Climate and average weather in Sorong

In Sorong, 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 April.

Best: mid June to early October

Over the course of the year, the temperature in Sorong typically varies from 23°C to 30°C, and is rarely below 22°C or above 32°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 Sorong for warm-weather activities is from mid June to early October.

Hottest
Oct
30°
Coldest
Jul
23°
Wettest
Apr
374 mm
Driest
Aug
226 mm
Rain / yr
3548 mm
313 wet days
Daylight
11.9–12.1 h
shortest–longest
Elevation
7 m
0.9°S
Clearest
Aug
79% cloud

Sorong is city in Southwest Papua Province, Indonesia.

Density
199/km²
people per km²
Founded
2000

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Sorong 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 mid June to early October.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Sorong stay fairly even through the year, without a distinct hot or cool season. The warmest month is October, with an average high of 30°C and low of 24°C; the coolest is July, with an average low of 23°C and high of 29°C.

Days typically run about 6°C warmer than nights year-round.

20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2924
Feb2924
Mar3024
Apr3024
May3024
Jun2924
Jul2923
Aug2923
Sep3023
Oct3024
Nov3024
Dec3024

How hot and cold Sorong 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, Sorong feels like about 37°C (around November 29). 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)
Jan35292424
Feb35292424
Mar35302424
Apr36302424
May36302424
Jun34292324
Jul33292323
Aug33292323
Sep34302323
Oct35302424
Nov37302424
Dec36302424

Average hourly temperature in Sorong

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 30°C, and coldest before dawn in July, near 23°C.

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

Sorong 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
Jan29° / 24°30627.7122.9
Feb29° / 24°26224.4123.0
Mar30° / 24°34228.5122.9
Apr30° / 24°37429122.7
May30° / 24°31428.2122.9
Jun29° / 24°30225.7123.2
Jul29° / 23°26023.7123.7
Aug29° / 23°22620.4123.9
Sep30° / 23°24923.1123.4
Oct30° / 24°27224.7123.1
Nov30° / 24°29927.5122.8
Dec30° / 24°34429.7122.7

Chance of rain

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

Sorong gets about 3548 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 7.3 months, from around Nov 4 to Jun 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 6.

April is the wettest month by volume, with 374 mm over about 29 wet days; August is the driest, with 226 mm.

0%10%20%30%40%50%60%70%80%90%100%110%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetApr 23 · 97%Aug 6 · 64%
Rain on a day (%)Rain days
Jan9028
Feb8724
Mar9229
Apr9629
May9128
Jun8526
Jul7624
Aug6820
Sep7623
Oct8025
Nov9128
Dec9530

Monthly rainfall

Over a full year, Sorong collects about 3548 mm of rain across 313 wet days — roughly 296 mm in an average month.

It doesn’t fall evenly. April is the wettest month with 374 mm, while August is the driest at just 226 mm. The three wettest months alone bring about 30% of the year’s total.

050100150200250300350400450JanFebMarAprMayJunJulAugSepOctNovDec306262342374314302260226249272299344
Rainfall (mm)Rain days
Jan30628
Feb26224
Mar34229
Apr37429
May31428
Jun30226
Jul26024
Aug22620
Sep24923
Oct27225
Nov29928
Dec34430

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Sorong, 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 4 and lasts for 6.1 months, ending around November 5. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 17% of the time on average.

The cloudier part of the year begins around November 6 and lasts for 5.9 months, ending around May 3. The cloudiest month is December, 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 18 · 18%Dec 19 · 3%partly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan595
Feb496
Mar595
Apr595
May1585
Jun1387
Jul1486
Aug1783
Sep1288
Oct1387
Nov793
Dec397

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, Sorong 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)
Jan12.06:236:26
Feb12.06:296:30
Mar12.06:246:25
Apr12.06:166:15
May12.06:126:10
Jun12.06:176:14
Jul12.06:226:19
Aug12.06:206:18
Sep12.06:096:09
Oct12.05:596:01
Nov12.05:596:01
Dec12.06:106:13

Sunny days

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

Sorong 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.

05JanFebMarAprMayJunJulAugSepOctNovDecgloomyAug 172 daysDec 120 days
Sunny daysSky
Jan0Gloomy
Feb0Gloomy
Mar0Gloomy
Apr0Gloomy
May1Gloomy
Jun1Gloomy
Jul1Gloomy
Aug1Gloomy
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.

Sorong 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%JanFebMarAprMayJunJulAugSepOctNovDecmiserableoppressive
Muggy (%)Oppressive (%)Miserable (%)
Jan03565
Feb04159
Mar03565
Apr01783
May02476
Jun05644
Jul28216
Aug68311
Sep47620
Oct14851
Nov01980
Dec01585

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 Sorong is typically calm, near 6 km/h, and varies little with the seasons.

The windier part of the year lasts 3.8 months, from around Jun 16 to Oct 8. The windiest month is August, averaging about 9 km/h (calm).

The calmer part of the year runs from around Oct 9 to Jan 22, with November the calmest month at about 5 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezeAug 6 · 9 km/hNov 23 · 4 km/h
Wind speed (km/h)Feels
Jan6calm
Feb7calm
Mar6calm
Apr5calm
May5calm
Jun6calm
Jul8calm
Aug9calm
Sep7calm
Oct6calm
Nov5calm
Dec5calm

Best time to visit Sorong

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late September, Sorong 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 Sorong for general outdoor tourist activities is from mid June to late September, with a peak score in the first week of August.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationAug 6 · 4.1

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
Jan2.9poor
Feb3.0poor
Mar2.9poor
Apr2.7poor
May2.9poor
Jun3.2poor
Jul3.7fair
Aug3.9fair
Sep3.4poor
Oct3.1poor
Nov2.8poor
Dec2.7poor

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 Sorong for hot-weather activities is from mid June to late October, with a peak score in the first week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 7 · 5.2

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 Sorong, 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.

Sorong packs about the same all year — highs hold near 30°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 October, Sorong sees daytime highs around 30°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

Sea temperature near Sorong

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 15 km away) is warmest in November at about 30°C and coldest in February near 29°C.

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

28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May30Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct30Tropical
Nov30Tropical
Dec30Tropical

UV index (midday) in Sorong 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 Sorong peaks around March 16 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 12 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 16UV 16Jul 12UV 12
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep14Extreme
Oct15Extreme
Nov13Extreme
Dec12Extreme

Average hourly UV index in Sorong

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 6.5 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)
Jan86.5
Feb8.57
Mar8.56.5
Apr8.57
May86
Jun86
Jul7.55.5
Aug86
Sep86.5
Oct8.56.5
Nov86.5
Dec86
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Sorong 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. Sorong banks about 6,044 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)
Jan515
Feb466
Mar517
Apr501
May519
Jun490
Jul497
Aug499
Sep494
Oct520
Nov506
Dec520

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.

Sorong receives about 4.7 kWh/m² a day of solar energy — bright — and it stays remarkably steady, holding between 4.3 and 5.1 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.

0123456JanFebMarAprMayJunJulAugSepOctNovDecdimmoderatebrightOct 35.1 kWhJun 164.3 kWh
Solar energy (kWh/m²)Level
Jan4.8Bright
Feb4.8Bright
Mar4.8Bright
Apr4.5Bright
May4.5Bright
Jun4.2Bright
Jul4.3Bright
Aug4.6Bright
Sep4.9Bright
Oct5.0Bright
Nov4.8Bright
Dec4.5Bright

Where is Sorong?

Sorong sits at 0.9°S, 131.3°E, 7 m above sea level, in Indonesia. The nearest listed city is Teminabuan, 104 km away.

BintuniManokwariRansikiMasohiAmahai

Topography around Sorong

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

Within 3 km, the terrain around Sorong has only modest variations in elevation — a maximum elevation change of 157 m around an average of 22 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 441 m; within 80 km, large variations in elevation — a maximum elevation change of 1,165 m.

The land around Sorong is covered by water (44%) and trees (33%) within 3 km, water (57%) and trees (32%) within 16 km, and water (51%) and trees (45%) within 80 km.

3 km
157 m
16 km
441 m
80 km
1,165 m
treesgrasslandartificial surfaceswatermangroves
Nearby: Teminabuan 104 km · Waisai 110 km · Fakfak 255 km · Bintuni 286 km · Manokwari 312 km · Ransiki 331 km · Masohi 370 km · Amahai 378 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 Sorong (-0.8796°, 131.261°, elevation 7 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).