Climate averages 1991–2020

Hồng Ngự weather
in August.

A hot, very wet month: the joint 5th warmest and the 10th driest of the year.

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

Average high 31.0°C Daytime mean, August
Average low 24.8°C Night-time mean, August
Rainfall 215 mm 28 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Hồng Ngự · average highYear overview

August is a hot month in Hồng Ngự: daytime highs average 31.0°C and nights cool to about 24.8°C. By daytime temperature it is the joint 5th warmest of the 12 months.

Expect about 215 mm of rain on roughly 28 days, which makes August a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 29 min on an average August day.

The nearest other city in this atlas is Tân Châu (12 km away). In August its highs average 31.0°C, about as warm as Hồng Ngự, with 215 mm of rain.

Among the 136 cities listed in Vietnam, Hồng Ngự ranks joint 60th of 136 for the warmest August highs and joint 32nd of 136 for the driest August (rainfall, lowest first). The mean August high of those 136 cities is 30.5°C; Hồng Ngự is 0.5°C warmer than that mean.

From August to September, average highs fall by 0.2°C to 30.8°C, and monthly rainfall rises from 215 mm to 254 mm.

The annual picture

August 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

Hồng Ngự climate table

1991–2020
Monthly climate averages for Hồng Ngự, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 30.8°C22.1°C22.1°C234.011.612 h
February 32.2°C22.7°C22.7°C131.611.812 h
March 34.0°C24.4°C24.4°C346.612.112 h
April 34.1°C25.4°C25.4°C8713.512.412 h
May 32.4°C25.5°C25.5°C17023.512.613 h
June 31.0°C25.1°C25.1°C19826.412.713 h
July 30.7°C24.8°C24.8°C20827.112.713 h
August, selected 31.0°C24.8°C24.8°C21527.712.512 h
September 30.8°C24.5°C24.5°C25427.912.212 h
October 30.6°C24.0°C24.0°C27626.311.912 h
November 30.6°C23.5°C23.5°C11314.811.612 h
December 30.4°C22.6°C22.6°C487.411.512 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

August in nearby cities

Distance from Hồng Ngự

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

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