Ollon Weather in August
Thinking of visiting Ollon in August? Expect pleasant temperatures reaching 20°C (68°F) during the day, dropping to 9°C (48°F) at night. Heavy showers are common during the rainy season.
Rainfall in Ollon in August
As part of the rainy season, Ollon sees around 16 days of rain in August, with an average of 193 mm (7.6 in). Rain during the rainy season is significant rather than just light drizzle. Expect proper showers on most rainy days.
Temperature in Ollon in August
Ollon in August gets highs of 20°C (68°F) during the day and drops to 9°C (48°F) at night. During August, you'll experience the summer season. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights fall to 9°C (48°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Ollon in August
There are approximately 248 hours of sunshine this month, despite being the rainy season. Rain often arrives in the late afternoon or evening, keeping mornings and early afternoons sunny. Even during the wet season, it could still be a nice time to visit.So this is a great month to visit if you prefer dry days with pleasant temperatures.
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 Ollon's climate page.
Ollon Temperature in August
Min Temperature
9°C (48°F)
Max Temperature
20°C (68°F)
Chance of Rain
52%
Precipitation
193 mm (7.6 in)
Rainy days
16 days
Humidity
67% *
Sunshine
248 hours *
Percentage Sunshine
65% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Ollon typically drop from around 25°C (77°F) at the start of August to approximately 22°C (72°F) by the end. Nights are cool, with lows typically ranging from 11°C (52°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 Ollon in August
Browse day-by-day weather records for Ollon spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ollon historical weather extremes in August
Our historical data for Ollon spans 1976 to 2025, revealing these weather extremes.
- The hottest August day on record in Ollon reached 37°C (99°F) (August 24, 2023).
- The lowest daytime temperature in August was 12°C (54°F), recorded on August 9, 2007.
- The coldest night in August in Ollon was on August 25, 1996, with a minimum of -3°C (27°F).
- The heaviest August precipitation occurred on August 22, 2005, when 66 mm (2.6 in) of precipitation fell.
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
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unpleasant
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What to Wear in Ollon 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. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Ollon 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 Ollon's climate page.
Temperature Rainfall Sunshine Humidity
See the full Ollon climate overview or explore weather in Switzerland.
