Climate Sam Ratulangi Airport 2020-2024

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

Calculated from historical METAR data of Sam Ratulangi Airport (WAMM) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	80.8	73	88	77	81	87
February	81.3	90	80	70	84	89
March	86.7	87	86	80	85	87
April	90.1		95	91	95	87
May	91.8		95	90	89	93
June	90.4		89	93	93	86
July	90.8		88	91	88	89
August	93.1		97	87	90	92
September	92.7		95	89	91	92
October	92.2		96	91	94	89
November	89.5		91	87	88	95
December	87.5		90	93	76	89
Average	88.2	83.2	90.9	86.4	87.6	89.3

7th 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	94.4	94	95	95	93	96
February	94.5	98	94	89	99	97
March	95.8	94	97	96	96	95
April	96.6		97	98	99	95
May	98.4		99	99	97	99
June	97.0		95	98	98	95
July	98.0		97	97	98	98
August	98.1		99	99	96	96
September	97.9		98	96	98	98
October	97.5		99	97	99	96
November	97.1		98	96	95	98
December	96.3		95	98	94	96
Average	96.6	94.9	96.9	96.4	96.7	96.6

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	31	31	30	30	32
February	30.6	31	30	30	31	31
March	31.1	31	31	31	31	31
April	32.1		32	32	32	32
May	32.8		33	32	32	33
June	32.4		32	32	33	32
July	32.4		32	32	33	32
August	33.2		34	32	33	33
September	33.0		33	32	33	32
October	32.9		34	32	33	32
November	32.2		33	32	32	32
December	31.3		32	31	30	31
Average	31.9	30.7	32.2	31.4	31.9	32.0

11th 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	23.2	24	23	23	24	23
February	22.7	23	23	23	24	23
March	23.0	24	23	24	24	23
April	23.3		24	24	24	23
May	23.2		24	22	24	24
June	22.8		23	23	23	24
July	23.0		24	22	24	24
August	22.5		23	23	23	23
September	22.7		23	23	23	23
October	22.9		22	24	24	23
November	23.3		24	23	24	23
December	23.1		24	22	24	23
Average	23.0	23.6	23.1	22.9	23.5	23.2

2nd 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	20.9	22	13	16	18	14
February	20.7	8	22	32	15	13
March	15.2	16	13	12	13	13
April	10.7		5	9	4	10
May	8.5		2	10	8	3
June	11.6		8	5	7	9
July	11.0		9	12	9	12
August	7.0		3	11	8	9
September	8.4		3	8	13	11
October	8.7		5	7	7	12
November	10.8		9	9	9	4
December	13.3		6	10	16	10
Average	12.8	15.3	7.9	11.7	10.3	9.8

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	4.6	4	4	4	5	5
February	5.2	6	4	4	6	6
March	5.0	5	4	5	4	5
April	4.8		4	5	5	5
May	4.1		5	3	4	4
June	4.0		4	4	4	4
July	5.0		6	4	5	5
August	6.1		8	5	4	5
September	5.0		6	4	4	4
October	4.3		5	4	4	4
November	4.2		4	3	4	4
December	4.7		4	4	5	5
Average	4.8	5.0	4.8	4.1	4.5	4.7

11th 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	358°	270°	309°	287°	344°
February	021°	304°	308°	289°	015°
March	034°	321°	306°	319°	350°
April		295°	295°	298°	348°
May		163°	344°	289°	316°
June		053°	049°	242°	280°
July		170°	082°	225°	192°
August		168°	130°	290°	210°
September		168°	014°	290°	299°
October		142°	041°	306°	297°
November		349°	321°	294°	292°
December		343°	274°	278°	284°

Prevailing wind direction

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