July weather forecastPerroy, Switzerland

July

Weather in July

July is an agreeable summer month in Perroy, Switzerland, with temperature in the range of an average high of 22.2°C (72°F) and an average low of 12.3°C (54.1°F).

Temperature

The arrival of July brings an average high-temperature of a pleasant 22.2°C (72°F), subtly diverging from June's 19.6°C (67.3°F). The temperature dips to an average of 12.3°C (54.1°F) during July nights.

Humidity

In July, the average relative humidity is 77%.

Rainfall

In Perroy, during July, the rain falls for 18.8 days and regularly aggregates up to 81mm (3.19") of precipitation. In Perroy, during the entire year, the rain falls for 183.4 days and collects up to 862mm (33.94") of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In July, the average length of the day is 15h and 23min.
On the first day of the month, sunrise is at 05:46 and sunset at 21:30. On the last day of July, in Perroy, sunrise is at 06:15 and sunset at 21:06 CEST.

Sunshine

July and August, with an average of 10.7h of sunshine, are months with the most sunshine in Perroy.

UV index

The months with the highest UV index are June and July, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In July, the maximum UV index of 5 suggests this advice:
Take necessary precautions - Protection from skin and eye injury is mandatory. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun.

Frequently asked questions

In July, in Perroy, the average high-temperature is 22.2°C (72°F), and the average low-temperature is 12.3°C (54.1°F).

In Perroy, Switzerland, the average relative humidity in July is 77%.

In Perroy, Switzerland, in July, during 18.8 rainfall days, 81mm (3.19") of precipitation is typically accumulated.

June through September are months without snowfall in Perroy.

In Perroy, the average day length in July is 15h and 23min.

On the first day of July in Perroy, sunrise is at 05:46 and sunset at 21:30. On the last day of the month, sunrise is at 06:15 and sunset at 21:06 CEST.

July and August, with an average of 10.7h of sunshine, are months with the most sunshine in Perroy, Switzerland.

In July, the average sunshine duration is 10.7h.

June and July, with an average maximum UV index of 5, are months with the highest UV index in Perroy, Switzerland.

In Perroy, Switzerland, the average daily maximum UV index in July is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Perroy, Switzerland

  • Average high temperature in July: 22.2°C

The warmest month (with the highest average high temperature) is August (22.3°C).
The month with the lowest average high temperature is January (3.3°C).

  • Average low temperature in July: 12.3°C

The months with the highest average low temperature are July and August (12.3°C).
The coldest month (with the lowest average low temperature) is February (-2.8°C).

Average pressure in July
Perroy, Switzerland

  • Average pressure in July: 1017.1mbar

The month with the highest atmospheric pressure is December (1021.1mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).

Average wind speed in July
Perroy, Switzerland

  • Average wind speed in July: 7.2km/h

The windiest month (with the highest average wind speed) is February (11.2km/h).
The calmest month (with the lowest average wind speed) is August (6.7km/h).

Average humidity in July
Perroy, Switzerland

  • Average humidity in July: 77%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is August (76%).

Average rainfall in July
Perroy, Switzerland

  • Average rainfall in July: 81mm

The wettest month (with the highest rainfall) is December (103mm).
The driest month (with the least rainfall) is September (42mm).

Average rainfall days in July
Perroy, Switzerland

  • Average rainfall days in July: 18.8 days

The months with the highest number of rainy days are May and June (20.4 days).
The month with the least rainy days is October (11.5 days).

Average snowfall in July
Perroy, Switzerland

  • Average snowfall in July: 0mm

The month with the highest snowfall is December (98mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in July
Perroy, Switzerland

  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (6.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Perroy, Switzerland

  • Average daylight in July: 15h and 24min

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 42min).

  • Average sunshine in July: 10h and 42min

The months with the most sunshine are July and August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

Average sunshine days in July
Perroy, Switzerland

  • Average sunshine days in July: 8.4 days

The month with the most sunshine days is October (17.4 days).
The month with the least sunshine days is June (7.3 days).

Average UV index in July
Perroy, Switzerland

  • Average UV index in July: 5

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in July
Perroy, Switzerland

  • Average cloud cover in July: 31

The months with the most cloud cover are January and December (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in July
Perroy, Switzerland

  • Average visibility in July: 9km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).