Ilhéus in Summer
In summer (December, January and February), Ilhéus sees average daytime highs around 28°C and overnight lows near 25°C, with 285 mm of rain over about 58 wet days across the season. It is the warmest season of the year and the 2nd-wettest season.
Across summer, daytime highs hold fairly steady around 28°C. The sky is clear or mostly clear about 35% of the time across summer, and the air most often feels oppressive.
Summer is Ilhéus's 3rd-best season to visit on our travel score. Ilhéus has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Ilhéus's year-round climate.
- Avg daytime high
- 28°C
- warmest season of the year
- Avg overnight low
- 25°C
- Rainfall
- 285 mm
- 58 wet days
- Avg wind
- 12 km/h
- Travel score
- 4.9
- 3rd-best season
- Months
- Dec · Jan · Feb
Temperature in Ilhéus in Summer
Across summer, daytime highs hold fairly steady around 28°C.
A typical summer day in Ilhéus reaches about 28°C and drops to 25°C overnight. The warmest of the three months is February, the coolest December.
Ilhéus weather by month
How the three summer months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 28° / 25° | 95 | 20.4 | 12.8 | 4.9 |
| Feb | 28° / 25° | 81 | 19.4 | 12.5 | 4.5 |
| Mar | 28° / 25° | 116 | 23.1 | 12.1 | 4.4 |
| Apr | 28° / 24° | 131 | 23.1 | 11.7 | 4.6 |
| May | 26° / 23° | 110 | 19.1 | 11.3 | 5.3 |
| Jun | 25° / 22° | 98 | 19.4 | 11.1 | 5.5 |
| Jul | 25° / 21° | 95 | 20.1 | 11.2 | 5.6 |
| Aug | 25° / 21° | 70 | 17.7 | 11.5 | 5.9 |
| Sep | 25° / 22° | 61 | 15.1 | 11.9 | 6.2 |
| Oct | 26° / 23° | 83 | 16.1 | 12.3 | 5.9 |
| Nov | 27° / 24° | 125 | 17.9 | 12.7 | 5.2 |
| Dec | 28° / 25° | 110 | 17.9 | 12.9 | 5.3 |
Cloud cover in Summer
The sky is clear or mostly clear about 35% of the time across summer.
Chance of precipitation in Summer
Ilhéus gets around 285 mm of rain over 58 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 12 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 48 min in early December to 12 h 18 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 6.1 kWh/m².
Is summer a good time to visit Ilhéus?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Ilhéus for sightseeing.
What to pack for Ilhéus in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Ilhéus sees daytime highs around 28°C and nights near 25°C. Pack light clothes, rain gear and sun protection. About 58 days see rain.
Sea temperature near Ilhéus in Summer
The nearest coast averages about 28°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 19 km away) is warmest in March at about 28°C and coldest in August near 25°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 28 | 28 | 28 | 28 | 27 | 26 | 26 | 25 | 25 | 26 | 27 | 27 |
| Comfort | Warm | Tropical | Tropical | Tropical | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Warm |
| Feb | 28 | Tropical |
| Mar | 28 | Tropical |
| Apr | 28 | Tropical |
| May | 27 | Warm |
| Jun | 26 | Warm |
| Jul | 26 | Warm |
| Aug | 25 | Warm |
| Sep | 25 | Warm |
| Oct | 26 | Warm |
| Nov | 27 | Warm |
| Dec | 27 | Warm |
UV index in Ilhéus in Summer
Clear-sky midday UV across summer averages around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Ilhéus peaks around February 18 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 8 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 13 | 15 | 14 | 12 | 9 | 8 | 8 | 9 | 11 | 13 | 14 | 13 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 15 | Extreme |
| Mar | 14 | Extreme |
| Apr | 12 | Extreme |
| May | 9 | Very high |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 9 | Very high |
| Sep | 11 | Extreme |
| Oct | 13 | Extreme |
| Nov | 14 | Extreme |
| Dec | 13 | Extreme |
Where is Ilhéus?
Ilhéus sits at 14.8°S, 39.0°W, in Brazil. The nearest listed city is Itabuna, 27 km away.
Topography around Ilhéus
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ilhéus.
Within 3 km, the terrain around Ilhéus has only modest variations in elevation — a maximum elevation change of 72 m around an average of 7 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 181 m; within 80 km, large variations in elevation — a maximum elevation change of 1,034 m.
The land around Ilhéus is covered by water (55%) and artificial surfaces (22%) within 3 km, water (54%) and trees (40%) within 16 km, and trees (51%) and water (32%) within 80 km.
Brazil travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / N
- 127 / 220 V · 60 Hz
- Prices
- ≈ 46% of US
- price level, 2025
- GDP per capita
- $10,713
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 89%
- of population, 2024
- Homicide rate
- 19.3
- per 100k, 2023
- Road deaths
- 16
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 482
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Ilhéus (-14.7991°, -39.0323°), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.