As-Sulayyil Airport

OESL · Riyadh Region, Saudi Arabia

Climate As-Sulayyil Airport 2020-2024

Climate and trends: average temperature, flight conditions, precipitation, wind speed and direction.

Calculated from historical METAR data of Wadi Al Dawasir Domestic Airport (OEWD) between 2020 and 2024.

VFR conditions (%)

Month Average 2024 2023 2022 2021 2020
January 89.2 98 93 80 92 98
February 87.1 96 88 86 98 80
March 78.7 91 88 77 79 75
April 81.9 86 83 89 93
May 83.4 87 66 97 84
June 84.2 95 87 89 89
July 85.9 100 75 84 89
August 88.5 99 67 90 90
September 97.4 98 95 95 98
October 99.1 100 100 100 100
November 98.5 100 98 100 99
December 96.7 99 95 94 99
Average 89.3 94.9 94.2 83.1 91.8 91.0

24th best VFR conditions of Saudi Arabia

VFR conditions during daylight period

Percentage of observations where the VFR minimums for ceiling and visibility are met: visibility of 8 km or more and a ceiling of 3,000 ft or more. Only observations between sunrise and sunset are taken into account.

Marginal VFR conditions (%)

Month Average 2024 2023 2022 2021 2020
January 97.1 99 100 90 97 100
February 97.0 100 98 97 100 97
March 92.3 96 98 87 89 96
April 93.7 93 94 96 100
May 94.0 96 81 99 95
June 94.5 99 95 98 99
July 95.7 100 93 94 97
August 95.3 100 83 96 96
September 99.8 100 99 100 100
October 99.7 100 100 100 100
November 99.9 100 100 100 100
December 98.9 100 98 97 100
Average 96.5 98.0 98.5 92.6 96.9 98.1

Marginal VFR conditions or better during daylight period

Percentage of observations where the MVFR minimums for ceiling and visibility are met: visibility of 5 km or more and a ceiling of 1,000 ft or more. Only observations between sunrise and sunset are taken into account.

Maximum temperatures (°C)

Month Average 2024 2023 2022 2021 2020
January 25.3 27 24 25 25 24
February 27.8 28 30 28 27 28
March 32.4 32 32 33 34 32
April 35.9 33 38 37 37
May 40.1 40 41 41 40
June 43.4 43 44 44 43
July 44.1 46 44 43 44
August 43.6 45 43 44 43
September 41.1 42 41 40 41
October 35.7 37 35 37 34
November 30.7 32 31 31 31
December 26.0 27 26 26 26
Average 34.7 28.8 35.6 35.9 35.7 35.2

2nd highest temperature of Saudi Arabia

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 11.8 14 13 12 11 11
February 14.0 15 14 14 13 15
March 18.6 20 19 18 18 18
April 22.2 21 22 22 24
May 26.1 27 25 26 27
June 28.0 28 28 28 28
July 29.4 29 31 28 30
August 29.2 30 29 29 30
September 25.7 27 26 25 25
October 20.9 23 20 22 18
November 17.6 20 18 17 17
December 12.5 13 14 12 13
Average 20.7 16.3 21.9 21.5 20.9 21.2

21st lowest temperature of Saudi Arabia

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month Average 2024 2023 2022 2021 2020
January 0.2 0 2 0 0 0
February 0.0 0 0 0 0 0
March 0.1 0 1 0 0 0
April 0.1 0 0 0 0
May 0.0 0 0 0 0
June 0.0 0 0 0 0
July 0.1 0 0 1 0
August 0.0 0 0 0 0
September 0.0 0 0 0 0
October 0.0 0 0 0 0
November 0.0 0 0 0 0
December 0.0 0 0 0 0
Average 0.0 0.0 0.2 0.0 0.1 0.0

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 (knots)

Month Average 2024 2023 2022 2021 2020
January 9.3 9 11 9 10 9
February 10.0 11 9 10 11 11
March 9.7 11 10 9 9 9
April 8.4 9 8 8 8
May 7.8 9 7 6 8
June 7.1 6 7 8 7
July 7.7 5 8 7 9
August 7.3 6 7 8 7
September 6.3 7 6 6 6
October 6.7 8 6 7 5
November 8.9 9 9 8 9
December 8.7 9 9 8 10
Average 8.3 10.2 8.0 7.9 7.9 8.2

2nd highest wind speed of Saudi Arabia

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 121° 107° 108° 064° 076°
February 112° 103° 099° 065° 071°
March 115° 109° 114° 111° 078°
April 108° 103° 108° 083°
May 104° 108° 189° 053°
June 006° 090° 067° 042°
July 308° 332° 333° 305°
August 034° 359° 030° 289°
September 092° 084° 035° 038°
October 115° 110° 099° 031°
November 124° 116° 119° 074°
December 124° 115° 112° 067°

Prevailing wind direction

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