Aracaju climate — normals and trends
Aracaju (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.3 °C and it receives 1,124 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 March (26.4 °C on average) and the coldest is August (24.0 °C). Rainfall peaks in May.
Aracaju averages 0 frost days, 0 hot days (≥ 30 °C) and 229 rainy days per year.
Aracaju has warmed by +0.7 °C between 1940 and 2025, or +0.09 °C per decade. This trend is statistically significant.
The hottest day of the period reached 30.5 °C (on 7 April 2015) and the coldest 20.8 °C (on 5 September 1943).
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
AracajuSergipe
- coords
- -10.91°, -37.07°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.3°C
Average daily high
26.1°C
Average daily low
24.5°C
Annual rainfall
1,124mm
Sunshine / day
11.3h
Mean relative humidity
81%
Average peak wind
23.5km/h
Seasonal range
2.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
229 d/yr
Annual snowfall
0.0 cm
Average feels-like high
29.2 °C
Average feels-like low
26.6 °C
Average peak gust
32.7 km/h
Tropical nights (≥ 20 °C)
364 d/yr
Solar radiation
20.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.7 °C
since 1940
+0.1 °C per decade · r² = 0.50 · 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
30.5 °C
7 April 2015
Coldest day
20.8 °C
5 September 1943
Wettest day
106 mm
29 April 2011
Windiest day
44.4 km/h
15 July 1988
Strongest gust
61.9 km/h
15 July 1988
Hottest feels-like
38.2 °C
22 March 2020
Coldest feels-like
20.2 °C
16 August 1991
Sunniest day
12.6 h
29 December 2025
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 | 27.4 °C | +0.6 °C | 94 mm | +42 mm |
| Feb | 27.4 °C | +0.3 °C | 64 mm | 0 mm |
| Mar | 27.6 °C | +0.3 °C | 70 mm | -23 mm |
| Apr | 28.0 °C | +0.9 °C | 38 mm | -106 mm |
| May | 26.7 °C | +0.3 °C | 287 mm | +101 mm |
| Jun | 25.9 °C | +0.3 °C | 305 mm | +149 mm |
| Jul | 25.1 °C | +0.2 °C | 103 mm | -35 mm |
| Aug | 25.1 °C | +0.4 °C | 135 mm | +37 mm |
| Sep | 25.2 °C | +0.2 °C | 110 mm | +38 mm |
| Oct | 25.7 °C | 0.0 °C | 71 mm | +22 mm |
| Nov | 26.7 °C | +0.5 °C | 17 mm | -21 mm |
| Dec | 26.6 °C | 0.0 °C | 15 mm | -21 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 Aracaju?
Aracaju has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.3 °C and it receives 1,124 mm of precipitation per year.
What is the hottest day ever recorded in Aracaju?
The hottest day measured in Aracaju between 1940 and 2025 was 7 April 2015, reaching 30.5 °C.
What is the coldest day in Aracaju?
The coldest day measured in Aracaju between 1940 and 2025 was 5 September 1943, at 20.8 °C.
Does it snow in Aracaju?
Almost never: Aracaju sees virtually no snow, with about 0 frost days per year.
Has the climate of Aracaju warmed?
Yes: Aracaju warmed by +0.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Aracaju?
The wettest day measured in Aracaju between 1940 and 2025 was 29 April 2011, with 106 mm of rain in 24 hours.
What was the windiest day in Aracaju?
The windiest day measured in Aracaju between 1940 and 2025 was 15 July 1988, with winds reaching 44.4 km/h.
What is the warmest month in Aracaju?
The warmest month in Aracaju is March (26.4 °C on average); the coldest is August (24.0 °C).
How much does it rain in Aracaju?
Aracaju receives on average 1,124 mm of precipitation per year, spread over about 229 rainy days.
Is it sunny in Aracaju?
Aracaju gets on average 11.3 hours of sunshine per day, roughly 4,125 hours per year over 1940-2025.
Are there tropical nights in Aracaju?
Yes: Aracaju has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Aracaju?
In Aracaju, between 1940 and 2025, the highest apparent temperature reached 38.2 °C on 22 March 2020, and the lowest was 20.2 °C on 16 August 1991.
Compare Aracaju with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Aracaju