Dumai Weather in January

What's the weather like in Dumai (Riau) in January 2024?

The climate in Dumai during January can be summarized as hot, humid and wet.

January is in the winter in Dumai and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a steamy 32°C (89°F), whilst at night 22°C (71°F) is normal.

Dumai weather averages (imperial / metric)
Daytime temperature 31.9°C 89.4°F
Nightly temperature 21.9°C 71.4°F
Average temperature 26.9°C 80.4°F
Daily sunshine 6.3 hrs
Avg rainfall 156 mm 6.1 ins
Rainy days 14 days
Sea temperature 28.4°C 83.2°F
Humidity 82%
Windspeed 9kph 6 mph

On average January is the 3rd driest month of the year in Dumai with around 156mm 6.1 inches of rain making it a wet time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.3 hours of sunshine per day.

January temperatures in Dumai

Dumai average temperature in January

January rainfall

Dumai average rain in January

January hourly sunshine

Dumai average rain in January

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Dumai in January 2024.

Other monthly averages

Best places to visit in January

UV index Best time to go?

Dumai weather stats

Dumai weather statistics
Hottest month: March 32.6°C 90.7°F
Driest month: February 145mm 5.7ins
Sunniest month: May 7.4hrs
Coldest month: December 31.1°C 88°F
Wettest month: November 238mm 9.4ins
Map showing location of Dumai (1.68333, 101.45) Dumai map pin © Google

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