Rio Grande da Serra in Spring
In spring (September, October and November), Rio Grande da Serra sees average daytime highs around 24°C and overnight lows near 16°C, with 496 mm of rain over about 52 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Over the season highs climb from about 24°C in early September to 26°C by late November. The sky is clear or mostly clear about 16% of the time across spring, and the air most often feels humid.
Spring is Rio Grande da Serra's 2nd-best season to visit on our travel score. For the whole year in context, see Rio Grande da Serra's year-round climate.
- Avg daytime high
- 24°C
- 3rd-warmest season
- Avg overnight low
- 16°C
- Rainfall
- 496 mm
- 52 wet days
- Avg wind
- 9 km/h
- Travel score
- 5.5
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Rio Grande da Serra in Spring
Over the season highs climb from about 24°C in early September to 26°C by late November.
A typical spring day in Rio Grande da Serra reaches about 24°C and drops to 16°C overnight. The warmest of the three months is November, the coolest September.
Rio Grande da Serra 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 | 27° / 20° | 337 | 26.6 | 13.3 | 3.9 |
| Feb | 28° / 20° | 275 | 23 | 12.8 | 4.0 |
| Mar | 27° / 19° | 271 | 24.6 | 12.2 | 4.3 |
| Apr | 25° / 18° | 114 | 15.8 | 11.5 | 5.7 |
| May | 23° / 15° | 96 | 12.1 | 10.9 | 6.4 |
| Jun | 22° / 14° | 70 | 8.4 | 10.6 | 7.0 |
| Jul | 22° / 13° | 84 | 8.3 | 10.7 | 7.1 |
| Aug | 23° / 14° | 68 | 8.8 | 11.2 | 7.1 |
| Sep | 24° / 15° | 129 | 13.9 | 11.9 | 6.2 |
| Oct | 25° / 17° | 157 | 17.8 | 12.6 | 5.4 |
| Nov | 25° / 18° | 209 | 20.7 | 13.1 | 4.9 |
| Dec | 27° / 19° | 251 | 23.9 | 13.4 | 4.3 |
Cloud cover in Spring
The sky is clear or mostly clear about 16% of the time across spring.
Chance of precipitation in Spring
Rio Grande da Serra gets around 496 mm of rain over 52 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 9 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 30 min in early September to 13 h 18 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 5.0 kWh/m².
Hazard calendar for Rio Grande da Serra
In spring, Rio Grande da Serra overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Rio Grande da Serra's rainy season runs October–March, when most of the year's rain falls.
Is spring a good time to visit Rio Grande da Serra?
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 Rio Grande da Serra for sightseeing.
What to pack for Rio Grande da Serra in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Rio Grande da Serra sees daytime highs around 24°C and nights near 16°C. Pack rain gear. Worth having: light clothes and sun protection. About 52 days see rain.
Sea temperature near Rio Grande da Serra in Spring
The nearest coast averages about 22°C across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 31 km away) is warmest in February at about 27°C and coldest in August near 21°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 27 | 27 | 27 | 26 | 24 | 22 | 21 | 21 | 21 | 22 | 23 | 25 |
| Comfort | Warm | Warm | Warm | Warm | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 27 | Warm |
| Apr | 26 | Warm |
| May | 24 | Refreshing |
| Jun | 22 | Refreshing |
| Jul | 21 | Refreshing |
| Aug | 21 | Refreshing |
| Sep | 21 | Refreshing |
| Oct | 22 | Refreshing |
| Nov | 23 | Refreshing |
| Dec | 25 | Warm |
UV index in Rio Grande da Serra in Spring
Clear-sky midday UV across spring averages around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Rio Grande da Serra peaks around February 8 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 14 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) | 14 | 15 | 10 | 9 | 7 | 6 | 5 | 7 | 8 | 11 | 12 | 14 |
| Level | Extreme | Extreme | Extreme | Very high | High | High | Moderate | Very high | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 15 | Extreme |
| Mar | 10 | Extreme |
| Apr | 9 | Very high |
| May | 7 | High |
| Jun | 6 | High |
| Jul | 5 | Moderate |
| Aug | 7 | Very high |
| Sep | 8 | Very high |
| Oct | 11 | Extreme |
| Nov | 12 | Extreme |
| Dec | 14 | Extreme |
Air quality in Rio Grande da Serra 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 Rio Grande da Serra is worst in July — around 52 µg/m³ PM2.5 (poor), about 2.1× the cleanest month (February, 24 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) | 25 | 24 | 26 | 28 | 36 | 49 | 52 | 47 | 41 | 31 | 25 | 26 |
| Level | Moderate | Moderate | Moderate | Moderate | Poor | Poor | Poor | Poor | Poor | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 25 | Moderate |
| Feb | 24 | Moderate |
| Mar | 26 | Moderate |
| Apr | 28 | Moderate |
| May | 36 | Poor |
| Jun | 49 | Poor |
| Jul | 52 | Poor |
| Aug | 47 | Poor |
| Sep | 41 | Poor |
| Oct | 31 | Moderate |
| Nov | 25 | Moderate |
| Dec | 26 | Moderate |
Where is Rio Grande da Serra?
Rio Grande da Serra sits at 23.7°S, 46.4°W, 777 m above sea level, in Brazil. The nearest listed city is Ribeirão Pires, 4.0 km away.
Topography around Rio Grande da Serra
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Rio Grande da Serra.
Within 3 km, the terrain around Rio Grande da Serra has only modest variations in elevation — a maximum elevation change of 124 m around an average of 780 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,172 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,434 m.
The land around Rio Grande da Serra is covered by trees (73%) within 3 km, trees (68%) within 16 km, and trees (47%) and water (31%) 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 Rio Grande da Serra (-23.7442°, -46.3983°, elevation 777 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.