São Carlos in Spring
In spring (September, October and November), São Carlos sees average daytime highs around 29°C and overnight lows near 18°C, with 343 mm of rain over about 39 wet days across the season. It is the warmest season of the year and the 2nd-wettest season.
Across spring, daytime highs hold fairly steady around 29°C. The sky is clear or mostly clear about 35% of the time across spring, and the air most often feels humid.
Spring is São Carlos's 3rd-best season to visit on our travel score. For the whole year in context, see São Carlos's year-round climate.
- Avg daytime high
- 29°C
- warmest season of the year
- Avg overnight low
- 18°C
- Rainfall
- 343 mm
- 39 wet days
- Avg wind
- 11 km/h
- Travel score
- 5.3
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in São Carlos in Spring
Across spring, daytime highs hold fairly steady around 29°C.
A typical spring day in São Carlos reaches about 29°C and drops to 18°C overnight. The warmest of the three months is October, the coolest September.
São Carlos weather by month
How the three spring months (September, October and November) 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 | 29° / 20° | 260 | 23.3 | 13.2 | 3.9 |
| Feb | 29° / 20° | 179 | 19.2 | 12.8 | 4.1 |
| Mar | 28° / 20° | 152 | 19.1 | 12.2 | 4.6 |
| Apr | 28° / 18° | 63 | 9.2 | 11.5 | 6.6 |
| May | 25° / 15° | 54 | 6.2 | 11 | 7.6 |
| Jun | 25° / 14° | 35 | 3.5 | 10.7 | 8.3 |
| Jul | 25° / 13° | 25 | 3.3 | 10.8 | 8.4 |
| Aug | 27° / 14° | 26 | 3.5 | 11.2 | 7.9 |
| Sep | 29° / 16° | 65 | 8.2 | 11.9 | 6.1 |
| Oct | 29° / 18° | 114 | 13.3 | 12.5 | 5.0 |
| Nov | 29° / 19° | 165 | 17.1 | 13.1 | 4.7 |
| Dec | 28° / 20° | 213 | 22.7 | 13.3 | 4.0 |
Cloud cover in Spring
The sky is clear or mostly clear about 35% of the time across spring.
Chance of precipitation in Spring
São Carlos gets around 343 mm of rain over 39 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 11 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 36 min in early September to 13 h 12 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 5.8 kWh/m².
Hazard calendar for São Carlos
In spring, São Carlos overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
São Carlos's monsoon runs November–March, when most of the year's rain falls.
Is spring a good time to visit São Carlos?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a reasonable time to visit São Carlos for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for São Carlos in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, São Carlos sees daytime highs around 29°C and nights near 18°C. Pack light clothes and rain gear. Worth having: sun protection. About 39 days see rain.
UV index in São Carlos in Spring
Clear-sky midday UV across spring averages around 11 (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 Carlos peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 6 (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) | 15 | 15 | 13 | 10 | 7 | 6 | 6 | 8 | 9 | 11 | 13 | 14 |
| Level | Extreme | Extreme | Extreme | Very high | High | High | High | Very high | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 13 | Extreme |
| Apr | 10 | Very high |
| May | 7 | High |
| Jun | 6 | High |
| Jul | 6 | High |
| Aug | 8 | Very high |
| Sep | 9 | Very high |
| Oct | 11 | Extreme |
| Nov | 13 | Extreme |
| Dec | 14 | Extreme |
Air quality in São Carlos in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.
Air quality in São Carlos is worst in September — around 37 µg/m³ PM2.5 (poor), about 3.6× the cleanest month (November, 10 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) | 12 | 12 | 13 | 14 | 16 | 17 | 18 | 35 | 37 | 18 | 10 | 11 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Poor | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Good |
| Feb | 12 | Moderate |
| Mar | 13 | Moderate |
| Apr | 14 | Moderate |
| May | 16 | Moderate |
| Jun | 17 | Moderate |
| Jul | 18 | Moderate |
| Aug | 35 | Poor |
| Sep | 37 | Poor |
| Oct | 18 | Moderate |
| Nov | 10 | Good |
| Dec | 11 | Good |
Where is São Carlos?
São Carlos sits at 22.0°S, 47.9°W, 838 m above sea level, in Brazil. The nearest listed city is Ibaté, 13 km away.
Topography around São Carlos
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Carlos.
Within 3 km, the terrain around São Carlos has only modest variations in elevation — a maximum elevation change of 162 m around an average of 844 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 439 m; within 80 km, large variations in elevation — a maximum elevation change of 673 m.
The land around São Carlos is covered by artificial surfaces (74%) within 3 km, cropland (44%) and trees (35%) within 16 km, and cropland (53%) and trees (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 Carlos (-22.0175°, -47.8908°, elevation 838 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.