Climate Sultan Syarif Kasim II International Airport / Roesmin Nurjadin AFB 2020-2024

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

Calculated from historical METAR data of Sultan Syarif Kasim II International Airport / Roesmin Nurjadin AFB (WIBB) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	65.9	64	64	59	57	65
February	63.6	70	66	55	58	71
March	62.4	64	55	68	55	61
April	69.9	73	68	58	74	66
May	75.0		80	71	66	78
June	77.8		80	64	83	81
July	75.4		77	66	78	74
August	69.4		70	51	62	85
September	70.9		69	75	69	73
October	70.0		42	67	74	85
November	71.8		68	63	80	65
December	66.6		57	54	57	75
Average	69.5	67.7	65.9	62.7	67.4	74.7

18th best VFR conditions of Indonesia

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	92.8	92	92	90	92	96
February	91.5	91	95	91	98	98
March	92.4	93	88	94	91	100
April	94.6	96	96	91	95	95
May	95.3		94	93	96	97
June	96.3		95	94	98	96
July	96.2		96	95	98	98
August	92.4		94	89	96	99
September	93.4		93	96	93	93
October	94.0		90	93	94	97
November	94.0		91	91	97	95
December	93.1		88	87	92	96
Average	93.7	93.0	92.4	91.9	95.0	96.4

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	31	30	31
February	31.1	32	31	31	31	30
March	31.6	33	31	32	31	30
April	32.3	33	32	32	32	32
May	32.1		33	32	32	31
June	31.5		33	31	32	30
July	31.8		32	32	32	31
August	31.8		31	31	31	32
September	31.4		32	31	32	31
October	31.8		32	31	32	32
November	31.3		32	31	31	31
December	30.6		30	30	30	31
Average	31.5	31.8	31.4	31.3	31.4	31.1

13th highest temperature of Indonesia

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	23.5	24	24	23	23	25
February	23.4	24	23	22	24	26
March	23.6	24	24	24	23	27
April	23.9	24	24	23	22	25
May	24.2		26	24	24	25
June	24.3		25	23	24	26
July	23.9		24	23	23	24
August	23.6		24	23	24	24
September	23.6		23	23	24	23
October	24.0		25	23	24	24
November	23.6		24	24	24	24
December	23.4		24	23	23	24
Average	23.7	24.0	24.0	23.3	23.2	24.6

6th lowest temperature of Indonesia

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	6.0	7	7	6	11	4
February	4.5	5	6	5	2	2
March	4.8	5	9	3	5	0
April	2.9	4	3	2	4	2
May	2.8		2	3	3	2
June	2.9		1	3	2	0
July	2.6		2	2	4	3
August	2.9		2	6	3	2
September	4.1		4	2	6	5
October	3.8		2	7	4	1
November	4.1		5	4	2	5
December	5.8		11	7	6	3
Average	3.9	5.1	4.7	4.0	4.1	2.7

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	4.5	5	5	4	4	4
February	4.2	4	6	4	4	4
March	4.0	4	5	4	4	4
April	3.6	4	5	4	4	3
May	4.0		5	4	3	5
June	4.2		6	4	4	5
July	5.1		5	5	5	5
August	5.0		6	4	4	5
September	4.4		6	3	4	5
October	4.0		5	5	4	3
November	4.0		4	5	4	3
December	4.5		4	5	5	4
Average	4.3	4.4	5.0	4.2	4.0	4.3

13th highest wind speed of Indonesia

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	013°	357°	019°	020°	018°
February	025°	003°	003°	023°	039°
March	034°	048°	336°	021°	358°
April	073°	320°	332°	331°	110°
May		185°	230°	164°	166°
June		177°	197°	186°	162°
July		174°	173°	169°	163°
August		168°	169°	161°	165°
September		169°	178°	157°	169°
October		179°	307°	223°	202°
November		340°	322°	322°	352°
December		357°	333°	355°	348°

Prevailing wind direction

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