Alcobaça climate — normals and trends
Alcobaça (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 24.4 °C and it receives 1,079 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 February (26.2 °C on average) and the coldest is July (22.3 °C). Rainfall peaks in November.
Alcobaça averages 0 frost days, 11 hot days (≥ 30 °C) and 187 rainy days per year.
Alcobaça 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 33.0 °C (on 24 February 2019) and the coldest 17.0 °C (on 25 August 1981).
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
AlcobaçaEstado de Bahia
- coords
- -17.52°, -39.20°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.4°C
Average daily high
26.6°C
Average daily low
22.5°C
Annual rainfall
1,079mm
Sunshine / day
10.5h
Mean relative humidity
81%
Average peak wind
18.8km/h
Seasonal range
3.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
11 d/yr
Rainy days (≥ 1 mm)
187 d/yr
Annual snowfall
0.0 cm
Average feels-like high
29.8 °C
Average feels-like low
24.7 °C
Average peak gust
32.8 km/h
Tropical nights (≥ 20 °C)
337 d/yr
Solar radiation
18.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °C per decade · r² = 0.54 · 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
33.0 °C
24 February 2019
Coldest day
17.0 °C
25 August 1981
Wettest day
238 mm
30 April 1943
Windiest day
38.5 km/h
22 October 1944
Strongest gust
66.2 km/h
29 July 2007
Hottest feels-like
39.1 °C
21 March 2020
Coldest feels-like
14.8 °C
26 August 2020
Sunniest day
13.0 h
4 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 | 28.8 °C | +0.6 °C | 102 mm | +18 mm |
| Feb | 29.2 °C | +0.6 °C | 48 mm | -18 mm |
| Mar | 29.4 °C | +1.0 °C | 55 mm | -56 mm |
| Apr | 28.4 °C | +1.0 °C | 143 mm | +25 mm |
| May | 26.4 °C | +0.2 °C | 131 mm | +44 mm |
| Jun | 25.8 °C | +0.6 °C | 64 mm | -0 mm |
| Jul | 24.8 °C | +0.3 °C | 41 mm | -21 mm |
| Aug | 25.0 °C | +0.3 °C | 42 mm | -4 mm |
| Sep | 25.7 °C | +0.3 °C | 45 mm | -10 mm |
| Oct | 26.1 °C | -0.2 °C | 114 mm | +9 mm |
| Nov | 27.0 °C | +0.2 °C | 133 mm | -22 mm |
| Dec | 27.9 °C | +0.4 °C | 162 mm | +34 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 Alcobaça?
Alcobaça has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 24.4 °C and it receives 1,079 mm of precipitation per year.
What is the hottest day ever recorded in Alcobaça?
The hottest day measured in Alcobaça between 1940 and 2025 was 24 February 2019, reaching 33.0 °C.
What is the coldest day in Alcobaça?
The coldest day measured in Alcobaça between 1940 and 2025 was 25 August 1981, at 17.0 °C.
Does it snow in Alcobaça?
Almost never: Alcobaça sees virtually no snow, with about 0 frost days per year.
Has the climate of Alcobaça warmed?
Yes: Alcobaça warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Alcobaça?
The wettest day measured in Alcobaça between 1940 and 2025 was 30 April 1943, with 238 mm of rain in 24 hours.
What was the windiest day in Alcobaça?
The windiest day measured in Alcobaça between 1940 and 2025 was 22 October 1944, with winds reaching 38.5 km/h.
What is the warmest month in Alcobaça?
The warmest month in Alcobaça is February (26.2 °C on average); the coldest is July (22.3 °C).
How much does it rain in Alcobaça?
Alcobaça receives on average 1,079 mm of precipitation per year, spread over about 187 rainy days.
Is it sunny in Alcobaça?
Alcobaça gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.
Are there tropical nights in Alcobaça?
Yes: Alcobaça has on average 337 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Alcobaça?
In Alcobaça, between 1940 and 2025, the highest apparent temperature reached 39.1 °C on 21 March 2020, and the lowest was 14.8 °C on 26 August 2020.
Compare Alcobaça with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Alcobaça