São Miguel do Tapuio climate — normals and trends
São Miguel do Tapuio (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.8 °C and it receives 1,019 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 (25.1 °C). Rainfall peaks in March.
São Miguel do Tapuio averages 0 frost days, 273 hot days (≥ 30 °C) and 102 rainy days per year.
São Miguel do Tapuio has warmed by +1.0 °C between 1940 and 2025, or +0.12 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.0 °C (on 31 October 2023) and the coldest 16.9 °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
São Miguel do TapuioPiauí
- coords
- -5.50°, -41.32°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.8°C
Average daily high
31.9°C
Average daily low
22.2°C
Annual rainfall
1,019mm
Sunshine / day
11.0h
Mean relative humidity
60%
Average peak wind
19.7km/h
Seasonal range
3.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
273 d/yr
Rainy days (≥ 1 mm)
102 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.6 °C
Average feels-like low
23.4 °C
Average peak gust
40.4 km/h
Tropical nights (≥ 20 °C)
358 d/yr
Solar radiation
21.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.18 · 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
39.0 °C
31 October 2023
Coldest day
16.9 °C
4 July 1974
Wettest day
208 mm
6 February 1994
Windiest day
36.4 km/h
21 June 2020
Strongest gust
66.6 km/h
21 June 2020
Hottest feels-like
41.2 °C
11 March 2010
Coldest feels-like
15.2 °C
29 July 1991
Sunniest day
12.3 h
1 December 2004
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 | 0.0 °C | 208 mm | +53 mm |
| Feb | 30.8 °C | +0.5 °C | 101 mm | -101 mm |
| Mar | 29.7 °C | +0.2 °C | 115 mm | -180 mm |
| Apr | 30.8 °C | +1.4 °C | 48 mm | -158 mm |
| May | 31.7 °C | +1.5 °C | 7 mm | -59 mm |
| Jun | 32.1 °C | +1.1 °C | 2 mm | -10 mm |
| Jul | 33.0 °C | +1.3 °C | 0 mm | -6 mm |
| Aug | 34.0 °C | +1.1 °C | 1 mm | -1 mm |
| Sep | 34.9 °C | +0.8 °C | 0 mm | -2 mm |
| Oct | 35.4 °C | +0.7 °C | 5 mm | -2 mm |
| Nov | 35.4 °C | +1.0 °C | 1 mm | -13 mm |
| Dec | 33.2 °C | -0.3 °C | 31 mm | -23 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 São Miguel do Tapuio?
São Miguel do Tapuio has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.8 °C and it receives 1,019 mm of precipitation per year.
What is the hottest day ever recorded in São Miguel do Tapuio?
The hottest day measured in São Miguel do Tapuio between 1940 and 2025 was 31 October 2023, reaching 39.0 °C.
What is the coldest day in São Miguel do Tapuio?
The coldest day measured in São Miguel do Tapuio between 1940 and 2025 was 4 July 1974, at 16.9 °C.
Does it snow in São Miguel do Tapuio?
Almost never: São Miguel do Tapuio sees virtually no snow, with about 0 frost days per year.
Has the climate of São Miguel do Tapuio warmed?
Yes: São Miguel do Tapuio warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in São Miguel do Tapuio?
The wettest day measured in São Miguel do Tapuio between 1940 and 2025 was 6 February 1994, with 208 mm of rain in 24 hours.
What was the windiest day in São Miguel do Tapuio?
The windiest day measured in São Miguel do Tapuio between 1940 and 2025 was 21 June 2020, with winds reaching 36.4 km/h.
What is the warmest month in São Miguel do Tapuio?
The warmest month in São Miguel do Tapuio is October (29.0 °C on average); the coldest is March (25.1 °C).
How much does it rain in São Miguel do Tapuio?
São Miguel do Tapuio receives on average 1,019 mm of precipitation per year, spread over about 102 rainy days.
Is it sunny in São Miguel do Tapuio?
São Miguel do Tapuio gets on average 11.0 hours of sunshine per day, roughly 4,015 hours per year over 1940-2025.
Are there tropical nights in São Miguel do Tapuio?
Yes: São Miguel do Tapuio has on average 358 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in São Miguel do Tapuio?
In São Miguel do Tapuio, between 1940 and 2025, the highest apparent temperature reached 41.2 °C on 11 March 2010, and the lowest was 15.2 °C on 29 July 1991.
Compare São Miguel do Tapuio with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around São Miguel do Tapuio