Climate and average weather in Delanggu

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

Best: mid June to late September

Over the course of the year, the temperature in Delanggu typically varies from 21°C to 31°C, and is rarely below 19°C or above 33°C. October is the hottest month of the year, while January is the coldest.

Based on the travel score, the best time of year to visit Delanggu for warm-weather activities is from mid June to late September.

Hottest
Oct
31°
Coldest
Jan
22°
Wettest
Jan
354 mm
Driest
Aug
19 mm
Rain / yr
2188 mm
218 wet days
Daylight
11.6–12.4 h
shortest–longest
Elevation
153 m
7.6°S
Clearest
Aug
55% cloud

Delanggu 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 late September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Delanggu stay fairly even through the year, without a distinct hot or cool season. The warmest month is October, with an average high of 31°C and low of 22°C; the coolest is January, with an average low of 22°C and high of 30°C.

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

15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3022
Feb3022
Mar3023
Apr3023
May3023
Jun3022
Jul3021
Aug3021
Sep3122
Oct3122
Nov3123
Dec3023

How hot and cold Delanggu 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, Delanggu feels like about 35°C (around November 2). About 331 days a year carry some heat stress, peaking in November.

20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan33302222
Feb33302222
Mar34302323
Apr34302323
May34302323
Jun33302222
Jul32302121
Aug32302121
Sep33312122
Oct34312222
Nov34312323
Dec33302323

Average hourly temperature in Delanggu

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 31°C, and coldest before dawn in January, near 22°C.

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

Delanggu 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° / 22°35427.912.42.9
Feb30° / 22°35327.212.32.7
Mar30° / 23°32028.112.12.8
Apr30° / 23°22325.411.83.0
May30° / 23°10716.611.74.1
Jun30° / 22°5910.311.64.8
Jul30° / 21°386.711.65.3
Aug30° / 21°193.811.85.5
Sep31° / 22°405.8124.8
Oct31° / 22°12114.712.23.8
Nov31° / 23°24224.312.32.9
Dec30° / 23°31326.712.42.9

Chance of rain

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

Delanggu gets about 2188 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 6.3 months, from around Oct 28 to May 8, peaking in February at about 97% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 7.

January is the wettest month by volume, with 354 mm over about 28 wet days; August is the driest, with 19 mm.

0%10%20%30%40%50%60%70%80%90%100%110%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetFeb 6 · 97%Aug 7 · 11%
Rain on a day (%)Rain days
Jan9028
Feb9627
Mar9228
Apr8425
May5417
Jun3510
Jul217
Aug124
Sep216
Oct4815
Nov8024
Dec8627

Monthly rainfall

Over a full year, Delanggu collects about 2188 mm of rain across 218 wet days — roughly 182 mm in an average month.

It doesn’t fall evenly. January is the wettest month with 354 mm, while August is the driest at just 19 mm. The three wettest months alone bring about 47% of the year’s total.

050100150200250300350400JanFebMarAprMayJunJulAugSepOctNovDec35435332022310759381940121242313
Rainfall (mm)Rain days
Jan35428
Feb35327
Mar32028
Apr22325
May10717
Jun5910
Jul387
Aug194
Sep406
Oct12115
Nov24224
Dec31327

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Delanggu, 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 1 and lasts for 5.8 months, ending around October 25. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 60% of the time on average.

The cloudier part of the year begins around October 26 and lasts for 6.1 months, ending around April 30. 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%JanFebMarAprMayJunJulAugSepOctNovDecAug 10 · 61%Feb 19 · 3%mostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan694
Feb397
Mar1090
Apr1981
May4258
Jun5149
Jul5545
Aug6040
Sep5347
Oct3664
Nov1585
Dec694

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 24 min of light; the shortest, around May 17, only 11 h 36 min — a swing of roughly 0 h 48 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.45:355:59
Feb12.35:445:59
Mar12.15:455:48
Apr11.85:435:32
May11.75:445:23
Jun11.65:515:24
Jul11.65:555:31
Aug11.85:495:34
Sep12.05:335:30
Oct12.25:175:27
Nov12.35:125:33
Dec12.45:205:47

Sunny days

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

Delanggu averages about 4 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 9 days.

The sunnier stretch runs 5.6 months, from around May 3 to Oct 20. The sunniest month is June, with roughly 8 sunny days (gloomy).

The greyest month is January, down near 0 sunny days — about 95% fewer than the June peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedJun 249 daysJan 280 days
Sunny daysSky
Jan0Gloomy
Feb0Gloomy
Mar1Gloomy
Apr2Gloomy
May6Gloomy
Jun8Gloomy
Jul8Gloomy
Aug9Mixed
Sep8Gloomy
Oct4Gloomy
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.

Delanggu 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 August, the mildest month, the air is dry or comfortable only 1% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecmuggyoppressivehumid
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan002971
Feb001981
Mar001963
Apr001935
May0114814
Jun0437580
Jul01656270
Aug12166130
Sep01169200
Oct0245530
Nov0012880
Dec005950

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

The windier part of the year lasts 5.3 months, from around Jun 26 to Dec 4. The windiest month is September, averaging about 8 km/h (calm).

The calmer part of the year runs from around Dec 5 to Jun 25, with February the calmest month at about 4 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezeSep 24 · 8 km/hFeb 19 · 4 km/h
Wind speed (km/h)Feels
Jan5calm
Feb4calm
Mar4calm
Apr4calm
May5calm
Jun5calm
Jul7calm
Aug8calm
Sep8calm
Oct7calm
Nov6calm
Dec6calm

Hazard calendar for Delanggu

In seasonPeak

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

Delanggu sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Delanggu's monsoon runs November–April, when most of the year's rain falls.

Cyclone
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Best time to visit Delanggu

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid June, Delanggu 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 Delanggu 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 · 5.7

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
Jan2.9poor
Feb2.7poor
Mar2.8poor
Apr3.0poor
May4.1fair
Jun4.8fair
Jul5.3fair
Aug5.5fair
Sep4.8fair
Oct3.8fair
Nov2.9poor
Dec2.9poor

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

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 7 · 7.8

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 Delanggu, 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.

Delanggu 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 October, Delanggu sees daytime highs around 31°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 15 days see rain.

Sea temperature near Delanggu

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 57 km away) is warmest in March at about 29°C and coldest in August near 25°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May28Tropical
Jun27Warm
Jul26Warm
Aug25Warm
Sep25Warm
Oct26Warm
Nov28Warm
Dec29Tropical

UV index (midday) in Delanggu 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 Delanggu peaks around March 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 14 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeVery highExtremeMar 13UV 14Jun 14UV 7
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar14Extreme
Apr12Extreme
May8Very high
Jun7Very high
Jul9Very high
Aug11Extreme
Sep13Extreme
Oct13Extreme
Nov9Very high
Dec11Extreme

Average hourly UV index in Delanggu

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 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
Feb86
Mar86.5
Apr7.55.5
May74
Jun6.53
Jul75
Aug7.55.5
Sep86
Oct86
Nov74.5
Dec85.5

Air quality in Delanggu 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 Delanggu is worst in May — around 54 µg/m³ PM2.5 (poor), about 1.7× the cleanest month (September, 32 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorMay 1254 µg/m³Sep 1333 µg/m³
PM2.5 (µg/m³)Level
Jan43Poor
Feb43Poor
Mar49Poor
Apr52Poor
May54Poor
Jun47Poor
Jul40Poor
Aug34Moderate
Sep32Moderate
Oct36Poor
Nov39Poor
Dec39Poor
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Delanggu 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. Delanggu banks about 5,907 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)
Jan494
Feb447
Mar504
Apr494
May510
Jun482
Jul484
Aug484
Sep488
Oct519
Nov500
Dec501

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.

Delanggu receives about 5.0 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.4 and 6.0 kWh/m².

The brighter stretch of the year lasts 3.9 months, from around Jul 22 to Nov 17. The brightest month is September, averaging about 5.9 kWh/m² (bright).

The dimmest month is January, down near 4.5 kWh/m² — roughly 23% less than the September peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseSep 216.0 kWhJan 314.4 kWh
Solar energy (kWh/m²)Level
Jan4.6Bright
Feb4.6Bright
Mar4.9Bright
Apr4.9Bright
May4.9Bright
Jun4.7Bright
Jul5.0Bright
Aug5.5Bright
Sep5.9Bright
Oct5.9Bright
Nov5.1Bright
Dec4.6Bright

Where is Delanggu?

Delanggu sits at 7.6°S, 110.7°E, 153 m above sea level, in Indonesia. The nearest listed city is Gatak, 4.0 km away.

Topography around Delanggu

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

Within 3 km, the terrain around Delanggu has only modest variations in elevation — a maximum elevation change of 75 m around an average of 153 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 564 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,291 m.

The land around Delanggu is covered by cropland (44%), trees (27%) and artificial surfaces (22%) within 3 km, trees (36%), cropland (35%) and artificial surfaces (27%) within 16 km, and trees (62%) and cropland (20%) within 80 km.

3 km
75 m
16 km
564 m
80 km
3,291 m
treesgrasslandcroplandartificial surfaceswater
Nearby: Gatak 4.0 km · Ceper 6.0 km · Karanganom 7.0 km · Ngemplak 8.0 km · Kartasura 9.0 km · Baki 11 km · Trucuk 12 km · Colomadu 12 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 Delanggu (-7.6167°, 110.6833°, elevation 153 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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. 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).