Nikki climate — normals and trends
Nikki (Benin) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.4 °C and it receives 1,056 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 (29.4 °C on average) and the coldest is August (24.2 °C). Rainfall peaks in August.
Nikki averages 0 frost days, 286 hot days (≥ 30 °C) and 138 rainy days per year.
Nikki has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.
The hottest day of the period reached 40.5 °C (on 6 April 1980) and the coldest 12.2 °C (on 9 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.
Climate normals · ERA5
NikkiBorgou Department
- coords
- 9.94°, 3.21°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.4°C
Average daily high
32.5°C
Average daily low
21.4°C
Annual rainfall
1,056mm
Sunshine / day
10.5h
Mean relative humidity
61%
Average peak wind
12.3km/h
Seasonal range
5.2°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
286 d/yr
Rainy days (≥ 1 mm)
138 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.6 °C
Average feels-like low
22.7 °C
Average peak gust
29.5 km/h
Tropical nights (≥ 20 °C)
284 d/yr
Solar radiation
20.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.77 · 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
40.5 °C
6 April 1980
Coldest day
12.2 °C
9 January 1957
Wettest day
153 mm
10 August 2015
Windiest day
23.8 km/h
19 May 1993
Strongest gust
56.5 km/h
8 October 2016
Hottest feels-like
46.3 °C
19 April 2024
Coldest feels-like
7.8 °C
9 January 1957
Sunniest day
12.2 h
27 May 1943
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 | 33.6 °C | +1.0 °C | 0 mm | -1 mm |
| Feb | 35.2 °C | +0.5 °C | 0 mm | -3 mm |
| Mar | 37.7 °C | +1.3 °C | 1 mm | -15 mm |
| Apr | 37.4 °C | +1.6 °C | 4 mm | -47 mm |
| May | 35.0 °C | +1.3 °C | 41 mm | -61 mm |
| Jun | 32.5 °C | +1.3 °C | 61 mm | -72 mm |
| Jul | 29.6 °C | +0.5 °C | 177 mm | -36 mm |
| Aug | 29.2 °C | +0.7 °C | 327 mm | +64 mm |
| Sep | 30.6 °C | +0.9 °C | 161 mm | -46 mm |
| Oct | 33.3 °C | +1.4 °C | 46 mm | -20 mm |
| Nov | 34.9 °C | +1.4 °C | 0 mm | -3 mm |
| Dec | 34.6 °C | +1.9 °C | 0 mm | -1 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 Nikki?
Nikki has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.4 °C and it receives 1,056 mm of precipitation per year.
What is the hottest day ever recorded in Nikki?
The hottest day measured in Nikki between 1940 and 2025 was 6 April 1980, reaching 40.5 °C.
What is the coldest day in Nikki?
The coldest day measured in Nikki between 1940 and 2025 was 9 January 1957, at 12.2 °C.
Does it snow in Nikki?
Almost never: Nikki sees virtually no snow, with about 0 frost days per year.
Has the climate of Nikki warmed?
Yes: Nikki warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Nikki?
The wettest day measured in Nikki between 1940 and 2025 was 10 August 2015, with 153 mm of rain in 24 hours.
What was the windiest day in Nikki?
The windiest day measured in Nikki between 1940 and 2025 was 19 May 1993, with winds reaching 23.8 km/h.
What is the warmest month in Nikki?
The warmest month in Nikki is March (29.4 °C on average); the coldest is August (24.2 °C).
How much does it rain in Nikki?
Nikki receives on average 1,056 mm of precipitation per year, spread over about 138 rainy days.
Is it sunny in Nikki?
Nikki gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.
Are there tropical nights in Nikki?
Yes: Nikki has on average 284 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Nikki?
In Nikki, between 1940 and 2025, the highest apparent temperature reached 46.3 °C on 19 April 2024, and the lowest was 7.8 °C on 9 January 1957.
Compare Nikki with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Nikki