Aishalton Airport

SYAH · Guyana

Climate Aishalton Airport 2020-2024

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

Calculated from historical METAR data of Atlas Brasil Cantanhede Airport (SBBV) between 2020 and 2024.

VFR conditions (%)

Month Average 2024 2023 2022 2021 2020
January 96.6 98 92 100 91 99
February 96.4 94 95 98 95 99
March 93.3 83 98 92 92 99
April 86.5 85 85 77 94
May 67.7 68 73 64 69
June 65.9 65 70 76 71
July 69.2 72 78 70 76
August 83.5 96 88 79 75
September 92.6 99 95 95 94
October 94.7 95 94 93 96
November 91.0 98 85 95 80
December 93.8 96 94 92 92
Average 86.4 91.4 87.6 87.0 84.4 86.5

31st best VFR conditions of Brazil

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 99.4 100 100 100 98 100
February 99.5 99 100 100 99 100
March 97.7 90 100 98 98 100
April 96.6 94 95 95 98
May 91.5 94 88 93 91
June 89.5 87 89 95 92
July 91.6 95 93 93 94
August 96.1 99 96 95 95
September 98.1 100 98 99 100
October 98.8 99 98 98 100
November 96.9 100 94 98 96
December 98.9 100 97 99 98
Average 96.2 96.4 97.0 95.2 96.4 96.8

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 32.0 34 32 34 32 34
February 33.4 35 32 34 33 34
March 33.9 35 33 32 33 35
April 33.1 32 33 31 34
May 30.8 31 30 30 32
June 30.7 30 31 31 31
July 30.7 31 31 31 31
August 32.4 34 32 32 32
September 33.8 35 33 34 34
October 34.3 35 33 34 35
November 33.6 35 31 34 33
December 32.8 34 31 33 33
Average 32.8 34.6 32.6 31.9 32.2 33.1

15th highest temperature of Brazil

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 22.6 25 23 24 24 24
February 24.1 26 24 22 24 25
March 24.2 26 24 25 23 26
April 23.7 24 24 24 26
May 20.9 24 24 24 25
June 20.2 23 24 24 24
July 19.7 24 24 24 24
August 22.9 24 24 24 24
September 23.0 25 23 25 25
October 24.5 25 24 25 25
November 24.7 25 24 25 25
December 23.7 25 23 25 25
Average 23.1 25.5 24.1 23.8 24.2 24.8

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month Average 2024 2023 2022 2021 2020
January 0.8 1 1 1 2 1
February 0.5 0 1 1 1 0
March 1.5 0 0 4 3 0
April 4.7 7 7 9 2
May 10.7 8 14 11 9
June 9.4 6 12 8 6
July 8.4 6 11 6 4
August 3.3 1 6 5 3
September 1.9 0 3 1 1
October 1.3 0 4 1 1
November 2.0 0 5 1 2
December 1.6 1 4 3 3
Average 3.5 0.3 2.6 6.0 4.3 2.6

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 10.5 12 9 10 9 11
February 11.3 12 10 10 12 12
March 10.4 10 11 9 9 12
April 8.8 9 8 7 9
May 6.5 7 6 6 7
June 5.3 5 5 6 5
July 4.9 6 5 5 5
August 5.6 6 6 5 5
September 6.1 7 6 7 6
October 7.1 7 7 6 7
November 7.9 9 6 9 6
December 9.6 9 8 9 8
Average 8.2 11.2 7.7 7.1 7.4 7.7

15th highest wind speed of Brazil

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 087° 086° 087° 090° 091°
February 085° 088° 090° 086° 088°
March 082° 090° 091° 095° 090°
April 092° 097° 094° 096°
May 088° 099° 103° 097°
June 135° 119° 109° 105°
July 112° 093° 141° 107°
August 105° 104° 091° 116°
September 110° 104° 099° 100°
October 107° 096° 101° 103°
November 095° 107° 090° 104°
December 095° 086° 087° 097°

Prevailing wind direction

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