Climate Comandante Ferraz Antarctic Station Helipad 2020-2024

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

Calculated from historical METAR data of Teniente Rodolfo Marsh Martin Airport (SCRM) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	26.5	27	28	30	15	15
February	28.5	22	25	26	31	33
March	27.2	27	35	27	34	25
April	26.4		35	25	29	18
May	27.1		15	24	24	23
June	20.4		20	23	25	22
July	22.2		17	24	24	20
August	19.4		18	24	0	14
September	21.6		14	12		14
October	22.2		15	25	0	17
November	22.2		34	13	0	25
December	29.5		28	44		20
Average	25.2	25.2	25.1	24.7	25.8	20.5

38th best VFR conditions of Chile

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	50.4	45	48	55	36	41
February	53.1	42	61	42	45	68
March	57.0	62	70	53	60	57
April	58.7		75	48	55	57
May	54.5		54	36	38	70
June	54.0		63	48	58	58
July	55.3		57	52	29	73
August	49.0		49	47	0	49
September	56.5		71	35		48
October	55.2		51	45	0	49
November	46.1		62	29	0	41
December	55.6		58	69		44
Average	52.6	48.7	59.6	46.3	47.0	51.8

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	2.0	-1	3	2	2	3
February	2.2	-1	2	2	3	4
March	1.7	1	2	1	2	2
April	0.2		1	-1	1	1
May	-2.9		0	-2	-1	-1
June	-3.6		-3	-2	-1	-2
July	-3.5		-2	-3	-2	-3
August	-4.8		-3	-2	-2	-6
September	-3.7		-4	-1		-3
October	-2.4		-3	-1	1	-1
November	-1.9		-1	0	0	0
December	1.1		0	1		2
Average	-1.7	-1.9	-1.2	-1.3	0.7	-1.6

38th highest temperature of Chile

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	-1.9	-3	1	0	1	1
February	-1.9	-2	0	0	1	1
March	-1.3	-1	0	-1	0	-1
April	-3.5		-2	-3	-2	-2
May	-4.0		-2	-5	-4	-4
June	-6.4		-6	-5	-4	-5
July	-6.1		-6	-6	-3	-6
August	-8.9		-6	-5	-2	-10
September	-7.9		-8	-4		-7
October	-5.7		-6	-3	1	-5
November	-2.1		-3	-1	0	-2
December	-1.0		-2	-1		0
Average	-3.1	-3.8	-4.7	-3.0	-2.5	-4.7

1st lowest temperature of Chile

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	22.8	30	16	24	21	14
February	16.7	16	14	14	17	15
March	22.2	20	20	20	14	17
April	22.0		18	21	17	18
May	20.1		26	17	17	11
June	27.4		39	23	12	17
July	23.4		34	25	18	20
August	28.7		44	14	0	37
September	26.0		25	21		34
October	23.3		31	23	0	26
November	19.4		21	18	100	19
December	17.0		10	12		12
Average	21.2	22.2	21.8	19.0	17.0	19.2

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	14.2	14	17	15	16	12
February	15.2	17	15	16	16	15
March	15.9	14	16	17	18	16
April	17.5		16	18	18	17
May	16.8		17	18	17	14
June	18.3		19	21	16	15
July	18.4		19	17	18	18
August	19.7		20	20	0	22
September	20.2		19	21		19
October	19.2		21	20	31	18
November	17.9		17	23	16	18
December	14.8		14	15		16
Average	16.7	15.0	17.1	18.3	16.8	16.5

38th highest wind speed of Chile

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	336°	299°	063°	317°	009°
February	293°	360°	282°	300°	012°
March	008°	298°	013°	295°	309°
April		319°	335°	279°	314°
May		334°	334°	308°	318°
June		079°	302°	299°	122°
July		330°	308°	350°	259°
August		303°	334°	360°	068°
September		283°	320°		347°
October		279°	286°	309°	306°
November		314°	295°	320°	305°
December		289°	300°		298°

Prevailing wind direction

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