Bulakamba in Summer
In summer (December, January and February), Bulakamba sees average daytime highs around 29°C and overnight lows near 26°C, with 946 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 summer, daytime highs hold fairly steady around 29°C. The sky is clear or mostly clear about 2% of the time across summer, and the air most often feels miserable.
Summer is Bulakamba's weakest season of the year to visit on our travel score. Bulakamba 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 Bulakamba's year-round climate.
- Avg daytime high
- 29°C
- coldest season of the year
- Avg overnight low
- 26°C
- Rainfall
- 946 mm
- 85 wet days
- Avg wind
- 9 km/h
- Travel score
- 2.9
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Bulakamba in Summer
Across summer, daytime highs hold fairly steady around 29°C.
A typical summer day in Bulakamba reaches about 29°C and drops to 26°C overnight. The warmest of the three months is December, the coolest February.
How summer really feels in Bulakamba
Once humidity and wind are folded in, summer brings about 90 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.
Bulakamba weather by month
How the three summer months (December, January and February) 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 | 29° / 26° | 345 | 29.1 | 12.4 | 2.9 |
| Feb | 29° / 26° | 296 | 27.2 | 12.2 | 2.9 |
| Mar | 29° / 26° | 272 | 29.1 | 12 | 2.9 |
| Apr | 30° / 26° | 206 | 26.1 | 11.9 | 3.1 |
| May | 30° / 26° | 113 | 18.5 | 11.7 | 4.1 |
| Jun | 30° / 26° | 75 | 12.2 | 11.6 | 4.9 |
| Jul | 30° / 25° | 44 | 7.5 | 11.6 | 5.7 |
| Aug | 30° / 25° | 21 | 4.9 | 11.8 | 5.9 |
| Sep | 30° / 25° | 28 | 5.1 | 12 | 5.4 |
| Oct | 31° / 26° | 92 | 12.8 | 12.2 | 4.4 |
| Nov | 30° / 26° | 216 | 23.1 | 12.3 | 3.3 |
| Dec | 29° / 26° | 305 | 28.2 | 12.4 | 2.9 |
Cloud cover in Summer
The sky is clear or mostly clear about 2% of the time across summer.
Chance of precipitation in Summer
Bulakamba gets around 946 mm of rain over 85 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 9 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 24 min in early December to 12 h 06 min by late February. 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 5.0 kWh/m².
Hazard calendar for Bulakamba
In summer, Bulakamba overlaps its cyclone and monsoon season. The full year is below, with each hazard's peak months called out.
Bulakamba sits in the South Indian Ocean cyclone belt; the season peaks January–March.
Bulakamba's monsoon runs November–April, when most of the year's rain falls.
Is summer a good time to visit Bulakamba?
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 weaker month for outdoor sightseeing in Bulakamba.
What to pack for Bulakamba in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Bulakamba sees daytime highs around 29°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 85 days see rain.
Sea temperature near Bulakamba in Summer
The nearest coast averages about 29°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 19 km away) is warmest in May at about 30°C and coldest in February 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 | 29 | 29 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 30 | 30 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 29 | Tropical |
| Mar | 29 | Tropical |
| Apr | 30 | Tropical |
| May | 30 | Tropical |
| Jun | 30 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 30 | Tropical |
| Dec | 30 | Tropical |
UV index in Bulakamba 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 Bulakamba peaks around March 14 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 16 at about 7 (very high).
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 | 12 | 14 | 11 | 8 | 7 | 9 | 11 | 12 | 12 | 7 | 12 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Extreme | Extreme | Extreme | High | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 12 | Extreme |
| Feb | 12 | Extreme |
| Mar | 14 | Extreme |
| Apr | 11 | Extreme |
| May | 8 | Very high |
| Jun | 7 | Very high |
| Jul | 9 | Very high |
| Aug | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 12 | Extreme |
| Nov | 7 | High |
| Dec | 12 | Extreme |
Air quality in Bulakamba in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Bulakamba is worst in May — around 54 µg/m³ PM2.5 (poor), 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) | 47 | 46 | 52 | 51 | 54 | 51 | 46 | 44 | 44 | 45 | 44 | 46 |
| Level | Poor | Poor | Poor | Poor | Poor | Poor | Poor | Poor | Poor | Poor | Poor | Poor |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 47 | Poor |
| Feb | 46 | Poor |
| Mar | 52 | Poor |
| Apr | 51 | Poor |
| May | 54 | Poor |
| Jun | 51 | Poor |
| Jul | 46 | Poor |
| Aug | 44 | Poor |
| Sep | 44 | Poor |
| Oct | 45 | Poor |
| Nov | 44 | Poor |
| Dec | 46 | Poor |
Where is Bulakamba?
Bulakamba sits at 6.9°S, 109.0°E, 5 m above sea level, in Indonesia. The nearest listed city is Ketanggungan, 10 km away.
Topography around Bulakamba
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Bulakamba.
Within 3 km, the terrain around Bulakamba has only modest variations in elevation — a maximum elevation change of 12 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 72 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,396 m.
The land around Bulakamba is covered by cropland (72%) within 3 km, cropland (44%) and water (32%) within 16 km, and trees (43%), water (31%) and cropland (20%) 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 Bulakamba (-6.8748°, 108.9559°, elevation 5 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.