Barra de São Francisco in Summer
In summer (December, January and February), Barra de São Francisco sees average daytime highs around 30°C and overnight lows near 21°C, with 406 mm of rain over about 40 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Over the season highs climb from about 29°C in early December to 31°C by late February. The sky is clear or mostly clear about 18% of the time across summer, and the air most often feels muggy.
Summer is Barra de São Francisco's weakest season of the year to visit on our travel score. For the whole year in context, see Barra de São Francisco's year-round climate.
- Avg daytime high
- 30°C
- warmest season of the year
- Avg overnight low
- 21°C
- Rainfall
- 406 mm
- 40 wet days
- Avg wind
- 8 km/h
- Travel score
- 4.3
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Barra de São Francisco in Summer
Over the season highs climb from about 29°C in early December to 31°C by late February.
A typical summer day in Barra de São Francisco reaches about 30°C and drops to 21°C overnight. The warmest of the three months is February, the coolest December.
How summer really feels in Barra de São Francisco
Once humidity and wind are folded in, summer brings about 74 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.
Barra de São Francisco 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 | 30° / 21° | 134 | 12.9 | 13 | 4.3 |
| Feb | 31° / 21° | 82 | 9.9 | 12.6 | 4.3 |
| Mar | 30° / 21° | 104 | 13.4 | 12.1 | 4.3 |
| Apr | 29° / 20° | 60 | 10.6 | 11.6 | 5.3 |
| May | 27° / 18° | 26 | 6.3 | 11.1 | 6.8 |
| Jun | 26° / 17° | 15 | 4.2 | 10.9 | 7.5 |
| Jul | 26° / 16° | 14 | 4.7 | 11 | 7.5 |
| Aug | 27° / 16° | 13 | 4.6 | 11.4 | 7.4 |
| Sep | 28° / 18° | 23 | 5.3 | 11.9 | 6.7 |
| Oct | 29° / 19° | 77 | 10 | 12.4 | 5.4 |
| Nov | 29° / 20° | 173 | 15.8 | 12.9 | 4.6 |
| Dec | 30° / 21° | 190 | 16.7 | 13.1 | 4.2 |
Cloud cover in Summer
The sky is clear or mostly clear about 18% of the time across summer.
Chance of precipitation in Summer
Barra de São Francisco gets around 406 mm of rain over 40 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 8 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 hours in early December to 12 h 24 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 5.8 kWh/m².
Hazard calendar for Barra de São Francisco
In summer, Barra de São Francisco overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
Barra de São Francisco's monsoon runs November–January, when most of the year's rain falls.
Is summer a good time to visit Barra de São Francisco?
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 de São Francisco for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Barra de São Francisco in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Barra de São Francisco sees daytime highs around 30°C and nights near 21°C. Pack light clothes, rain gear and sun protection. About 40 days see rain.
UV index in Barra de São Francisco 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 de São Francisco peaks around February 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 7 (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) | 14 | 15 | 13 | 10 | 8 | 7 | 7 | 9 | 11 | 12 | 14 | 13 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | High | Very high | Very high | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 15 | Extreme |
| Mar | 13 | Extreme |
| Apr | 10 | Extreme |
| May | 8 | Very high |
| Jun | 7 | High |
| Jul | 7 | Very high |
| Aug | 9 | Very high |
| Sep | 11 | Extreme |
| Oct | 12 | Extreme |
| Nov | 14 | Extreme |
| Dec | 13 | Extreme |
Where is Barra de São Francisco?
Barra de São Francisco sits at 18.8°S, 40.9°W, 197 m above sea level, in Brazil. The nearest listed city is Mantena, 10 km away.
Topography around Barra de São Francisco
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Barra de São Francisco.
Within 3 km, the terrain around Barra de São Francisco has significant variations in elevation — a maximum elevation change of 335 m around an average of 251 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 732 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,584 m.
The land around Barra de São Francisco is covered by grassland (57%) and trees (32%) within 3 km, grassland (69%) and trees (29%) within 16 km, and grassland (67%) and trees (33%) 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 de São Francisco (-18.755°, -40.8908°, elevation 197 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.