Peritoró climate — normals and trends
Peritoró (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.0 °C and it receives 1,477 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 (25.4 °C). Rainfall peaks in March.
Peritoró averages 0 frost days, 286 hot days (≥ 30 °C) and 162 rainy days per year.
Peritoró has warmed by +0.6 °C between 1940 and 2025, or +0.07 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.5 °C (on 24 October 2012) and the coldest 17.9 °C (on 2 September 2024).
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
PeritoróMaranhão
- coords
- -4.38°, -44.33°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
27.0°C
Average daily high
32.1°C
Average daily low
22.9°C
Annual rainfall
1,477mm
Sunshine / day
10.6h
Mean relative humidity
75%
Average peak wind
10.4km/h
Seasonal range
3.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
286 d/yr
Rainy days (≥ 1 mm)
162 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.9 °C
Average feels-like low
26.5 °C
Average peak gust
30.4 km/h
Tropical nights (≥ 20 °C)
362 d/yr
Solar radiation
19.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.6 °C
since 1940
+0.1 °C per decade · r² = 0.10 · p = 0.003
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
39.5 °C
24 October 2012
Coldest day
17.9 °C
2 September 2024
Wettest day
161 mm
26 December 1994
Windiest day
24.6 km/h
17 August 1991
Strongest gust
58.0 km/h
16 August 1991
Hottest feels-like
44.2 °C
21 October 2015
Coldest feels-like
17.5 °C
3 August 2001
Sunniest day
12.0 h
2 January 1940
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 | 31.6 °C | +0.8 °C | 336 mm | +97 mm |
| Feb | 31.0 °C | +0.7 °C | 275 mm | +11 mm |
| Mar | 30.8 °C | +1.0 °C | 361 mm | +31 mm |
| Apr | 31.6 °C | +1.8 °C | 199 mm | -68 mm |
| May | 31.7 °C | +1.4 °C | 75 mm | -51 mm |
| Jun | 32.1 °C | +0.8 °C | 12 mm | -21 mm |
| Jul | 33.3 °C | +0.8 °C | 6 mm | -7 mm |
| Aug | 34.0 °C | +0.1 °C | 4 mm | -2 mm |
| Sep | 35.6 °C | +0.8 °C | 2 mm | -7 mm |
| Oct | 35.6 °C | +0.6 °C | 14 mm | -6 mm |
| Nov | 35.0 °C | +0.7 °C | 7 mm | -41 mm |
| Dec | 33.0 °C | +0.2 °C | 90 mm | -32 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 Peritoró?
Peritoró has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.0 °C and it receives 1,477 mm of precipitation per year.
What is the hottest day ever recorded in Peritoró?
The hottest day measured in Peritoró between 1940 and 2025 was 24 October 2012, reaching 39.5 °C.
What is the coldest day in Peritoró?
The coldest day measured in Peritoró between 1940 and 2025 was 2 September 2024, at 17.9 °C.
Does it snow in Peritoró?
Almost never: Peritoró sees virtually no snow, with about 0 frost days per year.
Has the climate of Peritoró warmed?
Yes: Peritoró warmed by +0.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Peritoró?
The wettest day measured in Peritoró between 1940 and 2025 was 26 December 1994, with 161 mm of rain in 24 hours.
What was the windiest day in Peritoró?
The windiest day measured in Peritoró between 1940 and 2025 was 17 August 1991, with winds reaching 24.6 km/h.
What is the warmest month in Peritoró?
The warmest month in Peritoró is October (29.0 °C on average); the coldest is March (25.4 °C).
How much does it rain in Peritoró?
Peritoró receives on average 1,477 mm of precipitation per year, spread over about 162 rainy days.
Is it sunny in Peritoró?
Peritoró gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.
Are there tropical nights in Peritoró?
Yes: Peritoró has on average 362 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Peritoró?
In Peritoró, between 1940 and 2025, the highest apparent temperature reached 44.2 °C on 21 October 2015, and the lowest was 17.5 °C on 3 August 2001.
Compare Peritoró with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Peritoró