Lugano, where it's located

In Lugano, located in the canton of Ticino, on the shores of the lake of the same name (also called Ceresio), 270 meters (885 feet) above sea level, the climate is humid temperate. Winters are quite cold, while summers are warm to hot, and characterized by a good amount of sunshine, but also by quite frequent thunderstorms. Along with Locarno, Lugano is the mildest city in Switzerland.
In the cold half of the year, the wind is generally weak or absent, except when the favonio (or föhn) blows, the warm and dry wind that comes down from the Alps and is able to bring clear skies and very good visibility. In the warm half of the year, the wind is weak or moderate and follows the breeze regime: during the warmest hours, the breeze blows from the lake towards the mountains, while after sunset and at night, it blows from the mountains to the lake.
Here are the average temperatures.
Lugano - Average temperatures
Min (°C)125812151817141052
Max (°C)791316202427262217117
Min (°F)343641465459646357504136
Max (°F)454855616875817972635245

Rainfall in Lugano is abundant, since it amounts to 1,550 millimeters (61 inches) per year. Winter is the relatively driest season. In spring and autumn, the rains are plentiful in periods of Atlantic depressions, since the southern currents are forced to rise over the Alps and condense. In late spring and summer, thunderstorms in the afternoon or evening are quite frequent (and sometimes intense). During the most intense waves of bad weather, which occur in autumn (but sometimes also in spring), the lake may overflow, flooding the lower areas of the city.
Here is the average precipitation.
Lugano - Average precipitation

Winter, from December to February, is cold enough, but owing to the mitigating influence of the lake, it is milder than in the major cities of Switzerland, and it's also milder than in the Po Valley. Fog is less frequent as well.
There is a moderate amount of rainy days, even though the winter is the driest season. Snow generally falls at least once every year, and it can sometimes be plentiful (for example, on January 27, 2006, 72 centimeters (28.5 inches) of snow fell), but it tends to melt soon enough because it occurs in conditions of southerly winds. In a year, an average of 26 cm (10.2 in) of snow falls. The record belongs to the winter of 1977/78, when a total of nearly three meters (10 feet) of snow fell.
We can not exclude very cold periods, with night frosts and temperatures around freezing or even below in the daytime. However, in these cases, the weather is usually dry. It's rare for the temperature to drop below -5 °C (23 °F), even though it can happen on colder winters. Here are some values recorded in the past: January 1985: -10 °C (14 °F); February 1991: -11 °C (12 °F); February 2012: -13 °C (9 °F).

Summer, from June to August, is warm to hot, and often sunny in the morning. The temperature is generally pleasant or at least bearable, in addition, there is some wind because of the lake breeze. Sometimes, an Atlantic front, able to bring some cool and rainy days, can affect this area; more often, thunderstorms can break out in the afternoon or in the evening. We can not exclude some hot days, with highs around 32/33 °C (90/91 °F); more rarely, higher values can be reached, for example, in July 1983 and in August 2003, the temperature reached 37 °C (99 °F).


The amount of sunshine in Lugano is acceptable in winter, when there are sunny days alternating with cloudy periods (in January, there are 4 hours of sunshine per day); in the other seasons, it is not very high, in fact, Atlantic disturbances pass over the area quite frequently in spring and autumn, while in summer, in periods of good weather, cloudiness in the afternoon can form, which can lead to thunderstorms. In July, the sunniest month, there are 8.2 hours of sunshine per day on average (in about 15 hours and 20 minutes of daylight, so the sun can be seen around 65% of the time).
Lugano - Sunshine

Best Time

The best periods to visit Lugano are spring and early summer, in particular, from mid-April to mid-June. September, too, is a good month. However, you have to take into account some rainy days in both periods.
Summer, which is the best time for sunbathing, can be hot, though this rarely happens: the temperature is usually acceptable, especially in June. As mentioned, in summer and in May, thunderstorms can break out in the afternoon or in the evening.