Ilhéus climate — normals and trends
Ilhéus (Brazil) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 24.6 °C and it receives 1,225 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 (26.1 °C on average) and the coldest is July (22.6 °C). Rainfall peaks in April.
Ilhéus averages 0 frost days, 1 hot days (≥ 30 °C) and 249 rainy days per year.
Ilhéus has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.
The hottest day of the period reached 31.1 °C (on 1 March 2024) and the coldest 18.1 °C (on 14 August 2004).
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
IlhéusEstado de Bahia
- coords
- -14.80°, -39.03°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.6°C
Average daily high
26.2°C
Average daily low
23.1°C
Annual rainfall
1,225mm
Sunshine / day
10.8h
Mean relative humidity
84%
Average peak wind
16.1km/h
Seasonal range
3.5°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
249 d/yr
Annual snowfall
0.0 cm
Average feels-like high
30.1 °C
Average feels-like low
26.0 °C
Average peak gust
29.3 km/h
Tropical nights (≥ 20 °C)
357 d/yr
Solar radiation
18.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.1 °C
since 1940
+0.1 °C per decade · r² = 0.58 · 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
31.1 °C
1 March 2024
Coldest day
18.1 °C
14 August 2004
Wettest day
192 mm
16 April 2022
Windiest day
36.4 km/h
30 July 2007
Strongest gust
65.9 km/h
30 July 2007
Hottest feels-like
39.2 °C
1 March 2024
Coldest feels-like
17.2 °C
31 August 2022
Sunniest day
12.9 h
8 December 1940
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 | 28.4 °C | +0.8 °C | 173 mm | +83 mm |
| Feb | 27.9 °C | +0.2 °C | 87 mm | -4 mm |
| Mar | 28.1 °C | +0.4 °C | 76 mm | -44 mm |
| Apr | 28.2 °C | +1.1 °C | 124 mm | -15 mm |
| May | 26.1 °C | +0.1 °C | 303 mm | +190 mm |
| Jun | 25.6 °C | +0.6 °C | 97 mm | -5 mm |
| Jul | 24.4 °C | +0.2 °C | 89 mm | -9 mm |
| Aug | 24.8 °C | +0.5 °C | 64 mm | -8 mm |
| Sep | 25.2 °C | +0.2 °C | 50 mm | -15 mm |
| Oct | 25.6 °C | -0.3 °C | 144 mm | +54 mm |
| Nov | 26.5 °C | -0.1 °C | 150 mm | +18 mm |
| Dec | 27.4 °C | +0.2 °C | 99 mm | -16 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 Ilhéus?
Ilhéus has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 24.6 °C and it receives 1,225 mm of precipitation per year.
What is the hottest day ever recorded in Ilhéus?
The hottest day measured in Ilhéus between 1940 and 2025 was 1 March 2024, reaching 31.1 °C.
What is the coldest day in Ilhéus?
The coldest day measured in Ilhéus between 1940 and 2025 was 14 August 2004, at 18.1 °C.
Does it snow in Ilhéus?
Almost never: Ilhéus sees virtually no snow, with about 0 frost days per year.
Has the climate of Ilhéus warmed?
Yes: Ilhéus warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ilhéus?
The wettest day measured in Ilhéus between 1940 and 2025 was 16 April 2022, with 192 mm of rain in 24 hours.
What was the windiest day in Ilhéus?
The windiest day measured in Ilhéus between 1940 and 2025 was 30 July 2007, with winds reaching 36.4 km/h.
What is the warmest month in Ilhéus?
The warmest month in Ilhéus is February (26.1 °C on average); the coldest is July (22.6 °C).
How much does it rain in Ilhéus?
Ilhéus receives on average 1,225 mm of precipitation per year, spread over about 249 rainy days.
Is it sunny in Ilhéus?
Ilhéus gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
Are there tropical nights in Ilhéus?
Yes: Ilhéus has on average 357 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ilhéus?
In Ilhéus, between 1940 and 2025, the highest apparent temperature reached 39.2 °C on 1 March 2024, and the lowest was 17.2 °C on 31 August 2022.
Compare Ilhéus with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ilhéus