Cotia in Spring
In spring (September, October and November), Cotia sees average daytime highs around 25°C and overnight lows near 16°C, with 350 mm of rain over about 39 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Across spring, daytime highs hold fairly steady around 25°C. The sky is clear or mostly clear about 25% of the time across spring, and the air most often feels humid.
Spring is Cotia's 3rd-best season to visit on our travel score. For the whole year in context, see Cotia's year-round climate.
- Avg daytime high
- 25°C
- 2nd-warmest season
- Avg overnight low
- 16°C
- Rainfall
- 350 mm
- 39 wet days
- Avg wind
- 12 km/h
- Travel score
- 6.2
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Cotia in Spring
Across spring, daytime highs hold fairly steady around 25°C.
A typical spring day in Cotia reaches about 25°C and drops to 16°C overnight. The warmest of the three months is November, the coolest September.
Cotia 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° / 19° | 230 | 22.7 | 13.3 | 4.4 |
| Feb | 28° / 19° | 168 | 19.3 | 12.8 | 4.7 |
| Mar | 27° / 18° | 136 | 18.6 | 12.2 | 5.3 |
| Apr | 26° / 17° | 63 | 9.1 | 11.5 | 6.9 |
| May | 23° / 14° | 60 | 7 | 10.9 | 7.3 |
| Jun | 22° / 13° | 48 | 5.3 | 10.6 | 7.6 |
| Jul | 22° / 12° | 48 | 5 | 10.7 | 7.7 |
| Aug | 24° / 13° | 38 | 4.9 | 11.2 | 8.0 |
| Sep | 25° / 15° | 86 | 9.3 | 11.9 | 7.0 |
| Oct | 26° / 16° | 114 | 13.7 | 12.6 | 6.0 |
| Nov | 26° / 17° | 150 | 16.1 | 13.1 | 5.5 |
| Dec | 27° / 18° | 181 | 20.6 | 13.4 | 4.8 |
Cloud cover in Spring
The sky is clear or mostly clear about 25% of the time across spring.
Chance of precipitation in Spring
Cotia gets around 350 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 12 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 5.3 kWh/m².
Hazard calendar for Cotia
In spring, Cotia overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Cotia's rainy season runs October–March, when most of the year's rain falls.
Is spring a good time to visit Cotia?
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 Cotia for sightseeing.
What to pack for Cotia in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Cotia sees daytime highs around 25°C and nights near 16°C. Pack rain gear. Worth having: light clothes and sun protection. About 39 days see rain.
Sea temperature near Cotia 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 65 km away) is warmest in February at about 27°C and coldest in August near 20°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 | 20 | 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 | 20 | Refreshing |
| Sep | 21 | Refreshing |
| Oct | 22 | Refreshing |
| Nov | 23 | Refreshing |
| Dec | 25 | Warm |
UV index in Cotia 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 Cotia peaks around January 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 at about 5 (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 | 11 | 9 | 7 | 6 | 5 | 8 | 8 | 10 | 12 | 14 |
| Level | Extreme | Extreme | Extreme | Very high | High | High | Moderate | Very high | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 11 | Extreme |
| Apr | 9 | Very high |
| May | 7 | High |
| Jun | 6 | High |
| Jul | 5 | Moderate |
| Aug | 8 | Very high |
| Sep | 8 | Very high |
| Oct | 10 | Extreme |
| Nov | 12 | Extreme |
| Dec | 14 | Extreme |
Air quality in Cotia 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 Cotia is worst in July — around 38 µg/m³ PM2.5 (poor), about 2.1× the cleanest month (January, 18 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) | 18 | 20 | 22 | 26 | 31 | 35 | 38 | 36 | 35 | 25 | 18 | 18 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Poor | Poor | Poor | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 18 | Moderate |
| Feb | 20 | Moderate |
| Mar | 22 | Moderate |
| Apr | 26 | Moderate |
| May | 31 | Moderate |
| Jun | 35 | Poor |
| Jul | 38 | Poor |
| Aug | 36 | Poor |
| Sep | 35 | Poor |
| Oct | 25 | Moderate |
| Nov | 18 | Moderate |
| Dec | 18 | Moderate |
Where is Cotia?
Cotia sits at 23.6°S, 46.9°W, 801 m above sea level, in Brazil. The nearest listed city is Itapevi, 6.0 km away.
Topography around Cotia
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Cotia.
Within 3 km, the terrain around Cotia has only modest variations in elevation — a maximum elevation change of 245 m around an average of 824 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 396 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,433 m.
The land around Cotia is covered by trees (51%) and artificial surfaces (35%) within 3 km, trees (56%) and artificial surfaces (29%) within 16 km, and trees (59%) 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 Cotia (-23.6039°, -46.9192°, elevation 801 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.