Climate and average weather in Bintuni

In Bintuni, the weather is muggy, hot, wet, and mostly cloudy and remarkably steady, with daytime highs holding near hot levels all year. The wettest stretch peaks around March.

Best: late May to late October

Over the course of the year, the temperature in Bintuni typically varies from 23°C to 31°C, and is rarely below 22°C or above 32°C. November is the hottest month of the year, while July is the coldest.

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

Hottest
Nov
31°
Coldest
Jul
23°
Wettest
Mar
310 mm
Driest
Aug
196 mm
Rain / yr
2969 mm
318 wet days
Daylight
11.9–12.1 h
shortest–longest
Elevation
12 m
2.1°S
Clearest
Aug
78% cloud

Bintuni 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 late May to late October.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Bintuni stay fairly even through the year, without a distinct hot or cool season. The warmest month is November, with an average high of 31°C and low of 23°C; the coolest is July, with an average low of 23°C and high of 29°C.

Days typically run about 7°C warmer than nights year-round.

20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3023
Feb3023
Mar3023
Apr3023
May3024
Jun3023
Jul2923
Aug3023
Sep3023
Oct3123
Nov3123
Dec3023

How hot and cold Bintuni 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, Bintuni feels like about 36°C (around November 15). Nearly every day a year carries some heat stress, peaking in November.

20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan35302323
Feb35302323
Mar35302323
Apr35302323
May36302324
Jun34302323
Jul33292323
Aug33302323
Sep34302323
Oct35312323
Nov36312323
Dec36302323

Average hourly temperature in Bintuni

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 November afternoons, near 31°C, and coldest before dawn in July, near 23°C.

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

Bintuni 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
Jan30° / 23°2812912.12.6
Feb30° / 23°2782612.12.6
Mar30° / 23°31029.5122.6
Apr30° / 23°31028.9122.6
May30° / 24°24427.411.92.9
Jun30° / 23°24326.211.93.1
Jul29° / 23°20924.111.93.5
Aug30° / 23°19622.311.93.6
Sep30° / 23°21524.2123.2
Oct31° / 23°20924.9123.0
Nov31° / 23°21226.112.12.7
Dec30° / 23°26229.212.12.5

Chance of rain

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

Bintuni gets about 2969 mm of precipitation a year. On a typical day the chance of rain is very wet, but that rises and falls sharply with the seasons.

The wetter season lasts 5.9 months, from around Nov 16 to May 13, peaking in April at about 97% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 11.

March is the wettest month by volume, with 310 mm over about 30 wet days; August is the driest, with 196 mm.

0%10%20%30%40%50%60%70%80%90%100%110%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetApr 1 · 97%Aug 11 · 71%
Rain on a day (%)Rain days
Jan9429
Feb9326
Mar9530
Apr9629
May8927
Jun8726
Jul7824
Aug7322
Sep8024
Oct8125
Nov8726
Dec9429

Monthly rainfall

Over a full year, Bintuni collects about 2969 mm of rain across 318 wet days — roughly 247 mm in an average month.

It doesn’t fall evenly. March is the wettest month with 310 mm, while August is the driest at just 196 mm. The three wettest months alone bring about 30% of the year’s total.

050100150200250300350JanFebMarAprMayJunJulAugSepOctNovDec281278310310244243209196215209212262
Rainfall (mm)Rain days
Jan28129
Feb27826
Mar31030
Apr31029
May24427
Jun24326
Jul20924
Aug19622
Sep21524
Oct20925
Nov21226
Dec26229

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

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

The clearer part of the year begins around May 3 and lasts for 6.3 months, ending around November 9. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 19% of the time on average.

The cloudier part of the year begins around November 10 and lasts for 5.7 months, ending around May 2. The cloudiest month is February, when it is overcast or mostly cloudy 97% 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%JanFebMarAprMayJunJulAugSepOctNovDecMay 21 · 22%Feb 13 · 3%partly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan496
Feb397
Mar595
Apr694
May1882
Jun1684
Jul1585
Aug1981
Sep1981
Oct1585
Nov991
Dec595

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. Close to the equator, Bintuni barely changes through the year: days stay near 12 h 06 min of light in every season.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.16:126:18
Feb12.16:186:23
Mar12.06:156:16
Apr12.06:086:05
May11.96:055:59
Jun11.96:106:03
Jul11.96:156:08
Aug11.96:126:08
Sep12.06:016:00
Oct12.05:505:52
Nov12.15:485:54
Dec12.15:586:06

Sunny days

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

Bintuni gets about 1 sunny days a month gloomy — and it barely shifts through the year, holding between 0 and 2 days every month. Clear skies here are a flat line, not a season.

05JanFebMarAprMayJunJulAugSepOctNovDecgloomyMay 232 daysJan 10 days
Sunny daysSky
Jan0Gloomy
Feb0Gloomy
Mar0Gloomy
Apr0Gloomy
May2Gloomy
Jun1Gloomy
Jul1Gloomy
Aug2Gloomy
Sep1Gloomy
Oct1Gloomy
Nov1Gloomy
Dec0Gloomy

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.

Bintuni is humid all year round — on a typical day the air feels at least humid, and there is no real dry season to wait for.

The stickiest month is January, when it feels muggy, oppressive or miserable about 100% of the time. Even in January, the mildest month, the air is dry or comfortable only 0% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecmiserableoppressivemuggy
Muggy (%)Oppressive (%)Miserable (%)
Jan06634
Feb06832
Mar06832
Apr05446
May04951
Jun16831
Jul38513
Aug7839
Sep48115
Oct17226
Nov06337
Dec05941

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.

Wind in Bintuni is steady company: average speeds sit near 5 km/hcalm — in every month of the year, with no meaningful windy or calm season.

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmAug 7 · 5 km/hMay 30 · 4 km/h
Wind speed (km/h)Feels
Jan5calm
Feb5calm
Mar5calm
Apr5calm
May4calm
Jun4calm
Jul5calm
Aug5calm
Sep5calm
Oct5calm
Nov5calm
Dec5calm

Best time to visit Bintuni

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid October, Bintuni is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

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 Bintuni for general outdoor tourist activities is from late May to late October, with a peak score in the second week of August.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationAug 8 · 3.7

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
Jan2.6poor
Feb2.6poor
Mar2.6poor
Apr2.6poor
May2.9poor
Jun3.1poor
Jul3.5poor
Aug3.6fair
Sep3.2poor
Oct3.0poor
Nov2.7poor
Dec2.5poor

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 Bintuni for hot-weather activities is from early May to mid November, with a peak score in the second week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 11 · 4.9

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 Bintuni, 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.

Bintuni packs about the same all year — highs hold near 31°C. Across the year the things worth having are light clothes, rain gear and sun protection.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In November, Bintuni sees daytime highs around 31°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 26 days see rain.

Sea temperature near Bintuni

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea at the nearest coast (about 32 km away) is warmest in April at about 30°C and coldest in August near 28°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan30Tropical
Feb30Tropical
Mar30Tropical
Apr30Tropical
May30Tropical
Jun29Tropical
Jul29Tropical
Aug28Tropical
Sep29Tropical
Oct29Tropical
Nov30Tropical
Dec30Tropical

UV index (midday) in Bintuni 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 Bintuni peaks around March 13 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 11 (extreme).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 13UV 16Jul 11UV 11
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun12Extreme
Jul11Extreme
Aug13Extreme
Sep14Extreme
Oct15Extreme
Nov13Extreme
Dec13Extreme

Average hourly UV index in Bintuni

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 March 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
Mar8.57
Apr86.5
May86
Jun7.55.5
Jul7.55.5
Aug86
Sep86.5
Oct86.5
Nov86
Dec86.5
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Bintuni 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. Bintuni banks about 6,068 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around November.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan520
Feb471
Mar520
Apr501
May520
Jun489
Jul497
Aug500
Sep494
Oct522
Nov510
Dec524

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.

Bintuni receives about 4.8 kWh/m² a day of solar energy — bright — and it stays remarkably steady, holding between 4.1 and 5.3 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.

0123456JanFebMarAprMayJunJulAugSepOctNovDecdimmoderatebrightOct 125.3 kWhJun 274.1 kWh
Solar energy (kWh/m²)Level
Jan5.1Bright
Feb5.1Bright
Mar5.1Bright
Apr4.8Bright
May4.7Bright
Jun4.2Bright
Jul4.2Bright
Aug4.5Bright
Sep4.9Bright
Oct5.3Bright
Nov5.2Bright
Dec5.0Bright

Where is Bintuni?

Bintuni sits at 2.1°S, 133.5°E, 12 m above sea level, in Indonesia. The nearest listed city is Ransiki, 98 km away.

SorongBiakWaisai

Topography around Bintuni

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Bintuni.

Within 3 km, the terrain around Bintuni has only modest variations in elevation — a maximum elevation change of 226 m around an average of 51 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 502 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,799 m.

The land around Bintuni is covered by trees (55%) and mangroves (34%) within 3 km, trees (54%) and mangroves (34%) within 16 km, and trees (65%) and water (21%) within 80 km.

3 km
226 m
16 km
502 m
80 km
2,799 m
treesgrasslandartificial surfaceswatermangroves
Nearby: Ransiki 98 km · Manokwari 151 km · Fakfak 164 km · Teminabuan 184 km · Nabire 260 km · Sorong 286 km · Biak 303 km · Waisai 395 km

Indonesia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$5,060
2025
Happiness
5.6 / 10
World Happiness, 2025
Safe drinking water
30%
of population, 2024
Homicide rate
0.3
per 100k, 2022
Road deaths
11.3
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 471
Religion
Muslim 87%Protestant 8%Roman Catholic 3%Hindu 2%

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 Bintuni (-2.1097°, 133.5246°, elevation 12 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).