Climate and average weather in Cocos

In Cocos, the weather is sweltering, wet, and mostly clear and remarkably steady, with daytime highs holding near sweltering levels all year. The wettest stretch peaks around November.

Best: early May to late August

Over the course of the year, the temperature in Cocos typically varies from 18°C to 33°C, and is rarely below 15°C or above 37°C. October is the hottest month of the year, while July is the coldest.

Based on the travel score, the best time of year to visit Cocos for warm-weather activities is from early May to late August.

Hottest
Oct
33°
Coldest
Jul
18°
Wettest
Nov
165 mm
Driest
Jul
0 mm
Rain / yr
803 mm
85 wet days
Daylight
11.2–12.8 h
shortest–longest
Elevation
553 m
14.2°S
Clearest
Aug
30% cloud

Cocos weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around early May to late August.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Cocos, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

Temperatures in Cocos stay fairly even through the year, without a distinct hot or cool season. The warmest month is October, with an average high of 33°C and low of 22°C; the coolest is July, with an average low of 18°C and high of 29°C.

Days typically run about 10°C warmer than nights, with the widest day–night swing (around 13°C) in September.

15°20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3121
Feb3121
Mar3121
Apr3121
May3020
Jun2918
Jul2918
Aug3118
Sep3320
Oct3322
Nov3122
Dec3021

How hot and cold Cocos really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the hottest afternoons, once humidity is folded in, Cocos feels like about 34°C (around October 2). About 182 days a year carry some heat stress, peaking in October.

15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan32312121
Feb32312121
Mar32312121
Apr32312121
May30302020
Jun29291818
Jul29291718
Aug31311818
Sep33332020
Oct33332222
Nov32312222
Dec32302121

Average hourly temperature in Cocos

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on October afternoons, near 33°C, and coldest before dawn in July, near 18°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Cocos weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 21°13013.112.74.3
Feb31° / 21°9811.412.54.3
Mar31° / 21°12712.712.14.4
Apr31° / 21°536.811.75.1
May30° / 20°81.711.45.9
Jun29° / 18°20.311.26.8
Jul29° / 18°00.111.27.0
Aug31° / 18°10.211.56.1
Sep33° / 20°71.211.94.6
Oct33° / 22°616.612.33.7
Nov31° / 22°16515.212.73.8
Dec30° / 21°15215.512.84.1

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Cocos gets about 803 mm of precipitation a year. On a typical day the chance of rain is some rain, but that rises and falls sharply with the seasons.

The wetter season lasts 5.8 months, from around Oct 20 to Apr 14, peaking in December at about 57% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jun 26.

November is the wettest month by volume, with 165 mm over about 15 wet days; July is the driest, with 0 mm.

0%10%20%30%40%50%60%70%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetDec 3 · 57%Jun 26 · 0%
Rain on a day (%)Rain days
Jan4313
Feb4011
Mar4013
Apr227
May62
Jun10
Jul00
Aug10
Sep41
Oct227
Nov5015
Dec5016

Monthly rainfall

Over a full year, Cocos collects about 803 mm of rain across 85 wet days — roughly 67 mm in an average month.

It doesn’t fall evenly. November is the wettest month with 165 mm, while July is the driest at just 0 mm. The three wettest months alone bring about 56% of the year’s total.

0255075100125150175200JanFebMarAprMayJunJulAugSepOctNovDec13098127538201761165152
Rainfall (mm)Rain days
Jan13013
Feb9811
Mar12713
Apr537
May82
Jun20
Jul00
Aug10
Sep71
Oct617
Nov16515
Dec15216

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Cocos, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around April 12 and lasts for 6.3 months, ending around October 20. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 83% of the time on average.

The cloudier part of the year begins around October 21 and lasts for 5.7 months, ending around April 11. The cloudiest month is November, when it is overcast or mostly cloudy 68% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecSep 1 · 84%Nov 30 · 24%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan4159
Feb4357
Mar4753
Apr6040
May6436
Jun7426
Jul7822
Aug8317
Sep7921
Oct6040
Nov3268
Dec3367

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around January 1, brings about 12 h 48 min of light; the shortest, around May 28, only 11 h 12 min — a swing of roughly 1 h 36 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.75:456:30
Feb12.55:596:27
Mar12.16:056:11
Apr11.76:085:49
May11.46:145:35
Jun11.26:235:33
Jul11.26:275:41
Aug11.56:175:48
Sep11.95:555:50
Oct12.35:335:53
Nov12.75:236:03
Dec12.85:296:19

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Cocos averages about 13 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 4 and 22 days.

The sunnier stretch runs 5.0 months, from around May 22 to Oct 19. The sunniest month is September, with roughly 20 sunny days (bright).

The greyest month is November, down near 6 sunny days — about 71% fewer than the September peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantSep 122 daysNov 264 days
Sunny daysSky
Jan8Gloomy
Feb8Mixed
Mar10Mixed
Apr12Mixed
May14Mixed
Jun17Bright
Jul19Bright
Aug21Bright
Sep19Bright
Oct13Mixed
Nov6Gloomy
Dec7Gloomy

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Cocos, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 6.8 months, from around October 29 to May 23. The muggiest month is March, when the air feels humid, muggy or worse about 98% of the time.

The most comfortable stretch runs from around May 24 to October 28, and July is the most comfortable month — the air is dry or comfortable 97% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 28 · 99%Mar 26 · 1%oppressivecomfortablemuggyhumiddryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan04225023
Feb02245419
Mar02205424
Apr05364910
May52848200
Jun19572210
Jul4750300
Aug6235300
Sep48371130
Oct233320213
Nov511224814
Dec05225221

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Across the year, average wind speed in Cocos is typically calm, near 9 km/h, and varies little with the seasons.

The windier part of the year lasts 5.6 months, from around May 14 to Oct 30. The windiest month is September, averaging about 11 km/h (calm).

The calmer part of the year runs from around Oct 31 to May 13, with March the calmest month at about 7 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezeSep 4 · 11 km/hMar 14 · 7 km/h
Wind speed (km/h)Feels
Jan7calm
Feb7calm
Mar7calm
Apr8calm
May9calm
Jun9calm
Jul10calm
Aug11calm
Sep11calm
Oct10calm
Nov8calm
Dec7calm

Hazard calendar for Cocos

In seasonPeak

When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.

Cocos's rainy season runs November–March, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Best time to visit Cocos

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Cocos throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around mid May, Cocos is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Cocos for general outdoor tourist activities is from early May to late August, with a peak score in the first week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 5 · 7.1

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan4.3fair
Feb4.3fair
Mar4.4fair
Apr5.1fair
May5.9good
Jun6.8good
Jul7.0good
Aug6.1good
Sep4.6fair
Oct3.7fair
Nov3.8fair
Dec4.1fair

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Cocos for hot-weather activities is from mid April to late September, with a peak score in the second week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 10 · 9.1

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Cocos, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

Cocos packs about the same all year — highs hold near 33°C. Across the year the things worth having are light clothes and sun protection.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In October, Cocos sees daytime highs around 33°C and nights near 22°C. Pack light clothes and sun protection. About 7 days see rain.

UV index (midday) in Cocos by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 17UV 15Jul 10UV 8
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar15Extreme
Apr12Extreme
May10Very high
Jun8Very high
Jul8Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov14Extreme
Dec13Extreme

Average hourly UV index in Cocos

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in February the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 7 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan8.56.5
Feb8.57
Mar86.5
Apr86
May74.5
Jun6.54
Jul6.54
Aug75
Sep7.55.5
Oct86
Nov8.56.5
Dec8.56.5
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Cocos is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Cocos banks about 5,669 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around October.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan495
Feb450
Mar497
Apr473
May464
Jun413
Jul414
Aug445
Sep494
Oct543
Nov488
Dec492

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Cocos receives about 5.7 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.7 and 6.6 kWh/m².

The brighter stretch of the year lasts 3.1 months, from around Aug 16 to Nov 17. The brightest month is October, averaging about 6.4 kWh/m² (intense).

The dimmest month is June, down near 4.7 kWh/m² — roughly 28% less than the October peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseOct 76.6 kWhJun 174.7 kWh
Solar energy (kWh/m²)Level
Jan6.2Intense
Feb6.2Intense
Mar5.8Bright
Apr5.4Bright
May4.8Bright
Jun4.6Bright
Jul4.9Bright
Aug5.7Bright
Sep6.5Intense
Oct6.5Intense
Nov5.7Bright
Dec6.0Bright

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.

3 km
110 m
16 km
255 m
80 km
392 m
treesshrubsgrasslandcroplandartificial surfaces
Nearby: Malhada 84 km · Carinhanha 84 km · Manga 91 km · Correntina 94 km · São Félix do Coribe 95 km · Santa Maria da Vitória 96 km · Itacarambi 113 km · Serra do Ramalho 125 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
Roman Catholic 57%Evangelical 27%none 9%other 4%

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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).