Climate Kertajati International Airport 2020-2024

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

Calculated from historical METAR data of Halim Perdanakusuma International Airport (WIHH) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	8.4	17	0	0	0	0
February	2.5	2	0	0	0	0
March	3.6	9	0	0	0	0
April	3.8		0	0	0	0
May	2.2		1		0	0
June	5.7		3		0	0
July	1.9		0		0	0
August	3.3		0	0	0	0
September	5.2		3	0	0	0
October	4.8		3	0	0	0
November	5.0		1	5	0	0
December	12.4		12	10	1	0
Average	5.2	9.3	2.2	0.6	0.1

25th 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	84.0	85	96	92	75	62
February	75.4	82	88	85	62	68
March	76.9	80	86	81	65	71
April	77.7		91	83	66	75
May	76.2		77		69	82
June	73.8		79		59	76
July	75.7		81		68	73
August	80.7		83	92	82	74
September	84.4		96	77	86	82
October	85.0		91	82	84	74
November	84.1		84	89	88	71
December	85.7		86	90	81	89
Average	80.7	82.4	85.8	85.2	74.0	74.9

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	31.0	32	31	32	30	31
February	30.8	32	31	31	30	31
March	31.9	32	31	33	32	32
April	32.4		33	33	32	33
May	32.8		33		33	33
June	32.4		33		32	33
July	32.7		33		33	33
August	32.9		34	33	33	33
September	33.6		35	33	33	34
October	33.7		36	32	33	33
November	32.7		34	32	32	33
December	31.9		34	32	32	31
Average	32.3	32.0	33.2	32.1	32.2	32.4

3rd 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	24.9	25	27	25	25	25
February	24.6	25	25	25	24	25
March	24.5	24	25	23	24	25
April	25.1		25	25	24	25
May	25.3		26		25	25
June	24.8		25		25	25
July	23.9		24		24	24
August	24.0		22	29	23	25
September	24.7		24	28	25	24
October	25.3		25	27	25	25
November	25.2		25	28	25	25
December	24.7		25	29	25	25
Average	24.8	24.9	24.7	25.8	24.5	24.8

24th 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	11.1	12	6	5	17	14
February	12.8	9	14	10	15	18
March	8.6	14	9	6	5	8
April	3.1		3	9	2	3
May	2.4		1		3	4
June	3.3		4		5	2
July	2.0		4		2	2
August	0.6		0	1	2	1
September	2.4		0	6	4	1
October	2.1		0	7	5	4
November	4.4		3	7	2	6
December	6.7		4	8	8	12
Average	5.9	11.8	3.3	6.6	5.8	6.3

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	6.4	7	8	5	6	5
February	5.5	5	8	5	5	5
March	5.6	7	5	6	5	5
April	5.8		6	5	6	6
May	6.1		6		7	7
June	5.8		6		5	7
July	5.8		6		6	7
August	6.7		7	7	7	7
September	7.3		8	6	7	7
October	6.7		9	6	5	6
November	6.3		6	7	7	7
December	6.4		6	7	5	9
Average	6.2	6.1	6.5	5.8	6.0	6.4

3rd 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	261°	265°	281°	277°	299°
February	292°	259°	276°	298°	306°
March	261°	308°	259°	287°	309°
April		292°	284°	357°	025°
May		062°		068°	067°
June		063°		064°	074°
July		061°		063°	066°
August		057°	058°	070°	065°
September		049°	049°	062°	051°
October		043°	267°	013°	038°
November		028°	256°	253°	058°
December		322°	252°	274°	256°

Prevailing wind direction

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