Asmara climate

Name: Asmara
Address: ER

Asmara is warmest in June, with average highs of 25 °C, and coldest in January, when nights average 9.5 °C. August is the wettest month (196 mm) and October the driest (28 mm). Figures are 1991–2020 climate normals.

Across a full year Asmara averages 763 mm of rain and 43 days above 25 °C.

Eritrea · population 563,930 · 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 June 25 °C
Coldest month January 9.5 °C
Driest month October 28 mm
Wettest month August 196 mm
Least cloud October 31 % cloud
Hottest on record June 29 °C
Coldest on record February 1.0 °C

What to expectAsmara through the year

Asmara has a clear annual cycle: average daily highs run from 20 °C in January to 25 °C in June, a swing of 4.9 °C in mean temperature across the year.

Counted across a normal year, 43 days a year reach 25 °C. The warmest reading in the 1991–2020 record is 29 °C, in June.

Rain is strongly seasonal. August averages 196 mm against 28 mm in October — 7.0 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	20.4 °C	46 mm	54 %
February	22.0 °C	29 mm	49 %
March	23.3 °C	46 mm	43 %
April	23.7 °C	61 mm	39 %
May	24.4 °C	44 mm	33 %
June	25.2 °C	35 mm	35 %
July	22.3 °C	174 mm	61 %
August	22.0 °C	196 mm	67 %
September	23.3 °C	34 mm	32 %
October	21.8 °C	28 mm	31 %
November	20.8 °C	33 mm	40 %
December	20.1 °C	36 mm	52 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C
January	20.4 °C	9.5 °C	14.4 °C	24.7 °C	3.2 °C	0
February	22.0 °C	10.3 °C	15.6 °C	26.2 °C	1.0 °C	1
March	23.3 °C	11.4 °C	16.9 °C	28.8 °C	4.5 °C	4
April	23.7 °C	12.6 °C	17.8 °C	27.8 °C	6.7 °C	6
May	24.4 °C	13.6 °C	18.8 °C	28.4 °C	9.3 °C	12
June	25.2 °C	14.0 °C	19.4 °C	29.0 °C	11.4 °C	17
July	22.3 °C	13.9 °C	17.6 °C	27.7 °C	11.4 °C	2
August	22.0 °C	14.1 °C	17.5 °C	25.8 °C	11.5 °C	0
September	23.3 °C	13.2 °C	17.9 °C	26.8 °C	9.5 °C	1
October	21.8 °C	11.8 °C	16.3 °C	24.8 °C	8.6 °C	0
November	20.8 °C	10.7 °C	15.2 °C	23.9 °C	6.6 °C	0
December	20.1 °C	9.9 °C	14.4 °C	23.8 °C	4.7 °C	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	46 mm	12	11 h/day	54 %	71 %	9.3 km/h
February	29 mm	8	12 h/day	49 %	67 %	9.9 km/h
March	46 mm	11	12 h/day	43 %	63 %	10 km/h
April	61 mm	15	12 h/day	39 %	65 %	11 km/h
May	44 mm	10	13 h/day	33 %	56 %	13 km/h
June	35 mm	8	13 h/day	35 %	51 %	15 km/h
July	174 mm	26	13 h/day	61 %	74 %	14 km/h
August	196 mm	26	13 h/day	67 %	77 %	13 km/h
September	34 mm	6	12 h/day	32 %	58 %	16 km/h
October	28 mm	6	12 h/day	31 %	65 %	14 km/h
November	33 mm	8	11 h/day	40 %	74 %	10 km/h
December	36 mm	10	11 h/day	52 %	76 %	9.5 km/h

How Asmara 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
Asmara	25 °C	9.5 °C	763 mm	43
Mek'ele · Ethiopia	27 °C	10 °C	832 mm	113
Kassala · Sudan	40 °C	17 °C	170 mm	365
Gonder · Ethiopia	27 °C	11 °C	1,916 mm	123
Al Qadarif · Sudan	41 °C	19 °C	406 mm	365

Where Asmara ranks

Ranking	Position	Value
Places with the best weather in Africa in September	2nd of 50	97/100
Places with the best weather in Africa in October	4th of 50	96/100
Places with the best weather in the world in September	7th of 50	97/100
Places with the best weather in Africa year-round	12th of 50	87/100
The coolest places in Africa in October	19th of 50	22 °C
Places with the best weather in Africa in February	32nd of 50	91/100

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

QuestionsCommon questions about Asmara’s climate

When is the best time to visit Asmara?

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

How hot does Asmara get?

In June, the warmest month, daily highs average 25 °C. The highest value in the 1991–2020 record is 29 °C.

How cold does it get in winter?

Nights average 9.5 °C in January, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Asmara?

August, averaging 196 mm over 26 days with rain. The driest month is October with 28 mm. The year as a whole averages 763 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 Asmara 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: 15.338°, 38.932° (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.