Mangaratiba in Summer
In summer (December, January and February), Mangaratiba sees average daytime highs around 28°C and overnight lows near 23°C, with 660 mm of rain over about 59 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Over the season highs climb from about 26°C in early December to 28°C by late February. The sky is clear or mostly clear about 20% of the time across summer, and the air most often feels oppressive.
Summer is Mangaratiba's weakest season of the year to visit on our travel score. For the whole year in context, see Mangaratiba's year-round climate.
- Avg daytime high
- 28°C
- warmest season of the year
- Avg overnight low
- 23°C
- Rainfall
- 660 mm
- 59 wet days
- Avg wind
- 8 km/h
- Travel score
- 4.6
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Mangaratiba in Summer
Over the season highs climb from about 26°C in early December to 28°C by late February.
A typical summer day in Mangaratiba reaches about 28°C and drops to 23°C overnight. The warmest of the three months is February, the coolest December.
Mangaratiba 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° / 24° | 259 | 21.6 | 13.3 | 4.5 |
| Feb | 28° / 24° | 189 | 17.5 | 12.8 | 4.5 |
| Mar | 28° / 23° | 207 | 21 | 12.2 | 4.8 |
| Apr | 26° / 22° | 128 | 14.1 | 11.5 | 6.1 |
| May | 24° / 20° | 90 | 11.8 | 10.9 | 6.8 |
| Jun | 24° / 19° | 58 | 7.8 | 10.6 | 7.5 |
| Jul | 23° / 18° | 61 | 8 | 10.7 | 7.5 |
| Aug | 24° / 18° | 51 | 8 | 11.2 | 7.5 |
| Sep | 24° / 19° | 97 | 12.5 | 11.9 | 6.6 |
| Oct | 25° / 20° | 121 | 14.4 | 12.5 | 6.0 |
| Nov | 25° / 21° | 178 | 18.6 | 13.1 | 5.3 |
| Dec | 27° / 23° | 212 | 20.1 | 13.4 | 4.9 |
Cloud cover in Summer
The sky is clear or mostly clear about 20% of the time across summer.
Chance of precipitation in Summer
Mangaratiba gets around 660 mm of rain over 59 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 8 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 18 min in early December to 12 h 30 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 5.9 kWh/m².
Hazard calendar for Mangaratiba
In summer, Mangaratiba overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Mangaratiba's rainy season runs October–April, when most of the year's rain falls.
Is summer a good time to visit Mangaratiba?
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 Mangaratiba for sightseeing.
What to pack for Mangaratiba in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Mangaratiba sees daytime highs around 28°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 59 days see rain.
Sea temperature near Mangaratiba in Summer
The nearest coast averages about 25°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 25 km away) is warmest in February at about 26°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) | 26 | 26 | 26 | 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 | 26 | Warm |
| Feb | 26 | Warm |
| Mar | 26 | 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 Mangaratiba 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 Mangaratiba peaks around February 9 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 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) | 14 | 14 | 12 | 9 | 7 | 6 | 5 | 8 | 7 | 11 | 13 | 14 |
| Level | Extreme | Extreme | Extreme | Very high | High | High | High | Very high | High | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 14 | Extreme |
| Mar | 12 | Extreme |
| Apr | 9 | Very high |
| May | 7 | High |
| Jun | 6 | High |
| Jul | 5 | High |
| Aug | 8 | Very high |
| Sep | 7 | High |
| Oct | 11 | Extreme |
| Nov | 13 | Extreme |
| Dec | 14 | Extreme |
Air quality in Mangaratiba 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 Mangaratiba is worst in September — around 26 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (February, 13 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) | 14 | 13 | 14 | 15 | 20 | 24 | 26 | 23 | 26 | 17 | 14 | 13 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 14 | Moderate |
| Feb | 13 | Moderate |
| Mar | 14 | Moderate |
| Apr | 15 | Moderate |
| May | 20 | Moderate |
| Jun | 24 | Moderate |
| Jul | 26 | Moderate |
| Aug | 23 | Moderate |
| Sep | 26 | Moderate |
| Oct | 17 | Moderate |
| Nov | 14 | Moderate |
| Dec | 13 | Moderate |
Where is Mangaratiba?
Mangaratiba sits at 23.0°S, 44.0°W, 21 m above sea level, in Brazil. The nearest listed city is Rio Claro, 28 km away.
Topography around Mangaratiba
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Mangaratiba.
Within 3 km, the terrain around Mangaratiba has significant variations in elevation — a maximum elevation change of 444 m around an average of 58 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,664 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,049 m.
The land around Mangaratiba is covered by water (52%) and trees (35%) within 3 km, trees (51%) and water (40%) within 16 km, and trees (36%), water (36%) and grassland (22%) 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 Mangaratiba (-22.9597°, -44.0406°, elevation 21 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.