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Locarno, Switzerland climate
Cfa Humid subtropical
Locarno has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is July with an average daily high near 81°F, while the coldest is January averaging around 34°F at night. Around 62 inches of precipitation falls each year, peaking in May (7.0 inches) and easing off in February (2.4 inches).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Locarno climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 45 | 48 | 56 | 62 | 69 | 77 | 81 | 80 | 72 | 62 | 53 | 46 |
| Avg temp (°F) | 39 | 41 | 48 | 54 | 61 | 69 | 73 | 72 | 64 | 56 | 47 | 40 |
| Avg low (°F) | 34 | 35 | 41 | 47 | 54 | 61 | 64 | 64 | 58 | 50 | 42 | 36 |
| Precipitation (in) | 2.6 | 2.4 | 3.0 | 5.4 | 7.0 | 6.8 | 6.2 | 6.2 | 6.5 | 5.9 | 6.6 | 3.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 45 | 48 | 56 | 62 | 69 | 77 |
| Avg temp (°F) | 39 | 41 | 48 | 54 | 61 | 69 |
| Avg low (°F) | 34 | 35 | 41 | 47 | 54 | 61 |
| Precipitation (in) | 2.6 | 2.4 | 3.0 | 5.4 | 7.0 | 6.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 81 | 80 | 72 | 62 | 53 | 46 |
| Avg temp (°F) | 73 | 72 | 64 | 56 | 47 | 40 |
| Avg low (°F) | 64 | 64 | 58 | 50 | 42 | 36 |
| Precipitation (in) | 6.2 | 6.2 | 6.5 | 5.9 | 6.6 | 3.1 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 68 | 70 | 72 | 75 | 75 | 69 | 62 | 61 | 63 | 65 | 70 | 70 |
| Relative humidity (%) | 75 | 73 | 71 | 71 | 72 | 71 | 68 | 68 | 72 | 77 | 78 | 75 |
| Wind speed (mph) | 2.7 | 3.0 | 3.3 | 3.3 | 3.3 | 3.1 | 3.0 | 2.9 | 3.0 | 2.7 | 2.7 | 2.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 68 | 70 | 72 | 75 | 75 | 69 |
| Relative humidity (%) | 75 | 73 | 71 | 71 | 72 | 71 |
| Wind speed (mph) | 2.7 | 3.0 | 3.3 | 3.3 | 3.3 | 3.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 62 | 61 | 63 | 65 | 70 | 70 |
| Relative humidity (%) | 68 | 68 | 72 | 77 | 78 | 75 |
| Wind speed (mph) | 3.0 | 2.9 | 3.0 | 2.7 | 2.7 | 2.6 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from a national meteorological service, measured at Lugano, about 22 km from the city centre.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.