São Francisco de Assis in Summer
In summer (December, January and February), São Francisco de Assis sees average daytime highs around 31°C and overnight lows near 20°C, with 417 mm of rain over about 34 wet days across the season. It is the warmest season of the year and the 2nd-wettest season.
Across summer, daytime highs hold fairly steady around 31°C. The sky is clear or mostly clear about 43% of the time across summer, and the air most often feels muggy.
Summer is São Francisco de Assis's weakest season of the year to visit on our travel score. For the whole year in context, see São Francisco de Assis's year-round climate.
- Avg daytime high
- 31°C
- warmest season of the year
- Avg overnight low
- 20°C
- Rainfall
- 417 mm
- 34 wet days
- Avg wind
- 12 km/h
- Travel score
- 4.6
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in São Francisco de Assis in Summer
Across summer, daytime highs hold fairly steady around 31°C.
A typical summer day in São Francisco de Assis reaches about 31°C and drops to 20°C overnight. The warmest of the three months is January, the coolest December.
How summer really feels in São Francisco de Assis
Once humidity and wind are folded in, summer brings about 42 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 de Assis 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° / 21° | 149 | 12.1 | 13.7 | 4.3 |
| Feb | 30° / 20° | 132 | 11.5 | 13.1 | 4.7 |
| Mar | 29° / 19° | 121 | 10.2 | 12.2 | 5.7 |
| Apr | 26° / 16° | 148 | 9.8 | 11.3 | 6.9 |
| May | 22° / 13° | 116 | 8.6 | 10.5 | 6.8 |
| Jun | 20° / 11° | 128 | 9.6 | 10.1 | 6.3 |
| Jul | 19° / 10° | 124 | 9.4 | 10.3 | 6.4 |
| Aug | 21° / 11° | 119 | 8.4 | 10.9 | 7.0 |
| Sep | 23° / 13° | 144 | 9.8 | 11.8 | 6.8 |
| Oct | 25° / 15° | 212 | 11.6 | 12.7 | 6.6 |
| Nov | 28° / 17° | 139 | 9.5 | 13.5 | 6.2 |
| Dec | 30° / 19° | 136 | 10.2 | 13.9 | 4.9 |
Cloud cover in Summer
The sky is clear or mostly clear about 43% of the time across summer.
Chance of precipitation in Summer
São Francisco de Assis gets around 417 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 12 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 48 min in early December to 12 h 42 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 6.5 kWh/m².
Is summer a good time to visit São Francisco de Assis?
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 São Francisco de Assis for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for São Francisco de Assis in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, São Francisco de Assis sees daytime highs around 31°C and nights near 20°C. Pack light clothes and sun protection. Worth having: rain gear. About 34 days see rain.
UV index in São Francisco de Assis 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 São Francisco de Assis peaks around January 19 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 3 (moderate).
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 | 13 | 10 | 8 | 4 | 3 | 4 | 5 | 8 | 5 | 11 | 12 |
| Level | Extreme | Extreme | Very high | Very high | Moderate | Moderate | Moderate | Moderate | Very high | High | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 13 | Extreme |
| Mar | 10 | Very high |
| Apr | 8 | Very high |
| May | 4 | Moderate |
| Jun | 3 | Moderate |
| Jul | 4 | Moderate |
| Aug | 5 | Moderate |
| Sep | 8 | Very high |
| Oct | 5 | High |
| Nov | 11 | Extreme |
| Dec | 12 | Extreme |
Where is São Francisco de Assis?
São Francisco de Assis sits at 29.6°S, 55.1°W, 134 m above sea level, in Brazil. The nearest listed city is Santiago, 47 km away.
Topography around São Francisco de Assis
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Francisco de Assis.
Within 3 km, the terrain around São Francisco de Assis has only modest variations in elevation — a maximum elevation change of 137 m around an average of 132 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 320 m; within 80 km, significant variations in elevation — a maximum elevation change of 398 m.
The land around São Francisco de Assis is covered by grassland (32%), cropland (31%) and trees (27%) within 3 km, grassland (37%), trees (31%) and cropland (30%) within 16 km, and grassland (49%) and cropland (32%) 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 de Assis (-29.5503°, -55.1311°, elevation 134 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.