Nioki climate — normals and trends
Nioki (Democratic Republic of Congo) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.5 °C and it receives 1,611 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 (26.0 °C on average) and the coldest is November (24.9 °C). Rainfall peaks in October.
Nioki averages 0 frost days, 185 hot days (≥ 30 °C) and 235 rainy days per year.
Nioki has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.
The hottest day of the period reached 37.8 °C (on 11 February 2024) and the coldest 16.0 °C (on 18 July 1950).
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
NiokiMai-Ndombe
- coords
- -2.72°, 17.69°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.5°C
Average daily high
29.9°C
Average daily low
22.4°C
Annual rainfall
1,611mm
Sunshine / day
9.6h
Mean relative humidity
85%
Average peak wind
8.3km/h
Seasonal range
1.1°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
185 d/yr
Rainy days (≥ 1 mm)
235 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.4 °C
Average feels-like low
26.4 °C
Average peak gust
23.1 km/h
Tropical nights (≥ 20 °C)
364 d/yr
Solar radiation
18.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.64 · 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
37.8 °C
11 February 2024
Coldest day
16.0 °C
18 July 1950
Wettest day
141 mm
7 October 2012
Windiest day
20.4 km/h
22 August 1950
Strongest gust
46.1 km/h
15 July 1950
Hottest feels-like
43.8 °C
18 March 2024
Coldest feels-like
14.3 °C
18 July 1950
Sunniest day
12.0 h
14 January 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 | 31.4 °C | +1.5 °C | 110 mm | -41 mm |
| Feb | 31.3 °C | +0.8 °C | 70 mm | -75 mm |
| Mar | 31.6 °C | +1.1 °C | 166 mm | -4 mm |
| Apr | 31.4 °C | +1.2 °C | 159 mm | -4 mm |
| May | 30.5 °C | +0.5 °C | 148 mm | +29 mm |
| Jun | 30.7 °C | +0.8 °C | 45 mm | +8 mm |
| Jul | 30.6 °C | +0.4 °C | 23 mm | -2 mm |
| Aug | 32.6 °C | +2.1 °C | 13 mm | -49 mm |
| Sep | 32.5 °C | +2.6 °C | 103 mm | -32 mm |
| Oct | 30.3 °C | +1.0 °C | 254 mm | +43 mm |
| Nov | 30.8 °C | +1.7 °C | 226 mm | +22 mm |
| Dec | 30.8 °C | +1.5 °C | 145 mm | -43 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 Nioki?
Nioki has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.5 °C and it receives 1,611 mm of precipitation per year.
What is the hottest day ever recorded in Nioki?
The hottest day measured in Nioki between 1940 and 2025 was 11 February 2024, reaching 37.8 °C.
What is the coldest day in Nioki?
The coldest day measured in Nioki between 1940 and 2025 was 18 July 1950, at 16.0 °C.
Does it snow in Nioki?
Almost never: Nioki sees virtually no snow, with about 0 frost days per year.
Has the climate of Nioki warmed?
Yes: Nioki warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Nioki?
The wettest day measured in Nioki between 1940 and 2025 was 7 October 2012, with 141 mm of rain in 24 hours.
What was the windiest day in Nioki?
The windiest day measured in Nioki between 1940 and 2025 was 22 August 1950, with winds reaching 20.4 km/h.
What is the warmest month in Nioki?
The warmest month in Nioki is February (26.0 °C on average); the coldest is November (24.9 °C).
How much does it rain in Nioki?
Nioki receives on average 1,611 mm of precipitation per year, spread over about 235 rainy days.
Is it sunny in Nioki?
Nioki gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.
Are there tropical nights in Nioki?
Yes: Nioki has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Nioki?
In Nioki, between 1940 and 2025, the highest apparent temperature reached 43.8 °C on 18 March 2024, and the lowest was 14.3 °C on 18 July 1950.
Compare Nioki with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Nioki