Climate Sawang Daeng Din Field 2020-2024

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

Calculated from historical METAR data of Sakon Nakhon Airport (VTUI) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	92.3	97	83	86	87	89
February	76.3	69	86	92	81	93
March	70.1	76	76	85	68	67
April	84.1	74	69	84	92	96
May	88.6		81	84	92	94
June	86.0		73	93	79	91
July	78.4		64	73	85	89
August	77.9		58	69	94	75
September	76.2		44	74	79	76
October	87.9		81	87	88	88
November	91.9		88	85	97	95
December	92.4		93	94	87	94
Average	82.8	78.7	74.2	83.2	85.6	86.9

21st 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	98.7	100	97	96	98	100
February	95.5	98	97	97	97	99
March	95.1	97	100	96	93	96
April	98.9	99	100	98	99	99
May	98.8		100	98	100	99
June	98.9		98	99	100	100
July	97.6		100	99	99	99
August	97.9		98	100	100	98
September	97.6		96	97	99	99
October	98.9		100	99	99	99
November	99.3		99	99	100	100
December	98.2		100	100	97	98
Average	97.9	98.3	98.6	98.1	98.4	98.7

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	29.5	32	28	30	27	31
February	31.3	37	31	28	31	31
March	33.2	34	34	33	33	34
April	35.1	40	37	33	34	34
May	33.7		36	31	35	36
June	32.7		33	33	33	33
July	31.7		33	32	32	33
August	31.2		31	32	33	31
September	31.4		31	32	31	32
October	31.0		32	31	31	28
November	31.1		32	33	31	30
December	29.1		30	29	28	28
Average	32.1	35.8	32.3	31.3	31.4	31.7

26th 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	19	14	19
February	18.8	20	19	19	18	19
March	22.8	23	22	24	23	23
April	24.9	28	26	24	26	24
May	25.6		27	25	27	26
June	25.7		26	26	27	26
July	25.5		26	26	26	26
August	25.1		25	25	26	25
September	25.0		25	25	25	26
October	23.0		24	22	24	22
November	20.9		21	21	22	20
December	17.1		18	17	17	16
Average	22.5	22.0	22.8	22.7	22.9	22.6

18th 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	0.8	0	5	1	0	0
February	1.5	1	1	5	2	0
March	1.0	2	0	1	1	3
April	1.1	0	0	1	1	1
May	3.2		1	7	2	1
June	5.4		12	1	5	4
July	10.6		5	4	6	4
August	12.5		28	7	1	15
September	10.5		22	8	11	7
October	4.2		5	3	5	14
November	0.6		0	1	0	2
December	0.4		0	0	0	0
Average	4.0	0.7	6.5	3.2	2.9	4.1

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	5.0	4	5	5	6	5
February	5.1	4	5	6	5	6
March	4.9	4	6	5	5	4
April	4.9	5	5	5	5	4
May	4.3		4	5	4	5
June	4.5		4	3	5	5
July	4.8		4	4	6	4
August	4.6		4	3	5	4
September	3.9		4	4	4	4
October	4.3		3	4	4	4
November	4.5		4	4	5	5
December	4.9		5	5	5	5
Average	4.6	4.3	4.2	4.3	4.9	4.7

26th 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	108°	095°	119°	111°	126°
February	112°	105°	118°	120°	124°
March	090°	116°	114°	115°	122°
April	182°	144°	107°	138°	114°
May		158°	138°	192°	128°
June		190°	219°	238°	201°
July		186°	142°	224°	188°
August		211°	163°	215°	210°
September		126°	089°	105°	118°
October		078°	071°	087°	070°
November		068°	092°	100°	082°
December		082°	088°	097°	096°

Prevailing wind direction

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