Climate averages 1991–2020

Cao Lãnh weather
in May.

A hot, wet month: the 3rd warmest and the 7th driest of the year.

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

Average high 32.2°C Daytime mean, May
Average low 25.5°C Night-time mean, May
Rainfall 179 mm 24 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Cao Lãnh · average highYear overview

May is a hot month in Cao Lãnh: daytime highs average 32.2°C and nights cool to about 25.5°C. By daytime temperature it is the 3rd warmest of the 12 months.

Expect about 179 mm of rain on roughly 24 days, which makes May a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 36 min on an average May day.

The nearest other city in this atlas is Quận Đức Thịnh (20 km away). In May its highs average 32.2°C, about as warm as Cao Lãnh, with 196 mm of rain.

Among the 136 cities listed in Vietnam, Cao Lãnh ranks joint 26th of 136 for the warmest May highs and 39th of 136 for the driest May (rainfall, lowest first). The mean May high of those 136 cities is 31.2°C; Cao Lãnh is 1.0°C warmer than that mean.

From May to June, average highs fall by 1.6°C to 30.6°C, and monthly rainfall rises from 179 mm to 216 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. 2025303540 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

Cao Lãnh climate table

1991–2020
Monthly climate averages for Cao Lãnh, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 30.4°C22.2°C22.2°C264.111.612 h
February 31.7°C22.7°C22.7°C131.911.812 h
March 33.5°C24.2°C24.2°C315.612.112 h
April 33.8°C25.2°C25.2°C7912.612.412 h
May, selected 32.2°C25.5°C25.5°C17924.312.613 h
June 30.6°C25.1°C25.1°C21626.612.713 h
July 30.3°C24.8°C24.8°C22727.812.713 h
August 30.5°C24.8°C24.8°C24028.112.512 h
September 30.4°C24.5°C24.5°C27728.212.212 h
October 30.4°C23.9°C23.9°C28826.911.912 h
November 30.5°C23.5°C23.5°C14016.311.712 h
December 30.1°C22.7°C22.7°C638.911.512 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

May in nearby cities

Distance from Cao Lãnh

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