Foso climate — normals and trends
Foso (Ghana) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 25.3 °C and it receives 1,665 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 February (26.7 °C on average) and the coldest is August (24.0 °C). Rainfall peaks in June.
Foso averages 0 frost days, 188 hot days (≥ 30 °C) and 262 rainy days per year.
Foso has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.
The hottest day of the period reached 37.2 °C (on 14 March 2000) and the coldest 15.7 °C (on 6 January 1992).
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
FosoCentral
- coords
- 5.70°, -1.29°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.3°C
Average daily high
30.0°C
Average daily low
22.4°C
Annual rainfall
1,665mm
Sunshine / day
9.1h
Mean relative humidity
85%
Average peak wind
10.4km/h
Seasonal range
2.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
188 d/yr
Rainy days (≥ 1 mm)
262 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.3 °C
Average feels-like low
26.4 °C
Average peak gust
26.7 km/h
Tropical nights (≥ 20 °C)
356 d/yr
Solar radiation
16.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.86 · 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
37.2 °C
14 March 2000
Coldest day
15.7 °C
6 January 1992
Wettest day
125 mm
24 May 2000
Windiest day
19.4 km/h
16 August 1974
Strongest gust
46.1 km/h
23 August 1976
Hottest feels-like
44.2 °C
24 March 1998
Coldest feels-like
14.3 °C
8 January 1957
Sunniest day
12.0 h
15 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 | 33.7 °C | +2.2 °C | 21 mm | -22 mm |
| Feb | 33.2 °C | +0.8 °C | 72 mm | -3 mm |
| Mar | 33.0 °C | +1.0 °C | 113 mm | -27 mm |
| Apr | 32.1 °C | +0.8 °C | 126 mm | -36 mm |
| May | 31.5 °C | +1.2 °C | 200 mm | -16 mm |
| Jun | 30.1 °C | +1.5 °C | 286 mm | +54 mm |
| Jul | 28.3 °C | +0.6 °C | 49 mm | -104 mm |
| Aug | 27.2 °C | -0.5 °C | 82 mm | -20 mm |
| Sep | 29.1 °C | +0.6 °C | 145 mm | -19 mm |
| Oct | 30.5 °C | +1.0 °C | 199 mm | +1 mm |
| Nov | 31.1 °C | +0.8 °C | 101 mm | -22 mm |
| Dec | 30.9 °C | +0.5 °C | 81 mm | +23 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 Foso?
Foso has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 25.3 °C and it receives 1,665 mm of precipitation per year.
What is the hottest day ever recorded in Foso?
The hottest day measured in Foso between 1940 and 2025 was 14 March 2000, reaching 37.2 °C.
What is the coldest day in Foso?
The coldest day measured in Foso between 1940 and 2025 was 6 January 1992, at 15.7 °C.
Does it snow in Foso?
Almost never: Foso sees virtually no snow, with about 0 frost days per year.
Has the climate of Foso warmed?
Yes: Foso warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Foso?
The wettest day measured in Foso between 1940 and 2025 was 24 May 2000, with 125 mm of rain in 24 hours.
What was the windiest day in Foso?
The windiest day measured in Foso between 1940 and 2025 was 16 August 1974, with winds reaching 19.4 km/h.
What is the warmest month in Foso?
The warmest month in Foso is February (26.7 °C on average); the coldest is August (24.0 °C).
How much does it rain in Foso?
Foso receives on average 1,665 mm of precipitation per year, spread over about 262 rainy days.
Is it sunny in Foso?
Foso gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.
Are there tropical nights in Foso?
Yes: Foso has on average 356 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Foso?
In Foso, between 1940 and 2025, the highest apparent temperature reached 44.2 °C on 24 March 1998, and the lowest was 14.3 °C on 8 January 1957.
Compare Foso with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Foso