Pio XII climate — normals and trends
Pio XII (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.4 °C and it receives 1,611 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 (26.1 °C). Rainfall peaks in March.
Pio XII averages 0 frost days, 293 hot days (≥ 30 °C) and 178 rainy days per year.
Pio XII has warmed by +1.0 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.3 °C (on 12 December 1981) and the coldest 19.8 °C (on 1 August 2020).
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
Pio XIIMaranhão
- coords
- -3.83°, -45.15°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
27.4°C
Average daily high
32.1°C
Average daily low
23.9°C
Annual rainfall
1,611mm
Sunshine / day
10.5h
Mean relative humidity
77%
Average peak wind
12.6km/h
Seasonal range
3.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
293 d/yr
Rainy days (≥ 1 mm)
178 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.8 °C
Average feels-like low
28.2 °C
Average peak gust
31.9 km/h
Tropical nights (≥ 20 °C)
364 d/yr
Solar radiation
18.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.28 · 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
12 December 1981
Coldest day
19.8 °C
1 August 2020
Wettest day
306 mm
27 December 1993
Windiest day
25.7 km/h
16 August 1991
Strongest gust
56.9 km/h
8 September 1993
Hottest feels-like
43.5 °C
25 October 2017
Coldest feels-like
20.0 °C
4 July 1974
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 | 31.7 °C | +0.8 °C | 312 mm | +62 mm |
| Feb | 30.8 °C | +0.4 °C | 426 mm | +137 mm |
| Mar | 31.2 °C | +1.1 °C | 452 mm | +105 mm |
| Apr | 31.7 °C | +1.5 °C | 210 mm | -82 mm |
| May | 31.6 °C | +1.1 °C | 75 mm | -81 mm |
| Jun | 31.5 °C | +0.7 °C | 41 mm | -12 mm |
| Jul | 32.5 °C | +0.7 °C | 40 mm | +14 mm |
| Aug | 33.3 °C | -0.2 °C | 10 mm | -1 mm |
| Sep | 35.3 °C | +0.9 °C | 3 mm | -9 mm |
| Oct | 35.5 °C | +0.7 °C | 5 mm | -12 mm |
| Nov | 35.0 °C | +0.7 °C | 8 mm | -32 mm |
| Dec | 33.2 °C | +0.3 °C | 106 mm | -12 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 Pio XII?
Pio XII has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.4 °C and it receives 1,611 mm of precipitation per year.
What is the hottest day ever recorded in Pio XII?
The hottest day measured in Pio XII between 1940 and 2025 was 12 December 1981, reaching 39.3 °C.
What is the coldest day in Pio XII?
The coldest day measured in Pio XII between 1940 and 2025 was 1 August 2020, at 19.8 °C.
Does it snow in Pio XII?
Almost never: Pio XII sees virtually no snow, with about 0 frost days per year.
Has the climate of Pio XII warmed?
Yes: Pio XII warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Pio XII?
The wettest day measured in Pio XII between 1940 and 2025 was 27 December 1993, with 306 mm of rain in 24 hours.
What was the windiest day in Pio XII?
The windiest day measured in Pio XII between 1940 and 2025 was 16 August 1991, with winds reaching 25.7 km/h.
What is the warmest month in Pio XII?
The warmest month in Pio XII is October (29.1 °C on average); the coldest is March (26.1 °C).
How much does it rain in Pio XII?
Pio XII receives on average 1,611 mm of precipitation per year, spread over about 178 rainy days.
Is it sunny in Pio XII?
Pio XII gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.
Are there tropical nights in Pio XII?
Yes: Pio XII has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Pio XII?
In Pio XII, between 1940 and 2025, the highest apparent temperature reached 43.5 °C on 25 October 2017, and the lowest was 20.0 °C on 4 July 1974.
Compare Pio XII with another city
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Nearby cities
The climate around Pio XII