Climate Muara Wahau Airport 2020-2024

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

Calculated from historical METAR data of Sultan Aji Muhammad Sulaiman Sepinggan International Airport (WALL) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	93.8	91	96	93	94	95
February	93.7	95	96	89	96	92
March	92.2	89	90	92	92	94
April	91.7		82	96		94
May	91.6		90	93	89	93
June	89.4		90	92	92	84
July	88.0		92	92	86	77
August	88.3		94	87	86	88
September	89.5		95	87	87	86
October	90.3		92	93	90	84
November	91.1		88	95	85	90
December	93.5		94	98	92	91
Average	91.3	91.4	91.5	92.0	89.8	88.9

4th 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	98.4	96	100	98	99	99
February	98.1	99	99	97	99	98
March	96.9	95	95	96	100	98
April	95.6		87	99		97
May	97.2		94	99	97	99
June	95.5		95	99	97	93
July	96.9		99	99	95	91
August	95.5		97	95	96	96
September	96.1		99	96	95	95
October	96.8		98	98	96	94
November	97.0		94	100	96	97
December	97.9		97	99	98	97
Average	97.0	96.6	96.2	97.6	96.9	96.0

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	30.2	31	30	30	30	31
February	30.5	32	30	30	30	31
March	30.5	31	30	30	31	31
April	30.4		31	31		30
May	30.2		30	31	31	30
June	29.5		30	30	30	29
July	29.4		30	30	29	29
August	29.7		31	31	29	30
September	29.9		30	30	30	29
October	30.2		31	30	30	30
November	30.3		31	30	30	30
December	30.4		31	31	30	30
Average	30.2	31.2	30.4	30.2	29.8	29.9

23rd 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	25	22	23	25	24
February	23.2	25	23	24	20	24
March	21.0	22	22	21	22	15
April	22.8		24	24		24
May	23.3		19	23	22	25
June	24.7		24	25	25	24
July	23.2		25	19	20	24
August	23.5		25	24	22	23
September	24.4		26	24	21	25
October	24.8		25	24	24	25
November	22.8		25	25	19	23
December	23.2		23	25	22	25
Average	23.3	23.9	23.5	23.3	22.0	23.3

7th 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	7.4	8	9	8	10	3
February	5.8	4	7	10	4	5
March	8.3	11	12	10	8	5
April	6.6		6	5		4
May	8.1		7	10	9	5
June	9.8		9	5	9	15
July	10.1		9	11	13	14
August	8.9		3	11	12	8
September	9.1		3	14	10	12
October	9.6		3	13	13	13
November	8.7		9	13	10	8
December	6.6		7	6	7	8
Average	8.0	7.7	6.9	9.6	9.5	8.2

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	5.1	6	4	4	5	8
February	6.1	7	5	5	4	9
March	5.7	7	5	4	5	7
April	4.7		5	4		6
May	4.2		4	4	4	4
June	4.3		5	4	4	5
July	5.3		6	5	5	6
August	5.4		6	5	5	5
September	5.4		6	5	5	5
October	4.4		4	4	4	5
November	4.1		4	4	4	4
December	4.5		5	4	4	4
Average	5.2	6.3	4.8	4.4	4.3	5.6

23rd 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	027°	225°	030°	246°	048°
February	045°	047°	021°	028°	041°
March	045°	044°	335°	031°	050°
April		230°	233°		057°
May		217°	089°	226°	047°
June		223°	219°	223°	228°
July		222°	226°	228°	228°
August		220°	220°	232°	227°
September		220°	217°	233°	229°
October		208°	214°	226°	226°
November		067°	204°	270°	155°
December		056°	230°	265°	229°

Prevailing wind direction

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