Mutum in Summer
In summer (December, January and February), Mutum sees average daytime highs around 30°C and overnight lows near 21°C, with 442 mm of rain over about 39 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 29°C in early December to 31°C by late February. The sky is clear or mostly clear about 15% of the time across summer, and the air most often feels muggy.
Summer is Mutum's weakest season of the year to visit on our travel score. For the whole year in context, see Mutum's year-round climate.
- Avg daytime high
- 30°C
- warmest season of the year
- Avg overnight low
- 21°C
- Rainfall
- 442 mm
- 39 wet days
- Avg wind
- 6 km/h
- Travel score
- 4.3
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Mutum in Summer
Over the season highs climb from about 29°C in early December to 31°C by late February.
A typical summer day in Mutum reaches about 30°C and drops to 21°C overnight. The warmest of the three months is February, the coolest December.
How summer really feels in Mutum
Once humidity and wind are folded in, summer brings about 67 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Mutum 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 | 30° / 21° | 147 | 12.9 | 13.1 | 4.3 |
| Feb | 31° / 21° | 80 | 9.3 | 12.7 | 4.4 |
| Mar | 31° / 21° | 108 | 12.6 | 12.1 | 4.4 |
| Apr | 29° / 19° | 51 | 8.5 | 11.6 | 5.5 |
| May | 27° / 17° | 24 | 4.1 | 11.1 | 7.2 |
| Jun | 26° / 16° | 10 | 2.1 | 10.8 | 7.8 |
| Jul | 26° / 15° | 8 | 2.1 | 10.9 | 7.9 |
| Aug | 27° / 16° | 10 | 2.8 | 11.3 | 7.6 |
| Sep | 28° / 17° | 29 | 5.1 | 11.9 | 6.5 |
| Oct | 29° / 19° | 78 | 9.2 | 12.5 | 5.3 |
| Nov | 29° / 20° | 166 | 15.4 | 12.9 | 4.6 |
| Dec | 30° / 21° | 216 | 17 | 13.2 | 4.2 |
Cloud cover in Summer
The sky is clear or mostly clear about 15% of the time across summer.
Chance of precipitation in Summer
Mutum gets around 442 mm of rain over 39 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 6 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 06 min in early December to 12 h 24 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 5.7 kWh/m².
Hazard calendar for Mutum
In summer, Mutum overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
Mutum's monsoon runs November–January, when most of the year's rain falls.
Is summer a good time to visit Mutum?
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 Mutum for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Mutum in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Mutum sees daytime highs around 30°C and nights near 21°C. Pack light clothes, rain gear and sun protection. About 39 days see rain.
UV index in Mutum 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 Mutum peaks around February 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 7 (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 | 15 | 14 | 10 | 8 | 7 | 7 | 9 | 10 | 12 | 14 | 14 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | High | High | Very high | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 15 | Extreme |
| Mar | 14 | Extreme |
| Apr | 10 | Extreme |
| May | 8 | Very high |
| Jun | 7 | High |
| Jul | 7 | High |
| Aug | 9 | Very high |
| Sep | 10 | Extreme |
| Oct | 12 | Extreme |
| Nov | 14 | Extreme |
| Dec | 14 | Extreme |
Where is Mutum?
Mutum sits at 19.8°S, 41.4°W, 223 m above sea level, in Brazil. The nearest listed city is Ipanema, 29 km away.
Topography around Mutum
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Mutum.
Within 3 km, the terrain around Mutum has significant variations in elevation — a maximum elevation change of 323 m around an average of 265 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,154 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,805 m.
The land around Mutum is covered by grassland (61%) and trees (34%) within 3 km, grassland (60%) and trees (39%) within 16 km, and trees (53%) and grassland (46%) 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 Mutum (-19.8°, -41.4383°, elevation 223 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.