Dom Pedro climate — normals and trends
Dom Pedro (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.0 °C and it receives 1,404 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 (29.1 °C on average) and the coldest is March (25.4 °C). Rainfall peaks in March.
Dom Pedro averages 0 frost days, 286 hot days (≥ 30 °C) and 163 rainy days per year.
Dom Pedro has warmed by +0.8 °C between 1940 and 2025, or +0.09 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.6 °C (on 10 October 1949) and the coldest 18.2 °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
Dom PedroMaranhão
- coords
- -5.04°, -44.44°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
27.0°C
Average daily high
32.2°C
Average daily low
23.0°C
Annual rainfall
1,404mm
Sunshine / day
10.5h
Mean relative humidity
74%
Average peak wind
10.7km/h
Seasonal range
3.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
286 d/yr
Rainy days (≥ 1 mm)
163 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.8 °C
Average feels-like low
26.4 °C
Average peak gust
30.5 km/h
Tropical nights (≥ 20 °C)
363 d/yr
Solar radiation
19.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.8 °C
since 1940
+0.1 °C per decade · r² = 0.14 · 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
39.6 °C
10 October 1949
Coldest day
18.2 °C
7 July 1959
Wettest day
159 mm
26 December 1994
Windiest day
25.8 km/h
16 July 1988
Strongest gust
60.8 km/h
17 August 1991
Hottest feels-like
44.3 °C
31 October 2012
Coldest feels-like
17.6 °C
3 August 2001
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 | 31.3 °C | +0.7 °C | 363 mm | +124 mm |
| Feb | 31.1 °C | +1.0 °C | 176 mm | -78 mm |
| Mar | 30.8 °C | +1.0 °C | 284 mm | -21 mm |
| Apr | 31.7 °C | +1.7 °C | 111 mm | -119 mm |
| May | 32.4 °C | +1.9 °C | 25 mm | -75 mm |
| Jun | 33.0 °C | +1.4 °C | 9 mm | -15 mm |
| Jul | 34.0 °C | +1.1 °C | 3 mm | -6 mm |
| Aug | 34.6 °C | +0.3 °C | 5 mm | -1 mm |
| Sep | 36.1 °C | +0.9 °C | 2 mm | -8 mm |
| Oct | 35.4 °C | +0.4 °C | 47 mm | +19 mm |
| Nov | 34.8 °C | +0.9 °C | 10 mm | -54 mm |
| Dec | 32.7 °C | +0.3 °C | 106 mm | -28 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 Dom Pedro?
Dom Pedro has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.0 °C and it receives 1,404 mm of precipitation per year.
What is the hottest day ever recorded in Dom Pedro?
The hottest day measured in Dom Pedro between 1940 and 2025 was 10 October 1949, reaching 39.6 °C.
What is the coldest day in Dom Pedro?
The coldest day measured in Dom Pedro between 1940 and 2025 was 7 July 1959, at 18.2 °C.
Does it snow in Dom Pedro?
Almost never: Dom Pedro sees virtually no snow, with about 0 frost days per year.
Has the climate of Dom Pedro warmed?
Yes: Dom Pedro warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Dom Pedro?
The wettest day measured in Dom Pedro between 1940 and 2025 was 26 December 1994, with 159 mm of rain in 24 hours.
What was the windiest day in Dom Pedro?
The windiest day measured in Dom Pedro between 1940 and 2025 was 16 July 1988, with winds reaching 25.8 km/h.
What is the warmest month in Dom Pedro?
The warmest month in Dom Pedro is October (29.1 °C on average); the coldest is March (25.4 °C).
How much does it rain in Dom Pedro?
Dom Pedro receives on average 1,404 mm of precipitation per year, spread over about 163 rainy days.
Is it sunny in Dom Pedro?
Dom Pedro gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.
Are there tropical nights in Dom Pedro?
Yes: Dom Pedro has on average 363 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Dom Pedro?
In Dom Pedro, between 1940 and 2025, the highest apparent temperature reached 44.3 °C on 31 October 2012, and the lowest was 17.6 °C on 3 August 2001.
Compare Dom Pedro with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Dom Pedro