Tomé-Açu in Summer
In summer (December, January and February), Tomé-Açu sees average daytime highs around 32°C and overnight lows near 23°C, with 639 mm of rain over about 67 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 34°C in early December to 31°C by late February. The sky is clear or mostly clear about 4% of the time across summer, and the air most often feels oppressive.
Summer is Tomé-Açu's 3rd-best season to visit on our travel score. For the whole year in context, see Tomé-Açu's year-round climate.
- Avg daytime high
- 32°C
- 3rd-warmest season
- Avg overnight low
- 23°C
- Rainfall
- 639 mm
- 67 wet days
- Avg wind
- 6 km/h
- Travel score
- 2.6
- 3rd-best season
- Months
- Dec · Jan · Feb
Temperature in Tomé-Açu in Summer
Over the season highs ease from about 34°C in early December to 31°C by late February.
A typical summer day in Tomé-Açu reaches about 32°C and drops to 23°C overnight. The warmest of the three months is December, the coolest February.
How summer really feels in Tomé-Açu
Once humidity and wind are folded in, summer brings about 90 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Tomé-Açu 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 | 32° / 23° | 229 | 25.5 | 12.1 | 2.6 |
| Feb | 31° / 23° | 296 | 25.5 | 12.1 | 2.5 |
| Mar | 31° / 23° | 382 | 29.6 | 12 | 2.5 |
| Apr | 31° / 23° | 364 | 28.7 | 11.9 | 2.5 |
| May | 31° / 23° | 217 | 25 | 11.9 | 2.8 |
| Jun | 32° / 22° | 73 | 15.4 | 11.9 | 3.6 |
| Jul | 33° / 22° | 39 | 9.4 | 11.9 | 3.8 |
| Aug | 34° / 23° | 19 | 5.2 | 11.9 | 3.3 |
| Sep | 35° / 23° | 18 | 4.4 | 12 | 3.0 |
| Oct | 35° / 23° | 28 | 6.4 | 12.1 | 2.9 |
| Nov | 34° / 24° | 56 | 8.5 | 12.1 | 2.9 |
| Dec | 33° / 23° | 114 | 16.3 | 12.1 | 2.8 |
Cloud cover in Summer
The sky is clear or mostly clear about 4% of the time across summer.
Chance of precipitation in Summer
Tomé-Açu gets around 639 mm of rain over 67 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 6 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 06 min in early December to 12 h 06 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 4.8 kWh/m².
Hazard calendar for Tomé-Açu
In summer, Tomé-Açu overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
Tomé-Açu's monsoon runs January–May, when most of the year's rain falls.
Is summer a good time to visit Tomé-Açu?
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 weaker month for outdoor sightseeing in Tomé-Açu.
What to pack for Tomé-Açu in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Tomé-Açu sees daytime highs around 32°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 67 days see rain.
UV index in Tomé-Açu in Summer
Clear-sky midday UV across summer averages around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Tomé-Açu peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 10 at about 10 (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 | 14 | 15 | 14 | 12 | 10 | 10 | 10 | 12 | 11 | 10 | 10 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 14 | Extreme |
| Mar | 15 | Extreme |
| Apr | 14 | Extreme |
| May | 12 | Extreme |
| Jun | 10 | Extreme |
| Jul | 10 | Extreme |
| Aug | 10 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 10 | Very high |
| Dec | 10 | Very high |
Air quality in Tomé-Açu in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Tomé-Açu is worst in November — around 32 µg/m³ PM2.5 (moderate), about 3.4× the cleanest month (June, 9 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 17 | 18 | 18 | 15 | 10 | 9 | 11 | 14 | 16 | 19 | 32 | 27 |
| Level | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 17 | Moderate |
| Feb | 18 | Moderate |
| Mar | 18 | Moderate |
| Apr | 15 | Moderate |
| May | 10 | Good |
| Jun | 9 | Good |
| Jul | 11 | Good |
| Aug | 14 | Moderate |
| Sep | 16 | Moderate |
| Oct | 19 | Moderate |
| Nov | 32 | Moderate |
| Dec | 27 | Moderate |
Where is Tomé-Açu?
Tomé-Açu sits at 2.4°S, 48.2°W, 21 m above sea level, in Brazil. The nearest listed city is Acará, 51 km away.
Topography around Tomé-Açu
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tomé-Açu.
Within 3 km, the terrain around Tomé-Açu has only modest variations in elevation — a maximum elevation change of 57 m around an average of 22 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 73 m; within 80 km, only modest variations in elevation — a maximum elevation change of 133 m.
The land around Tomé-Açu is covered by trees (64%) and grassland (28%) within 3 km, trees (67%) and grassland (32%) within 16 km, and trees (80%) and grassland (20%) 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 Tomé-Açu (-2.4189°, -48.1522°, elevation 21 m), 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.