The average temperature for the week of 1 September 2025 - 7 September 2025 was 21 °C (70 °F) during the day and 11 °C (52 °F) during the night. Both the daily and night temperatures in Luzern are roughly same as the long-term average, which is around 20 °C (68 °F) and 12 °C (54 °F) respectively. The average temperatures during different times of day (local time) were following: 7am 12 °C (54 °F), 10am 16 °C (61 °F), 1pm 19 °C (66 °F), 4pm 20 °C (68 °F), 7pm 17 °C (63 °F), 10pm 14 °C (57 °F).

The week had 3 days without rain, 1 day with light rain, 1 day with moderate rain and 2 days with heavy rain. Luzern received 150 mm (5.91 in) of precipitation throughout the week, which is above its long-term average of 28 mm (1.10 in). The daytime hours (from dawn to dusk) had an average cloud coverage of 47 %. There was a meteorological observation of mist and fog.

Average speed of wind was 2.2 m/s. The atmosferic pressure ranged from 1010 hpa to 1025 hpa. On average, the air humidity in Luzern was 83 %.

On average, there were 6 hours clear skies, 1 hour partially overcast skies, 4 hours overcast skies and 2 hours rainy weather during the daytime (from dawn to dusk). Average time of sunrise was 06:50, average time of sunset was 20:01.

Weather overview

Luzern (Switzerland) is a place with a mild climate. Temperatures during the day are in the range from 3 °C (37 °F) in January to 24 °C (76 °F) in July. The driest month is October with just 11 days of rain, on the contrary, the month when it rains the most is May with 16 days of rain. Temperatures during the night go from -2 °C (28 °F) in January to 14 °C (58 °F) in July.

January weather

The day temperature reaches its minimum in Luzern, and the minimum of the night temperature can be noticed as well in January. The beginning of the descent of the number of rainy days could be noticed, with its value being 12 days, and the rainfall amount starts to descent too. The humidity reaches its maximum, with its value being 82 %.

February weather

The day temperature rise's start could be observed, its value is 5 °C (40 °F) in Luzern, and the night temperature starts to rise too, with its value of -2 °C (29 °F). The number of rainy days continues to descent, while the minimum of the rainfall amount is observable in February. The beginning of the rise of the number of sun hours (without clouds) could be noticed, its value is 3 hours.

March weather

The day temperature continues to rise, the value of this measure is 10 °C (50 °F) in Luzern, and the rise of the night temperature can be observed too, the value of this measure is 2 °C (35 °F). The beginning of the rise of the rainfall amount could be noticed, its value is 97 mm (3.82 in), and the beginning of the rise of the number of rainy days could be noticed too in this month. The wind speed is on its maximum. The number of sun hours (without clouds) continues to rise, its value is 4 hours.

April weather

The number of rainy days continues to rise, with its value of 13 days in Luzern. The rise of the night temperature can be observed, its value is 5 °C (40 °F), and the day temperature rises similarly to the previous month too, with its value being 14 °C (57 °F). The minimum of the humidity is observable in April. The rise of the number of sun hours (without clouds) can be observed.

May weather

The number of rainy days reaches its maximum, its value is 16 days in Luzern, while the beginning of the rise of the rainfall amount could be noticed in May. The day temperature continues to rise, its value is 19 °C (66 °F), and the night temperature rises similarly to the previous month too, with its value being 9 °C (49 °F). The number of sun hours (without clouds) continues to rise.

June weather

The tourist season is about to start in Luzern. The day temperature rises similarly to the previous month, and the night temperature continues to rise as well, with its value of 12 °C (54 °F). The rainfall amount continues to rise. The day length reaches its maximum, the value of this measure is 16 hours. The number of sun hours (without clouds) rises similarly to the previous month, with its value of 6 hours.

July weather

The tourist season continues in Luzern. The day temperature is on its maximum, with its value of 24 °C (76 °F), and the maximum of the night temperature can be noticed too, with its value being 14 °C (58 °F). The rise of the rainfall amount can be observed, its value is 143 mm (5.63 in), while the number of rainy days descent's start could be observed, with its value being 15 days. The maximum of the number of sun hours (without clouds) can be noticed.

August weather

The day temperature starts to descent, with its value being 24 °C (74 °F) in Luzern, and the night temperature descent's start could be observed too, the value of this measure is 14 °C (57 °F). The tourist season continues. The maximum of the rainfall amount can be noticed, the value of this measure is 145 mm (5.72 in). The number of sun hours (without clouds) starts to descent, with its value being 6 hours.

September weather

The day temperature continues to descent, its value is 19 °C (66 °F) in Luzern, and the night temperature descents similarly to the previous month as well, its value is 11 °C (51 °F). The number of rainy days starts to descent, with its value being 12 days, and the beginning of the descent of the rainfall amount could be noticed as well, the value of this measure is 108 mm (4.26 in). The ongoing tourist season is noticeable in September. The number of sun hours (without clouds) continues to descent, the value of this measure is 5 hours.

October weather

The minimum of the number of rainy days is observable, with its value of 11 days in Luzern, while the rainfall amount descents similarly to the previous month. The descent of the day temperature can be observed, its value is 14 °C (57 °F), and the night temperature descents similarly to the previous month too, its value is 7 °C (44 °F). The number of sun hours (without clouds) descents similarly to the previous month, with its value being 4 hours. The wind speed is on its minimum, with its value being 2.

November weather

The day temperature continues to descent in Luzern, and the night temperature continues to descent too, with its value of 1 °C (35 °F). The number of rainy days rise's start could be observed. The number of sun hours (without clouds) continues to descent, with its value of 2 hours.

December weather

The rise of the number of rainy days can be observed, its value is 13 days in Luzern, while the rainfall amount starts to rise, with its value being 103 mm (4.04 in). The day temperature continues to descent, the value of this measure is 4 °C (39 °F), and the night temperature continues to descent too, the value of this measure is -1 °C (29 °F). The day length reaches its minimum, with its value being 8 hours. The minimum of the number of sun hours (without clouds) can be noticed, its value is 2 hours.

What level of humidity is to expect in April in Luzern?

Humidity in Luzern in April is 71 %.

Is May part of the dry season in Luzern?

No, May is not a dry month in Luzern, expect rain approximately 16 days in a month.

How many rainy days can I expect in Luzern in June?

In Luzern in June, we can expect 16 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 3.6 days of the week, or in general - 52 % days.

What temperature can I expect during the day in Luzern in July?

The average daily temperature in July in Luzern is 24 °C (76 °F). A comfortable temperature for most people, where it is neither too cold nor too hot, and a large number of activities can be carried out comfortably, including sunbathing by the water. Lighter clothing will be suitable - shorts, skirts, t-shirts, jackets; a light sweater and long trousers may also be useful.

Is August part of the wet season in Luzern?

No, there is no wet season in Luzern in August - you can expect 14 days of rain during the month.

Is September a good month to visit Luzern?

September is a good month to visit Luzern. There are some people, who may feel a slight chill at 19 °C (66 °F), but others will feel perfectly fine. The temperature of 11 °C (51 °F) at night may make it better to dine inside or to put on more clothes for a dinner outside.

How windy is it in Luzern in October?

In October in Luzern, there will be an average wind scale of 2. It is rather a milder or unnoticeable wind, therefore it will not bother you during your holiday.