Climate and average weather in Teluk Dalam

In Teluk Dalam, the weather is oppressive, 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 May to mid November

Over the course of the year, the temperature in Teluk Dalam typically varies from 25°C to 29°C, and is rarely below 25°C or above 30°C. May is the hottest month of the year, while November is the coldest.

Based on the travel score, the best times of year to visit Teluk Dalam for warm-weather activities are from early January to mid March and early May to mid November.

Hottest
May
29°
Coldest
Nov
25°
Wettest
Nov
441 mm
Driest
Jun
185 mm
Rain / yr
3333 mm
288 wet days
Daylight
12.0–12.0 h
shortest–longest
Elevation
41 m
0.6°N
Clearest
Jun
75% cloud

Teluk Dalam 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 mid November.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Teluk Dalam stay fairly even through the year, without a distinct hot or cool season. The warmest month is May, with an average high of 29°C and low of 26°C; the coolest is November, with an average low of 25°C and high of 28°C.

Days typically run about 3°C warmer than nights year-round.

18°20°22°24°26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2826
Feb2926
Mar2926
Apr2926
May2926
Jun2926
Jul2826
Aug2826
Sep2825
Oct2825
Nov2825
Dec2825

How hot and cold Teluk Dalam 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, Teluk Dalam feels like about 34°C (around May 14). About 179 days a year carry some heat stress, peaking in May.

24°26°28°30°32°34°36°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan32282626
Feb33292626
Mar33292626
Apr34292626
May34292626
Jun33292626
Jul32282626
Aug31282626
Sep31282525
Oct31282525
Nov31282525
Dec31282525

Average hourly temperature in Teluk Dalam

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 May afternoons, near 29°C, and coldest before dawn in November, near 25°C.

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

Teluk Dalam 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
Jan28° / 26°23323.8123.8
Feb29° / 26°19019.6124.0
Mar29° / 26°24626123.5
Apr29° / 26°28926.3123.3
May29° / 26°21621.7123.8
Jun29° / 26°18518.3124.3
Jul28° / 26°22521.1124.1
Aug28° / 26°28824.8123.8
Sep28° / 25°31325.3123.8
Oct28° / 25°37327123.7
Nov28° / 25°44127.8123.4
Dec28° / 25°33426.2123.7

Chance of rain

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

Teluk Dalam gets about 3333 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 4.7 months, from around Aug 13 to Jan 1, peaking in November at about 94% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jun 15.

November is the wettest month by volume, with 441 mm over about 28 wet days; June is the driest, with 185 mm.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecdrierwettermostly drysome rainoften wetvery wetNov 18 · 94%Jun 15 · 59%
Rain on a day (%)Rain days
Jan7724
Feb7120
Mar8326
Apr8726
May7022
Jun6118
Jul6921
Aug8025
Sep8425
Oct8727
Nov9228
Dec8426

Monthly rainfall

Over a full year, Teluk Dalam collects about 3333 mm of rain across 288 wet days — roughly 278 mm in an average month.

It doesn’t fall evenly. November is the wettest month with 441 mm, while June is the driest at just 185 mm. The three wettest months alone bring about 34% of the year’s total.

050100150200250300350400450500JanFebMarAprMayJunJulAugSepOctNovDec233190246289216185225288313373441334
Rainfall (mm)Rain days
Jan23324
Feb19020
Mar24626
Apr28926
May21622
Jun18518
Jul22521
Aug28825
Sep31325
Oct37327
Nov44128
Dec33426

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Teluk Dalam, 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 8 and lasts for 3.1 months, ending around August 10. The clearest month is June, when the sky is clear, mostly clear, or partly cloudy 26% of the time on average.

The cloudier part of the year begins around August 11 and lasts for 4.7 months, ending around December 31. The cloudiest month is November, when it is overcast or mostly cloudy 95% 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%JanFebMarAprMayJunJulAugSepOctNovDecJun 21 · 28%Oct 27 · 5%mostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan1783
Feb2080
Mar1882
Apr1288
May1783
Jun2674
Jul2278
Aug1387
Sep892
Oct694
Nov595
Dec991

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, Teluk Dalam barely changes through the year: days stay near 12 hours of light in every season.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.06:396:37
Feb12.06:446:43
Mar12.06:396:38
Apr12.06:296:29
May12.06:246:26
Jun12.06:286:30
Jul12.06:336:35
Aug12.06:326:33
Sep12.06:236:23
Oct12.06:146:13
Nov12.06:156:13
Dec12.06:266:24

Sunny days

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

Teluk Dalam 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 4 days.

The sunnier stretch runs 3.1 months, from around May 1 to Aug 2. The sunniest month is June, with roughly 4 sunny days (gloomy).

The greyest month is October, down near 0 sunny days — about 89% fewer than the June peak.

0510JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedJun 184 daysOct 270 days
Sunny daysSky
Jan3Gloomy
Feb3Gloomy
Mar2Gloomy
Apr1Gloomy
May2Gloomy
Jun4Gloomy
Jul3Gloomy
Aug1Gloomy
Sep1Gloomy
Oct0Gloomy
Nov0Gloomy
Dec1Gloomy

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.

Teluk Dalam 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
Oppressive (%)Miserable (%)
Jan8020
Feb7426
Mar5545
Apr3862
May3268
Jun5644
Jul7822
Aug8713
Sep8812
Oct8911
Nov8614
Dec8218

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 Teluk Dalam is steady company: average speeds sit near 9 km/hcalm — in every month of the year, with no meaningful windy or calm season.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeNov 24 · 11 km/hMay 25 · 8 km/h
Wind speed (km/h)Feels
Jan9calm
Feb9calm
Mar9calm
Apr8calm
May8calm
Jun8calm
Jul9calm
Aug9calm
Sep10calm
Oct10calm
Nov11calm
Dec10calm

Best time to visit Teluk Dalam

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around early November, Teluk Dalam 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 times of year to visit Teluk Dalam for general outdoor tourist activities run from late April to mid November and again from late November to mid March, with a peak score in the third week of June.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebest timetravel scoretemperaturecloudsprecipitationJun 16 · 4.3

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
Jan3.8fair
Feb3.9fair
Mar3.5poor
Apr3.3poor
May3.8fair
Jun4.2fair
Jul4.1fair
Aug3.8fair
Sep3.8fair
Oct3.7fair
Nov3.5poor
Dec3.7fair

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best times of year to visit Teluk Dalam for hot-weather activities run from early January to mid March and again from early May to mid August, with a peak score in the third week of June.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationJun 16 · 5.5

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 Teluk Dalam, 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.

Teluk Dalam packs about the same all year — highs hold near 29°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 May, Teluk Dalam sees daytime highs around 29°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

Sea temperature near Teluk Dalam

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

The sea offshore is warmest in May at about 30°C and coldest in November 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
Feb30Tropical
Mar30Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index (midday) in Teluk Dalam 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 Teluk Dalam peaks around February 18 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 18UV 15Jul 10UV 11
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar14Extreme
Apr14Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug12Extreme
Sep14Extreme
Oct14Extreme
Nov12Extreme
Dec12Extreme

Average hourly UV index in Teluk Dalam

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)
Jan86
Feb8.56.5
Mar86.5
Apr86.5
May86
Jun7.55.5
Jul7.55.5
Aug86
Sep86
Oct86.5
Nov86
Dec86

Air quality in Teluk Dalam 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 Teluk Dalam is worst in October — around 17 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (December, 10 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodOct 1216 µg/m³Dec 1810 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar12Good
Apr11Good
May11Good
Jun11Good
Jul12Good
Aug11Good
Sep15Moderate
Oct17Moderate
Nov11Good
Dec10Good
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Teluk Dalam 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. Teluk Dalam banks about 6,210 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around May.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan525
Feb483
Mar535
Apr519
May547
Jun527
Jul531
Aug522
Sep500
Oct512
Nov493
Dec516

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.

Teluk Dalam receives about 5.0 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.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmoderatebrightintenseFeb 225.5 kWhNov 154.2 kWh
Solar energy (kWh/m²)Level
Jan5.2Bright
Feb5.5Bright
Mar5.4Bright
Apr5.0Bright
May5.1Bright
Jun5.0Bright
Jul4.9Bright
Aug4.9Bright
Sep5.0Bright
Oct4.7Bright
Nov4.2Bright
Dec4.5Bright

Where is Teluk Dalam?

Teluk Dalam sits at 0.6°N, 97.8°E, 41 m above sea level, in Indonesia. The nearest listed city is Gunungsitoli, 82 km away.

Topography around Teluk Dalam

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

Within 3 km, the terrain around Teluk Dalam has only modest variations in elevation — a maximum elevation change of 168 m around an average of 29 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 480 m; within 80 km, large variations in elevation — a maximum elevation change of 837 m.

The land around Teluk Dalam is covered by trees (66%) and water (22%) within 3 km, water (59%) and trees (39%) within 16 km, and water (80%) and trees (20%) within 80 km.

3 km
168 m
16 km
480 m
80 km
837 m
treesgrasslandcroplandartificial surfaceswater
Nearby: Gunungsitoli 82 km · Lahewa 116 km · Sibolga 169 km · Barus 173 km · Padangsidempuan 186 km · Singkil 191 km · Tarutung 206 km · Subulussalam 232 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 Teluk Dalam (0.5729°, 97.8034°, elevation 41 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. 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).