Keta climate — normals and trends
Keta (Ghana) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.6 °C and it receives 820 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 (28.0 °C on average) and the coldest is August (24.2 °C). Rainfall peaks in June.
Keta averages 0 frost days, 64 hot days (≥ 30 °C) and 163 rainy days per year.
Keta has warmed by +1.3 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.
The hottest day of the period reached 32.6 °C (on 7 March 1973) and the coldest 21.0 °C (on 10 August 1956).
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
KetaVolta
- coords
- 5.92°, 0.99°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.6°C
Average daily high
28.3°C
Average daily low
25.3°C
Annual rainfall
820mm
Sunshine / day
10.6h
Mean relative humidity
83%
Average peak wind
19.3km/h
Seasonal range
3.8°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
64 d/yr
Rainy days (≥ 1 mm)
163 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.0 °C
Average feels-like low
28.8 °C
Average peak gust
32.4 km/h
Tropical nights (≥ 20 °C)
365 d/yr
Solar radiation
18.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °C
since 1940
+0.2 °C per decade · r² = 0.76 · 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
32.6 °C
7 March 1973
Coldest day
21.0 °C
10 August 1956
Wettest day
154 mm
11 June 2020
Windiest day
33.1 km/h
19 June 2018
Strongest gust
51.5 km/h
30 April 1974
Hottest feels-like
40.1 °C
7 May 2024
Coldest feels-like
17.3 °C
8 January 1957
Sunniest day
12.0 h
21 March 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 | 30.0 °C | +0.8 °C | 10 mm | -8 mm |
| Feb | 30.2 °C | +0.4 °C | 12 mm | -12 mm |
| Mar | 30.7 °C | +0.7 °C | 27 mm | -18 mm |
| Apr | 30.3 °C | +0.4 °C | 32 mm | -37 mm |
| May | 29.8 °C | +0.8 °C | 110 mm | -31 mm |
| Jun | 28.6 °C | +1.2 °C | 176 mm | -6 mm |
| Jul | 26.2 °C | +0.1 °C | 27 mm | -50 mm |
| Aug | 25.8 °C | +0.1 °C | 28 mm | -10 mm |
| Sep | 27.2 °C | +0.5 °C | 70 mm | +12 mm |
| Oct | 28.3 °C | +0.4 °C | 82 mm | +1 mm |
| Nov | 29.4 °C | +0.5 °C | 35 mm | -22 mm |
| Dec | 29.7 °C | +0.5 °C | 25 mm | -5 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 Keta?
Keta has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.6 °C and it receives 820 mm of precipitation per year.
What is the hottest day ever recorded in Keta?
The hottest day measured in Keta between 1940 and 2025 was 7 March 1973, reaching 32.6 °C.
What is the coldest day in Keta?
The coldest day measured in Keta between 1940 and 2025 was 10 August 1956, at 21.0 °C.
Does it snow in Keta?
Almost never: Keta sees virtually no snow, with about 0 frost days per year.
Has the climate of Keta warmed?
Yes: Keta warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Keta?
The wettest day measured in Keta between 1940 and 2025 was 11 June 2020, with 154 mm of rain in 24 hours.
What was the windiest day in Keta?
The windiest day measured in Keta between 1940 and 2025 was 19 June 2018, with winds reaching 33.1 km/h.
What is the warmest month in Keta?
The warmest month in Keta is March (28.0 °C on average); the coldest is August (24.2 °C).
How much does it rain in Keta?
Keta receives on average 820 mm of precipitation per year, spread over about 163 rainy days.
Is it sunny in Keta?
Keta gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.
Are there tropical nights in Keta?
Yes: Keta has on average 365 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Keta?
In Keta, between 1940 and 2025, the highest apparent temperature reached 40.1 °C on 7 May 2024, and the lowest was 17.3 °C on 8 January 1957.
Compare Keta with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Keta