Bawku climate — normals and trends
Bawku has a hot semi-arid climate, averaging 28.4 °C annually with 655 mm of rain per year.
Climate normals · ERA5
BawkuUpper East
- coords
- 11.06°, -0.24°
- period
- 1940–2025 · 86 yrs
The normals for this period
The average of every indicator across the whole window: temperature, water, sky, wind and notable days.
Mean daily temperature
28.4°C
Average daily high
34.0°C
Average daily low
23.3°C
Annual rainfall
655mm
Sunshine / day
10.7h
Mean relative humidity
52%
Average peak wind
14.5km/h
Seasonal range
6.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
310 d/yr
Rainy days (≥ 1 mm)
103 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.5 °C
Average feels-like low
24.3 °C
Average peak gust
31.7 km/h
Tropical nights (≥ 20 °C)
322 d/yr
Solar radiation
20.9 MJ/m²
Has the climate changed?
What the yearly averages say about warming here, and whether the slope is statistically solid.
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.63 · 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).
Climate month by month
How an average year unfolds: when it rains, when it turns hot, when the sun is out.
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
The most extreme days ever measured here, then the year-by-year detail.
Hottest day
43.2 °C
9 April 1983
Coldest day
13.8 °C
14 January 1957
Wettest day
125 mm
31 August 1992
Windiest day
32.8 km/h
10 April 1983
Strongest gust
60.8 km/h
4 September 2002
Hottest feels-like
47.1 °C
6 April 1969
Coldest feels-like
9.4 °C
9 January 1957
Sunniest day
12.0 h
19 July 2025
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and compare it with the normal: warmer, drier, more extreme?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 35.4 °C | +1.3 °C | 0 mm | -0 mm |
| Feb | 37.3 °C | +0.9 °C | 0 mm | -2 mm |
| Mar | 39.6 °C | +1.4 °C | 1 mm | -9 mm |
| Apr | 39.2 °C | +1.3 °C | 9 mm | -21 mm |
| May | 36.3 °C | +0.2 °C | 18 mm | -35 mm |
| Jun | 34.4 °C | +1.0 °C | 43 mm | -20 mm |
| Jul | 30.4 °C | -0.1 °C | 130 mm | +4 mm |
| Aug | 29.4 °C | +0.2 °C | 234 mm | +42 mm |
| Sep | 30.3 °C | +0.2 °C | 129 mm | -7 mm |
| Oct | 34.3 °C | +1.2 °C | 13 mm | -27 mm |
| Nov | 36.4 °C | +1.1 °C | 0 mm | -3 mm |
| Dec | 35.9 °C | +1.8 °C | 0 mm | -0 mm |
The year's extremes
What was the weather like that day?
The weather actually measured on a given date, anywhere in the covered window.
Climate at a glance
What these normals say about the place, in a few sentences, and the notions needed to read them.
Bawku (Ghana) has a hot semi-arid climate (BSh) under the Köppen-Geiger classification. Its mean annual temperature is 28.4 °C and it receives 655 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 April (32.3 °C on average) and the coldest is August (25.6 °C). Rainfall peaks in August.
Bawku averages 0 frost days, 310 hot days (≥ 30 °C) and 103 rainy days per year.
Bawku 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 43.2 °C (on 9 April 1983) and the coldest 13.8 °C (on 14 January 1957).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Compare Bawku with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Bawku
Other cities — Ghana
Frequently asked questions
What is the climate of Bawku?
Bawku has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 28.4 °C and it receives 655 mm of precipitation per year.
What is the hottest day ever recorded in Bawku?
The hottest day measured in Bawku between 1940 and 2025 was 9 April 1983, reaching 43.2 °C.
What is the coldest day in Bawku?
The coldest day measured in Bawku between 1940 and 2025 was 14 January 1957, at 13.8 °C.
Does it snow in Bawku?
Almost never: Bawku sees virtually no snow, with about 0 frost days per year.
Has the climate of Bawku warmed?
Yes: Bawku warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Bawku?
The wettest day measured in Bawku between 1940 and 2025 was 31 August 1992, with 125 mm of rain in 24 hours.
What was the windiest day in Bawku?
The windiest day measured in Bawku between 1940 and 2025 was 10 April 1983, with winds reaching 32.8 km/h.
What is the warmest month in Bawku?
The warmest month in Bawku is April (32.3 °C on average); the coldest is August (25.6 °C).
How much does it rain in Bawku?
Bawku receives on average 655 mm of precipitation per year, spread over about 103 rainy days.
Is it sunny in Bawku?
Bawku gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.
Are there tropical nights in Bawku?
Yes: Bawku has on average 322 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Bawku?
In Bawku, between 1940 and 2025, the highest apparent temperature reached 47.1 °C on 6 April 1969, and the lowest was 9.4 °C on 9 January 1957.
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