Lucerne Weather in August
In Lucerne, August brings high daytime temperatures around 23°C (73°F), with nights cooling to 13°C (55°F). This month falls within the rainy season, so expect frequent rainfall.
Rainfall in Lucerne in August
Lucerne is in the rainy season in August, with rain on around 17 days and an average of 206 mm (8.1 in). Rainy season showers tend to be fairly substantial. A good rain jacket or umbrella is worth having with you most days.
Temperature in Lucerne in August
August in Lucerne sees highs of 23°C (73°F) and lows of 13°C (55°F) overnight. This month falls in the summer season. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights cool down to 13°C (55°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Lucerne in August
You can expect a moderate amount of sunlight, with approximately 158 hours. Even though this month is part of the wet season, you can still see the sun occasionally.If you prefer dry days with pleasant temperatures, September typically offers the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Switzerland, check out our Lucerne's climate page.
Lucerne Temperature in August
Min Temperature
13°C (55°F)
Max Temperature
23°C (73°F)
Chance of Rain
56%
Precipitation
206 mm (8.1 in)
Rainy days
17 days
Humidity
76% *
Sunshine
158 hours *
Percentage Sunshine
52% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Lucerne typically drop from around 24°C (75°F) at the start of August to approximately 21°C (70°F) by the end. Nights are cool, with lows typically ranging from 10°C (50°F) to 14°C (57°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Lucerne in August
Browse day-by-day weather records for Lucerne spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Lucerne historical weather extremes in August
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Lucerne.
- On August 24, 2023, temperatures climbed to 35°C (95°F), marking the warmest August day on record.
- The coldest August day was on August 28, 1989, with a maximum of 10°C (50°F).
- The lowest overnight temperature recorded in August was -2°C (28°F) (August 31, 1995).
Best Places in Switzerland in August
Find out more about the weather in Switzerland and which places have the best travel conditions in this month. See all of Switzerland in August →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Lucerne in August
Comfortable temperatures call for an easy wardrobe in August. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. It's going to pour! Pack a good poncho and prepare for very wet conditions. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Lucerne in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Switzerland, check out our Lucerne's climate page.
Temperature Rainfall Sunshine Humidity
See the full Lucerne climate overview or explore weather in Switzerland.
