Techiman climate — normals and trends
Techiman (Ghana) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.7 °C and it receives 1,221 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 (27.7 °C on average) and the coldest is August (24.1 °C). Rainfall peaks in September.
Techiman averages 0 frost days, 207 hot days (≥ 30 °C) and 198 rainy days per year.
Techiman has warmed by +1.9 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.6 °C (on 21 February 2020) and the coldest 14.9 °C (on 25 December 2002).
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
TechimanBono East
- coords
- 7.59°, -1.94°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.7°C
Average daily high
30.5°C
Average daily low
22.1°C
Annual rainfall
1,221mm
Sunshine / day
9.7h
Mean relative humidity
75%
Average peak wind
12.4km/h
Seasonal range
3.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
207 d/yr
Rainy days (≥ 1 mm)
198 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.6 °C
Average feels-like low
24.7 °C
Average peak gust
28.9 km/h
Tropical nights (≥ 20 °C)
346 d/yr
Solar radiation
18.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.79 · 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
39.6 °C
21 February 2020
Coldest day
14.9 °C
25 December 2002
Wettest day
141 mm
26 September 2018
Windiest day
24.3 km/h
29 June 1988
Strongest gust
51.5 km/h
29 June 1988
Hottest feels-like
43.8 °C
16 March 2024
Coldest feels-like
10.8 °C
9 January 1957
Sunniest day
12.0 h
5 August 2020
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 | 35.5 °C | +2.8 °C | 0 mm | -21 mm |
| Feb | 36.2 °C | +2.5 °C | 25 mm | -29 mm |
| Mar | 34.3 °C | +1.4 °C | 76 mm | -47 mm |
| Apr | 33.4 °C | +1.6 °C | 78 mm | -62 mm |
| May | 32.1 °C | +1.3 °C | 134 mm | +4 mm |
| Jun | 30.7 °C | +1.6 °C | 120 mm | -1 mm |
| Jul | 28.3 °C | +0.6 °C | 54 mm | -54 mm |
| Aug | 27.7 °C | +0.2 °C | 41 mm | -59 mm |
| Sep | 29.5 °C | +1.2 °C | 138 mm | -27 mm |
| Oct | 30.6 °C | +1.2 °C | 169 mm | +13 mm |
| Nov | 31.6 °C | +1.0 °C | 53 mm | -20 mm |
| Dec | 31.8 °C | +0.4 °C | 43 mm | +14 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 Techiman?
Techiman has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.7 °C and it receives 1,221 mm of precipitation per year.
What is the hottest day ever recorded in Techiman?
The hottest day measured in Techiman between 1940 and 2025 was 21 February 2020, reaching 39.6 °C.
What is the coldest day in Techiman?
The coldest day measured in Techiman between 1940 and 2025 was 25 December 2002, at 14.9 °C.
Does it snow in Techiman?
Almost never: Techiman sees virtually no snow, with about 0 frost days per year.
Has the climate of Techiman warmed?
Yes: Techiman warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Techiman?
The wettest day measured in Techiman between 1940 and 2025 was 26 September 2018, with 141 mm of rain in 24 hours.
What was the windiest day in Techiman?
The windiest day measured in Techiman between 1940 and 2025 was 29 June 1988, with winds reaching 24.3 km/h.
What is the warmest month in Techiman?
The warmest month in Techiman is February (27.7 °C on average); the coldest is August (24.1 °C).
How much does it rain in Techiman?
Techiman receives on average 1,221 mm of precipitation per year, spread over about 198 rainy days.
Is it sunny in Techiman?
Techiman gets on average 9.7 hours of sunshine per day, roughly 3,540 hours per year over 1940-2025.
Are there tropical nights in Techiman?
Yes: Techiman has on average 346 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Techiman?
In Techiman, between 1940 and 2025, the highest apparent temperature reached 43.8 °C on 16 March 2024, and the lowest was 10.8 °C on 9 January 1957.
Compare Techiman with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Techiman