Sibolga in Fall
In fall (September, October and November), Sibolga sees average daytime highs around 28°C and overnight lows near 23°C, with 1228 mm of rain over about 77 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 28°C. The sky is clear or mostly clear about 1% of the time across fall, and the air most often feels oppressive.
Fall is Sibolga's 2nd-best season to visit on our travel score. Sibolga has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Sibolga's year-round climate.
- Avg daytime high
- 28°C
- coldest season of the year
- Avg overnight low
- 23°C
- Rainfall
- 1228 mm
- 77 wet days
- Avg wind
- 5 km/h
- Travel score
- 3.8
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Sibolga in Fall
Across fall, daytime highs hold fairly steady around 28°C.
A typical fall day in Sibolga reaches about 28°C and drops to 23°C overnight. The warmest of the three months is September, the coolest September.
How fall really feels in Sibolga
Once humidity and wind are folded in, fall brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
fall sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Sibolga 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 | 28° / 24° | 338 | 26.7 | 11.9 | 3.5 |
| Feb | 29° / 24° | 311 | 23.7 | 11.9 | 3.4 |
| Mar | 29° / 24° | 361 | 27.4 | 12 | 3.2 |
| Apr | 29° / 24° | 357 | 26.7 | 12 | 3.2 |
| May | 29° / 24° | 260 | 21.6 | 12.1 | 3.9 |
| Jun | 29° / 24° | 159 | 17.3 | 12.1 | 4.4 |
| Jul | 28° / 24° | 193 | 19.1 | 12.1 | 4.6 |
| Aug | 28° / 23° | 284 | 22.8 | 12.1 | 4.2 |
| Sep | 28° / 23° | 293 | 23.2 | 12 | 4.1 |
| Oct | 28° / 23° | 428 | 26.1 | 12 | 3.8 |
| Nov | 27° / 23° | 507 | 27.7 | 11.9 | 3.4 |
| Dec | 28° / 24° | 433 | 27.6 | 11.9 | 3.6 |
Cloud cover in Fall
The sky is clear or mostly clear about 1% of the time across fall.
Chance of precipitation in Fall
Sibolga gets around 1228 mm of rain over 77 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 5 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 4.6 kWh/m².
Is fall a good time to visit Sibolga?
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 Sibolga.
What to pack for Sibolga in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Sibolga sees daytime highs around 28°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 77 days see rain.
Sea temperature near Sibolga 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 22 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 Sibolga 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 Sibolga peaks around February 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 11 at about 10 (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 | 14 | 13 | 13 | 11 | 11 | 11 | 10 | 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 | 14 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 11 | Extreme |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 10 | Extreme |
| Sep | 14 | Extreme |
| Oct | 14 | Extreme |
| Nov | 12 | Extreme |
| Dec | 12 | Extreme |
Air quality in Sibolga 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 Sibolga is worst in October — around 20 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (December, 12 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 14 | 18 | 17 | 15 | 15 | 14 | 15 | 14 | 19 | 20 | 12 | 12 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 14 | Moderate |
| Feb | 18 | Moderate |
| Mar | 17 | Moderate |
| Apr | 15 | Moderate |
| May | 15 | Moderate |
| Jun | 14 | Moderate |
| Jul | 15 | Moderate |
| Aug | 14 | Moderate |
| Sep | 19 | Moderate |
| Oct | 20 | Moderate |
| Nov | 12 | Moderate |
| Dec | 12 | Moderate |
Where is Sibolga?
Sibolga sits at 1.7°N, 98.8°E, 6 m above sea level, in Indonesia. The nearest listed city is Tarutung, 37 km away.
Topography around Sibolga
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sibolga.
Within 3 km, the terrain around Sibolga has significant variations in elevation — a maximum elevation change of 471 m around an average of 77 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,065 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,230 m.
The land around Sibolga is covered by trees (44%) and water (41%) within 3 km, trees (59%) and water (35%) within 16 km, and trees (58%) and water (36%) 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 Sibolga (1.7402°, 98.7812°, elevation 6 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.