São Lourenço do Oeste in Summer
In summer (December, January and February), São Lourenço do Oeste sees average daytime highs around 27°C and overnight lows near 18°C, with 519 mm of rain over about 56 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 27°C. The sky is clear or mostly clear about 27% of the time across summer, and the air most often feels muggy.
Summer is São Lourenço do Oeste's weakest season of the year to visit on our travel score. For the whole year in context, see São Lourenço do Oeste's year-round climate.
- Avg daytime high
- 27°C
- warmest season of the year
- Avg overnight low
- 18°C
- Rainfall
- 519 mm
- 56 wet days
- Avg wind
- 10 km/h
- Travel score
- 5.1
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in São Lourenço do Oeste in Summer
Across summer, daytime highs hold fairly steady around 27°C.
A typical summer day in São Lourenço do Oeste reaches about 27°C and drops to 18°C overnight. The warmest of the three months is January, the coolest December.
São Lourenço do Oeste 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 | 28° / 18° | 173 | 19.6 | 13.5 | 5.0 |
| Feb | 27° / 18° | 164 | 18.3 | 12.9 | 5.0 |
| Mar | 27° / 17° | 145 | 14.7 | 12.2 | 5.9 |
| Apr | 24° / 14° | 124 | 10.9 | 11.4 | 6.8 |
| May | 21° / 11° | 142 | 10 | 10.7 | 6.5 |
| Jun | 20° / 10° | 149 | 10.1 | 10.4 | 6.3 |
| Jul | 20° / 9° | 125 | 9.1 | 10.5 | 6.5 |
| Aug | 22° / 11° | 102 | 7.9 | 11.1 | 7.2 |
| Sep | 23° / 13° | 177 | 11.3 | 11.8 | 6.8 |
| Oct | 25° / 15° | 212 | 15.4 | 12.6 | 6.0 |
| Nov | 26° / 16° | 158 | 13.9 | 13.3 | 6.1 |
| Dec | 27° / 17° | 182 | 17.7 | 13.6 | 5.4 |
Cloud cover in Summer
The sky is clear or mostly clear about 27% of the time across summer.
Chance of precipitation in Summer
São Lourenço do Oeste gets around 519 mm of rain over 56 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 10 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 30 min in early December to 12 h 36 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 6.0 kWh/m².
Is summer a good time to visit São Lourenço do Oeste?
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 Lourenço do Oeste for sightseeing.
What to pack for São Lourenço do Oeste in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, São Lourenço do Oeste sees daytime highs around 27°C and nights near 18°C. Pack light clothes, rain gear and sun protection. About 56 days see rain.
UV index in São Lourenço do Oeste 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 Lourenço do Oeste peaks around January 23 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (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) | 15 | 15 | 12 | 9 | 6 | 5 | 5 | 6 | 7 | 9 | 12 | 13 |
| Level | Extreme | Extreme | Extreme | Very high | High | High | Moderate | High | Very high | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 12 | Extreme |
| Apr | 9 | Very high |
| May | 6 | High |
| Jun | 5 | High |
| Jul | 5 | Moderate |
| Aug | 6 | High |
| Sep | 7 | Very high |
| Oct | 9 | Very high |
| Nov | 12 | Extreme |
| Dec | 13 | Extreme |
Air quality in São Lourenço do Oeste in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in São Lourenço do Oeste is worst in September — around 18 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (March, 6 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 6 | 6 | 6 | 7 | 7 | 7 | 8 | 13 | 18 | 11 | 8 | 6 |
| Level | Good | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 6 | Good |
| Feb | 6 | Good |
| Mar | 6 | Good |
| Apr | 7 | Good |
| May | 7 | Good |
| Jun | 7 | Good |
| Jul | 8 | Good |
| Aug | 13 | Moderate |
| Sep | 18 | Moderate |
| Oct | 11 | Good |
| Nov | 8 | Good |
| Dec | 6 | Good |
Where is São Lourenço do Oeste?
São Lourenço do Oeste sits at 26.4°S, 52.9°W, 881 m above sea level, in Brazil. The nearest listed city is Pato Branco, 23 km away.
Topography around São Lourenço do Oeste
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Lourenço do Oeste.
Within 3 km, the terrain around São Lourenço do Oeste has only modest variations in elevation — a maximum elevation change of 228 m around an average of 860 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 546 m; within 80 km, large variations in elevation — a maximum elevation change of 972 m.
The land around São Lourenço do Oeste is covered by trees (36%) and cropland (25%) within 3 km, trees (42%) and cropland (39%) within 16 km, and trees (45%) and cropland (39%) 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 Lourenço do Oeste (-26.3592°, -52.8511°, elevation 881 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.