Climate Locarno Airport 2020-2024

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

Calculated from historical METAR data of Locarno Airport (LSZL) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	86.4	91	85	94	80	97
February	84.6	87	80	94	85	94
March	85.0	81	81	84	95	90
April	91.8		94	92	90	92
May	91.1		94	95	94	74
June	96.3		97	97	96	94
July	98.1		98	100	95	98
August	96.8		95	98	98	97
September	93.5		90	91	94	95
October	85.9		90	91	89	90
November	86.7		96	92	83	93
December	85.8		85	86	92	77
Average	90.4	85.8	91.2	93.6	91.9	90.9

3rd best VFR conditions of Switzerland

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	94.5	100	93	100	86	100
February	94.2	96	93	99	97	97
March	93.6	92	87	96	99	97
April	97.6		97	98	97	98
May	95.2		99	99	98	76
June	98.3		99	98	100	97
July	99.6		100	100	98	100
August	98.5		98	99	99	98
September	97.6		97	93	97	99
October	93.3		95	95	94	94
November	95.9		97	98	91	99
December	92.2		91	97	95	88
Average	96.1	95.2	96.0	97.6	96.5	95.0

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	7.9	9	8	10	6	9
February	10.7	12	11	12	11	12
March	13.8	14	15	13	14	13
April	17.7		18	17	16	19
May	21.4		21	23	20	23
June	26.4		26	27	27	24
July	28.2		28	30	26	28
August	27.6		28	29	26	28
September	22.9		24	22	23	23
October	18.0		19	19	16	16
November	11.7		12	13	11	13
December	7.4		10	6	8	6
Average	17.1	11.4	18.4	18.7	17.0	17.8

2nd highest temperature of Switzerland

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	-2.5	-1	0	-2	-2	-2
February	0.5	2	0	0	2	1
March	3.3	5	4	2	2	3
April	6.5		6	6	6	7
May	11.6		12	14	9	12
June	15.7		16	16	16	15
July	17.5		18	18	16	18
August	16.9		17	18	16	17
September	13.1		14	12	14	13
October	8.8		11	11	7	7
November	3.1		2	3	3	3
December	-1.2		1	-1	-1	0
Average	7.3	2.4	8.5	8.3	7.3	7.7

15th lowest temperature of Switzerland

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	6.9	7	8	0	18	2
February	9.1	22	2	1	10	1
March	11.5	32	5	3	3	10
April	11.9		9	9	11	10
May	13.7		16	11	14	9
June	8.0		6	9	5	15
July	4.7		4	2	12	4
August	7.6		9	4	9	11
September	7.6		16	8	7	7
October	12.0		15	11	12	14
November	14.1		8	9	16	0
December	12.9		12	18	4	23
Average	11.0	21.9	9.1	6.7	9.9	9.0

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	2.7	3	3	3	2	2
February	2.9	2	3	4	3	4
March	3.6	3	4	3	4	4
April	3.5		4	4	4	3
May	3.4		3	3	4	4
June	3.3		3	3	3	4
July	3.5		3	4	4	4
August	3.4		4	4	3	4
September	2.9		3	3	3	3
October	2.4		3	2	3	3
November	2.1		3	2	2	2
December	2.2		2	2	2	2
Average	3.1	2.7	3.1	3.2	3.1	3.1

2nd highest wind speed of Switzerland

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	109°	133°	151°	100°	173°
February	229°	220°	230°	172°	255°
March	249°	245°	254°	239°	238°
April		243°	251°	239°	255°
May		250°	242°	251°	243°
June		258°	247°	245°	235°
July		245°	251°	207°	252°
August		232°	242°	230°	199°
September		247°	230°	249°	244°
October		215°	252°	197°	246°
November		125°	133°	138°	218°
December		131°	101°	133°	092°

Prevailing wind direction

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