Climate Chamonate Airport 2020-2024

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

Calculated from historical METAR data of Desierto de Atacama Airport (SCAT) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	63.3	55	63	59	60	74
February	68.8	56	62	79	71	63
March	61.5	53	73	62	64	58
April	59.5		49	51	62	68
May	63.3		54	55	69	58
June	64.9		52	73	60	66
July	61.9		62	55	54	73
August	61.5		67	53	69	61
September	58.7		69	62	47	54
October	56.1		63	54		51
November	53.9		52	42		54
December	56.6		51	57		46
Average	60.4	54.5	59.6	57.6	62.6	59.9

34th 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	98.0	98	98	100	99	100
February	97.5	96	96	99	99	98
March	96.6	96	98	99	97	98
April	92.0		90	91	96	98
May	91.3		89	91	90	96
June	90.5		84	95	90	94
July	89.6		92	90	86	91
August	92.6		97	89	94	95
September	92.2		96	92	90	95
October	91.1		95	93		93
November	94.6		98	91		95
December	95.1		95	95		94
Average	94.0	96.6	94.1	93.4	93.8	95.5

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	23.3	23	23	24	22	24
February	23.8	24	24	24	23	23
March	22.2	22	24	22	22	22
April	20.1		21	19	20	21
May	18.2		18	17	19	19
June	17.1		18	17	16	18
July	16.4		18	15	15	18
August	16.8		19	16	17	16
September	17.4		19	17	16	17
October	18.0		19	18		18
November	19.7		20	19		19
December	21.2		21	22		21
Average	19.9	22.9	20.1	18.9	18.9	19.5

11th 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	16.2	16	15	18	15	17
February	16.7	17	17	18	15	17
March	15.5	16	16	17	15	16
April	13.3		14	13	13	14
May	11.0		11	11	11	12
June	9.5		10	9	10	10
July	8.9		11	9	8	8
August	9.7		11	9	9	10
September	9.6		11	9	10	11
October	11.2		12	11		11
November	12.8		12	13		12
December	14.4		14	15		14
Average	12.8	16.1	12.8	12.5	11.8	12.6

32nd 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	0.6	1	1	0	1	0
February	0.8	2	1	0	1	1
March	1.3	2	0	2	0	2
April	1.0		0	2	1	2
May	0.7		0	0	2	0
June	1.1		2	0	3	1
July	0.9		0	3	2	1
August	1.0		0	3	0	2
September	2.0		0	0	4	4
October	2.2		1	1		6
November	2.6		1	3		3
December	1.9		2	0		5
Average	1.3	1.5	0.8	1.2	1.1	2.3

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	8.3	9	8	10	9	8
February	7.9	8	8	9	8	7
March	7.8	8	8	9	8	7
April	7.1		7	8	8	7
May	7.0		7	7	8	6
June	7.2		7	7	7	8
July	6.8		7	7	6	8
August	7.5		8	8	8	7
September	8.2		9	8	10	8
October	8.6		8	8		8
November	8.3		9	8		8
December	8.2		9	8		9
Average	7.8	8.3	8.0	8.1	7.9	7.6

11th 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	275°	267°	291°	282°	271°
February	276°	278°	277°	262°	274°
March	288°	276°	309°	279°	271°
April		283°	299°	274°	280°
May		296°	295°	290°	299°
June		318°	288°	292°	260°
July		265°	290°	271°	258°
August		273°	296°	266°	288°
September		270°	275°	289°	294°
October		277°	298°		292°
November		279°	286°		284°
December		277°	290°		284°

Prevailing wind direction

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