August weather forecastSumiswald, Switzerland
August
Weather in August
August, the last month of the summer in Sumiswald, is another pleasant month, with temperature in the range of an average low of 11.2°C (52.2°F) and an average high of 22.3°C (72.1°F).Temperature
On the advent of August, Sumiswald's average high-temperature exhibits a minor adjustment to a still agreeable 22.3°C (72.1°F) from July's 22.5°C (72.5°F). Throughout the nights in August, Sumiswald experiences an average low-temperature of 11.2°C (52.2°F).Humidity
The average relative humidity in August in Sumiswald is 78%.Rainfall
In August, in Sumiswald, the rain falls for 16.5 days. Throughout August, 84mm (3.31") of precipitation is accumulated. In Sumiswald, during the entire year, the rain falls for 158.6 days and collects up to 789mm (31.06") of precipitation.Snowfall
In Sumiswald, snow does not fall in June through September.Daylight
In August, the average length of the day is 14h and 11min.On the first day of the month, sunrise is at 06:09 and sunset at 21:01. On the last day of August, sunrise is at 06:47 and sunset at 20:10 CEST.
Sunshine
With an average of 10.3h of sunshine, August has the most sunshine of the year.UV index
In Sumiswald, the average daily maximum UV index in August is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 4 during August translates into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Sumiswald, Switzerland
- Average high temperature in August: 22.3°C
The warmest month (with the highest average high temperature) is July (22.5°C).
The month with the lowest average high temperature is January (2.3°C).
- Average low temperature in August: 11.2°C
The month with the highest average low temperature is July (11.4°C).
The coldest month (with the lowest average low temperature) is February (-4.3°C).
Average pressure in August
Sumiswald, Switzerland
- Average pressure in August: 1017.8mbar
The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in August
Sumiswald, Switzerland
- Average wind speed in August: 6.1km/h
The windiest month (with the highest average wind speed) is March (8.6km/h).
The calmest month (with the lowest average wind speed) is August (6.1km/h).
Average humidity in August
Sumiswald, Switzerland
- Average humidity in August: 78%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is July (77%).
Average rainfall in August
Sumiswald, Switzerland
- Average rainfall in August: 84mm
The wettest month (with the highest rainfall) is June (99mm).
The driest month (with the least rainfall) is September (37mm).
Average rainfall days in August
Sumiswald, Switzerland
- Average rainfall days in August: 16.5 days
The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is February (8.4 days).
Average snowfall in August
Sumiswald, Switzerland
- Average snowfall in August: 0mm
The month with the highest snowfall is January (269mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in August
Sumiswald, Switzerland
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Sumiswald, Switzerland
- Average daylight in August: 14h and 12min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in August: 10h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in August
Sumiswald, Switzerland
- Average sunshine days in August: 10.8 days
The month with the most sunshine days is October (17.4 days).
The month with the least sunshine days is June (8.3 days).
Average UV index in August
Sumiswald, Switzerland
- Average UV index in August: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in August
Sumiswald, Switzerland
- Average cloud cover in August: 32
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in August
Sumiswald, Switzerland
- Average visibility in August: 8km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (8km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (8km).





