Gunungsitoli in Fall

In fall (September, October and November), Gunungsitoli sees average daytime highs around 29°C and overnight lows near 25°C, with 1335 mm of rain over about 85 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 29°C. The sky is clear or mostly clear about 0% of the time across fall, and the air most often feels miserable.

Fall is Gunungsitoli's 3rd-best season to visit on our travel score. Gunungsitoli 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 Gunungsitoli's year-round climate.

Avg daytime high
29°C
coldest season of the year
Avg overnight low
25°C
Rainfall
1335 mm
85 wet days
Avg wind
6 km/h
Travel score
3.0
3rd-best season
Months
Sep · Oct · Nov

Temperature in Gunungsitoli in Fall

Average highAverage lowShaded bands: 10–90% of days

Across fall, daytime highs hold fairly steady around 29°C.

A typical fall day in Gunungsitoli reaches about 29°C and drops to 25°C overnight. The warmest of the three months is September, the coolest November.

20°25°30°35°SepOctNov

How fall really feels in Gunungsitoli

Once humidity and wind are folded in, fall brings about 91 days that feel above 32°C and 0 that feel at or below 0°C.

Days feeling ≥ 32°C
91
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Gunungsitoli 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.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 25°2832611.93.1
Feb30° / 25°23523123.1
Mar30° / 25°31228.3122.7
Apr30° / 25°36028.2122.7
May30° / 25°28525.412.13.0
Jun30° / 25°23322.312.13.4
Jul30° / 25°26824.412.13.3
Aug29° / 25°33327123.1
Sep29° / 25°35227.3123.0
Oct29° / 25°47128.8123.0
Nov29° / 25°51128.711.92.9
Dec29° / 25°39928.411.93.0

Cloud cover in Fall

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time across fall.

0%25%50%75%100%SepOctNov

Chance of precipitation in Fall

Any precipitation

Gunungsitoli gets around 1335 mm of rain over 85 wet days across fall. The line is the day-by-day chance of measurable precipitation.

0%20%40%60%80%100%SepOctNov

Humidity in Fall

DryComfortableHumidMuggyOppressiveMiserable

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

0%25%50%75%100%SepOctNov

Wind in Fall

Winds average 6 km/h across fall.

0246810SepOctNov

Sunrise & sunset in Fall

DaylightNight

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.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMSepOctNov

Solar energy in Fall

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across fall, about 4.3 kWh/m².

024SepOctNov
Planning a trip in fall

Is fall a good time to visit Gunungsitoli?

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.

3.0
Sightseeing
3rd-best month of the year
3.8
Beach & pool
4th-best month of the year

fall is a weaker month for outdoor sightseeing in Gunungsitoli.

What to pack for Gunungsitoli in Fall

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

In fall, Gunungsitoli sees daytime highs around 29°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 85 days see rain.

light clothesrain gearsun protection

Sea temperature near Gunungsitoli 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 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 in Gunungsitoli in Fall

LowModerateHighVery highExtreme

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 Gunungsitoli peaks around February 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 19UV 14Jul 11UV 11
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar14Extreme
Apr14Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug12Extreme
Sep14Extreme
Oct14Extreme
Nov12Extreme
Dec12Extreme
Location & terrain

Where is Gunungsitoli?

Gunungsitoli sits at 1.3°N, 97.6°E, 14 m above sea level, in Indonesia. The nearest listed city is Lahewa, 51 km away.

Topography around Gunungsitoli

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

Within 3 km, the terrain around Gunungsitoli has only modest variations in elevation — a maximum elevation change of 223 m around an average of 42 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 367 m; within 80 km, large variations in elevation — a maximum elevation change of 834 m.

The land around Gunungsitoli is covered by trees (51%) and water (37%) within 3 km, trees (50%) and water (48%) within 16 km, and water (79%) and trees (21%) within 80 km.

3 km
223 m
16 km
367 m
80 km
834 m
treesgrasslandcroplandartificial surfaceswater
Fall weather nearby: Lahewa 51 km · Teluk Dalam 82 km · Singkil 113 km · Barus 118 km · Sibolga 139 km · Subulussalam 156 km · Tarutung 170 km · Sidikalang 180 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 Gunungsitoli (1.2888°, 97.6143°, elevation 14 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.