Nansio climate — normals and trends
Nansio (Tanzania) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 23.1 °C and it receives 2,391 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 (23.7 °C on average) and the coldest is July (22.7 °C). Rainfall peaks in November.
Nansio averages 0 frost days, 0 hot days (≥ 30 °C) and 236 rainy days per year.
Nansio has warmed by +1.3 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.
The hottest day of the period reached 29.3 °C (on 6 March 2016) and the coldest 18.0 °C (on 22 July 1953).
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
NansioMara
- coords
- -2.13°, 33.05°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
23.1°C
Average daily high
24.8°C
Average daily low
21.3°C
Annual rainfall
2,391mm
Sunshine / day
10.7h
Mean relative humidity
71%
Average peak wind
20.7km/h
Seasonal range
1.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
236 d/yr
Annual snowfall
0.0 cm
Average feels-like high
26.8 °C
Average feels-like low
21.5 °C
Average peak gust
30.7 km/h
Tropical nights (≥ 20 °C)
333 d/yr
Solar radiation
21.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °C
since 1940
+0.2 °C per decade · r² = 0.65 · 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
29.3 °C
6 March 2016
Coldest day
18.0 °C
22 July 1953
Wettest day
193 mm
17 April 1959
Windiest day
42.3 km/h
29 July 1994
Strongest gust
58.3 km/h
29 August 2023
Hottest feels-like
34.5 °C
25 February 2005
Coldest feels-like
13.4 °C
12 July 1944
Sunniest day
12.1 h
17 November 1942
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 | 25.9 °C | +1.0 °C | 86 mm | -138 mm |
| Feb | 27.2 °C | +1.7 °C | 25 mm | -177 mm |
| Mar | 26.3 °C | +0.9 °C | 230 mm | -63 mm |
| Apr | 25.6 °C | +0.8 °C | 284 mm | -30 mm |
| May | 25.7 °C | +0.6 °C | 121 mm | -39 mm |
| Jun | 25.0 °C | 0.0 °C | 15 mm | -29 mm |
| Jul | 24.8 °C | +0.4 °C | 10 mm | -15 mm |
| Aug | 24.5 °C | 0.0 °C | 77 mm | +11 mm |
| Sep | 25.4 °C | +0.5 °C | 72 mm | -75 mm |
| Oct | 25.2 °C | +0.3 °C | 259 mm | +6 mm |
| Nov | 25.8 °C | +1.5 °C | 141 mm | -207 mm |
| Dec | 25.5 °C | +1.1 °C | 240 mm | -76 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 Nansio?
Nansio has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 23.1 °C and it receives 2,391 mm of precipitation per year.
What is the hottest day ever recorded in Nansio?
The hottest day measured in Nansio between 1940 and 2025 was 6 March 2016, reaching 29.3 °C.
What is the coldest day in Nansio?
The coldest day measured in Nansio between 1940 and 2025 was 22 July 1953, at 18.0 °C.
Does it snow in Nansio?
Almost never: Nansio sees virtually no snow, with about 0 frost days per year.
Has the climate of Nansio warmed?
Yes: Nansio warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Nansio?
The wettest day measured in Nansio between 1940 and 2025 was 17 April 1959, with 193 mm of rain in 24 hours.
What was the windiest day in Nansio?
The windiest day measured in Nansio between 1940 and 2025 was 29 July 1994, with winds reaching 42.3 km/h.
What is the warmest month in Nansio?
The warmest month in Nansio is February (23.7 °C on average); the coldest is July (22.7 °C).
How much does it rain in Nansio?
Nansio receives on average 2,391 mm of precipitation per year, spread over about 236 rainy days.
Is it sunny in Nansio?
Nansio gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.
Are there tropical nights in Nansio?
Yes: Nansio has on average 333 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Nansio?
In Nansio, between 1940 and 2025, the highest apparent temperature reached 34.5 °C on 25 February 2005, and the lowest was 13.4 °C on 12 July 1944.
Compare Nansio with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Nansio