Climate Chaiyaphum 2020-2024

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

Calculated from historical METAR data of Nakhon Ratchasima Airport (VTUQ) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	76.8	97	78	83	79	77
February	68.6	83	71	77	82	83
March	55.9	77	63	71	64	81
April	71.6		81	91	85	87
May	74.5		86	84	94	81
June	75.6		69	97	91	77
July	75.2		66	93	82	86
August	76.3		71	89	88	87
September	64.5		63	64	63	76
October	65.9		61	79	82	62
November	79.2		75	89	98	88
December	87.4		89	93	94	91
Average	73.1	85.3	72.7	83.8	83.3	81.2

19th 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	89.5	99	94	98	99	97
February	93.7	97	99	98	100	99
March	89.0	94	99	100	99	99
April	88.4		100	98	99	100
May	89.2		99	100	99	100
June	89.3		100	100	100	100
July	91.2		97	100	100	99
August	90.4		98	100	100	100
September	90.4		98	93	99	99
October	88.8		94	99	97	97
November	93.3		99	99	100	100
December	97.2		98	100	100	100
Average	90.8	96.5	97.9	98.5	99.2	99.1

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	31.5	31	28	32	30	35
February	33.8	35	32	31	35	35
March	35.9	35	34	35	37	38
April	35.6		37	33	34	38
May	34.2		36	32	35	35
June	34.0		35	34	34	34
July	33.0		34	33	33	33
August	32.9		35	32	34	32
September	31.9		32	31	31	32
October	31.0		31	29	31	28
November	31.2		31	31	30	31
December	30.4		30	28	28	30
Average	33.0	33.7	32.9	31.7	32.5	33.1

19th 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	17.2	18	15	17	14	19
February	19.4	21	19	20	17	20
March	22.5	24	20	23	23	25
April	23.8		25	23	24	23
May	24.2		25	24	24	26
June	24.3		26	24	25	25
July	24.4		25	24	24	24
August	24.2		25	24	24	24
September	23.6		24	24	24	24
October	22.0		23	21	23	22
November	20.1		20	21	21	19
December	17.2		19	17	17	17
Average	21.7	20.7	22.1	21.8	21.6	22.0

7th 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	0.5	0	4	0	0	0
February	0.7	0	2	1	1	0
March	0.7	2	0	1	1	1
April	1.5		1	2	1	0
May	2.7		3	6	1	3
June	2.0		3	3	3	2
July	4.0		1	6	3	1
August	4.3		2	7	5	4
September	7.4		8	13	8	8
October	5.4		4	7	8	15
November	1.1		1	1	0	0
December	0.5		0	0	0	0
Average	2.3	0.6	2.4	3.8	2.6	2.8

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	5.1	4	5	5	6	5
February	5.0	4	5	5	5	7
March	4.8	4	5	3	5	5
April	4.4		4	2	5	5
May	4.3		4	4	4	6
June	5.5		6	4	7	6
July	5.8		5	3	7	6
August	5.9		5	4	6	6
September	4.4		5	3	4	5
October	4.9		4	5	5	6
November	5.5		5	4	6	7
December	6.0		4	5	7	7
Average	5.0	4.0	4.7	3.8	5.4	5.9

19th 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	060°	066°	045°	037°	064°
February	112°	057°	041°	045°	063°
March	197°	085°	059°	095°	212°
April		205°	031°	143°	152°
May		220°	217°	233°	204°
June		239°	248°	224°	209°
July		251°	250°	228°	222°
August		247°	243°	231°	231°
September		225°	261°	153°	243°
October		042°	049°	023°	013°
November		035°	056°	027°	038°
December		036°	041°	031°	030°

Prevailing wind direction

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