Lucerne weather in August
Temperature, sea and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Good
Best time to visit: May – September
What is the weather like in Lucerne in August?
In August, Lucerne is warm: daytime highs average 23 °C, and nights cool down to about 15 °C. The sun shines for around 7 hours a day. It rains often – on about 15 days, adding up to 152 mm. All in all, August is a good month for a holiday in Lucerne.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 70 | 71 | 72 |
| Day | 23° | 23° | 19° |
| Night | 15° | 15° | 12° |
| Sun | 8 h | 7 h | 6 h |
| Rain days | 16 | 15 | 12 |
More details for August
- Daylight
- 14 h 18 min06:23 – 20:40
- UV index
- 7 · highclear sky, noon (estimate)
- Muggy days
- 1 daydew point 18 °C or more
- Wind
- 9 km/haverage daily peak
- Cloud cover
- 57 %on average
- Hot days
- 2 days30 °C or more
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+2Europe/Zurich
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %68 %
- Few rainy daysweight 30 %24 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
Lucerne in August: quick answers
Is Lucerne hot in August?
Warm rather than hot: in August, daytime highs in Lucerne average 23 °C and nights cool to about 15 °C. On about 2 days the thermometer climbs to 30 °C or more.
Does it rain much in Lucerne in August?
It rains often – on about 15 days, adding up to 152 mm.
Lucerne month by month
The whole year in LucerneAll destinations: Switzerland
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)