Climate Seletar Airport 2020-2024

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

Calculated from historical METAR data of Seletar Airport (WSSL) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	90.3	84	85	94	88	97
February	94.0	93	90	92	97	97
March	90.4	93	84	91	92	95
April	88.9		85	90	90	96
May	91.5		95	92	92	97
June	92.4		93	94	94	94
July	94.3		92	93	94	95
August	92.5		91	92	92	96
September	86.7		87	91	96	95
October	90.3		88	92	95	97
November	89.3		90	90	89	93
December	90.9		87	88	96	96
Average	90.9	89.8	88.8	91.6	92.7	95.4

3rd best VFR conditions of Singapore

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	94	98	98	94	99
February	98.3	98	95	97	100	100
March	96.6	96	93	95	98	98
April	96.8		95	96	97	98
May	98.2		98	98	98	99
June	97.7		96	96	99	98
July	98.3		98	96	98	99
August	98.0		98	96	98	99
September	95.7		96	97	98	99
October	97.0		95	95	98	99
November	96.7		96	95	97	98
December	96.2		92	94	99	97
Average	97.1	95.6	95.8	96.0	97.7	98.5

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	30.6	30	30	32	29	31
February	31.4	32	31	31	31	31
March	32.2	33	30	32	32	33
April	32.4		32	32	32	33
May	32.4		33	32	32	33
June	31.7		32	31	32	31
July	31.8		31	32	32	31
August	31.7		32	31	31	31
September	31.6		32	31	31	31
October	31.9		33	31	32	31
November	31.2		32	31	31	31
December	30.7		31	30	31	31
Average	31.6	31.5	31.4	31.3	31.3	31.5

2nd highest temperature of Singapore

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	24.8	25	25	25	24	25
February	24.9	26	25	25	24	25
March	25.3	26	25	25	25	26
April	25.5		26	25	25	26
May	26.2		27	26	26	26
June	25.8		26	25	25	26
July	26.0		26	26	26	26
August	26.0		26	25	25	26
September	25.4		26	25	25	24
October	25.3		26	25	26	25
November	24.9		25	25	25	25
December	24.9		25	24	25	25
Average	25.4	25.6	25.5	25.0	25.1	25.3

1st lowest temperature of Singapore

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	14.8	26	23	7	22	5
February	6.7	10	11	14	2	5
March	7.9	8	19	6	7	3
April	6.1		7	6	5	4
May	5.7		3	5	5	5
June	10.2		9	11	7	17
July	7.8		11	9	8	10
August	8.6		12	13	13	8
September	9.0		10	12	9	15
October	7.8		4	13	7	7
November	11.4		7	12	14	14
December	13.1		17	21	10	11
Average	9.6	14.9	11.2	10.2	9.2	8.6

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	7.4	7	6	8	8	9
February	9.0	9	8	7	10	10
March	7.0	8	8	5	7	7
April	4.9		4	4	4	6
May	5.0		5	5	5	5
June	5.2		5	4	5	5
July	6.4		6	6	6	5
August	6.5		6	5	5	6
September	5.9		7	5	6	6
October	4.9		5	4	5	6
November	4.4		4	4	4	4
December	5.9		5	4	7	6
Average	6.3	8.1	5.8	5.2	6.0	6.2

2nd highest wind speed of Singapore

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	027°	017°	022°	022°	028°
February	033°	021°	036°	029°	032°
March	038°	032°	035°	034°	042°
April		057°	050°	065°	057°
May		188°	190°	126°	157°
June		178°	199°	187°	166°
July		175°	177°	179°	157°
August		165°	182°	179°	169°
September		160°	199°	172°	174°
October		153°	258°	198°	210°
November		020°	278°	284°	044°
December		019°	020°	010°	010°

Prevailing wind direction

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