Climate averages 1991–2020

Bitung weather
in December.

A hot, wet month: the joint 6th warmest and the 8th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 29.1°C Daytime mean, December
Average low 25.1°C Night-time mean, December
Rainfall 172 mm 26 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Bitung · average highYear overview

December is a hot month in Bitung: daytime highs average 29.1°C and nights cool to about 25.1°C. By daytime temperature it is the joint 6th warmest of the 12 months.

Expect about 172 mm of rain on roughly 26 days, which makes December a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 02 min on an average December day.

The nearest other city in this atlas is Manado (31 km away). In December its highs average 29.1°C, about as warm as Bitung, with 281 mm of rain.

Among the 200 cities listed in Indonesia, Bitung ranks joint 59th of 200 for the warmest December highs and 3rd of 200 for the driest December (rainfall, lowest first). The mean December high of those 200 cities is 28.4°C; Bitung is 0.7°C warmer than that mean.

From December to January, average highs fall by 0.4°C to 28.7°C, and monthly rainfall rises from 172 mm to 178 mm.

The annual picture

December in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 20253035 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 2500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Bitung climate table

1991–2020
Monthly climate averages for Bitung, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 28.7°C24.9°C24.9°C17824.912.012 h
February 28.8°C25.0°C25.0°C16721.512.112 h
March 29.1°C25.1°C25.1°C15522.812.112 h
April 29.4°C25.1°C25.1°C18823.612.112 h
May 29.3°C25.4°C25.4°C22225.412.212 h
June 28.8°C25.2°C25.2°C22022.712.212 h
July 28.4°C25.1°C25.1°C14618.012.212 h
August 28.8°C25.0°C25.0°C7410.112.212 h
September 29.4°C25.1°C25.1°C6611.212.112 h
October 29.8°C25.1°C25.1°C12617.312.112 h
November 29.5°C25.0°C25.0°C16424.712.112 h
December, selected 29.1°C25.1°C25.1°C17225.812.012 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

December in nearby cities

Distance from Bitung

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Bitung) is explained once on the Bitung year overview and on the Sources, method and limits page.