Climate averages 1991–2020

Biên Hòa weather
in December.

A hot, moderately wet month: the 10th warmest and the 4th driest of the year.

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

Average high 30.1°C Daytime mean, December
Average low 22.4°C Night-time mean, December
Rainfall 54 mm 9 days with ≥1 mm
Daylight 11 h Sunrise to sunset, per day
Every month in Biên Hòa · average highYear overview

December is a hot month in Biên Hòa: daytime highs average 30.1°C and nights cool to about 22.4°C. By daytime temperature it is the 10th warmest of the 12 months.

Expect about 54 mm of rain on roughly 9 days, which makes December a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 30 min on an average December day.

The nearest other city in this atlas is Thủ Đức (12 km away). In December its highs average 29.8°C, about as warm as Biên Hòa, with 64 mm of rain.

Among the 136 cities listed in Vietnam, Biên Hòa ranks joint 12th of 136 for the warmest December highs and joint 64th of 136 for the driest December (rainfall, lowest first). The mean December high of those 136 cities is 25.0°C; Biên Hòa is 5.0°C warmer than that mean.

From December to January, average highs rise by 1.0°C to 31.1°C, and monthly rainfall falls from 54 mm to 21 mm.

The annual picture

December 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 3500

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

Every month, side by side

Biên Hòa climate table

1991–2020
Monthly climate averages for Biên Hòa, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 31.1°C22.0°C22.0°C213.911.612 h
February 32.7°C22.7°C22.7°C8.41.611.812 h
March 33.9°C24.2°C24.2°C254.912.112 h
April 34.0°C25.2°C25.2°C7512.312.412 h
May 32.6°C25.4°C25.4°C20523.912.613 h
June 30.9°C24.8°C24.8°C25626.912.813 h
July 30.4°C24.4°C24.4°C27628.712.713 h
August 30.5°C24.3°C24.3°C28328.812.512 h
September 30.2°C24.1°C24.1°C30128.312.212 h
October 29.9°C23.7°C23.7°C25026.411.912 h
November 30.0°C23.2°C23.2°C12215.411.612 h
December, selected 30.1°C22.4°C22.4°C548.611.511 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

December in nearby cities

Distance from Biên Hòa

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

Thuận An and Thủ Dầu Một lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.