Njombe climate — normals and trends
Njombe (Tanzania) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 16.4 °C and it receives 1,154 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 November (18.1 °C on average) and the coldest is July (13.5 °C). Rainfall peaks in January.
Njombe averages 0 frost days, 0 hot days (≥ 30 °C) and 150 rainy days per year.
Njombe has warmed by +1.4 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.
The hottest day of the period reached 30.2 °C (on 18 October 2017) and the coldest 3.5 °C (on 26 July 1975).
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
NjombeNjombe
- coords
- -9.35°, 34.77°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.4°C
Average daily high
21.6°C
Average daily low
12.4°C
Annual rainfall
1,154mm
Sunshine / day
10.5h
Mean relative humidity
75%
Average peak wind
15.2km/h
Seasonal range
4.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
150 d/yr
Annual snowfall
0.0 cm
Average feels-like high
21.5 °C
Average feels-like low
11.6 °C
Average peak gust
36.6 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
19.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.68 · 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
30.2 °C
18 October 2017
Coldest day
3.5 °C
26 July 1975
Wettest day
119 mm
4 April 2016
Windiest day
29.8 km/h
19 August 1959
Strongest gust
67.7 km/h
5 November 2008
Hottest feels-like
31.6 °C
17 October 2017
Coldest feels-like
0.2 °C
26 July 1975
Sunniest day
12.5 h
6 December 2025
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 | 23.0 °C | +0.7 °C | 297 mm | +24 mm |
| Feb | 24.3 °C | +1.8 °C | 192 mm | -64 mm |
| Mar | 22.4 °C | +0.4 °C | 259 mm | +23 mm |
| Apr | 21.8 °C | +0.7 °C | 75 mm | -25 mm |
| May | 20.8 °C | +0.4 °C | 28 mm | +4 mm |
| Jun | 20.6 °C | +1.1 °C | 3 mm | -1 mm |
| Jul | 19.5 °C | +0.4 °C | 5 mm | +1 mm |
| Aug | 21.5 °C | +1.3 °C | 1 mm | -4 mm |
| Sep | 24.2 °C | +2.2 °C | 2 mm | -4 mm |
| Oct | 24.8 °C | +1.4 °C | 9 mm | -10 mm |
| Nov | 24.6 °C | +1.1 °C | 55 mm | -6 mm |
| Dec | 23.8 °C | +1.1 °C | 123 mm | -46 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 Njombe?
Njombe has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 16.4 °C and it receives 1,154 mm of precipitation per year.
What is the hottest day ever recorded in Njombe?
The hottest day measured in Njombe between 1940 and 2025 was 18 October 2017, reaching 30.2 °C.
What is the coldest day in Njombe?
The coldest day measured in Njombe between 1940 and 2025 was 26 July 1975, at 3.5 °C.
Does it snow in Njombe?
Almost never: Njombe sees virtually no snow, with about 0 frost days per year.
Has the climate of Njombe warmed?
Yes: Njombe warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Njombe?
The wettest day measured in Njombe between 1940 and 2025 was 4 April 2016, with 119 mm of rain in 24 hours.
What was the windiest day in Njombe?
The windiest day measured in Njombe between 1940 and 2025 was 19 August 1959, with winds reaching 29.8 km/h.
What is the warmest month in Njombe?
The warmest month in Njombe is November (18.1 °C on average); the coldest is July (13.5 °C).
How much does it rain in Njombe?
Njombe receives on average 1,154 mm of precipitation per year, spread over about 150 rainy days.
Is it sunny in Njombe?
Njombe gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.
Are there tropical nights in Njombe?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Njombe.
What was the most extreme apparent temperature in Njombe?
In Njombe, between 1940 and 2025, the highest apparent temperature reached 31.6 °C on 17 October 2017, and the lowest was 0.2 °C on 26 July 1975.
Compare Njombe with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Njombe