Climate averages 1991–2020

Hải Dương weather
in May.

A hot, very wet month: the 4th warmest and the 9th driest of the year.

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

Average high 30.9°C Daytime mean, May
Average low 24.5°C Night-time mean, May
Rainfall 244 mm 19 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Hải Dương · average highYear overview

May is a hot month in Hải Dương: daytime highs average 30.9°C and nights cool to about 24.5°C. By daytime temperature it is the 4th warmest of the 12 months.

Expect about 244 mm of rain on roughly 19 days, which makes May a very wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 07 min on an average May day.

The nearest other city in this atlas is Chí Linh (14 km away). In May its highs average 30.9°C, about as warm as Hải Dương, with 244 mm of rain.

Among the 136 cities listed in Vietnam, Hải Dương ranks joint 90th of 136 for the warmest May highs and joint 117th of 136 for the driest May (rainfall, lowest first). The mean May high of those 136 cities is 31.2°C; Hải Dương is 0.3°C cooler than that mean.

From May to June, average highs rise by 1.7°C to 32.5°C, and monthly rainfall rises from 244 mm to 246 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. 101520253035 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

Hải Dương climate table

1991–2020
Monthly climate averages for Hải Dương, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 19.8°C13.6°C13.6°C367.011.011 h
February 21.7°C15.2°C15.2°C246.611.411 h
March 24.7°C18.2°C18.2°C509.912.012 h
April 28.4°C21.7°C21.7°C8211.312.613 h
May, selected 30.9°C24.5°C24.5°C24418.713.113 h
June 32.5°C26.4°C26.4°C24620.313.413 h
July 32.3°C26.5°C26.5°C27622.513.313 h
August 31.3°C25.6°C25.6°C35325.212.813 h
September 30.2°C24.2°C24.2°C24319.912.312 h
October 28.3°C21.6°C21.6°C11912.611.712 h
November 25.2°C18.1°C18.1°C607.411.211 h
December 21.2°C14.3°C14.3°C336.710.911 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 Hải Dương

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

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