September · Tanzania
Best time to visit Arusha in September Weather, crowds & prices
Weather in Arusha in September
Average temperature 20°C, 95 mm of rain, about 26 days with 6+ hours of sunshine and 73% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
8.4/10
Ranked #2 of 12 months
- Avg temp
- 20°C
- Rainfall
- 95 mm
- Humidity
- 73%
- Days with 6h+ sun
- 26
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Arusha scores 8.4/10 for nature and wildlife travel - one of the top 12-month picks (#2). Expect around 20°C, 95 mm of rain, and roughly 26 days with 6+ hours of sunshine this month.
Arusha sits beneath Mount Meru as the staging town for Serengeti, Ngorongoro, and northern Tanzania safaris.
September holds up well in Arusha — 2nd best month
September averages 20°C (69°F) — warm for the outdoors: start trails early, use shaded routes at midday, and carry more water than you think you need.
Rainfall runs 95 mm, so plan one flexible day in three; you still get about 26 days with 6+ hours of sunshine and 12 hours of daylight.
It scores 8.4/10 here, 2nd of 12 months, against 9.5/10 in the destination's best month.
Pack light clothing, a hat and real sun protection, a packable rain layer, footwear you can get muddy.
Plan for mid-season pricing, with crowds are moderate.
Frequently asked
- What is the weather like in Arusha in September?
- In September, Arusha averages 20°C, 95 mm of rain, and about 26 days with 6+ hours of sunshine. Its climate-comfort score is 8.4/10.
- Is September a good time to visit Arusha?
- September earns a 8.4/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Arusha in September?
- Expect about 95 mm of rain in September. Average humidity is 73% and there are about 26 days with 6+ hours of sunshine.
Curated in Arusha
Tickets & experiences
Things to do in Arusha
Arusha, Tanzania. Live activities and tours from GetYourGuide, matched to this destination.