Bitung in Fall
In fall (September, October and November), Bitung sees average daytime highs around 29°C and overnight lows near 25°C, with 357 mm of rain over about 53 wet days across the season. It is the warmest season of the year and the driest season of the year.
Across fall, daytime highs hold fairly steady around 29°C. The sky is clear or mostly clear about 16% of the time across fall, and the air most often feels oppressive.
Fall is Bitung's 2nd-best season to visit on our travel score. Bitung 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 Bitung's year-round climate.
- Avg daytime high
- 29°C
- warmest season of the year
- Avg overnight low
- 25°C
- Rainfall
- 357 mm
- 53 wet days
- Avg wind
- 9 km/h
- Travel score
- 4.4
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Bitung in Fall
Across fall, daytime highs hold fairly steady around 29°C.
A typical fall day in Bitung reaches about 29°C and drops to 25°C overnight. The warmest of the three months is October, the coolest September.
How fall really feels in Bitung
Once humidity and wind are folded in, fall brings about 89 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Bitung 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° / 25° | 178 | 25 | 11.9 | 3.7 |
| Feb | 28° / 25° | 165 | 21.2 | 12 | 3.9 |
| Mar | 29° / 25° | 155 | 22.9 | 12 | 3.9 |
| Apr | 29° / 26° | 188 | 23.6 | 12 | 3.6 |
| May | 29° / 26° | 222 | 25.4 | 12.1 | 3.6 |
| Jun | 29° / 25° | 220 | 22.7 | 12.1 | 3.9 |
| Jul | 28° / 25° | 146 | 18 | 12.1 | 4.8 |
| Aug | 28° / 25° | 74 | 10.1 | 12 | 5.7 |
| Sep | 29° / 25° | 66 | 11.2 | 12 | 5.3 |
| Oct | 29° / 25° | 126 | 17.3 | 12 | 4.4 |
| Nov | 29° / 26° | 164 | 24.7 | 11.9 | 3.4 |
| Dec | 29° / 26° | 172 | 25.8 | 11.9 | 3.5 |
Cloud cover in Fall
The sky is clear or mostly clear about 16% of the time across fall.
Chance of precipitation in Fall
Bitung gets around 357 mm of rain over 53 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 9 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 6.1 kWh/m².
Is fall a good time to visit Bitung?
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 reasonable time to visit Bitung for sightseeing.
What to pack for Bitung in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Bitung sees daytime highs around 29°C and nights near 25°C. Pack light clothes, rain gear and sun protection. About 53 days see rain.
Sea temperature near Bitung 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 29°C and coldest in August near 28°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 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 29 | 29 | 29 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 29 | Tropical |
| Mar | 29 | Tropical |
| Apr | 29 | Tropical |
| May | 29 | Tropical |
| Jun | 29 | Tropical |
| Jul | 28 | Tropical |
| Aug | 28 | Warm |
| Sep | 28 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 29 | Tropical |
UV index in Bitung 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 Bitung peaks around March 11 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 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) | 14 | 15 | 15 | 14 | 12 | 12 | 11 | 12 | 13 | 13 | 12 | 12 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 15 | Extreme |
| Mar | 15 | Extreme |
| Apr | 14 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 11 | Extreme |
| Aug | 12 | Extreme |
| Sep | 13 | Extreme |
| Oct | 13 | Extreme |
| Nov | 12 | Extreme |
| Dec | 12 | Extreme |
Where is Bitung?
Bitung sits at 1.4°N, 125.1°E, 21 m above sea level, in Indonesia. The nearest listed city is Tondano, 28 km away.
Topography around Bitung
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Bitung.
Within 3 km, the terrain around Bitung has significant variations in elevation — a maximum elevation change of 252 m around an average of 58 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,978 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,962 m.
The land around Bitung is covered by trees (41%), artificial surfaces (26%) and water (24%) within 3 km, trees (60%) and water (33%) within 16 km, and water (72%) and trees (25%) 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 Bitung (1.4406°, 125.1282°, elevation 21 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.