Ambon climate

Indonesia · 3.70°S, 128.18°E · elevation 12 m · population 347,288

Warmest month
December
high 29 °C84 °F
Coldest month
August
low 24 °C75 °F
Wettest month
June
444 mm17 in
Best time to visit
October and November
by our comfort score
Annual precipitation
2,655 mm105 in
November driest
Year average
27 °C80 °F
tropical rainforest (Af)

Ambon (Indonesia) has a tropical rainforest climate (Köppen Af). The average temperature over the year is 27 °C80 °F, and about 2,655 mm105 in of precipitation falls in an average year.

Temperature by month

Average highAverage low
20°25°30°35°70°80°90°JFMAMJJASOND29°85°24°75°January: high 29 °C / 84 °F, low 26 °C / 79 °FFebruary: high 29 °C / 84 °F, low 26 °C / 79 °FMarch: high 29 °C / 84 °F, low 26 °C / 79 °FApril: high 29 °C / 83 °F, low 26 °C / 80 °FMay: high 28 °C / 83 °F, low 26 °C / 79 °FJune: high 27 °C / 81 °F, low 25 °C / 77 °FJuly: high 27 °C / 80 °F, low 24 °C / 76 °FAugust: high 26 °C / 80 °F, low 24 °C / 75 °FSeptember: high 27 °C / 81 °F, low 25 °C / 76 °FOctober: high 28 °C / 83 °F, low 25 °C / 78 °FNovember: high 29 °C / 85 °F, low 26 °C / 79 °FDecember: high 29 °C / 84 °F, low 27 °C / 80 °F

Precipitation by month

Precipitation per month (mminches)
01002003004005000481216JJanuary: 150 mm / 5.9 inFFebruary: 128 mm / 5.1 inMMarch: 154 mm / 6.1 inAApril: 214 mm / 8.4 inMMay: 348 mm / 13.7 inJJune: 444 mm / 17.5 inJJuly: 396 mm / 15.6 inAAugust: 275 mm / 10.8 inSSeptember: 198 mm / 7.8 inOOctober: 108 mm / 4.2 inNNovember: 92 mm / 3.6 inDDecember: 148 mm / 5.8 in44417.5

Ambon climate table

Monthly averages, 2001–2025
MonthHigh °C°FLow °C°FMean °C°FPrecip. mmin
Jan2984267927811505.9
Feb2984267927811285.1
Mar2984267927811546.1
Apr2983268028822148.4
May28832679278134814
Jun27812577267944417
Jul27802476257839616
Aug26802475257727511
Sep2781257626781987.8
Oct2883257827801084.2
Nov298526792882923.6
Dec2984278028821485.8
Year2985247527802,655105

“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.

Humidity, cloud, sun and daylight
MonthHumid.CloudSolarDaylight
Jan85%81%5.212:19
Feb85%82%5.512:14
Mar84%78%5.412:08
Apr85%76%5.112:02
May88%73%4.611:57
Jun90%78%3.911:55
Jul90%81%3.811:56
Aug88%75%4.511:00
Sep87%71%5.112:06
Oct84%65%5.812:12
Nov81%68%5.812:17
Dec83%77%5.312:20

Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.

What the climate of Ambon is like

The warmest month is December, with an average high of 29 °C84 °F and a low of 27 °C80 °F. The coldest is August, when highs average 26 °C80 °F and lows 24 °C75 °F. Temperatures barely change through the year: the warmest and the coolest month differ by only 2.6 °C4.7 °F.

It is very wet, receiving about 2,655 mm105 in of precipitation per year. The wettest three-month stretch is May–July, which brings 45% of the annual total. The wettest month is June (444 mm17 in), the driest is November (92 mm3.6 in).

Relative humidity ranges from 81% in November to 90% in June. The clearest skies (lowest average cloud amount, 65%) are typical of October. Average wind speed near the ground ranges from 5 km/h (3 mph) in November to 10 km/h (6 mph) in July.

Best time to visit Ambon

Based on these averages, the most comfortable months for sightseeing and outdoor activities are October and November. Average highs then reach 28 °C83 °F to 29 °C85 °F. Precipitation is 92 mm3.6 in to 108 mm4.2 in per month.

The most challenging month is June, which is very wet (444 mm17 in) and humid (90% relative humidity).

Comfort score: months are ranked by how close they come to an ideal. That means an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.

What to pack for Ambon

  • Wetter months (May–August) — highs 2680 to 28 °C83 °F, lows 2475 to 26 °C79 °F, about 366 mm14 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and a good rain jacket or umbrella and quick-drying shoes.
  • Drier months (September–April) — highs 2781 to 29 °C85 °F, lows 2576 to 27 °C80 °F, about 149 mm5.9 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.

How Ambon compares

World Climates covers 110 places in Indonesia. By annual mean temperature, Ambon is the 66th warmest of them. By annual precipitation, it is the 23rd wettest. See all of them on the Indonesia climate page.

Some places in other countries have a very similar pattern of temperature and rainfall (with seasons shifted for the other hemisphere). The closest matches are Tacloban (Philippines, Af), Panalanoy (Philippines, Af) and Catbalogan (Philippines, Af).

Nearby places

All places in Indonesia

Frequently asked questions

What is the warmest month in Ambon?

December is the warmest month in Ambon. Its average high is 29 °C (84 °F) and its average low is 27 °C (80 °F).

What is the coldest month in Ambon?

August is the coldest month. Its average high is 26 °C (80 °F) and its average low is 24 °C (75 °F).

When does it rain the most in Ambon?

June is the wettest month with about 444 mm (17.5 in) of precipitation. November is the driest with about 92 mm (3.6 in).

What is the best time to visit Ambon?

Judging by long-term averages, the most comfortable months are October and November.

About this data

All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station. So they can differ from airport records. The gaps are largest on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.

The grid cell’s average elevation is 75 m, while Ambon lies at about 12 m. Temperatures on this page were therefore adjusted by +0.4 °C0.7 °F using the standard lapse rate of 6.5 °C per 1,000 m.

Sources and method