Bitung in Summer
In summer (June, July and August), Bitung sees average daytime highs around 28°C and overnight lows near 25°C, with 440 mm of rain over about 51 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Across summer, daytime highs hold fairly steady around 28°C. The sky is clear or mostly clear about 20% of the time across summer, and the air most often feels oppressive.
Summer is Bitung's best season of the year 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
- 28°C
- 3rd-warmest season
- Avg overnight low
- 25°C
- Rainfall
- 440 mm
- 51 wet days
- Avg wind
- 13 km/h
- Travel score
- 4.8
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Bitung in Summer
Across summer, daytime highs hold fairly steady around 28°C.
A typical summer day in Bitung reaches about 28°C and drops to 25°C overnight. The warmest of the three months is June, the coolest August.
How summer really feels in Bitung
Once humidity and wind are folded in, summer brings about 29 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Bitung weather by month
How the three summer months (June, July and August) 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 Summer
The sky is clear or mostly clear about 20% of the time across summer.
Chance of precipitation in Summer
Bitung gets around 440 mm of rain over 51 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 13 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 06 min in early June to 12 hours by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.6 kWh/m².
Is summer a good time to visit Bitung?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Bitung for sightseeing.
What to pack for Bitung in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Bitung sees daytime highs around 28°C and nights near 25°C. Pack light clothes, rain gear and sun protection. About 51 days see rain.
Sea temperature near Bitung in Summer
The nearest coast averages about 28°C across summer — 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 Summer
Clear-sky midday UV across summer averages around 12 (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.