Chato climate — normals and trends
Chato (Tanzania) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 22.7 °C and it receives 1,038 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 August (23.3 °C on average) and the coldest is November (22.1 °C). Rainfall peaks in November.
Chato averages 0 frost days, 9 hot days (≥ 30 °C) and 183 rainy days per year.
Chato 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 33.0 °C (on 25 September 1997) and the coldest 14.8 °C (on 8 June 1971).
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
ChatoGeita
- coords
- -2.64°, 31.77°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
22.7°C
Average daily high
26.6°C
Average daily low
19.6°C
Annual rainfall
1,038mm
Sunshine / day
10.9h
Mean relative humidity
73%
Average peak wind
12.3km/h
Seasonal range
1.2°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
9 d/yr
Rainy days (≥ 1 mm)
183 d/yr
Annual snowfall
0.0 cm
Average feels-like high
28.9 °C
Average feels-like low
20.8 °C
Average peak gust
26.1 km/h
Tropical nights (≥ 20 °C)
133 d/yr
Solar radiation
19.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.73 · 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
33.0 °C
25 September 1997
Coldest day
14.8 °C
8 June 1971
Wettest day
74 mm
31 March 2009
Windiest day
22.8 km/h
9 March 2007
Strongest gust
49.7 km/h
22 April 1984
Hottest feels-like
37.6 °C
30 March 2012
Coldest feels-like
12.6 °C
27 July 1974
Sunniest day
12.0 h
2 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 | 27.3 °C | +1.3 °C | 35 mm | -50 mm |
| Feb | 29.7 °C | +3.0 °C | 5 mm | -71 mm |
| Mar | 28.5 °C | +1.8 °C | 93 mm | -24 mm |
| Apr | 27.5 °C | +1.3 °C | 146 mm | +1 mm |
| May | 27.0 °C | +0.4 °C | 64 mm | +2 mm |
| Jun | 28.0 °C | +0.7 °C | 4 mm | -6 mm |
| Jul | 28.2 °C | +0.5 °C | 8 mm | +2 mm |
| Aug | 27.0 °C | -0.8 °C | 65 mm | +39 mm |
| Sep | 27.4 °C | +0.4 °C | 65 mm | -3 mm |
| Oct | 25.8 °C | -0.2 °C | 176 mm | +50 mm |
| Nov | 26.2 °C | +1.0 °C | 95 mm | -86 mm |
| Dec | 25.9 °C | +0.5 °C | 69 mm | -66 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 Chato?
Chato has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 22.7 °C and it receives 1,038 mm of precipitation per year.
What is the hottest day ever recorded in Chato?
The hottest day measured in Chato between 1940 and 2025 was 25 September 1997, reaching 33.0 °C.
What is the coldest day in Chato?
The coldest day measured in Chato between 1940 and 2025 was 8 June 1971, at 14.8 °C.
Does it snow in Chato?
Almost never: Chato sees virtually no snow, with about 0 frost days per year.
Has the climate of Chato warmed?
Yes: Chato warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Chato?
The wettest day measured in Chato between 1940 and 2025 was 31 March 2009, with 74 mm of rain in 24 hours.
What was the windiest day in Chato?
The windiest day measured in Chato between 1940 and 2025 was 9 March 2007, with winds reaching 22.8 km/h.
What is the warmest month in Chato?
The warmest month in Chato is August (23.3 °C on average); the coldest is November (22.1 °C).
How much does it rain in Chato?
Chato receives on average 1,038 mm of precipitation per year, spread over about 183 rainy days.
Is it sunny in Chato?
Chato gets on average 10.9 hours of sunshine per day, roughly 3,979 hours per year over 1940-2025.
Are there tropical nights in Chato?
Yes: Chato has on average 133 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Chato?
In Chato, between 1940 and 2025, the highest apparent temperature reached 37.6 °C on 30 March 2012, and the lowest was 12.6 °C on 27 July 1974.
Compare Chato with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Chato