São Francisco in Summer
In summer (December, January and February), São Francisco sees average daytime highs around 31°C and overnight lows near 22°C, with 417 mm of rain over about 43 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 31°C. The sky is clear or mostly clear about 21% of the time across summer, and the air most often feels muggy.
Summer is São Francisco's 3rd-best season to visit on our travel score. For the whole year in context, see São Francisco's year-round climate.
- Avg daytime high
- 31°C
- 2nd-warmest season
- Avg overnight low
- 22°C
- Rainfall
- 417 mm
- 43 wet days
- Avg wind
- 7 km/h
- Travel score
- 3.9
- 3rd-best season
- Months
- Dec · Jan · Feb
Temperature in São Francisco in Summer
Across summer, daytime highs hold fairly steady around 31°C.
A typical summer day in São Francisco reaches about 31°C and drops to 22°C overnight. The warmest of the three months is February, the coolest December.
How summer really feels in São Francisco
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.
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 | 31° / 22° | 138 | 14.2 | 12.8 | 4.0 |
| Feb | 31° / 22° | 103 | 12 | 12.5 | 4.0 |
| Mar | 31° / 22° | 123 | 13.4 | 12.1 | 4.1 |
| Apr | 31° / 21° | 43 | 6.7 | 11.7 | 4.9 |
| May | 30° / 20° | 11 | 2.2 | 11.3 | 5.8 |
| Jun | 30° / 19° | 2 | 0.4 | 11.1 | 6.5 |
| Jul | 30° / 18° | 0 | 0 | 11.1 | 6.6 |
| Aug | 31° / 19° | 2 | 0.4 | 11.5 | 5.7 |
| Sep | 33° / 21° | 10 | 1.8 | 11.9 | 4.1 |
| Oct | 34° / 22° | 63 | 7.4 | 12.4 | 3.4 |
| Nov | 31° / 22° | 166 | 15.9 | 12.7 | 3.7 |
| Dec | 31° / 22° | 176 | 16.7 | 12.9 | 3.8 |
Cloud cover in Summer
The sky is clear or mostly clear about 21% of the time across summer.
Chance of precipitation in Summer
São Francisco gets around 417 mm of rain over 43 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 7 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 54 min 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 6.1 kWh/m².
Hazard calendar for São Francisco
In summer, São Francisco overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
São Francisco's rainy season runs November–March, when most of the year's rain falls.
Is summer a good time to visit 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 weaker month for outdoor sightseeing in São Francisco.
What to pack for São Francisco in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, São Francisco sees daytime highs around 31°C and nights near 22°C. Pack light clothes, rain gear and sun protection. About 43 days see rain.
UV index in 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 São Francisco peaks around February 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 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) | 14 | 15 | 14 | 12 | 9 | 8 | 8 | 10 | 12 | 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 | 14 | Extreme |
| Feb | 15 | Extreme |
| Mar | 14 | Extreme |
| Apr | 12 | Extreme |
| May | 9 | Very high |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 10 | Very high |
| Sep | 12 | Extreme |
| Oct | 13 | Extreme |
| Nov | 14 | Extreme |
| Dec | 13 | Extreme |
Where is São Francisco?
São Francisco sits at 15.9°S, 44.9°W, 465 m above sea level, in Brazil. The nearest listed city is Brasília de Minas, 54 km away.
Topography around São Francisco
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Francisco.
Within 3 km, the terrain around São Francisco has only modest variations in elevation — a maximum elevation change of 68 m around an average of 473 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 258 m; within 80 km, significant variations in elevation — a maximum elevation change of 474 m.
The land around São Francisco is covered by grassland (27%) and artificial surfaces (20%) within 3 km, shrubs (34%), grassland (28%) and trees (24%) within 16 km, and shrubs (49%), grassland (24%) and trees (23%) 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 São Francisco (-15.9486°, -44.8644°, elevation 465 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.