Apicum-Açu climate — normals and trends
Apicum-Açu (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.4 °C and it receives 2,013 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 November (26.9 °C on average) and the coldest is February (25.9 °C). Rainfall peaks in March.
Apicum-Açu averages 0 frost days, 3 hot days (≥ 30 °C) and 239 rainy days per year.
Apicum-Açu has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.
The hottest day of the period reached 31.2 °C (on 27 April 2016) and the coldest 22.6 °C (on 23 January 1971).
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
Apicum-AçuMaranhão
- coords
- -1.53°, -45.08°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.4°C
Average daily high
27.8°C
Average daily low
25.2°C
Annual rainfall
2,013mm
Sunshine / day
10.5h
Mean relative humidity
85%
Average peak wind
19.9km/h
Seasonal range
1.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
239 d/yr
Annual snowfall
0.0 cm
Average feels-like high
32.1 °C
Average feels-like low
28.7 °C
Average peak gust
37.4 km/h
Tropical nights (≥ 20 °C)
364 d/yr
Solar radiation
18.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °C per decade · r² = 0.63 · 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
31.2 °C
27 April 2016
Coldest day
22.6 °C
23 January 1971
Wettest day
206 mm
1 April 2019
Windiest day
37.1 km/h
11 October 1960
Strongest gust
63.4 km/h
30 August 2020
Hottest feels-like
37.4 °C
19 May 2007
Coldest feels-like
25.1 °C
3 September 1954
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 | 28.1 °C | +0.5 °C | 297 mm | +65 mm |
| Feb | 27.9 °C | +0.5 °C | 350 mm | +27 mm |
| Mar | 28.4 °C | +1.1 °C | 476 mm | +74 mm |
| Apr | 28.3 °C | +0.8 °C | 353 mm | -31 mm |
| May | 29.0 °C | +1.1 °C | 194 mm | -72 mm |
| Jun | 28.2 °C | +0.3 °C | 97 mm | -40 mm |
| Jul | 28.3 °C | +0.5 °C | 75 mm | -9 mm |
| Aug | 28.0 °C | +0.1 °C | 45 mm | +8 mm |
| Sep | 28.5 °C | +0.6 °C | 17 mm | -4 mm |
| Oct | 28.4 °C | +0.2 °C | 22 mm | +8 mm |
| Nov | 28.4 °C | 0.0 °C | 35 mm | +13 mm |
| Dec | 28.5 °C | +0.3 °C | 77 mm | -14 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 Apicum-Açu?
Apicum-Açu has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.4 °C and it receives 2,013 mm of precipitation per year.
What is the hottest day ever recorded in Apicum-Açu?
The hottest day measured in Apicum-Açu between 1940 and 2025 was 27 April 2016, reaching 31.2 °C.
What is the coldest day in Apicum-Açu?
The coldest day measured in Apicum-Açu between 1940 and 2025 was 23 January 1971, at 22.6 °C.
Does it snow in Apicum-Açu?
Almost never: Apicum-Açu sees virtually no snow, with about 0 frost days per year.
Has the climate of Apicum-Açu warmed?
Yes: Apicum-Açu warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Apicum-Açu?
The wettest day measured in Apicum-Açu between 1940 and 2025 was 1 April 2019, with 206 mm of rain in 24 hours.
What was the windiest day in Apicum-Açu?
The windiest day measured in Apicum-Açu between 1940 and 2025 was 11 October 1960, with winds reaching 37.1 km/h.
What is the warmest month in Apicum-Açu?
The warmest month in Apicum-Açu is November (26.9 °C on average); the coldest is February (25.9 °C).
How much does it rain in Apicum-Açu?
Apicum-Açu receives on average 2,013 mm of precipitation per year, spread over about 239 rainy days.
Is it sunny in Apicum-Açu?
Apicum-Açu gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.
Are there tropical nights in Apicum-Açu?
Yes: Apicum-Açu has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Apicum-Açu?
In Apicum-Açu, between 1940 and 2025, the highest apparent temperature reached 37.4 °C on 19 May 2007, and the lowest was 25.1 °C on 3 September 1954.
Compare Apicum-Açu with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Apicum-Açu