Ambon in Summer
In summer (December, January and February), Ambon sees average daytime highs around 28°C and overnight lows near 27°C, with 439 mm of rain over about 67 wet days across the season. It is the warmest season of the year and the 3rd-wettest season.
Across summer, daytime highs hold fairly steady around 28°C. The sky is clear or mostly clear about 6% of the time across summer, and the air most often feels oppressive.
Summer is Ambon's weakest season of the year to visit on our travel score. Ambon 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 Ambon's year-round climate.
- Avg daytime high
- 28°C
- warmest season of the year
- Avg overnight low
- 27°C
- Rainfall
- 439 mm
- 67 wet days
- Avg wind
- 17 km/h
- Travel score
- 4.1
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Ambon in Summer
Across summer, daytime highs hold fairly steady around 28°C.
A typical summer day in Ambon reaches about 28°C and drops to 27°C overnight. The warmest of the three months is December, the coolest December.
How summer really feels in Ambon
Once humidity and wind are folded in, summer brings about 59 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.
Ambon 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 | 28° / 27° | 161 | 23.6 | 12.2 | 4.1 |
| Feb | 28° / 27° | 121 | 19.8 | 12.1 | 4.3 |
| Mar | 28° / 26° | 158 | 22.8 | 12 | 4.3 |
| Apr | 28° / 26° | 203 | 24.9 | 11.9 | 4.0 |
| May | 27° / 26° | 230 | 24.6 | 11.8 | 4.3 |
| Jun | 26° / 25° | 241 | 23.9 | 11.8 | 4.4 |
| Jul | 26° / 25° | 175 | 21.9 | 11.8 | 4.8 |
| Aug | 26° / 25° | 100 | 16.7 | 11.9 | 5.7 |
| Sep | 26° / 25° | 71 | 14.3 | 12 | 5.8 |
| Oct | 27° / 26° | 70 | 15 | 12.1 | 5.7 |
| Nov | 28° / 26° | 79 | 16.6 | 12.2 | 5.2 |
| Dec | 28° / 27° | 157 | 23.8 | 12.2 | 3.9 |
Cloud cover in Summer
The sky is clear or mostly clear about 6% of the time across summer.
Chance of precipitation in Summer
Ambon gets around 439 mm of rain over 67 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 17 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 12 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 5.6 kWh/m².
Is summer a good time to visit Ambon?
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 Ambon for sightseeing.
What to pack for Ambon in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Ambon sees daytime highs around 28°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection. About 67 days see rain.
Sea temperature near Ambon 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 offshore is warmest in April at about 29°C and coldest in August near 27°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 | 28 | 27 | 27 | 27 | 28 | 29 | 29 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 29 | Tropical |
| Mar | 29 | Tropical |
| Apr | 29 | Tropical |
| May | 29 | Tropical |
| Jun | 28 | Warm |
| Jul | 27 | Warm |
| Aug | 27 | Warm |
| Sep | 27 | Warm |
| Oct | 28 | Tropical |
| Nov | 29 | Tropical |
| Dec | 29 | Tropical |
UV index in Ambon in Summer
Clear-sky midday UV across summer averages around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Ambon peaks around February 19 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 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 | 16 | 15 | 14 | 12 | 11 | 11 | 12 | 14 | 15 | 13 | 12 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 16 | Extreme |
| Mar | 15 | Extreme |
| Apr | 14 | Extreme |
| May | 12 | Extreme |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 12 | Extreme |
| Sep | 14 | Extreme |
| Oct | 15 | Extreme |
| Nov | 13 | Extreme |
| Dec | 12 | Extreme |
Where is Ambon?
Ambon sits at 3.7°S, 128.2°E, 12 m above sea level, in Indonesia. The nearest listed city is Amahai, 91 km away.
Topography around Ambon
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ambon.
Within 3 km, the terrain around Ambon has significant variations in elevation — a maximum elevation change of 344 m around an average of 62 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 875 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,302 m.
The land around Ambon is covered by trees (40%), water (33%) and artificial surfaces (25%) within 3 km, water (49%) and trees (47%) within 16 km, and water (72%) and trees (27%) 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 Ambon (-3.6958°, 128.1833°, elevation 12 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.