Tarutung weather in October

In October, Tarutung sees average daytime highs of 26°C and overnight lows near 17°C, with 361 mm of rain across 26.7 wet days and about 12 hours of daylight. It is the 11th-warmest and 2nd-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 0% of the time in October, and the air most often feels muggy.

Daylight stretches from about 12 hours at the start of October to 11 h 54 min by month's end. Set against the rest of the year, October is Tarutung's 10th-clearest and 5th-windiest month. For the whole year in context, see Tarutung's year-round climate.

Daytime high
26°
11th warmest
Overnight low
17°
5th coldest
Rainfall
361 mm
26.7 wet days
Daylight
12 hours
6:11 AM – 6:08 PM
Cloud cover
94%
10th clearest
Wind
4 km/h
5th windiest
Solar energy
4.44 kWh/m²
Travel score
3.9
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 October

Average highAverage lowShaded bands: 10–90% of days

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

A typical October day in Tarutung reaches about 26°C in the afternoon and slips back to 17°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 28°C. Set against its neighbours, October runs on par with September and on par with November.

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
222618
232618
242618
252618
262618
272618
282618
292618
302618
312618

Tarutung weather by month

How October compares with the rest of the year at a glance. October is the 11th-warmest and 2nd-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 October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 2% of October, with mostly cloudy or overcast conditions the remaining 98%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1298
2298
3298
4298
5298
6298
7298
8298
9298
10298
11298
12298
13298
14298
15298
16298
17298
18298
19298
20298
21298
22298
23298
24298
25199
26199
27199
28298
29298
30298
31298

Chance of precipitation in October

Any precipitation

Tarutung gets around 361 mm of rain over 26.7 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 86% and peaks near 91% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
184
283
383
483
583
683
783
883
983
1083
1183
1284
1384
1485
1585
1686
1787
1887
1988
2088
2188
2289
2389
2489
2590
2690
2790
2891
2991
3091
3191

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the muggy band about 68% of days. Sticky, muggy-or-worse air turns up on roughly 68% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)
13763
23862
33862
43862
53862
63862
73763
83763
93763
103763
113664
123664
133565
143565
153466
163367
173268
183169
193070
203070
212971
222872
232773
242674
252575
262575
272476
282377
292278
302179
312179

Wind in October

Winds average 4 km/h in October.

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

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 hours at the start of October to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over October. Sunrise moves from 6:14 AM to 6:10 AM, and sunset from 6:13 PM to 6:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:146:13
212.06:136:12
312.06:136:12
412.06:136:11
512.06:136:11
612.06:126:11
712.06:126:10
812.06:126:10
912.06:126:10
1012.06:126:09
1112.06:116:09
1212.06:116:09
1312.06:116:09
1412.06:116:08
1512.06:116:08
1612.06:116:08
1712.06:106:08
1812.06:106:07
1911.96:106:07
2011.96:106:07
2111.96:106:07
2211.96:106:07
2311.96:106:06
2411.96:106:06
2511.96:106:06
2611.96:106:06
2711.96:106:06
2811.96:106:06
2911.96:106:06
3011.96:106:06
3111.96:106:06

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.44 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 — October's 4.44 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.6Bright
44.6Bright
54.6Bright
64.6Bright
74.6Bright
84.6Bright
94.6Bright
104.5Bright
114.5Bright
124.5Bright
134.5Bright
144.5Bright
154.5Bright
164.4Bright
174.4Bright
184.4Bright
194.4Bright
204.4Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.2Bright
264.2Bright
274.2Bright
284.2Bright
294.1Bright
304.1Bright
314.1Bright
Planning a trip in October

Hazard calendar for Tarutung

In seasonPeak

In October, Tarutung sits inside its cyclone season. The full year is below, with each hazard's peak months called out.

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 October a good time to visit Tarutung?

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

3.9
Sightseeing
8th-best month of the year
3.7
Beach & pool
10th-best month of the year

October is a weaker month for outdoor sightseeing in Tarutung.

What to pack for Tarutung in October

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

In October, Tarutung sees daytime highs around 26°C and nights near 17°C. Pack rain gear. Worth having: light clothes. About 27 days see rain.

rain gearlight clothes

Sea temperature near Tarutung in October

The nearest coast averages about 29°C in October — 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 October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 14 (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 October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October 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
October 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).