Mankessim climate — normals and trends
Mankessim (Ghana) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.0 °C and it receives 1,071 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is March (27.4 °C on average) and the coldest is August (24.0 °C). Rainfall peaks in June.
Mankessim averages 0 frost days, 43 hot days (≥ 30 °C) and 230 rainy days per year.
Mankessim has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.
The hottest day of the period reached 33.1 °C (on 14 April 2024) and the coldest 20.7 °C (on 18 August 1943).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
MankessimCentral
- coords
- 5.27°, -1.02°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.0°C
Average daily high
28.0°C
Average daily low
24.5°C
Annual rainfall
1,071mm
Sunshine / day
10.4h
Mean relative humidity
86%
Average peak wind
15.7km/h
Seasonal range
3.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
43 d/yr
Rainy days (≥ 1 mm)
230 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.2 °C
Average feels-like low
28.6 °C
Average peak gust
29.2 km/h
Tropical nights (≥ 20 °C)
365 d/yr
Solar radiation
18.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.82 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
33.1 °C
14 April 2024
Coldest day
20.7 °C
18 August 1943
Wettest day
146 mm
18 May 2023
Windiest day
27.7 km/h
16 August 1974
Strongest gust
47.5 km/h
8 July 2019
Hottest feels-like
40.7 °C
26 March 2024
Coldest feels-like
20.0 °C
9 January 1993
Sunniest day
12.0 h
20 April 1940
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 30.2 °C | +1.3 °C | 33 mm | -2 mm |
| Feb | 30.3 °C | +0.8 °C | 39 mm | -6 mm |
| Mar | 30.7 °C | +1.0 °C | 46 mm | -31 mm |
| Apr | 30.4 °C | +0.9 °C | 73 mm | -26 mm |
| May | 30.0 °C | +1.4 °C | 163 mm | -11 mm |
| Jun | 28.5 °C | +1.4 °C | 252 mm | +53 mm |
| Jul | 26.3 °C | +0.3 °C | 45 mm | -45 mm |
| Aug | 25.3 °C | -0.3 °C | 93 mm | +44 mm |
| Sep | 27.1 °C | +0.7 °C | 80 mm | +5 mm |
| Oct | 28.4 °C | +0.8 °C | 114 mm | +16 mm |
| Nov | 29.2 °C | +0.7 °C | 48 mm | -32 mm |
| Dec | 29.3 °C | +0.6 °C | 77 mm | +26 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Mankessim?
Mankessim has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.0 °C and it receives 1,071 mm of precipitation per year.
What is the hottest day ever recorded in Mankessim?
The hottest day measured in Mankessim between 1940 and 2025 was 14 April 2024, reaching 33.1 °C.
What is the coldest day in Mankessim?
The coldest day measured in Mankessim between 1940 and 2025 was 18 August 1943, at 20.7 °C.
Does it snow in Mankessim?
Almost never: Mankessim sees virtually no snow, with about 0 frost days per year.
Has the climate of Mankessim warmed?
Yes: Mankessim warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Mankessim?
The wettest day measured in Mankessim between 1940 and 2025 was 18 May 2023, with 146 mm of rain in 24 hours.
What was the windiest day in Mankessim?
The windiest day measured in Mankessim between 1940 and 2025 was 16 August 1974, with winds reaching 27.7 km/h.
What is the warmest month in Mankessim?
The warmest month in Mankessim is March (27.4 °C on average); the coldest is August (24.0 °C).
How much does it rain in Mankessim?
Mankessim receives on average 1,071 mm of precipitation per year, spread over about 230 rainy days.
Is it sunny in Mankessim?
Mankessim gets on average 10.4 hours of sunshine per day, roughly 3,796 hours per year over 1940-2025.
Are there tropical nights in Mankessim?
Yes: Mankessim has on average 365 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Mankessim?
In Mankessim, between 1940 and 2025, the highest apparent temperature reached 40.7 °C on 26 March 2024, and the lowest was 20.0 °C on 9 January 1993.
Compare Mankessim with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Mankessim