Climate guide for Arusha, Tanzania

Best Time to Visit
Arusha

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01 · Tanzania

About Arusha

Most northern-circuit safaris start here, with outfitters along the main roads and Arusha National Park close enough for a day trip. Mount Meru's cone rises behind town, and the Maasai market and coffee farms give the stopover some substance. October sits at the end of the dry season, with clear views and good wildlife concentrations before the short rains arrive.

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Did you know?

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Travel Tips

01Safari Briefing Hub
Arusha is the launch pad for northern circuit safaris - confirm vehicle type, park fees, and what is included in meals and water. Meet your guide the evening before departure when possible.
02Clock Tower & Markets
The Clock Tower area and local markets are best mid-morning. Keep valuables secure in crowded aisles; agree taxi fares before riding to cultural heritage sites nearby.
03Altitude & Dust
Arusha sits near 1,400 m with dusty dry seasons. Pack lip balm, sunglasses, and a light scarf for game drives that start from town.
04Cash for Tips & Fees
Park fees are often prepaid, but guide and cook tips are customarily cash in USD or shillings. ATMs exist but can run dry - withdraw before remote safari days.

Things to do in Arusha

Arusha, Tanzania. Live activities and tours from GetYourGuide, matched to this destination.

When to visit Arusha: the short answer

Plan Arusha for October, with September, March close behind — the stretch with the most usable temperatures and the fewest lost days to rain: October averages 22°C with 41 mm of rain and about 30 days with 6+ hours of sunshine. The months to avoid unless you have a specific reason are December, November. If budget matters more than perfect weather, May is the strongest of the low-rate months at 7.6/10.

Across the year Arusha swings from 19°C in July to 23°C in March, a 4-degree spread, while rainfall ranges from 41 mm in October to 330 mm in November. In short, Arusha is not equally good year-round — the gap between its best and worst month is 2.7 points on the same 10-point scale.

Warmest month: March (23°C). Coolest: July (19°C). Driest: October (41 mm). Wettest: November (330 mm).

Arusha month by month

January in Arusha: strong conditions, 5th of 12

Good · 7.8/10

Trail conditions at 22°C (71°F) favour early starts and shaded routes in January; midday is for water breaks, not for exposed climbs.

130 mm of rain makes this a wet month here, though with about 28 days with 6+ hours of sunshine there is still bright weather between the fronts.

That is 7.8/10 on the same scale — 5th of 12 months, versus 9.5/10 for the best month here.

Budget for mid-season pricing, and crowds are moderate.

Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella, footwear you can get muddy.

If your dates are flexible, October is materially better in Arusha — 1.7 points higher on the same scale.

February in Arusha — reliably good (8th best month)

Good · 7.2/10

Trail conditions at 23°C (73°F) favour early starts and shaded routes in February; midday is for water breaks, not for exposed climbs.

155 mm of rain makes this a wet month here, though with about 28 days with 6+ hours of sunshine there is still bright weather between the fronts.

That is 7.2/10 on the same scale — 8th of 12 months, versus 9.5/10 for the best month here.

Expect low-season pricing, and crowds are light for this destination.

Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella, footwear you can get muddy.

If your dates are flexible, October is materially better in Arusha — 2.3 points higher on the same scale.

March holds up well in Arusha — 3rd best month

Good · 8/10

March averages 23°C (73°F) — warm for the outdoors: start trails early, use shaded routes at midday, and carry more water than you think you need.

Rainfall runs 93 mm, so plan one flexible day in three; you still get about 30 days with 6+ hours of sunshine and 12 hours of daylight.

It scores 8/10 here, 3rd of 12 months, against 9.5/10 in the destination's best month.

Plan for mid-season pricing, with crowds are moderate.

Pack light clothing, a hat and real sun protection, a packable rain layer, footwear you can get muddy.

Flexible dates? October scores 1.5 points higher here — enough to change the trip.

April holds up well in Arusha — 10th best month

Good · 7/10

Trail conditions at 22°C (71°F) favour early starts and shaded routes in April; midday is for water breaks, not for exposed climbs.

194 mm of rain makes this a wet month here, though with about 21 days with 6+ hours of sunshine there is still bright weather between the fronts.

That is 7/10 on the same scale — 10th of 12 months, versus 9.5/10 for the best month here.

Expect low-season pricing, and crowds are light for this destination.

Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella, footwear you can get muddy.

If your dates are flexible, October is materially better in Arusha — 2.5 points higher on the same scale.

May holds up well in Arusha — 6th best month

Good · 7.6/10

May 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.

At 101 mm this is a genuinely wet month: about 18 days with 6+ hours of sunshine in total, and outdoor plans need an indoor fallback.

It scores 7.6/10 here, 6th of 12 months, against 9.5/10 in the destination's best month.

Figure on low-season pricing, with crowds are light for this destination. That combination — decent conditions at the lowest rates of the year — is the best value window on this page.

Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella, footwear you can get muddy.

Flexible dates? October scores 1.9 points higher here — enough to change the trip.

June holds up well in Arusha — 7th best month

Good · 7.6/10

Temperatures hover around 19°C (66°F) — the kind of month where neither heat nor cold forces the schedule.

Budget for roughly 92 mm of rain this month — a flexible day or two helps — with about 16 days with 6+ hours of sunshine and 11.8 hours of daylight to work around it.

That is 7.6/10 on the same scale — 7th of 12 months, versus 9.5/10 for the best month here.

Budget for low-season pricing, and crowds are light for this destination.

Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer, footwear you can get muddy.

If your dates are flexible, October is materially better in Arusha — 1.9 points higher on the same scale.

July in Arusha: strong conditions, 4th of 12

Good · 7.9/10

Temperatures hover around 19°C (65°F) — the kind of month where neither heat nor cold forces the schedule.

Budget for roughly 90 mm of rain this month — a flexible day or two helps — with about 18 days with 6+ hours of sunshine and 11.8 hours of daylight to work around it.

That is 7.9/10 on the same scale — 4th of 12 months, versus 9.5/10 for the best month here.

Expect mid-season pricing, and crowds are moderate.

Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer, footwear you can get muddy.

If your dates are flexible, October is materially better in Arusha — 1.6 points higher on the same scale.

August holds up well in Arusha — 9th best month

Good · 7.1/10

August averages 19°C (66°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

206 mm makes this the wettest stretch of the year, though about 21 days with 6+ hours of sunshine still appear — keep an indoor fallback ready.

It scores 7.1/10 here, 9th of 12 months, against 9.5/10 in the destination's best month.

Plan for low-season pricing, with crowds are moderate.

Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella, footwear you can get muddy.

Flexible dates? October scores 2.4 points higher here — enough to change the trip.

September holds up well in Arusha — 2nd best month

Good · 8.4/10

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.

Plan for mid-season pricing, with crowds are moderate.

Pack light clothing, a hat and real sun protection, a packable rain layer, footwear you can get muddy.

October: the best month of the year in Arusha

Best window · 9.5/10

Trail conditions at 22°C (72°F) favour early starts and shaded routes in October; midday is for water breaks, not for exposed climbs.

With around 41 mm of rain, any showers tend to pass through rather than settle in; about 30 days with 6+ hours of sunshine and 12.1 hours of daylight fill the rest.

On our climate-comfort scale this is the top-ranked month of the year for Arusha at 9.5/10 — the reference point every other month on this page is measured against.

Expect peak pricing, and crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack light clothing, a hat and real sun protection, footwear you can get muddy.

November in Arusha — reliably good (11th best month)

Good · 7/10

Trail conditions at 22°C (72°F) favour early starts and shaded routes in November; midday is for water breaks, not for exposed climbs.

This is the year's wettest stretch at 330 mm, but with about 22 days with 6+ hours of sunshine it is not a total loss; an indoor fallback covers the risk.

That is 7/10 on the same scale — 11th of 12 months, versus 9.5/10 for the best month here.

Expect low-season pricing, and crowds are light for this destination.

Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella, footwear you can get muddy.

If your dates are flexible, October is materially better in Arusha — 2.5 points higher on the same scale.

December in Arusha: mixed conditions, plan around the weather

Trade-offs · 6.8/10

December averages 22°C (72°F) — warm for the outdoors: start trails early, use shaded routes at midday, and carry more water than you think you need.

256 mm makes this the wettest stretch of the year, though about 26 days with 6+ hours of sunshine still appear — keep an indoor fallback ready.

It scores 6.8/10 here, 12th of 12 months, against 9.5/10 in the destination's best month.

Figure on low-season pricing, with crowds are light for this destination.

Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella, footwear you can get muddy.

Flexible dates? October scores 2.7 points higher here — enough to change the trip.

FAQ

Frequently asked

When is the best time to visit Arusha, Tanzania?
In Ideal Weather mode, the best months to visit Arusha are October. October is the single peak month with an Ideal Weather score of 9.5/10 based on temperature, rainfall, humidity, daylight and days with 6+ hours of sunshine.
What is the weather like in Arusha year-round?
Arusha has a climate profile suited to nature and wildlife travel. Average monthly temperatures range from 19°C in July to 23°C in March, with Ideal Weather scores between 6.8 and 9.5 out of 10.
Which months should I avoid in Arusha?
The lowest Ideal Weather-scoring months in Arusha are December (6.8/10), April (7.0/10), November (7.0/10). These months typically combine less comfortable temperatures, higher rainfall or fewer days with 6+ hours of sunshine.
When is the rainy season in Arusha?
November is the wettest month in Arusha, averaging about 330 mm of rainfall. October is the driest, at roughly 41 mm.
Which is the sunniest month in Arusha?
March sees the most sun in Arusha, with about 30 days with 6+ hours of sunshine on average - ideal for outdoor plans.
Is Arusha a good destination for nature and wildlife travel?
Arusha is well suited to nature and wildlife travel. Its highest Ideal Weather window (October) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for Arusha calculated?
Each month receives an Ideal Weather score from 0-10 using ERA5 climate normals for Arusha: temperature comfort, precipitation, humidity, daylight hours, and days with 6+ hours of sunshine - weighted for nature and wildlife travel.

Climate data: Open-Meteo ERA5 historical archive, the five most recent complete years (2021–2025). Scores are monthly averages for that window, not forecasts, and short-window precipitation can differ from longer-term normals. “Sunny days” count days with at least 6 hours of measured sunshine — they are not dry days.

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