Karatu Weather in September
What's the weather like in Karatu (Arusha) in September 2025?
The climate in Karatu during September can be summarized as mild and very dry.
September is in the spring in Karatu and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a comfortable 24°C (76°F), whilst at night 11°C (52°F) is normal.
| Daytime temperature | 24.3°C 75.7°F |
|---|---|
| Nightly temperature | 11.4°C 52.4°F |
| Average temperature | 17.8°C 64°F |
| Daily sunshine | 8.6 hrs |
| Avg rainfall | 4 mm 0.1 ins |
| Rainy days | 4 days |
| Sea temperature | 25.8°C 78.4°F |
| Humidity | 63% |
| Windspeed | 12.2kph 8 mph |
On average September is the driest month of the year in Karatu with around 4mm 0.1 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 8.6 hours of sunshine per day.
September temperatures in Karatu
September rainfall
September hourly sunshine
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 Karatu in September 2025.
Other monthly averages
Best places to visit in September
Karatu weather stats
| Hottest month: | March | 25.5°C 77.9°F |
|---|---|---|
| Driest month: | September | 4mm 0.2ins |
| Sunniest month: | October | 9hrs |
| Coldest month: | July | 21°C 69.8°F |
| Wettest month: | April | 178mm 7ins |
© Google