Weather in Okayama in september
Climate normals based on 10 years of historical data for Okayama, Japan.
Average high
28°C
Average low
21°C
Rainfall
211 mm
12 rainy days
Sunshine
2.9h/day
Luftfuktighet
74%
Sea temperature
29.0°C
How Hot Is Okayama in september?
September starts to ease Okayama's heat — 28°C afternoons, 21°C cooler overnights.
Sunshine Hours in september
Okayama sees little sun in September — only 2.9h a day on average, despite daylight from 5:45 am to 6:10 pm.
Does It Rain In Okayama In september?
Heavy rains soak Okayama through September — 211mm of rain across 12 days.
Is Okayama Humid In september?
High levels of humidity in Okayama year-round (about 74%) will make it feel warmer than the thermometer suggests.
How Warm Is The Sea In Okayama In september?
Okayama's waters peak at 29.0°C in September — extremely warm, ideal for long swims.
Wind In Okayama In september
September brings gentle winds to Okayama — averaging 15 kph.
Cloud Cover In Okayama In september
Grey, cloudy days are the norm: 66% average cover in Okayama.
Cities With Similar Weather In september
Weather in Okayama, month by month
| Month | High / Low | Regn | |
|---|---|---|---|
| Vädret i januari | 9°C / 2°C | 46mm | Details → |
| Vädret i februari | 10°C / 2°C | 50mm | Details → |
| Vädret i mars | 14°C / 5°C | 106mm | Details → |
| Vädret i april | 19°C / 10°C | 155mm | Details → |
| Vädret i maj | 23°C / 14°C | 133mm | Details → |
| Vädret i juni | 26°C / 19°C | 219mm | Details → |
| Vädret i juli | 30°C / 24°C | 286mm | Details → |
| Vädret i augusti | 32°C / 25°C | 203mm | Details → |
| Vädret i september | 28°C / 21°C | 211mm | |
| Vädret i oktober | 22°C / 15°C | 116mm | Details → |
| Vädret i november | 17°C / 9°C | 68mm | Details → |
| Vädret i december | 11°C / 4°C | 49mm | Details → |