Tuntum climate — normals and trends
Tuntum (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.0 °C and it receives 1,166 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 October (29.0 °C on average) and the coldest is March (25.5 °C). Rainfall peaks in March.
Tuntum averages 0 frost days, 279 hot days (≥ 30 °C) and 154 rainy days per year.
Tuntum has warmed by +0.7 °C between 1940 and 2025, or +0.09 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.3 °C (on 20 November 1942) and the coldest 17.5 °C (on 7 July 1959).
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
TuntumMaranhão
- coords
- -5.26°, -44.65°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
27.0°C
Average daily high
32.0°C
Average daily low
23.1°C
Annual rainfall
1,166mm
Sunshine / day
10.4h
Mean relative humidity
75%
Average peak wind
11.4km/h
Seasonal range
3.5°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
279 d/yr
Rainy days (≥ 1 mm)
154 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.7 °C
Average feels-like low
26.5 °C
Average peak gust
29.8 km/h
Tropical nights (≥ 20 °C)
361 d/yr
Solar radiation
19.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.7 °C
since 1940
+0.1 °C per decade · r² = 0.13 · 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
39.3 °C
20 November 1942
Coldest day
17.5 °C
7 July 1959
Wettest day
241 mm
18 January 1955
Windiest day
27.3 km/h
16 July 1988
Strongest gust
58.3 km/h
17 August 1991
Hottest feels-like
45.5 °C
19 October 2014
Coldest feels-like
17.9 °C
3 August 2001
Sunniest day
12.0 h
15 January 1942
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 31.1 °C | +0.8 °C | 372 mm | +165 mm |
| Feb | 30.8 °C | +0.9 °C | 117 mm | -93 mm |
| Mar | 30.5 °C | +0.9 °C | 223 mm | -19 mm |
| Apr | 31.3 °C | +1.4 °C | 81 mm | -98 mm |
| May | 32.2 °C | +1.7 °C | 22 mm | -53 mm |
| Jun | 32.8 °C | +1.3 °C | 8 mm | -9 mm |
| Jul | 33.8 °C | +1.1 °C | 1 mm | -6 mm |
| Aug | 34.5 °C | +0.4 °C | 2 mm | -2 mm |
| Sep | 35.9 °C | +0.9 °C | 1 mm | -8 mm |
| Oct | 35.1 °C | +0.3 °C | 78 mm | +50 mm |
| Nov | 34.3 °C | +0.7 °C | 10 mm | -56 mm |
| Dec | 32.3 °C | +0.2 °C | 84 mm | -41 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 Tuntum?
Tuntum has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.0 °C and it receives 1,166 mm of precipitation per year.
What is the hottest day ever recorded in Tuntum?
The hottest day measured in Tuntum between 1940 and 2025 was 20 November 1942, reaching 39.3 °C.
What is the coldest day in Tuntum?
The coldest day measured in Tuntum between 1940 and 2025 was 7 July 1959, at 17.5 °C.
Does it snow in Tuntum?
Almost never: Tuntum sees virtually no snow, with about 0 frost days per year.
Has the climate of Tuntum warmed?
Yes: Tuntum warmed by +0.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Tuntum?
The wettest day measured in Tuntum between 1940 and 2025 was 18 January 1955, with 241 mm of rain in 24 hours.
What was the windiest day in Tuntum?
The windiest day measured in Tuntum between 1940 and 2025 was 16 July 1988, with winds reaching 27.3 km/h.
What is the warmest month in Tuntum?
The warmest month in Tuntum is October (29.0 °C on average); the coldest is March (25.5 °C).
How much does it rain in Tuntum?
Tuntum receives on average 1,166 mm of precipitation per year, spread over about 154 rainy days.
Is it sunny in Tuntum?
Tuntum gets on average 10.4 hours of sunshine per day, roughly 3,796 hours per year over 1940-2025.
Are there tropical nights in Tuntum?
Yes: Tuntum has on average 361 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Tuntum?
In Tuntum, between 1940 and 2025, the highest apparent temperature reached 45.5 °C on 19 October 2014, and the lowest was 17.9 °C on 3 August 2001.
Compare Tuntum with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Tuntum