Cocos in Summer
In summer (December, January and February), Cocos sees average daytime highs around 31°C and overnight lows near 21°C, with 380 mm of rain over about 40 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 31°C. The sky is clear or mostly clear about 25% of the time across summer, and the air most often feels muggy.
Summer is Cocos's 3rd-best season to visit on our travel score. For the whole year in context, see Cocos's year-round climate.
- Avg daytime high
- 31°C
- 2nd-warmest season
- Avg overnight low
- 21°C
- Rainfall
- 380 mm
- 40 wet days
- Avg wind
- 7 km/h
- Travel score
- 4.2
- 3rd-best season
- Months
- Dec · Jan · Feb
Temperature in Cocos in Summer
Across summer, daytime highs hold fairly steady around 31°C.
A typical summer day in Cocos reaches about 31°C and drops to 21°C overnight. The warmest of the three months is February, the coolest December.
How summer really feels in Cocos
Once humidity and wind are folded in, summer brings about 72 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.
Cocos 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 | 31° / 21° | 130 | 13.1 | 12.7 | 4.3 |
| Feb | 31° / 21° | 98 | 11.4 | 12.5 | 4.3 |
| Mar | 31° / 21° | 127 | 12.7 | 12.1 | 4.4 |
| Apr | 31° / 21° | 53 | 6.8 | 11.7 | 5.1 |
| May | 30° / 20° | 8 | 1.7 | 11.4 | 5.9 |
| Jun | 29° / 18° | 2 | 0.3 | 11.2 | 6.8 |
| Jul | 29° / 18° | 0 | 0.1 | 11.2 | 7.0 |
| Aug | 31° / 18° | 1 | 0.2 | 11.5 | 6.1 |
| Sep | 33° / 20° | 7 | 1.2 | 11.9 | 4.6 |
| Oct | 33° / 22° | 61 | 6.6 | 12.3 | 3.7 |
| Nov | 31° / 22° | 165 | 15.2 | 12.7 | 3.8 |
| Dec | 30° / 21° | 152 | 15.5 | 12.8 | 4.1 |
Cloud cover in Summer
The sky is clear or mostly clear about 25% of the time across summer.
Chance of precipitation in Summer
Cocos gets around 380 mm of rain over 40 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 7 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 48 min in early December to 12 h 18 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 6.1 kWh/m².
Hazard calendar for Cocos
In summer, Cocos overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Cocos's rainy season runs November–March, when most of the year's rain falls.
Is summer a good time to visit Cocos?
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 Cocos for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Cocos in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Cocos sees daytime highs around 31°C and nights near 21°C. Pack light clothes, rain gear and sun protection. About 40 days see rain.
UV index in Cocos 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 Cocos peaks around February 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 8 (very 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 | 16 | 15 | 12 | 10 | 8 | 8 | 10 | 12 | 13 | 14 | 13 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 16 | Extreme |
| Mar | 15 | Extreme |
| Apr | 12 | Extreme |
| May | 10 | Very high |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 10 | Very high |
| Sep | 12 | Extreme |
| Oct | 13 | Extreme |
| Nov | 14 | Extreme |
| Dec | 13 | Extreme |
Where is Cocos?
Cocos sits at 14.2°S, 44.5°W, 553 m above sea level, in Brazil. The nearest listed city is Malhada, 84 km away.
Topography around Cocos
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Cocos.
Within 3 km, the terrain around Cocos has only modest variations in elevation — a maximum elevation change of 110 m around an average of 581 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 255 m; within 80 km, significant variations in elevation — a maximum elevation change of 392 m.
The land around Cocos is covered by shrubs (39%) and grassland (28%) within 3 km, shrubs (60%) and grassland (20%) within 16 km, and shrubs (66%) 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 Cocos (-14.1839°, -44.5344°, elevation 553 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.