Pacajá climate — normals and trends
Pacajá (Brazil) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 26.4 °C and it receives 1,957 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 (28.4 °C on average) and the coldest is February (25.2 °C). Rainfall peaks in March.
Pacajá averages 0 frost days, 253 hot days (≥ 30 °C) and 223 rainy days per year.
Pacajá has warmed by +0.8 °C between 1940 and 2025, or +0.09 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.7 °C (on 19 October 1941) and the coldest 17.7 °C (on 6 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
PacajáPará
- coords
- -3.84°, -50.64°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.4°C
Average daily high
31.3°C
Average daily low
22.8°C
Annual rainfall
1,957mm
Sunshine / day
9.6h
Mean relative humidity
80%
Average peak wind
10.0km/h
Seasonal range
3.2°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
253 d/yr
Rainy days (≥ 1 mm)
223 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.7 °C
Average feels-like low
26.7 °C
Average peak gust
29.2 km/h
Tropical nights (≥ 20 °C)
363 d/yr
Solar radiation
17.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.8 °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
39.7 °C
19 October 1941
Coldest day
17.7 °C
6 July 1974
Wettest day
188 mm
27 February 2010
Windiest day
20.6 km/h
27 June 2016
Strongest gust
54.4 km/h
9 June 1999
Hottest feels-like
44.3 °C
26 September 2019
Coldest feels-like
18.7 °C
29 July 1975
Sunniest day
12.2 h
4 January 2003
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 | 30.0 °C | +0.3 °C | 346 mm | +43 mm |
| Feb | 30.1 °C | +0.6 °C | 515 mm | +190 mm |
| Mar | 30.5 °C | +0.9 °C | 473 mm | +110 mm |
| Apr | 31.2 °C | +1.5 °C | 165 mm | -110 mm |
| May | 31.4 °C | +1.3 °C | 65 mm | -94 mm |
| Jun | 31.5 °C | +0.9 °C | 60 mm | -3 mm |
| Jul | 33.0 °C | +1.5 °C | 12 mm | -22 mm |
| Aug | 33.0 °C | -0.1 °C | 18 mm | -8 mm |
| Sep | 33.6 °C | -0.2 °C | 8 mm | -27 mm |
| Oct | 34.0 °C | +0.2 °C | 17 mm | -47 mm |
| Nov | 33.3 °C | +0.6 °C | 65 mm | -47 mm |
| Dec | 30.7 °C | -0.3 °C | 162 mm | -35 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 Pacajá?
Pacajá has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 26.4 °C and it receives 1,957 mm of precipitation per year.
What is the hottest day ever recorded in Pacajá?
The hottest day measured in Pacajá between 1940 and 2025 was 19 October 1941, reaching 39.7 °C.
What is the coldest day in Pacajá?
The coldest day measured in Pacajá between 1940 and 2025 was 6 July 1974, at 17.7 °C.
Does it snow in Pacajá?
Almost never: Pacajá sees virtually no snow, with about 0 frost days per year.
Has the climate of Pacajá warmed?
Yes: Pacajá warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Pacajá?
The wettest day measured in Pacajá between 1940 and 2025 was 27 February 2010, with 188 mm of rain in 24 hours.
What was the windiest day in Pacajá?
The windiest day measured in Pacajá between 1940 and 2025 was 27 June 2016, with winds reaching 20.6 km/h.
What is the warmest month in Pacajá?
The warmest month in Pacajá is October (28.4 °C on average); the coldest is February (25.2 °C).
How much does it rain in Pacajá?
Pacajá receives on average 1,957 mm of precipitation per year, spread over about 223 rainy days.
Is it sunny in Pacajá?
Pacajá gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.
Are there tropical nights in Pacajá?
Yes: Pacajá has on average 363 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Pacajá?
In Pacajá, between 1940 and 2025, the highest apparent temperature reached 44.3 °C on 26 September 2019, and the lowest was 18.7 °C on 29 July 1975.
Compare Pacajá with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Pacajá