 13Mån | +29°C | +17°C | — | 2-3 m/s, SSO | 0 mm | 47% |
| 14Tis | +29°C | +18°C | — | 1-2 m/s, S | 0 mm | 48% |
| 15Ons | +27°C | +20°C | — | 2 m/s, VSV | 0 mm | 52% |
| 16Tor | +25°C | +19°C | — | 3-4 m/s, SSV | 5.6 mm | 71% |
| 17Fre | +21°C | +18°C | — | 2 m/s, SO | 4.1 mm | 93% |
| 18Lör | +23°C | +16°C | — | 2 m/s, O | 0 mm | 90% |
| 19Sön | +20°C | +16°C | — | 2 m/s, OSO | 3.2 mm | 92% |
| 20Mån | +20°C | +14°C | — | 4 m/s, O | 1.3 mm | 89% |
| 21Tis | +22°C | +13°C | — | 4-5 m/s, NO | 0 mm | 68% |
| 22Ons | +21°C | +13°C | — | 3 m/s, ONO | 0 mm | 63% |
| 23Tor | +22°C | +13°C | — | 2-3 m/s, SSO | 0 mm | 65% |
| 24Fre | +24°C | +13°C | — | 1-2 m/s, VSV | 0 mm | 77% |
| 25Lör | +23°C | +14°C | — | 1-2 m/s, NV | 0 mm | 80% |
| 26Sön | +24°C | +16°C | — | 2 m/s, VSV | 1.7 mm | 81% |
| 27Mån | +23°C | +17°C | — | 2-3 m/s, SV | 0.1 mm | 81% |
| 28Tis | +26°C | +16°C | — | 2-3 m/s, ONO | 0 mm | 72% |
| 29Ons | +25°C | +18°C | — | 2 m/s, SSV | 0 mm | 63% |
| 30Tor | +19°C | +15°C | — | 6 m/s, ONO | 0 mm | 76% |
Väderextremer i Portorož i September
- Varmaste dagen: 5 september, +29°C
- Kallaste natten: 21 september, +13°C
- Mest nederbörd: 16 september, 5.6 mm
- Varmaste vattnet: —
- Kallaste vattnet: —
Klimat i Portorož i i september
- År: 2021
- Genomsnittlig dagtemperatur: +25°C
- Genomsnittlig nattemperatur: +16°C
- Vattentemperatur: —
- Nederbörd under månaden: 16.1 mm
- Dagar med nederbörd: 5
- Luftfuktighet: 65%
- Vind: 2 m/s
Lufttemperatur per dag
Dag
Natt
Tabellen visar genomsnittliga värden efter år.
| September | Dag | Natt | Hav | Vind | Nederbörd | Luftfuktighet |
|---|---|---|---|---|---|---|
| 1Tis | +22°C | +16°C | — | 3-4 m/s, VSV | 3 mm | 78% |
| 2Ons | +25°C | +17°C | — | 2 m/s, S | 0.1 mm | 68% |
| 3Tor | +26°C | +17°C | — | 2-4 m/s, S | 0 mm | 67% |
| 4Fre | +27°C | +17°C | — | 2 m/s, S | 0 mm | 63% |
| 5Lör | +27°C | +18°C | — | 1-2 m/s, VSV | 0 mm | 67% |
| 6Sön | +26°C | +19°C | — | 1-2 m/s, VSV | 0.1 mm | 69% |
| 7Mån | +26°C | +19°C | — | 3-4 m/s, ONO | 0 mm | 66% |
| 8Tis | +26°C | +18°C | — | 4-5 m/s, NO | 0 mm | 62% |
| 9Ons | +27°C | +16°C | — | 2-3 m/s, SSO | 0 mm | 64% |
| 10Tor | +28°C | +19°C | — | 2 m/s, S | 0 mm | 64% |
| 11Fre | +28°C | +19°C | — | 3-4 m/s, ONO | 0 mm | 64% |
| 12Lör | +29°C | +20°C | — | 3-4 m/s, SSV | 0 mm | 63% |
| 13Sön | +31°C | +20°C | — | 3-4 m/s, ONO | 0 mm | 60% |
| 14Mån | +30°C | +21°C | — | 4 m/s, ONO | 0 mm | 58% |
| 15Tis | +30°C | +20°C | — | 3-4 m/s, ONO | 0 mm | 55% |
| 16Ons | +29°C | +20°C | — | 2-3 m/s, S | 0 mm | 60% |
| 17Tor | +29°C | +20°C | — | 4-5 m/s, ONO | 0 mm | 58% |
| 18Fre | +25°C | +18°C | — | 6-7 m/s, ONO | 0 mm | 57% |
| 19Lör | +26°C | +15°C | — | 3-6 m/s, NO | 0 mm | 56% |
| 20Sön | +26°C | +16°C | — | 2-3 m/s, SSO | 0 mm | 50% |
| 21Mån |  +25°C | +17°C | — | 1 m/s, SV | 1.7 mm | 67% |
| 22Tis | +23°C | +17°C | — | 2 m/s, SSO | 13.1 mm | 76% |
| 23Ons | +21°C | +17°C | — | 2-3 m/s, S | 2.3 mm | 86% |
| 24Tor | +22°C | +17°C | — | 2-3 m/s, S | 0.4 mm | 84% |
| 25Fre | +21°C | +14°C | — | 5-6 m/s, SSV | 19.7 mm | 84% |
| 26Lör | +15°C | +10°C | — | 3-6 m/s, V | 3.9 mm | 71% |
| 27Sön | +18°C | +10°C | — | 2-3 m/s, SV | 1.1 mm | 65% |
| 28Mån | +13°C | +11°C | — | 4-8 m/s, SSV | 6.7 mm | 90% |
| 29Tis | +18°C | +10°C | — | 2 m/s, V | 0 mm | 75% |
| 30Ons | +19°C | +13°C | — | 1 m/s, VSV | 0 mm | 70% |
Väderextremer i Portorož i September
- Varmaste dagen: 13 september, +31°C
- Kallaste natten: 26 september, +10°C
- Mest nederbörd: 25 september, 19.7 mm
- Varmaste vattnet: —
- Kallaste vattnet: —
Klimat i Portorož i i september
- År: 2020
- Genomsnittlig dagtemperatur: +25°C
- Genomsnittlig nattemperatur: +17°C
- Vattentemperatur: —
- Nederbörd under månaden: 52.1 mm
- Dagar med nederbörd: 8
- Luftfuktighet: 67%
- Vind: 3 m/s
Väder i Portorož efter år i i september
| År | Dag | Natt | Nederbörd | Dagar med nederbörd | Havstemperatur |
|---|---|---|---|---|---|
| 2025 | +24°C | +15°C | 22.5 mm | 7 | — |
| 2024 | +23°C | +15°C | 27.4 mm | 6 | — |
| 2023 | +27°C | +16°C | 17.7 mm | 4 | — |
| 2022 | +23°C | +15°C | 42.1 mm | 10 | — |
| 2021 | +25°C | +16°C | 16.1 mm | 5 | — |
| 2020 | +25°C | +17°C | 52.1 mm | 8 | — |
september: väder i Portorož efter år
| Månad | Dag | Natt | Dagar med nederbörd | Soliga dagar |
|---|---|---|---|---|
| Januari | +9°C | +2°C | 5 | 12 |
| Februari | +11°C | +3°C | 4 | 9 |
| Mars | +13°C | +5°C | 5 | 14 |
| April | +16°C | +8°C | 5 | 11 |
| Maj | +21°C | +12°C | 6 | 9 |
| Juni | +27°C | +18°C | 4 | 15 |
| Juli | +30°C | +20°C | 4 | 18 |
| Augusti | +30°C | +20°C | 4 | 18 |
| September | +24°C | +16°C | 7 | 15 |
| Oktober | +19°C | +11°C | 6 | 13 |
| November | +13°C | +6°C | 6 | 11 |
| December | +10°C | +4°C | 5 | 11 |