Barra Mansa in Summer
In summer (December, January and February), Barra Mansa sees average daytime highs around 29°C and overnight lows near 20°C, with 736 mm of rain over about 61 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 29°C. The sky is clear or mostly clear about 16% of the time across summer, and the air most often feels muggy.
Summer is Barra Mansa's weakest season of the year to visit on our travel score. For the whole year in context, see Barra Mansa's year-round climate.
- Avg daytime high
- 29°C
- warmest season of the year
- Avg overnight low
- 20°C
- Rainfall
- 736 mm
- 61 wet days
- Avg wind
- 5 km/h
- Travel score
- 4.2
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Barra Mansa in Summer
Across summer, daytime highs hold fairly steady around 29°C.
A typical summer day in Barra Mansa reaches about 29°C and drops to 20°C overnight. The warmest of the three months is February, the coolest December.
Barra Mansa 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 | 29° / 20° | 282 | 22.1 | 13.2 | 3.9 |
| Feb | 29° / 20° | 205 | 17.5 | 12.8 | 4.2 |
| Mar | 28° / 19° | 194 | 20.2 | 12.2 | 4.6 |
| Apr | 27° / 18° | 86 | 11.7 | 11.5 | 6.2 |
| May | 25° / 15° | 48 | 8.4 | 10.9 | 7.2 |
| Jun | 24° / 14° | 27 | 5.3 | 10.6 | 7.9 |
| Jul | 24° / 13° | 28 | 5.3 | 10.8 | 8.0 |
| Aug | 25° / 14° | 27 | 5.3 | 11.2 | 7.8 |
| Sep | 26° / 16° | 69 | 10.7 | 11.9 | 6.6 |
| Oct | 27° / 17° | 117 | 14.7 | 12.5 | 5.7 |
| Nov | 27° / 18° | 204 | 19 | 13.1 | 4.9 |
| Dec | 28° / 20° | 249 | 21.3 | 13.4 | 4.4 |
Cloud cover in Summer
The sky is clear or mostly clear about 16% of the time across summer.
Chance of precipitation in Summer
Barra Mansa gets around 736 mm of rain over 61 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 5 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 18 min in early December to 12 h 30 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 5.5 kWh/m².
Hazard calendar for Barra Mansa
In summer, Barra Mansa overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
Barra Mansa's monsoon runs November–March, when most of the year's rain falls.
Is summer a good time to visit Barra Mansa?
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 Barra Mansa for sightseeing.
What to pack for Barra Mansa in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Barra Mansa sees daytime highs around 29°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 61 days see rain.
Sea temperature near Barra Mansa in Summer
The nearest coast averages about 26°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 68 km away) is warmest in February at about 27°C and coldest in August near 21°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) | 27 | 27 | 27 | 26 | 24 | 23 | 22 | 21 | 22 | 23 | 23 | 25 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 27 | Warm |
| Apr | 26 | Warm |
| May | 24 | Warm |
| Jun | 23 | Refreshing |
| Jul | 22 | Refreshing |
| Aug | 21 | Refreshing |
| Sep | 22 | Refreshing |
| Oct | 23 | Refreshing |
| Nov | 23 | Refreshing |
| Dec | 25 | Warm |
UV index in Barra Mansa 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 Barra Mansa peaks around January 24 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 6 (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) | 15 | 15 | 12 | 10 | 7 | 6 | 5 | 8 | 7 | 12 | 14 | 14 |
| Level | Extreme | Extreme | Extreme | Very high | High | High | High | Very high | High | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 12 | Extreme |
| Apr | 10 | Very high |
| May | 7 | High |
| Jun | 6 | High |
| Jul | 5 | High |
| Aug | 8 | Very high |
| Sep | 7 | High |
| Oct | 12 | Extreme |
| Nov | 14 | Extreme |
| Dec | 14 | Extreme |
Air quality in Barra Mansa 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 Barra Mansa is worst in September — around 33 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 15 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) | 16 | 16 | 17 | 19 | 24 | 29 | 31 | 27 | 33 | 20 | 17 | 15 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 16 | Moderate |
| Feb | 16 | Moderate |
| Mar | 17 | Moderate |
| Apr | 19 | Moderate |
| May | 24 | Moderate |
| Jun | 29 | Moderate |
| Jul | 31 | Moderate |
| Aug | 27 | Moderate |
| Sep | 33 | Moderate |
| Oct | 20 | Moderate |
| Nov | 17 | Moderate |
| Dec | 15 | Moderate |
Where is Barra Mansa?
Barra Mansa sits at 22.5°S, 44.2°W, 380 m above sea level, in Brazil. The nearest listed city is Volta Redonda, 7.0 km away.
Topography around Barra Mansa
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Barra Mansa.
Within 3 km, the terrain around Barra Mansa has only modest variations in elevation — a maximum elevation change of 185 m around an average of 427 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 415 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,761 m.
The land around Barra Mansa is covered by trees (36%), grassland (31%) and artificial surfaces (30%) within 3 km, grassland (59%) and trees (33%) within 16 km, and trees (48%) and grassland (36%) 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 Barra Mansa (-22.5442°, -44.1714°, elevation 380 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.