Metar & Taf

Visual decoder

Weather in Riau

Calculated from weather data of Sultan Syarif Kasim II International Airport / Roesmin Nurjadin AFB (WIBB) between 2020 and 2024.

Maximum temperatures (°C)

Month Average 2024 2023 2022 2021 2020
January 30.6 30.3 29.6 30.6 29.6 31.1
February 31.1 31.6 30.8 30.8 31.3 29.8
March 31.6 32.5 30.5 32.2 31.3 30.1
April 32.3 33.1 32.1 32.1 31.8 31.6
May 32.1 32.0 32.6 32.2 32.0 31.3
June 31.6 32.1 32.7 31.1 32.2 29.8
July 31.8 32.3 31.6 32.1 31.1
August 31.8 31.1 31.1 31.3 32.2
September 31.4 32.2 31.3 31.5 31.3
October 31.8 32.1 31.3 31.8 32.2
November 31.3 31.6 30.8 31.3 31.1
December 30.6 30.3 30.1 30.3 31.1
Average 31.5 31.9 31.4 31.3 31.4 31.1

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month Average 2024 2023 2022 2021 2020
January 23.5 24 24 23 23 25
February 23.4 24 23 22 24 26
March 23.6 24 24 24 23 27
April 23.9 24 24 23 22 25
May 24.3 25 26 24 24 25
June 24.3 24 25 23 24 26
July 23.9 24 23 23 24
August 23.6 24 23 24 24
September 23.6 23 23 24 23
October 24.0 25 23 24 24
November 23.6 24 24 24 24
December 23.4 24 23 23 24
Average 23.8 24.2 24.0 23.3 23.2 24.6

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Cold and hot days

Number of days 2024 2023 2022 2021 2020
30 °C or warmer 145 246 258 272 241
25 °C or warmer 182 339 351 361 329
20 °C or warmer 182 341 352 365 338
0 °C or colder 0 0 0 0 0

Precipitation (%)

Month Average 2024 2023 2022 2021 2020
January 6.0 7 7 6 11 4
February 4.5 5 6 5 2 2
March 4.8 5 9 3 5 0
April 2.9 4 3 2 4 2
May 3.0 4 2 3 3 2
June 2.9 3 1 3 2 0
July 2.6 2 2 4 3
August 2.9 2 6 3 2
September 4.1 4 2 6 5
October 3.8 2 7 4 1
November 4.1 5 4 2 5
December 5.8 11 7 6 3
Average 3.9 4.6 4.7 4.0 4.1 2.7

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (km/h)

Month Average 2024 2023 2022 2021 2020
January 8.4 9 10 8 8 8
February 7.8 8 11 8 7 8
March 7.5 8 9 7 7 8
April 6.7 8 9 6 7 5
May 7.9 10 9 8 6 9
June 8.0 9 10 7 7 9
July 9.6 10 9 10 10
August 9.3 11 8 8 10
September 8.3 11 6 7 9
October 7.4 9 9 7 6
November 7.4 7 9 7 6
December 8.3 8 8 9 8
Average 8.1 8.5 9.4 7.8 7.5 8.0

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month 2024 2023 2022 2021 2020
January N N N N N
February NE N N NE NE
March NE NE NW N N
April E NW NW NW E
May S S SW S S
June S S S S S
July S S S S
August S S S S
September S S SE S
October S NW SW S
November N NW NW N
December N NW N N

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.

Riau weather Q&A

What is the warmest month in Riau?

The warmest month is April with an average temperature of 32 °C over the past years.

What is the coldest month in Riau?

The coldest month is January with an average daytime temperature of 31 °C in the past few years.

Which month is the wettest in Riau?

Chance of precipitation is the highest in January with a probability of around 6.1 %.

Which month is the driest in Riau?

The least rainfall and snow can be expected in July. The probability is about 2.6 %.