Arusha climate

Name: Arusha
Address: TZ

Arusha is warmest in February, with average highs of 28 °C, and coldest in July, when nights average 12 °C. April is the wettest month (174 mm) and August the driest (7.5 mm). Figures are 1991–2020 climate normals.

Across a full year Arusha averages 844 mm of rain and 172 days above 25 °C.

Tanzania · population 617,631 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month February 28 °C
Coldest month July 12 °C
Driest month August 8 mm
Wettest month April 174 mm
Least cloud September 51 % cloud
Hottest on record February 34 °C
Coldest on record August 8.6 °C

What to expectArusha through the year

Arusha has a clear annual cycle: average daily highs run from 21 °C in July to 28 °C in February, a swing of 5.8 °C in mean temperature across the year.

Counted across a normal year, 172 days a year reach 25 °C, 13 of them reach 30 °C. The warmest reading in the 1991–2020 record is 34 °C, in February.

Rain is strongly seasonal. April averages 174 mm against 8 mm in August — 23 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	27.5 °C	86 mm	60 %
February	28.2 °C	78 mm	58 %
March	27.1 °C	146 mm	66 %
April	24.2 °C	174 mm	78 %
May	22.5 °C	73 mm	72 %
June	21.6 °C	10 mm	67 %
July	21.4 °C	10 mm	63 %
August	22.6 °C	8 mm	61 %
September	24.8 °C	8 mm	51 %
October	26.0 °C	36 mm	59 %
November	25.9 °C	104 mm	68 %
December	26.3 °C	109 mm	64 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	27.5 °C	15.9 °C	21.6 °C	33.4 °C	11.3 °C	27	3
February	28.2 °C	16.4 °C	22.1 °C	33.9 °C	11.6 °C	27	6
March	27.1 °C	16.7 °C	21.5 °C	32.5 °C	12.9 °C	26	3
April	24.2 °C	16.5 °C	19.8 °C	29.8 °C	13.4 °C	8	0
May	22.5 °C	15.0 °C	18.4 °C	26.8 °C	11.5 °C	1	0
June	21.6 °C	13.0 °C	17.0 °C	25.9 °C	9.7 °C	0	0
July	21.4 °C	12.0 °C	16.4 °C	26.3 °C	8.8 °C	0	0
August	22.6 °C	12.6 °C	17.3 °C	27.3 °C	8.6 °C	3	0
September	24.8 °C	13.7 °C	19.0 °C	29.3 °C	10.6 °C	14	0
October	26.0 °C	15.1 °C	20.3 °C	30.1 °C	11.7 °C	22	0
November	25.9 °C	16.1 °C	20.6 °C	31.0 °C	13.4 °C	21	0
December	26.3 °C	16.0 °C	20.9 °C	31.5 °C	11.4 °C	23	1

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	86 mm	11	12 h/day	60 %	64 %	8.6 km/h
February	78 mm	9	12 h/day	58 %	62 %	9.0 km/h
March	146 mm	17	12 h/day	66 %	70 %	8.5 km/h
April	174 mm	22	12 h/day	78 %	81 %	9.6 km/h
May	73 mm	12	12 h/day	72 %	80 %	11 km/h
June	10 mm	3	12 h/day	67 %	75 %	12 km/h
July	10 mm	2	12 h/day	63 %	72 %	13 km/h
August	8 mm	2	12 h/day	61 %	69 %	13 km/h
September	8 mm	2	12 h/day	51 %	64 %	13 km/h
October	36 mm	7	12 h/day	59 %	65 %	12 km/h
November	104 mm	17	12 h/day	68 %	71 %	9.6 km/h
December	109 mm	16	12 h/day	64 %	71 %	8.3 km/h

How Arusha compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Arusha	28 °C	12 °C	844 mm	172
Moshi · Tanzania	29 °C	16 °C	630 mm	232
Kitengela · Kenya	27 °C	13 °C	668 mm	128
Ongata Rongai · Kenya	26 °C	12 °C	570 mm	95
Nairobi · Kenya	27 °C	12 °C	656 mm	124
Kikuyu · Kenya	25 °C	11 °C	639 mm	31
Mwala · Kenya	28 °C	14 °C	631 mm	200

Where Arusha ranks

Ranking	Position	Value
Places with the best weather in Africa in September	5th of 50	96/100
Places with the best weather in Africa in August	8th of 50	97/100
Places with the best weather in the world in August	10th of 50	97/100
Places with the best weather in Africa in July	23rd of 50	95/100
Places with the best weather in Africa in June	30th of 50	95/100
Places with the best weather in the world in September	35th of 50	96/100

Planning a trip? See the best time to visit Arusha.

QuestionsCommon questions about Arusha’s climate

When is the best time to visit Arusha?

That depends on what you want, so the honest answer is a comparison rather than a single month. April, October, November sit closest to 20 °C on average, February is the warmest month and August the driest. The month-by-month table above has the full picture.

How hot does Arusha get?

In February, the warmest month, daily highs average 28 °C. About 13 days a year pass 30 °C. The highest value in the 1991–2020 record is 34 °C.

How cold does it get in winter?

Nights average 12 °C in July, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Arusha?

April, averaging 174 mm over 22 days with rain. The driest month is August with 8 mm. The year as a whole averages 844 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Arusha rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Data point: -3.367°, 36.683° (the coordinates the reanalysis values are taken for)
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.