Boa Viagem in Summer
In summer (December, January and February), Boa Viagem sees average daytime highs around 32°C and overnight lows near 23°C, with 191 mm of rain over about 34 wet days across the season. It is the 2nd-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 27% of the time across summer, and the air most often feels muggy.
Summer is Boa Viagem's weakest season of the year to visit on our travel score. For the whole year in context, see Boa Viagem's year-round climate.
- Avg daytime high
- 32°C
- 2nd-warmest season
- Avg overnight low
- 23°C
- Rainfall
- 191 mm
- 34 wet days
- Avg wind
- 13 km/h
- Travel score
- 3.6
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Boa Viagem 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 Boa Viagem 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 Boa Viagem
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.
Boa Viagem 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° | 89 | 13.8 | 12.3 | 3.5 |
| Feb | 32° / 22° | 82 | 15.6 | 12.2 | 3.5 |
| Mar | 31° / 22° | 120 | 19.5 | 12 | 3.5 |
| Apr | 30° / 22° | 109 | 20 | 11.9 | 3.7 |
| May | 30° / 22° | 69 | 13.2 | 11.8 | 4.6 |
| Jun | 30° / 21° | 31 | 8.2 | 11.7 | 5.3 |
| Jul | 31° / 21° | 18 | 4.4 | 11.7 | 5.5 |
| Aug | 32° / 21° | 8 | 2 | 11.8 | 5.1 |
| Sep | 33° / 22° | 3 | 0.9 | 12 | 4.5 |
| Oct | 34° / 22° | 9 | 0.8 | 12.1 | 4.0 |
| Nov | 34° / 23° | 5 | 1.2 | 12.2 | 3.8 |
| Dec | 33° / 23° | 20 | 4.6 | 12.3 | 3.7 |
Cloud cover in Summer
The sky is clear or mostly clear about 27% of the time across summer.
Chance of precipitation in Summer
Boa Viagem gets around 191 mm of rain over 34 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 13 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 18 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 5.9 kWh/m².
Hazard calendar for Boa Viagem
In summer, Boa Viagem overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Boa Viagem's rainy season runs January–May, when most of the year's rain falls.
Is summer a good time to visit Boa Viagem?
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 Boa Viagem. The water and warmth also suit a beach or pool day.
What to pack for Boa Viagem in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Boa Viagem sees daytime highs around 32°C and nights near 23°C. Pack light clothes, rain gear and sun protection. About 34 days see rain.
UV index in Boa Viagem in Summer
Clear-sky midday UV across summer averages around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Boa Viagem peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 10 (extreme).
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 | 16 | 14 | 11 | 10 | 10 | 10 | 12 | 12 | 12 | 12 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 15 | Extreme |
| Mar | 16 | Extreme |
| Apr | 14 | Extreme |
| May | 11 | Extreme |
| Jun | 10 | Very high |
| Jul | 10 | Extreme |
| Aug | 10 | Extreme |
| Sep | 12 | Extreme |
| Oct | 12 | Extreme |
| Nov | 12 | Extreme |
| Dec | 12 | Extreme |
Where is Boa Viagem?
Boa Viagem sits at 5.1°S, 39.7°W, 288 m above sea level, in Brazil. The nearest listed city is Madalena, 35 km away.
Topography around Boa Viagem
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Boa Viagem.
Within 3 km, the terrain around Boa Viagem has only modest variations in elevation — a maximum elevation change of 64 m around an average of 292 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 437 m; within 80 km, large variations in elevation — a maximum elevation change of 982 m.
The land around Boa Viagem is covered by grassland (50%) and shrubs (37%) within 3 km, shrubs (74%) and grassland (24%) within 16 km, and shrubs (75%) and grassland (21%) 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 Boa Viagem (-5.1275°, -39.7322°, elevation 288 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.