Tarutung weather in August

In August, Tarutung sees average daytime highs of 26°C and overnight lows near 17°C, with 241 mm of rain across 23 wet days and about 12.1 hours of daylight. It is the 8th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 1% of the time in August, and the air most often feels muggy.

Daylight stretches from about 12 h 06 min at the start of August to 12 hours by month's end. Set against the rest of the year, August is Tarutung's 7th-clearest and 2nd-windiest month. For the whole year in context, see Tarutung's year-round climate.

Daytime high
26°
8th warmest
Overnight low
17°
2nd coldest
Rainfall
241 mm
23 wet days
Daylight
12 h 06 min
6:26 AM – 6:30 PM
Cloud cover
89%
7th clearest
Wind
5 km/h
2nd windiest
Solar energy
4.83 kWh/m²
Travel score
4.4
out of 10

Tarutung is capital of North Tapanuli Regency in North Sumatra Province, Indonesia.

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical August day in Tarutung reaches about 26°C in the afternoon and slips back to 17°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 28°C. Set against its neighbours, August runs on par with July and on par with September.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12617
22617
32617
42617
52617
62617
72617
82617
92617
102617
112617
122617
132617
142617
152617
162617
172617
182617
192617
202617
212617
222617
232617
242617
252617
262617
272617
282617
292617
302617
312617

Tarutung weather by month

How August compares with the rest of the year at a glance. August is the 8th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 18°26124.811.94.1
Feb27° / 18°23521.711.94.2
Mar27° / 18°26626.2123.9
Apr27° / 18°32527.4123.6
May27° / 18°21823.412.14.2
Jun27° / 17°14218.112.14.9
Jul26° / 17°16719.612.14.9
Aug26° / 17°2412312.14.4
Sep26° / 17°25624.4124.1
Oct26° / 17°36126.7123.9
Nov26° / 18°40028.511.93.5
Dec26° / 18°3452811.93.7

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 5% of August, with mostly cloudy or overcast conditions the remaining 94%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11189
21189
31090
41090
51090
6991
7991
8892
9892
10793
11694
12694
13694
14595
15595
16595
17595
18595
19496
20496
21496
22496
23496
24496
25496
26496
27496
28496
29496
30496
31496

Chance of precipitation in August

Any precipitation

Tarutung gets around 241 mm of rain over 23 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 75% and peaks near 81% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
163
263
364
465
566
667
768
869
970
1071
1172
1273
1375
1475
1576
1677
1777
1878
1978
2079
2180
2280
2380
2481
2581
2681
2781
2881
2981
3081
3181

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the muggy band about 55% of days. Sticky, muggy-or-worse air turns up on roughly 55% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)
115445
215346
315346
415247
515247
615148
715049
814950
914851
1014752
1114653
1214554
1314455
1404357
1504258
1604258
1704159
1804159
1904159
2004060
2104060
2204060
2304060
2404060
2504060
2604060
2704060
2804060
2904060
3004060
3104060

Wind in August

Winds average 5 km/h in August.

Across August, daily wind ranges from about 4 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 06 min at the start of August to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over August. Sunrise moves from 6:28 AM to 6:23 AM, and sunset from 6:33 PM to 6:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:286:33
212.16:286:33
312.16:276:33
412.16:276:33
512.16:276:32
612.16:276:32
712.16:276:32
812.16:276:32
912.16:276:32
1012.16:276:32
1112.16:276:31
1212.16:276:31
1312.16:276:31
1412.16:276:31
1512.16:266:30
1612.16:266:30
1712.16:266:30
1812.16:266:30
1912.16:266:29
2012.16:266:29
2112.16:256:29
2212.16:256:29
2312.16:256:28
2412.16:256:28
2512.16:246:28
2612.06:246:27
2712.06:246:27
2812.06:246:26
2912.06:236:26
3012.06:236:26
3112.06:236:25

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.83 kWh/m².

For context, solar energy here swings from a low near 3.9 kWh/m² to a high of 5.14 kWh/m² in February across the year — August's 4.83 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.7Bright
284.7Bright
294.8Bright
304.8Bright
314.8Bright
Planning a trip in August

Hazard calendar for Tarutung

In seasonPeak

None of Tarutung's seasonal hazards are active in August. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Tarutung sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.

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

Is August a good time to visit Tarutung?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.4
Sightseeing
3rd-best month of the year
4.2
Beach & pool
5th-best month of the year

August is a reasonable time to visit Tarutung for sightseeing.

What to pack for Tarutung in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Tarutung sees daytime highs around 26°C and nights near 17°C. Pack rain gear. Worth having: light clothes and sun protection. About 23 days see rain.

rain gearlight clothessun protection

Sea temperature near Tarutung in August

The nearest coast averages about 30°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 41 km away) is warmest in March 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
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Tarutung in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tarutung peaks around February 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 21UV 15Jun 18UV 11
UV index (midday)Level
Jan12Extreme
Feb15Extreme
Mar14Extreme
Apr13Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep14Extreme
Oct14Extreme
Nov12Extreme
Dec12Extreme

Air quality in Tarutung in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Tarutung is worst in October — around 23 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateOct 1123 µg/m³Dec 1015 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb20Moderate
Mar22Moderate
Apr19Moderate
May18Moderate
Jun18Moderate
Jul19Moderate
Aug18Moderate
Sep22Moderate
Oct23Moderate
Nov15Moderate
Dec15Moderate
Location & terrain

Where is Tarutung?

Tarutung sits at 2.0°N, 99.0°E, 948 m above sea level, in Indonesia. The nearest listed city is Sibolga, 37 km away.

Topography around Tarutung

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

Within 3 km, the terrain around Tarutung has significant variations in elevation — a maximum elevation change of 493 m around an average of 1,012 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,310 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,257 m.

The land around Tarutung is covered by trees (52%) and cropland (30%) within 3 km, trees (78%) within 16 km, and trees (73%) within 80 km.

3 km
493 m
16 km
1,310 m
80 km
2,257 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Sibolga 37 km · Barus 63 km · Pangururan 72 km · Padangsidempuan 78 km · Bandar 87 km · Rantauprapat 97 km · Pematangsiantar 106 km · Paropo 107 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 Tarutung (2.0147°, 98.9655°, elevation 948 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).