Climate averages 1991–2020

Bishan weather
in May.

A warm, wet month: the 5th warmest and the 9th driest of the year.

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

Average high 26.1°C Daytime mean, May
Average low 18.5°C Night-time mean, May
Rainfall 142 mm 16 days with ≥1 mm
Daylight 14 h Sunrise to sunset, per day
Every month in Bishan · average highYear overview

May is a warm month in Bishan: daytime highs average 26.1°C and nights cool to about 18.5°C. By daytime temperature it is the 5th warmest of the 12 months.

Expect about 142 mm of rain on roughly 16 days, which makes May a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 37 min on an average May day.

The nearest other city in this atlas is Qinggang (14 km away). In May its highs average 26.2°C, about as warm as Bishan, with 142 mm of rain.

Among the 884 cities listed in China, Bishan ranks joint 423rd of 884 for the warmest May highs and joint 574th of 884 for the driest May (rainfall, lowest first). The mean May high of those 884 cities is 25.2°C; Bishan is 0.9°C warmer than that mean.

From May to June, average highs rise by 2.6°C to 28.7°C, and monthly rainfall rises from 142 mm to 160 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. 05101520253035 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 2000

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

Every month, side by side

Bishan climate table

1991–2020
Monthly climate averages for Bishan, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 11.0°C5.4°C5.4°C267.210.510 h
February 13.6°C7.3°C7.3°C297.911.111 h
March 17.9°C10.6°C10.6°C6412.612.012 h
April 22.8°C14.9°C14.9°C10414.312.913 h
May, selected 26.1°C18.5°C18.5°C14215.813.614 h
June 28.7°C21.9°C21.9°C16015.614.014 h
July 31.9°C24.8°C24.8°C16515.213.814 h
August 32.1°C24.8°C24.8°C15314.113.213 h
September 27.5°C21.0°C21.0°C11112.612.412 h
October 21.6°C16.3°C16.3°C9215.911.511 h
November 17.2°C11.7°C11.7°C6211.010.711 h
December 12.2°C7.0°C7.0°C338.910.310 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 Bishan

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

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