Climate averages 1991–2020

Giá Rai weather
in May.

A hot, very wet month: the 2nd warmest and the 7th driest of the year.

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

Average high 31.1°C Daytime mean, May
Average low 26.0°C Night-time mean, May
Rainfall 223 mm 27 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Giá Rai · average highYear overview

May is a hot month in Giá Rai: daytime highs average 31.1°C and nights cool to about 26.0°C. By daytime temperature it is the 2nd warmest of the 12 months.

Expect about 223 mm of rain on roughly 27 days, which makes May a very wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 32 min on an average May day.

The nearest other city in this atlas is Bạc Liêu (30 km away). In May its highs average 31.2°C, about as warm as Giá Rai, with 205 mm of rain.

Among the 136 cities listed in Vietnam, Giá Rai ranks joint 73rd of 136 for the warmest May highs and 97th of 136 for the driest May (rainfall, lowest first). The mean May high of those 136 cities is 31.2°C; Giá Rai is 0.1°C cooler than that mean.

From May to June, average highs fall by 0.9°C to 30.2°C, and monthly rainfall rises from 223 mm to 260 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 3500

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

Every month, side by side

Giá Rai climate table

1991–2020
Monthly climate averages for Giá Rai, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 28.8°C23.7°C23.7°C254.411.612 h
February 29.7°C24.1°C24.1°C122.011.812 h
March 30.7°C25.1°C25.1°C426.412.112 h
April 31.4°C25.9°C25.9°C8714.612.312 h
May, selected 31.1°C26.0°C26.0°C22326.912.513 h
June 30.2°C25.6°C25.6°C26028.012.713 h
July 29.6°C25.2°C25.2°C26629.512.613 h
August 29.7°C25.1°C25.1°C25029.512.412 h
September 29.5°C24.9°C24.9°C29028.612.212 h
October 29.2°C24.5°C24.5°C32928.711.912 h
November 29.0°C24.5°C24.5°C18120.411.712 h
December 28.6°C23.9°C23.9°C9311.411.612 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 Giá Rai

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