São Sepé in Summer
In summer (December, January and February), São Sepé sees average daytime highs around 30°C and overnight lows near 19°C, with 373 mm of rain over about 34 wet days across the season. It is the warmest season of the year and the 3rd-wettest season.
Across summer, daytime highs hold fairly steady around 30°C. The sky is clear or mostly clear about 38% of the time across summer, and the air most often feels muggy.
Summer is São Sepé's weakest season of the year to visit on our travel score. For the whole year in context, see São Sepé's year-round climate.
- Avg daytime high
- 30°C
- warmest season of the year
- Avg overnight low
- 19°C
- Rainfall
- 373 mm
- 34 wet days
- Avg wind
- 12 km/h
- Travel score
- 4.9
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in São Sepé in Summer
Across summer, daytime highs hold fairly steady around 30°C.
A typical summer day in São Sepé reaches about 30°C and drops to 19°C overnight. The warmest of the three months is January, the coolest December.
São Sepé 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° / 20° | 127 | 12.2 | 13.7 | 4.6 |
| Feb | 30° / 20° | 118 | 11.6 | 13.1 | 4.8 |
| Mar | 29° / 18° | 113 | 9.9 | 12.2 | 5.9 |
| Apr | 25° / 15° | 136 | 9 | 11.3 | 7.0 |
| May | 21° / 12° | 120 | 8.7 | 10.5 | 6.7 |
| Jun | 19° / 10° | 137 | 9.9 | 10.1 | 6.0 |
| Jul | 18° / 9° | 140 | 10 | 10.3 | 6.0 |
| Aug | 20° / 10° | 126 | 9.4 | 10.9 | 6.5 |
| Sep | 22° / 12° | 159 | 10.6 | 11.8 | 6.4 |
| Oct | 24° / 14° | 191 | 11.6 | 12.7 | 6.6 |
| Nov | 27° / 16° | 125 | 9.4 | 13.5 | 6.5 |
| Dec | 30° / 18° | 128 | 10.4 | 13.9 | 5.2 |
Cloud cover in Summer
The sky is clear or mostly clear about 38% of the time across summer.
Chance of precipitation in Summer
São Sepé gets around 373 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 6.4 kWh/m².
Is summer a good time to visit São Sepé?
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 Sepé for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for São Sepé in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, São Sepé sees daytime highs around 30°C and nights near 19°C. Pack light clothes and sun protection. Worth having: rain gear. About 34 days see rain.
UV index in São Sepé 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 Sepé peaks around January 18 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 — in 11 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 13 | 13 | 10 | 7 | 4 | 3 | 4 | 5 | 8 | 7 | 11 | 12 |
| Level | Extreme | Extreme | Extreme | Very high | Moderate | Moderate | Moderate | Moderate | Very high | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 13 | Extreme |
| Mar | 10 | Extreme |
| Apr | 7 | Very high |
| May | 4 | Moderate |
| Jun | 3 | Moderate |
| Jul | 4 | Moderate |
| Aug | 5 | Moderate |
| Sep | 8 | Very high |
| Oct | 7 | Very high |
| Nov | 11 | Extreme |
| Dec | 12 | Extreme |
Where is São Sepé?
São Sepé sits at 30.2°S, 53.6°W, 96 m above sea level, in Brazil. The nearest listed city is Caçapava do Sul, 40 km away.
Topography around São Sepé
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Sepé.
Within 3 km, the terrain around São Sepé has only modest variations in elevation — a maximum elevation change of 101 m around an average of 89 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 261 m; within 80 km, significant variations in elevation — a maximum elevation change of 587 m.
The land around São Sepé is covered by cropland (39%) and trees (27%) within 3 km, cropland (55%) and grassland (25%) within 16 km, and cropland (38%), grassland (33%) and trees (28%) 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 Sepé (-30.1606°, -53.5653°, elevation 96 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.