Petrópolis in Spring
In spring (September, October and November), Petrópolis sees average daytime highs around 26°C and overnight lows near 18°C, with 476 mm of rain over about 46 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Across spring, daytime highs hold fairly steady around 26°C. The sky is clear or mostly clear about 20% of the time across spring, and the air most often feels muggy.
Spring is Petrópolis's 2nd-best season to visit on our travel score. For the whole year in context, see Petrópolis's year-round climate.
- Avg daytime high
- 26°C
- 3rd-warmest season
- Avg overnight low
- 18°C
- Rainfall
- 476 mm
- 46 wet days
- Avg wind
- 6 km/h
- Travel score
- 5.7
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Petrópolis in Spring
Across spring, daytime highs hold fairly steady around 26°C.
A typical spring day in Petrópolis reaches about 26°C and drops to 18°C overnight. The warmest of the three months is November, the coolest September.
How spring really feels in Petrópolis
Once humidity and wind are folded in, spring brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
spring sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Petrópolis 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° / 21° | 315 | 22.8 | 13.2 | 3.7 |
| Feb | 30° / 21° | 231 | 18.5 | 12.8 | 3.9 |
| Mar | 29° / 21° | 244 | 22.1 | 12.2 | 4.2 |
| Apr | 27° / 19° | 105 | 14.1 | 11.5 | 5.8 |
| May | 25° / 16° | 70 | 11 | 10.9 | 6.8 |
| Jun | 24° / 15° | 41 | 7 | 10.6 | 7.6 |
| Jul | 24° / 15° | 40 | 6.6 | 10.8 | 7.8 |
| Aug | 25° / 15° | 42 | 7.2 | 11.2 | 7.6 |
| Sep | 26° / 17° | 88 | 10.7 | 11.9 | 6.6 |
| Oct | 26° / 18° | 137 | 15.1 | 12.5 | 5.7 |
| Nov | 27° / 19° | 252 | 20 | 13.1 | 4.8 |
| Dec | 28° / 21° | 296 | 23.3 | 13.4 | 4.1 |
Cloud cover in Spring
The sky is clear or mostly clear about 20% of the time across spring.
Chance of precipitation in Spring
Petrópolis gets around 476 mm of rain over 46 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 6 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 4.8 kWh/m².
Hazard calendar for Petrópolis
In spring, Petrópolis overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Petrópolis's rainy season runs November–March, when most of the year's rain falls.
Is spring a good time to visit Petrópolis?
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 Petrópolis for sightseeing.
What to pack for Petrópolis in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Petrópolis sees daytime highs around 26°C and nights near 18°C. Pack rain gear. Worth having: light clothes and sun protection. About 46 days see rain.
Sea temperature near Petrópolis 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 69 km away) is warmest in March at about 25°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) | 25 | 25 | 25 | 25 | 24 | 23 | 22 | 21 | 21 | 22 | 23 | 24 |
| Comfort | Warm | Warm | Warm | Warm | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 25 | Warm |
| Feb | 25 | Warm |
| Mar | 25 | Warm |
| Apr | 25 | Warm |
| May | 24 | Refreshing |
| Jun | 23 | Refreshing |
| Jul | 22 | Refreshing |
| Aug | 21 | Refreshing |
| Sep | 21 | Refreshing |
| Oct | 22 | Refreshing |
| Nov | 23 | Refreshing |
| Dec | 24 | Warm |
UV index in Petrópolis 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 Petrópolis peaks around January 24 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 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 | 9 | 7 | 6 | 6 | 8 | 7 | 12 | 14 | 14 |
| Level | Extreme | Extreme | Extreme | Very high | High | High | High | Very high | High | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 13 | Extreme |
| Apr | 9 | Very high |
| May | 7 | High |
| Jun | 6 | High |
| Jul | 6 | High |
| Aug | 8 | Very high |
| Sep | 7 | High |
| Oct | 12 | Extreme |
| Nov | 14 | Extreme |
| Dec | 14 | Extreme |
Air quality in Petrópolis 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 Petrópolis is worst in July — around 38 µg/m³ PM2.5 (poor), about 2.0× the cleanest month (December, 19 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) | 19 | 19 | 21 | 24 | 31 | 36 | 38 | 32 | 37 | 24 | 20 | 19 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Poor | Moderate | Poor | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 19 | Moderate |
| Feb | 19 | Moderate |
| Mar | 21 | Moderate |
| Apr | 24 | Moderate |
| May | 31 | Moderate |
| Jun | 36 | Poor |
| Jul | 38 | Poor |
| Aug | 32 | Moderate |
| Sep | 37 | Poor |
| Oct | 24 | Moderate |
| Nov | 20 | Moderate |
| Dec | 19 | Moderate |
Where is Petrópolis?
Petrópolis sits at 22.5°S, 43.2°W, 819 m above sea level, in Brazil. The nearest listed city is Guapimirim, 21 km away.
Topography around Petrópolis
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Petrópolis.
Within 3 km, the terrain around Petrópolis has large variations in elevation — a maximum elevation change of 611 m around an average of 927 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,242 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,252 m.
The land around Petrópolis is covered by trees (70%) and artificial surfaces (23%) within 3 km, trees (81%) within 16 km, and trees (47%) and grassland (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 Petrópolis (-22.505°, -43.1786°, elevation 819 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.