Climate averages 1991–2020

Nusantara weather
in July.

A hot, very wet month: the coolest and the 3rd driest of the year.

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

Average high 28.7°C Daytime mean, July
Average low 23.2°C Night-time mean, July
Rainfall 181 mm 24 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Nusantara · average highYear overview

July is a hot month in Nusantara: daytime highs average 28.7°C and nights cool to about 23.2°C. By daytime temperature it is the coolest month of the year.

Expect about 181 mm of rain on roughly 24 days, which makes July a very wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 04 min on an average July day.

The nearest other city in this atlas is Balikpapan (35 km away). In July its highs average 27.5°C, 1.2°C cooler than Nusantara, with 142 mm of rain.

Among the 200 cities listed in Indonesia, Nusantara ranks joint 123rd of 200 for the warmest July highs and joint 175th of 200 for the driest July (rainfall, lowest first). The mean July high of those 200 cities is 29.0°C; Nusantara is 0.3°C cooler than that mean.

From July to August, average highs rise by 0.5°C to 29.2°C, and monthly rainfall falls from 181 mm to 142 mm.

The annual picture

July 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 4000

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

Every month, side by side

Nusantara climate table

1991–2020
Monthly climate averages for Nusantara, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 29.5°C23.3°C23.3°C32327.912.212 h
February 29.8°C23.4°C23.4°C28824.512.112 h
March 29.9°C23.5°C23.5°C34928.512.112 h
April 29.8°C23.7°C23.7°C35627.912.112 h
May 29.5°C23.8°C23.8°C27028.212.112 h
June 29.0°C23.5°C23.5°C22125.412.112 h
July, selected 28.7°C23.2°C23.2°C18123.512.112 h
August 29.2°C23.2°C23.2°C14220.312.112 h
September 29.9°C23.4°C23.4°C15518.912.112 h
October 30.1°C23.5°C23.5°C22224.012.112 h
November 29.7°C23.5°C23.5°C30828.412.212 h
December 29.5°C23.5°C23.5°C34929.412.212 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

July in nearby cities

Distance from Nusantara

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 Nusantara) is explained once on the Nusantara year overview and on the Sources, method and limits page.