Climate averages 1991–2020

Loa Janan weather
in April.

A hot, very wet month: the 3rd warmest and the wettest of the year.

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

Average high 30.3°C Daytime mean, April
Average low 23.7°C Night-time mean, April
Rainfall 307 mm 28 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Loa Janan · average highYear overview

April is a hot month in Loa Janan: daytime highs average 30.3°C and nights cool to about 23.7°C. By daytime temperature it is the 3rd warmest of the 12 months.

Expect about 307 mm of rain on roughly 28 days, which makes April a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 06 min on an average April day.

The nearest other city in this atlas is Samarinda (12 km away). In April its highs average 30.1°C, about as warm as Loa Janan, with 310 mm of rain.

Among the 200 cities listed in Indonesia, Loa Janan ranks joint 6th of 200 for the warmest April highs and 161st of 200 for the driest April (rainfall, lowest first). The mean April high of those 200 cities is 29.0°C; Loa Janan is 1.3°C warmer than that mean.

From April to May, average highs fall by 0.2°C to 30.1°C, and monthly rainfall falls from 307 mm to 256 mm.

The annual picture

April 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 3500

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

Every month, side by side

Loa Janan climate table

1991–2020
Monthly climate averages for Loa Janan, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 29.8°C23.3°C23.3°C27726.412.112 h
February 30.0°C23.4°C23.4°C24423.712.112 h
March 30.2°C23.5°C23.5°C29926.912.112 h
April, selected 30.3°C23.7°C23.7°C30727.512.112 h
May 30.1°C23.9°C23.9°C25628.712.112 h
June 29.7°C23.6°C23.6°C21425.712.112 h
July 29.4°C23.4°C23.4°C17823.712.112 h
August 30.0°C23.5°C23.5°C15921.212.112 h
September 30.6°C23.6°C23.6°C16720.712.112 h
October 30.6°C23.6°C23.6°C23326.012.112 h
November 30.1°C23.5°C23.5°C29428.512.112 h
December 29.8°C23.5°C23.5°C29828.912.212 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

April in nearby cities

Distance from Loa Janan

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