The climate in Saitama during September can be summarized as warm, humid and wet.
September is in the fall / autumn in Saitama and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a muggy 27°C (80°F), whilst at night 19°C (67°F) is normal.
|Daytime temperature||26.5°C 79.6°F|
|Nightly temperature||19.2°C 66.5°F|
|Average temperature||22.8°C 73°F|
|Daily sunshine||4.1 hrs|
|Avg rainfall||185 mm 7.3 ins|
|Rainy days||19 days|
|Sea temperature||25.3°C 77.6°F|
|Windspeed||7.9kph 5 mph|
On average September is the wettest month of the year in Saitama with around 185mm 7.3 inches of rain making it a wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.1 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Saitama in September 2022.
|Hottest month:||August||30.9°C 87.6°F|
|Driest month:||January||34mm 1.3ins|
|Coldest month:||January||9.2°C 48.6°F|
|Wettest month:||September||185mm 7.3ins|