Picos climate — normals and trends
Picos (Brazil) has a hot semi-arid climate (BSh) under the Köppen-Geiger classification. Its mean annual temperature is 27.6 °C and it receives 677 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 (30.3 °C on average) and the coldest is March (25.8 °C). Rainfall peaks in March.
Picos averages 0 frost days, 302 hot days (≥ 30 °C) and 89 rainy days per year.
Picos has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.
The hottest day of the period reached 40.5 °C (on 9 October 2024) and the coldest 17.1 °C (on 4 July 1974).
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
PicosPiauí
- coords
- -7.08°, -41.47°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
27.6°C
Average daily high
32.7°C
Average daily low
23.0°C
Annual rainfall
677mm
Sunshine / day
10.9h
Mean relative humidity
57%
Average peak wind
15.6km/h
Seasonal range
4.5°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
302 d/yr
Rainy days (≥ 1 mm)
89 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.8 °C
Average feels-like low
24.4 °C
Average peak gust
35.4 km/h
Tropical nights (≥ 20 °C)
355 d/yr
Solar radiation
20.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.1 °C
since 1940
+0.1 °C per decade · r² = 0.16 · 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
40.5 °C
9 October 2024
Coldest day
17.1 °C
4 July 1974
Wettest day
159 mm
22 January 1975
Windiest day
32.3 km/h
4 July 2017
Strongest gust
64.4 km/h
4 July 2017
Hottest feels-like
43.9 °C
28 October 2018
Coldest feels-like
16.0 °C
2 August 1988
Sunniest day
12.4 h
7 December 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 | -0.4 °C | 172 mm | +36 mm |
| Feb | 33.4 °C | +2.7 °C | 16 mm | -120 mm |
| Mar | 33.1 °C | +2.8 °C | 20 mm | -148 mm |
| Apr | 34.3 °C | +3.6 °C | 16 mm | -88 mm |
| May | 33.6 °C | +1.9 °C | 3 mm | -24 mm |
| Jun | 33.4 °C | +1.5 °C | 1 mm | -3 mm |
| Jul | 33.8 °C | +1.7 °C | 0 mm | -2 mm |
| Aug | 34.6 °C | +1.2 °C | 0 mm | -1 mm |
| Sep | 35.5 °C | +0.5 °C | 0 mm | -2 mm |
| Oct | 36.3 °C | +0.5 °C | 1 mm | -7 mm |
| Nov | 36.4 °C | +1.4 °C | 9 mm | -19 mm |
| Dec | 33.7 °C | 0.0 °C | 24 mm | -39 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 Picos?
Picos has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 27.6 °C and it receives 677 mm of precipitation per year.
What is the hottest day ever recorded in Picos?
The hottest day measured in Picos between 1940 and 2025 was 9 October 2024, reaching 40.5 °C.
What is the coldest day in Picos?
The coldest day measured in Picos between 1940 and 2025 was 4 July 1974, at 17.1 °C.
Does it snow in Picos?
Almost never: Picos sees virtually no snow, with about 0 frost days per year.
Has the climate of Picos warmed?
Yes: Picos warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Picos?
The wettest day measured in Picos between 1940 and 2025 was 22 January 1975, with 159 mm of rain in 24 hours.
What was the windiest day in Picos?
The windiest day measured in Picos between 1940 and 2025 was 4 July 2017, with winds reaching 32.3 km/h.
What is the warmest month in Picos?
The warmest month in Picos is October (30.3 °C on average); the coldest is March (25.8 °C).
How much does it rain in Picos?
Picos receives on average 677 mm of precipitation per year, spread over about 89 rainy days.
Is it sunny in Picos?
Picos gets on average 10.9 hours of sunshine per day, roughly 3,979 hours per year over 1940-2025.
Are there tropical nights in Picos?
Yes: Picos has on average 355 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Picos?
In Picos, between 1940 and 2025, the highest apparent temperature reached 43.9 °C on 28 October 2018, and the lowest was 16.0 °C on 2 August 1988.
Compare Picos with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Picos