Ashaiman climate

Name: Ashaiman
Address: GH

Ashaiman is warmest in March, with average highs of 32 °C, and coldest in August, when nights average 23 °C. June is the wettest month (142 mm) and January the driest (17 mm). Figures are 1991–2020 climate normals.

Across a full year Ashaiman averages 637 mm of rain and 364 days above 25 °C.

Ghana · population 190,972 · 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 March 32 °C
Coldest month August 23 °C
Driest month January 17 mm
Wettest month June 142 mm
Least cloud December 40 % cloud
Hottest on record March 36 °C
Coldest on record January 20 °C
Warmest sea May 29 °C

What to expectAshaiman through the year

Ashaiman has a clear annual cycle: average daily highs run from 27 °C in August to 32 °C in March, a swing of 3.9 °C in mean temperature across the year.

Counted across a normal year, 364 days a year reach 25 °C, 188 of them reach 30 °C. The warmest reading in the 1991–2020 record is 36 °C, in March.

Rain is strongly seasonal. June averages 142 mm against 17 mm in January — 8.5 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Ashaiman is warmest in May at 29 °C and coldest in August at 23 °C. Sea temperature lags the air by a month or two, which is why late summer swims warmer than early summer at the same air temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	31.7 °C	17 mm	47 %
February	32.1 °C	23 mm	55 %
March	32.1 °C	35 mm	64 %
April	31.7 °C	49 mm	69 %
May	30.3 °C	95 mm	75 %
June	28.1 °C	142 mm	78 %
July	27.2 °C	55 mm	78 %
August	27.1 °C	36 mm	79 %
September	28.0 °C	59 mm	75 %
October	29.1 °C	70 mm	63 %
November	30.4 °C	36 mm	48 %
December	31.2 °C	22 mm	40 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	31.7 °C	24.8 °C	27.6 °C	35.5 °C	20.3 °C	31	29
February	32.1 °C	25.6 °C	28.1 °C	35.7 °C	21.8 °C	28	27
March	32.1 °C	26.0 °C	28.4 °C	35.8 °C	22.2 °C	31	30
April	31.7 °C	25.9 °C	28.2 °C	35.5 °C	23.8 °C	30	28
May	30.3 °C	25.3 °C	27.4 °C	34.1 °C	23.1 °C	31	18
June	28.1 °C	24.2 °C	25.8 °C	32.0 °C	22.3 °C	30	2
July	27.2 °C	23.4 °C	24.9 °C	30.4 °C	21.3 °C	30	0
August	27.1 °C	22.9 °C	24.5 °C	31.3 °C	21.0 °C	31	0
September	28.0 °C	23.4 °C	25.2 °C	31.9 °C	22.1 °C	30	1
October	29.1 °C	24.1 °C	26.1 °C	33.5 °C	22.1 °C	31	6
November	30.4 °C	24.8 °C	27.2 °C	33.5 °C	22.9 °C	30	19
December	31.2 °C	25.0 °C	27.6 °C	34.2 °C	20.7 °C	31	28

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	17 mm	4	12 h/day	47 %	75 %	15 km/h	27.1 °C
February	23 mm	6	12 h/day	55 %	77 %	17 km/h	27.6 °C
March	35 mm	8	12 h/day	64 %	77 %	17 km/h	28.1 °C
April	49 mm	11	12 h/day	69 %	78 %	17 km/h	28.3 °C
May	95 mm	16	12 h/day	75 %	81 %	16 km/h	28.5 °C
June	142 mm	19	12 h/day	78 %	84 %	16 km/h	26.8 °C
July	55 mm	10	12 h/day	78 %	84 %	17 km/h	24.4 °C
August	36 mm	8	12 h/day	79 %	84 %	18 km/h	23.2 °C
September	59 mm	12	12 h/day	75 %	84 %	16 km/h	24.7 °C
October	70 mm	13	12 h/day	63 %	83 %	15 km/h	26.7 °C
November	36 mm	10	12 h/day	48 %	80 %	13 km/h	28.1 °C
December	22 mm	5	12 h/day	40 %	77 %	14 km/h	27.8 °C

How Ashaiman 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
Ashaiman	32 °C	23 °C	637 mm	364
Accra · Ghana	31 °C	23 °C	852 mm	363
Atsiaman · Ghana	32 °C	23 °C	922 mm	363
Koforidua · Ghana	33 °C	22 °C	1,341 mm	362
Lomé · Togo	31 °C	23 °C	1,011 mm	363
Cape Coast · Ghana	31 °C	23 °C	1,215 mm	361

Where Ashaiman ranks

Ranking	Position	Value
Best beach destinations in Africa in January	18th of 50	88/100
Best beach destinations in Africa in December	22nd of 50	86/100
Warmest sea temperatures in Africa in May	22nd of 50	29 °C
Best beach destinations in Africa in February	24th of 50	83/100
Warmest sea temperatures in Africa in November	25th of 50	28 °C
Best beach destinations in Africa in March	28th of 50	77/100

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

QuestionsCommon questions about Ashaiman’s climate

When is the best time to visit Ashaiman?

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

How hot does Ashaiman get?

In March, the warmest month, daily highs average 32 °C. About 188 days a year pass 30 °C. The highest value in the 1991–2020 record is 36 °C.

How cold does it get in winter?

Nights average 23 °C in August, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Ashaiman?

June, averaging 142 mm over 19 days with rain. The driest month is January with 17 mm. The year as a whole averages 637 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 Ashaiman 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: 5.700°, -0.035° (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.