Climate and average weather in Barabai

In Barabai, 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 November.

Best: early June to mid October

Over the course of the year, the temperature in Barabai typically varies from 22°C to 32°C, and is rarely below 20°C or above 34°C. September is the hottest month of the year, while January is the coldest.

Based on the travel score, the best time of year to visit Barabai for warm-weather activities is from early June to mid October.

Hottest
Sep
32°
Coldest
Jan
23°
Wettest
Nov
276 mm
Driest
Aug
96 mm
Rain / yr
2313 mm
275 wet days
Daylight
11.9–12.1 h
shortest–longest
Elevation
16 m
2.6°S
Clearest
Aug
68% cloud

Barabai is district in Central Hulu Sungai Regency, South Kalimantan Province, Indonesia.

Density
1,025/km²
people per km²

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

Barabai 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 June to mid October.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Barabai stay fairly even through the year, without a distinct hot or cool season. The warmest month is September, with an average high of 32°C and low of 22°C; the coolest is January, with an average low of 23°C and high of 30°C.

Days typically run about 8°C warmer than nights year-round.

20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3023
Feb3023
Mar3023
Apr3023
May3123
Jun3023
Jul3022
Aug3122
Sep3222
Oct3123
Nov3023
Dec3023

How hot and cold Barabai 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, Barabai feels like about 36°C (around May 3). Nearly every day a year carries some heat stress, peaking in May.

20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan33302323
Feb34302323
Mar34302323
Apr35302323
May36312323
Jun35302323
Jul34302222
Aug35312222
Sep35322222
Oct35312323
Nov35302323
Dec34302323

Average hourly temperature in Barabai

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 September afternoons, near 32°C, and coldest before dawn in January, near 23°C.

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

Barabai 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°19927.112.12.9
Feb30° / 23°18123.812.12.9
Mar30° / 23°24927.5122.8
Apr30° / 23°25427.511.92.7
May31° / 23°21225.211.92.9
Jun30° / 23°16520.211.93.5
Jul30° / 22°13017.311.93.9
Aug31° / 22°961411.93.9
Sep32° / 22°11614.9123.5
Oct31° / 23°19620.712.13.1
Nov30° / 23°27627.812.12.6
Dec30° / 23°24228.712.12.7

Chance of rain

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

Barabai gets about 2313 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 7.2 months, from around Oct 28 to Jun 4, peaking in November at about 95% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 9.

November is the wettest month by volume, with 276 mm over about 28 wet days; August is the driest, with 96 mm.

0%10%20%30%40%50%60%70%80%90%100%110%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetNov 26 · 95%Aug 9 · 43%
Rain on a day (%)Rain days
Jan8827
Feb8524
Mar8928
Apr9128
May8125
Jun6820
Jul5617
Aug4514
Sep5115
Oct6621
Nov9128
Dec9329

Monthly rainfall

Over a full year, Barabai collects about 2313 mm of rain across 275 wet days — roughly 193 mm in an average month.

It doesn’t fall evenly. November is the wettest month with 276 mm, while August is the driest at just 96 mm. The three wettest months alone bring about 34% of the year’s total.

050100150200250300JanFebMarAprMayJunJulAugSepOctNovDec19918124925421216513096116196276242
Rainfall (mm)Rain days
Jan19927
Feb18124
Mar24928
Apr25428
May21225
Jun16520
Jul13017
Aug9614
Sep11615
Oct19621
Nov27628
Dec24229

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Barabai, 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 May 9 and lasts for 5.4 months, ending around October 20. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 36% of the time on average.

The cloudier part of the year begins around October 21 and lasts for 6.6 months, ending around May 8. The cloudiest month is December, when it is overcast or mostly cloudy 99% 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%JanFebMarAprMayJunJulAugSepOctNovDecAug 16 · 38%Dec 13 · 1%mostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan397
Feb496
Mar595
Apr793
May2080
Jun2674
Jul3169
Aug3664
Sep3169
Oct1783
Nov496
Dec199

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, Barabai 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)
Jan12.16:246:32
Feb12.16:316:36
Mar12.06:286:29
Apr11.96:206:17
May11.96:186:11
Jun11.96:236:14
Jul11.96:286:20
Aug11.96:256:20
Sep12.06:136:12
Oct12.16:026:05
Nov12.16:006:07
Dec12.16:106:19

Sunny days

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

Barabai averages about 2 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 5 days.

The sunnier stretch runs 5.4 months, from around May 11 to Oct 20. The sunniest month is August, with roughly 4 sunny days (gloomy).

The greyest month is January, down near 0 sunny days — about 96% fewer than the August peak.

0510JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedAug 165 daysJan 10 days
Sunny daysSky
Jan0Gloomy
Feb0Gloomy
Mar0Gloomy
Apr0Gloomy
May2Gloomy
Jun3Gloomy
Jul4Gloomy
Aug4Gloomy
Sep3Gloomy
Oct2Gloomy
Nov0Gloomy
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.

Barabai 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
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan00928
Feb00919
Mar008317
Apr006832
May006337
Jun028315
Jul012853
Aug129681
Sep426683
Oct214786
Nov018514
Dec009010

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 Barabai is steady company: average speeds sit near 4 km/hcalm — in every month of the year, with no meaningful windy or calm season.

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmSep 13 · 4 km/hMay 21 · 3 km/h
Wind speed (km/h)Feels
Jan4calm
Feb4calm
Mar4calm
Apr4calm
May3calm
Jun3calm
Jul4calm
Aug4calm
Sep4calm
Oct4calm
Nov3calm
Dec4calm

Best time to visit Barabai

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around early October, Barabai 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 Barabai for general outdoor tourist activities is from early June to early October, with a peak score in the last week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 29 · 4.0

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
Feb2.9poor
Mar2.8poor
Apr2.7poor
May3.0poor
Jun3.5poor
Jul3.9fair
Aug3.9fair
Sep3.5poor
Oct3.1poor
Nov2.6poor
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 Barabai for hot-weather activities is from mid June to mid October, with a peak score in the second week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 9 · 5.9

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 Barabai, 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.

Barabai packs about the same all year — highs hold near 32°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 September, Barabai sees daytime highs around 32°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 15 days see rain.

UV index (midday) in Barabai 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 Barabai peaks around February 19 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 19UV 15Jul 12UV 10
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May12Extreme
Jun11Extreme
Jul10Extreme
Aug12Extreme
Sep13Extreme
Oct13Extreme
Nov12Extreme
Dec12Extreme

Average hourly UV index in Barabai

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 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)
Jan8.56.5
Feb8.56.5
Mar8.56.5
Apr86
May86
Jun7.55.5
Jul7.55
Aug7.55.5
Sep86
Oct86
Nov86
Dec86

Air quality in Barabai by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.

Air quality in Barabai is worst in September — around 93 µg/m³ PM2.5 (unhealthy), about 5.3× the cleanest month (January, 18 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0306090120JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyModerateSep 2292 µg/m³Jan 1518 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb18Moderate
Mar22Moderate
Apr21Moderate
May23Moderate
Jun23Moderate
Jul30Moderate
Aug49Poor
Sep93Unhealthy
Oct87Unhealthy
Nov28Moderate
Dec18Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Barabai 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. Barabai banks about 6,051 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)
Jan502
Feb459
Mar513
Apr503
May525
Jun496
Jul504
Aug514
Sep507
Oct527
Nov498
Dec504

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.

Barabai receives about 4.8 kWh/m² a day of solar energy — bright — and it stays remarkably steady, holding between 4.2 and 5.5 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmoderatebrightintenseSep 215.5 kWhDec 244.2 kWh
Solar energy (kWh/m²)Level
Jan4.5Bright
Feb4.7Bright
Mar4.8Bright
Apr4.6Bright
May4.6Bright
Jun4.5Bright
Jul4.7Bright
Aug5.2Bright
Sep5.5Bright
Oct5.2Bright
Nov4.6Bright
Dec4.3Bright

Where is Barabai?

Barabai sits at 2.6°S, 115.4°E, 16 m above sea level, in Indonesia. The nearest listed city is Amuntai, 24 km away.

Topography around Barabai

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

Within 3 km, the terrain around Barabai has only modest variations in elevation — a maximum elevation change of 19 m around an average of 15 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 556 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,962 m.

The land around Barabai is covered by trees (43%) and cropland (32%) within 3 km, trees (68%) within 16 km, and trees (80%) within 80 km.

3 km
19 m
16 km
556 m
80 km
1,962 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
Nearby: Amuntai 24 km · Tanjung 46 km · Martapura 109 km · Banjarbaru 113 km · Banjarmasin 120 km · Kualakapuas 120 km · Palangkaraya 168 km · Muara Teweh 190 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 Barabai (-2.5833°, 115.3833°, elevation 16 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).