Ahwiaa climate — normals and trends
Ahwiaa (Ghana) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.8 °C and it receives 1,006 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 (27.8 °C on average) and the coldest is August (24.1 °C). Rainfall peaks in September.
Ahwiaa averages 0 frost days, 200 hot days (≥ 30 °C) and 189 rainy days per year.
Ahwiaa has warmed by +2.1 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.1 °C (on 6 March 2007) and the coldest 14.8 °C (on 19 January 1968).
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
AhwiaaAshanti
- coords
- 6.90°, -1.65°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.8°C
Average daily high
30.4°C
Average daily low
22.3°C
Annual rainfall
1,006mm
Sunshine / day
9.4h
Mean relative humidity
77%
Average peak wind
12.0km/h
Seasonal range
3.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
200 d/yr
Rainy days (≥ 1 mm)
189 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.6 °C
Average feels-like low
25.4 °C
Average peak gust
27.7 km/h
Tropical nights (≥ 20 °C)
355 d/yr
Solar radiation
17.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.2 °C per decade · r² = 0.78 · 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
39.1 °C
6 March 2007
Coldest day
14.8 °C
19 January 1968
Wettest day
157 mm
10 July 2009
Windiest day
24.3 km/h
29 June 1988
Strongest gust
51.8 km/h
3 March 1983
Hottest feels-like
44.1 °C
22 February 2016
Coldest feels-like
11.6 °C
9 January 1957
Sunniest day
12.0 h
8 July 1961
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 | 35.3 °C | +2.7 °C | 1 mm | -19 mm |
| Feb | 35.9 °C | +2.3 °C | 26 mm | -23 mm |
| Mar | 34.3 °C | +1.5 °C | 67 mm | -31 mm |
| Apr | 33.4 °C | +1.5 °C | 70 mm | -39 mm |
| May | 32.3 °C | +1.4 °C | 114 mm | +5 mm |
| Jun | 30.7 °C | +1.6 °C | 108 mm | -4 mm |
| Jul | 28.4 °C | +0.6 °C | 39 mm | -55 mm |
| Aug | 27.6 °C | 0.0 °C | 37 mm | -43 mm |
| Sep | 29.5 °C | +1.1 °C | 106 mm | -22 mm |
| Oct | 30.3 °C | +1.0 °C | 134 mm | +13 mm |
| Nov | 31.3 °C | +1.1 °C | 28 mm | -34 mm |
| Dec | 31.4 °C | +0.4 °C | 34 mm | +9 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 Ahwiaa?
Ahwiaa has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.8 °C and it receives 1,006 mm of precipitation per year.
What is the hottest day ever recorded in Ahwiaa?
The hottest day measured in Ahwiaa between 1940 and 2025 was 6 March 2007, reaching 39.1 °C.
What is the coldest day in Ahwiaa?
The coldest day measured in Ahwiaa between 1940 and 2025 was 19 January 1968, at 14.8 °C.
Does it snow in Ahwiaa?
Almost never: Ahwiaa sees virtually no snow, with about 0 frost days per year.
Has the climate of Ahwiaa warmed?
Yes: Ahwiaa warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ahwiaa?
The wettest day measured in Ahwiaa between 1940 and 2025 was 10 July 2009, with 157 mm of rain in 24 hours.
What was the windiest day in Ahwiaa?
The windiest day measured in Ahwiaa between 1940 and 2025 was 29 June 1988, with winds reaching 24.3 km/h.
What is the warmest month in Ahwiaa?
The warmest month in Ahwiaa is February (27.8 °C on average); the coldest is August (24.1 °C).
How much does it rain in Ahwiaa?
Ahwiaa receives on average 1,006 mm of precipitation per year, spread over about 189 rainy days.
Is it sunny in Ahwiaa?
Ahwiaa gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.
Are there tropical nights in Ahwiaa?
Yes: Ahwiaa has on average 355 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ahwiaa?
In Ahwiaa, between 1940 and 2025, the highest apparent temperature reached 44.1 °C on 22 February 2016, and the lowest was 11.6 °C on 9 January 1957.
Compare Ahwiaa with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ahwiaa