Climate averages 1991–2020

South Tangerang weather
in January.

A hot, very wet month: the coolest and the wettest of the year.

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

Average high 28.8°C Daytime mean, January
Average low 22.9°C Night-time mean, January
Rainfall 298 mm 28 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in South Tangerang · average highYear overview

January is a hot month in South Tangerang: daytime highs average 28.8°C and nights cool to about 22.9°C. By daytime temperature it is the coolest month of the year.

Expect about 298 mm of rain on roughly 28 days, which makes January a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 26 min on an average January day.

The nearest other city in this atlas is Ciputat (6 km away). In January its highs average 28.6°C, about as warm as South Tangerang, with 298 mm of rain.

Among the 200 cities listed in Indonesia, South Tangerang ranks joint 67th of 200 for the warmest January highs and joint 84th of 200 for the driest January (rainfall, lowest first). The mean January high of those 200 cities is 28.2°C; South Tangerang is 0.6°C warmer than that mean.

From January to February, average highs rise by 0.1°C to 28.9°C, and monthly rainfall falls from 298 mm to 280 mm.

The annual picture

January 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. 1520253035 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 3000

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

Every month, side by side

South Tangerang climate table

1991–2020
Monthly climate averages for South Tangerang, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January, selected 28.8°C22.9°C22.9°C29828.312.412 h
February 28.9°C22.8°C22.8°C28027.112.312 h
March 29.5°C22.8°C22.8°C24328.412.112 h
April 29.9°C22.8°C22.8°C20125.912.012 h
May 30.0°C22.6°C22.6°C11820.911.812 h
June 30.2°C22.2°C22.2°C8514.711.812 h
July 30.6°C22.0°C22.0°C6712.411.812 h
August 31.4°C22.2°C22.2°C438.811.912 h
September 32.2°C22.6°C22.6°C5711.112.112 h
October 31.8°C23.1°C23.1°C12918.512.212 h
November 30.4°C23.1°C23.1°C21625.712.412 h
December 29.3°C23.0°C23.0°C26426.412.512 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

January in nearby cities

Distance from South Tangerang

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

Jakarta, Tangerang and Ciputat lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.