Climate Mae Hong Son Airport 2020-2024

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

Calculated from historical METAR data of Chiang Mai International Airport (VTCC) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	89.3	89	95	99	75	73
February	80.7	82	78	98	72	68
March	55.7	49	21	95	46	49
April	69.7		30	87	82	70
May	97.9		97	95	100	100
June	98.7		99	100	98	99
July	97.4		95	100	98	99
August	95.9		93	98	100	94
September	97.2		91	97	99	98
October	97.1		91	98	99	99
November	98.0		99	97	99	100
December	92.1		94	94	91	99
Average	87.3	73.2	82.0	96.6	88.4	87.4

2nd 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	98.9	98	100	100	98	100
February	99.5	100	100	100	100	98
March	84.4	81	64	100	90	79
April	89.2		58	98	93	92
May	99.4		100	97	100	100
June	99.4		100	100	99	100
July	99.6		100	100	100	100
August	99.0		99	99	100	98
September	99.4		98	99	99	100
October	98.8		98	99	99	100
November	99.4		100	100	100	100
December	98.4		100	99	100	100
Average	96.6	92.8	93.0	99.1	98.2	97.0

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	29.6	30	29	30	29	32
February	32.9	34	32	31	32	34
March	35.7	36	34	35	36	37
April	35.9		38	34	33	37
May	34.8		36	32	36	37
June	33.2		34	33	33	34
July	32.4		34	32	32	33
August	31.5		32	32	32	31
September	31.9		32	31	32	32
October	31.4		31	31	31	30
November	31.2		31	32	31	31
December	29.2		30	29	28	29
Average	32.6	33.3	32.7	31.8	31.9	33.0

18th 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	16.6	18	15	16	16	15
February	16.9	17	17	17	18	17
March	20.9	21	21	23	21	21
April	23.5		24	24	23	24
May	24.7		25	24	25	25
June	24.9		25	25	25	25
July	24.6		25	25	25	25
August	24.3		25	24	25	24
September	24.0		24	24	24	25
October	23.1		24	22	23	23
November	21.0		22	21	22	20
December	17.5		20	20	17	16
Average	21.5	18.8	22.2	22.1	21.8	21.7

11th 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	1.3	1	0	1	0	0
February	0.2	0	0	2	0	0
March	0.2	0	1	1	0	0
April	1.3		0	1	3	1
May	4.6		4	11	2	2
June	7.2		7	5	7	8
July	10.2		12	11	10	5
August	13.1		17	14	7	17
September	9.8		18	17	8	9
October	6.4		11	6	4	9
November	0.6		1	0	0	0
December	0.5		0	1	0	0
Average	4.2	0.3	6.1	6.1	3.5	4.2

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	3.3	4	3	4	4	3
February	3.6	4	4	4	3	4
March	4.1	4	4	4	4	4
April	4.4		4	5	4	5
May	4.8		5	5	5	5
June	5.0		5	5	5	5
July	4.5		5	4	5	4
August	4.2		4	4	5	4
September	4.2		4	4	4	4
October	4.2		4	4	4	6
November	3.7		4	3	4	4
December	3.3		3	4	3	3
Average	4.1	3.8	4.1	4.2	4.1	4.2

18th 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	187°	165°	183°	176°	160°
February	164°	175°	183°	142°	176°
March	168°	165°	178°	150°	168°
April		175°	230°	163°	168°
May		198°	219°	175°	179°
June		223°	205°	206°	206°
July		204°	190°	203°	187°
August		196°	203°	205°	193°
September		347°	335°	145°	197°
October		199°	023°	013°	001°
November		334°	343°	188°	360°
December		188°	238°	281°	154°

Prevailing wind direction

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