Monthly climate guide
Arusha weather in September
September in Arusha is typically hot, with average daytime highs around 30°C (85°F) and night-time lows near 15°C (60°F). The month usually brings about 25 mm of rain (fairly dry) and is a mix of sun and cloud. Daytime highs are 2°C warmer than August and about the same as October.
What stands out in September
- It's one of the drier stretches of the year in Arusha.
- Just 70 km apart, but Arusha runs about 2°C cooler than Moshi this month.
- Rain is well below Arusha's usual level (around 73% less).
- Evenings cool off sharply: the daily range is around 14°C, so pack a layer.
Avg high
30°C
85°F
Avg low
15°C
60°F
Rainfall
25 mm
fairly dry
Humidity
62%
relative
Sky
44%
cloud · a mix of sun and cloud
Arusha weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 30°C / 86°F | 18°C / 64°F | 107 mm | 66% | 56% |
| February | 31°C / 87°F | 18°C / 64°F | 95 mm | 65% | 54% |
| March | 30°C / 86°F | 18°C / 65°F | 116 mm | 70% | 64% |
| April | 28°C / 82°F | 18°C / 64°F | 177 mm | 79% | 75% |
| May | 26°C / 78°F | 16°C / 61°F | 109 mm | 82% | 66% |
| June | 26°C / 78°F | 14°C / 58°F | 21 mm | 77% | 59% |
| July | 26°C / 80°F | 14°C / 57°F | 12 mm | 70% | 52% |
| August | 28°C / 82°F | 15°C / 58°F | 17 mm | 67% | 52% |
| September | 30°C / 85°F | 15°C / 60°F | 25 mm | 62% | 44% |
| October | 30°C / 87°F | 17°C / 62°F | 88 mm | 64% | 54% |
| November | 29°C / 85°F | 18°C / 64°F | 193 mm | 72% | 67% |
| December | 29°C / 84°F | 18°C / 64°F | 132 mm | 73% | 64% |
What to pack for September
- Light, breathable clothing (cotton or linen)
- A sun hat and high-SPF sunscreen
- A refillable water bottle
- An extra layer — evenings are noticeably cooler than afternoons
Is September a good time to visit Arusha?
Compare the months in the chart above to find your ideal window.
Best time to visit Arusha →Other Tanzania cities in September
Cite or embed this data
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Arusha weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/tanzania/arusha/september
<a href="https://weathercompare.eu/weather/tanzania/arusha/september">Arusha weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/tanzania/arusha" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Arusha weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/tanzania/arusha/september">Arusha weather in September</a> – WeatherCompare</p>
Arusha in September: quick answers
Is September a good time to visit Arusha?
September is a reasonable time for Arusha: highs around 30°C and about 25 mm of rain, though not one of the three best months.
How warm is Arusha in September?
Average highs are about 30°C (85°F) and average lows about 15°C (60°F), based on 10 years of daily data.
Does it rain a lot in Arusha in September?
Arusha typically gets around 25 mm of rain in September — fairly dry.
Figures are long-term averages for the area around Arusha (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.