Weather in Surabaja in september
Climate normals based on 10 years of historical data for Surabaja, Indonesien.
Average high
33°C
Average low
25°C
Rainfall
22 mm
4 rainy days
Sunshine
7.2h/day
Luftfuktighet
63%
Sea temperature
29.7°C
How Hot Is Surabaja in september?
Heat builds in Surabaja: 33°C highs, 25°C lows, marking September as a step toward annual peak.
Sunshine Hours in september
Good sun in Surabaja this September: 7.2h a day on average, daylight from 5:20 am to 5:25 pm.
Does It Rain In Surabaja In september?
September is mostly dry in Surabaja: 22mm of rain on 4 days.
Is Surabaja Humid In september?
High levels of humidity in Surabaja year-round (about 63%) will make it feel warmer than the thermometer suggests.
How Warm Is The Sea In Surabaja In september?
Surabaja's waters peak at 29.7°C in September — extremely warm, ideal for long swims.
Wind In Surabaja In september
Breezes around 19 kph in Surabaja this September — comfortable for outdoor activity.
Cloud Cover In Surabaja In september
September sees mixed skies in Surabaja: cloud cover averages 34%.
Cities With Similar Weather In september
Weather in Surabaja, month by month
| Month | High / Low | Regn | |
|---|---|---|---|
| Vädret i januari | 31°C / 26°C | 339mm | Details → |
| Vädret i februari | 30°C / 25°C | 366mm | Details → |
| Vädret i mars | 31°C / 26°C | 358mm | Details → |
| Vädret i april | 31°C / 26°C | 236mm | Details → |
| Vädret i maj | 31°C / 26°C | 101mm | Details → |
| Vädret i juni | 31°C / 25°C | 70mm | Details → |
| Vädret i juli | 31°C / 24°C | 27mm | Details → |
| Vädret i augusti | 32°C / 24°C | 11mm | Details → |
| Vädret i september | 33°C / 25°C | 22mm | |
| Vädret i oktober | 33°C / 26°C | 90mm | Details → |
| Vädret i november | 32°C / 26°C | 214mm | Details → |
| Vädret i december | 31°C / 26°C | 328mm | Details → |