Climate averages 1991–2020

Pekalongan weather
in May.

A hot, very wet month: the 4th warmest and the 5th driest of the year.

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

Average high 29.2°C Daytime mean, May
Average low 24.0°C Night-time mean, May
Rainfall 202 mm 23 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Pekalongan · average highYear overview

May is a hot month in Pekalongan: daytime highs average 29.2°C and nights cool to about 24.0°C. By daytime temperature it is the 4th warmest of the 12 months.

Expect about 202 mm of rain on roughly 23 days, which makes May a very wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 48 min on an average May day.

The nearest other city in this atlas is Kedungwuni (10 km away). In May its highs average 29.6°C, about as warm as Pekalongan, with 202 mm of rain.

Among the 200 cities listed in Indonesia, Pekalongan ranks joint 124th of 200 for the warmest May highs and joint 145th of 200 for the driest May (rainfall, lowest first). The mean May high of those 200 cities is 29.2°C; Pekalongan is level with that mean.

From May to June, average highs fall by 0.2°C to 29.0°C, and monthly rainfall falls from 202 mm to 148 mm.

The annual picture

May 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 5500

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

Every month, side by side

Pekalongan climate table

1991–2020
Monthly climate averages for Pekalongan, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 28.0°C23.7°C23.7°C41030.412.512 h
February 28.0°C23.7°C23.7°C38427.812.312 h
March 28.5°C23.9°C23.9°C41430.212.112 h
April 28.9°C24.1°C24.1°C37728.412.012 h
May, selected 29.2°C24.0°C24.0°C20223.311.812 h
June 29.0°C23.5°C23.5°C14817.211.712 h
July 29.1°C23.0°C23.0°C10314.411.812 h
August 29.8°C22.9°C22.9°C7611.811.912 h
September 30.6°C23.6°C23.6°C12314.812.112 h
October 30.4°C24.2°C24.2°C29322.712.312 h
November 29.1°C24.2°C24.2°C46528.312.412 h
December 28.5°C24.0°C24.0°C51729.612.513 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

May in nearby cities

Distance from Pekalongan

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

Kedungwuni lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.