Climate Surat Thani Airport 2020-2024

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

Calculated from historical METAR data of Surat Thani Airport (VTSB) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	76.4	94	82	91	73	84
February	79.5	91	89	86	83	84
March	83.9	97	82	89	90	95
April	84.6		86	86	92	98
May	88.3		94	89	95	96
June	90.2		96	95	98	92
July	87.8		94	88	94	87
August	91.4		98	97	96	95
September	86.9		86	96	94	89
October	84.0		85	84	92	88
November	77.1		82	83	83	90
December	75.4		92	80	83	77
Average	84.7	94.1	88.7	88.9	89.5	89.5

11th best VFR conditions of Thailand

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	96.9	100	98	100	99	98
February	97.9	100	99	99	100	99
March	97.6	100	97	97	99	100
April	97.5		97	98	98	100
May	97.8		100	98	98	99
June	98.4		100	98	99	98
July	97.7		99	95	99	94
August	98.7		100	98	99	98
September	97.5		97	99	99	95
October	95.2		92	96	97	98
November	96.3		96	96	97	100
December	97.2		99	99	98	95
Average	97.6	99.9	97.8	97.7	98.3	97.8

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	30.8	32	30	32	30	32
February	32.4	34	32	32	33	33
March	34.1	35	33	34	34	35
April	34.6		36	34	34	35
May	34.1		35	33	34	35
June	33.2		33	34	34	33
July	32.8		32	33	33	33
August	32.7		33	33	33	33
September	32.2		31	33	32	32
October	31.8		32	31	32	31
November	30.5		30	31	30	31
December	29.9		31	29	30	30
Average	32.6	33.7	32.2	32.4	32.2	32.8

11th highest temperature of Thailand

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	22.3	24	22	22	22	22
February	21.9	23	22	23	21	22
March	22.9	24	23	24	23	23
April	23.9		25	24	24	24
May	24.6		25	24	24	25
June	24.0		25	24	24	24
July	24.1		24	24	24	24
August	23.9		24	24	24	24
September	23.5		24	24	24	24
October	23.8		24	24	24	24
November	23.4		24	24	23	24
December	23.0		24	23	23	23
Average	23.4	23.5	23.8	23.5	23.2	23.4

22nd lowest temperature of Thailand

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	5.6	1	9	2	5	0
February	2.2	2	2	10	1	1
March	0.8	0	2	2	1	0
April	4.0		1	9	5	5
May	6.7		5	13	9	3
June	9.0		12	5	6	9
July	12.6		19	20	13	8
August	10.2		8	9	11	11
September	13.7		23	12	11	15
October	14.3		12	21	18	24
November	16.8		29	15	28	10
December	10.8		7	28	9	13
Average	7.9	1.0	10.6	11.5	9.6	8.1

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	6.3	5	4	8	8	7
February	6.6	6	4	6	7	9
March	6.6	6	6	5	8	8
April	5.5		5	4	5	8
May	5.2		5	5	5	6
June	5.8		6	5	6	5
July	6.2		6	5	7	5
August	6.7		7	6	6	6
September	5.5		6	5	6	5
October	4.2		4	2	5	5
November	4.8		4	1	4	7
December	6.8		6	7	8	7
Average	5.9	5.8	5.1	4.8	6.4	6.5

11th highest wind speed of Thailand

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	042°	036°	041°	036°	041°
February	041°	039°	043°	043°	040°
March	038°	039°	046°	038°	038°
April		048°	042°	249°	042°
May		221°	235°	242°	068°
June		232°	227°	222°	215°
July		229°	221°	226°	215°
August		233°	222°	222°	223°
September		221°	230°	232°	218°
October		339°	038°	234°	223°
November		030°	042°	029°	040°
December		033°	040°	038°	035°

Prevailing wind direction

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