Tarutung in Fall
In fall (September, October and November), Tarutung sees average daytime highs around 26°C and overnight lows near 17°C, with 1018 mm of rain over about 80 wet days across the season. It is the coldest season of the year and the wettest season of the year.
Across fall, daytime highs hold fairly steady around 26°C. The sky is clear or mostly clear about 0% of the time across fall, and the air most often feels muggy.
Fall is Tarutung's weakest season of the year to visit on our travel score. For the whole year in context, see Tarutung's year-round climate.
- Avg daytime high
- 26°C
- coldest season of the year
- Avg overnight low
- 17°C
- Rainfall
- 1018 mm
- 80 wet days
- Avg wind
- 4 km/h
- Travel score
- 3.8
- weakest season of the year
- Months
- Sep · Oct · Nov
Temperature in Tarutung in Fall
Across fall, daytime highs hold fairly steady around 26°C.
A typical fall day in Tarutung reaches about 26°C and drops to 17°C overnight. The warmest of the three months is September, the coolest September.
Tarutung weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 26° / 18° | 261 | 24.8 | 11.9 | 4.1 |
| Feb | 27° / 18° | 235 | 21.7 | 11.9 | 4.2 |
| Mar | 27° / 18° | 266 | 26.2 | 12 | 3.9 |
| Apr | 27° / 18° | 325 | 27.4 | 12 | 3.6 |
| May | 27° / 18° | 218 | 23.4 | 12.1 | 4.2 |
| Jun | 27° / 17° | 142 | 18.1 | 12.1 | 4.9 |
| Jul | 26° / 17° | 167 | 19.6 | 12.1 | 4.9 |
| Aug | 26° / 17° | 241 | 23 | 12.1 | 4.4 |
| Sep | 26° / 17° | 256 | 24.4 | 12 | 4.1 |
| Oct | 26° / 17° | 361 | 26.7 | 12 | 3.9 |
| Nov | 26° / 18° | 400 | 28.5 | 11.9 | 3.5 |
| Dec | 26° / 18° | 345 | 28 | 11.9 | 3.7 |
Cloud cover in Fall
The sky is clear or mostly clear about 0% of the time across fall.
Chance of precipitation in Fall
Tarutung gets around 1018 mm of rain over 80 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 4 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 hours in early September to 11 h 54 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 4.4 kWh/m².
Hazard calendar for Tarutung
In fall, Tarutung overlaps 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.
Is fall a good time to visit Tarutung?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a weaker month for outdoor sightseeing in Tarutung.
What to pack for Tarutung in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Tarutung sees daytime highs around 26°C and nights near 17°C. Pack rain gear. Worth having: light clothes and sun protection. About 80 days see rain.
Sea temperature near Tarutung in Fall
The nearest coast averages about 29°C across fall — 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 29 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | 29 | 29 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 30 | Tropical |
| Mar | 30 | Tropical |
| Apr | 30 | Tropical |
| May | 30 | Tropical |
| Jun | 30 | Tropical |
| Jul | 30 | Tropical |
| Aug | 30 | Tropical |
| Sep | 30 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 29 | Tropical |
UV index in Tarutung in Fall
Clear-sky midday UV across fall averages around 13 (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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 12 | 15 | 14 | 13 | 12 | 11 | 11 | 11 | 14 | 14 | 12 | 12 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 12 | Extreme |
| Feb | 15 | Extreme |
| Mar | 14 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 14 | Extreme |
| Oct | 14 | Extreme |
| Nov | 12 | Extreme |
| Dec | 12 | Extreme |
Air quality in Tarutung in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall 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).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 17 | 20 | 22 | 19 | 18 | 18 | 19 | 18 | 22 | 23 | 15 | 15 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 17 | Moderate |
| Feb | 20 | Moderate |
| Mar | 22 | Moderate |
| Apr | 19 | Moderate |
| May | 18 | Moderate |
| Jun | 18 | Moderate |
| Jul | 19 | Moderate |
| Aug | 18 | Moderate |
| Sep | 22 | Moderate |
| Oct | 23 | Moderate |
| Nov | 15 | Moderate |
| Dec | 15 | Moderate |
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.
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
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.