September weather forecast
Surava, Switzerland

September

Weather in September

September, the first month of the autumn in Surava, is still a mild month, with an average temperature varying between 3.1°C (37.6°F) and 13.5°C (56.3°F).

Temperature

September signals a slight drop in average high-temperature, sliding from August's comfortable 17.8°C (64°F) to a still refreshing 13.5°C (56.3°F). Throughout the month of September, Surava observes an average nighttime temperature of 3.1°C (37.6°F).

Humidity

In September, the average relative humidity is 82%.

Rainfall

In Surava, in September, it is raining for 14 days, with typically 40mm (1.57") of accumulated precipitation. Throughout the year, there are 139.1 rainfall days, and 628mm (24.72") of precipitation is accumulated.

Snowfall

Months with snowfall are January through December. In September, it is snowing for 1.6 days. Throughout September, 15mm (0.59") of snow is accumulated. Throughout the year, there are 104.8 snowfall days, and 1982mm (78.03") of snow is accumulated.

Daylight

In Surava, the average length of the day in September is 12h and 33min.
On the first day of September, sunrise is at 06:42 and sunset at 20:00. On the last day of the month, sunrise is at 07:19 and sunset at 19:03 CEST.

Sunshine

In Surava, Switzerland, the average sunshine in September is 8.9h.

UV index

In Surava, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 3 during September translates into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Stay sun-safe with clothing that is both closely woven and worn loosely. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.

Frequently asked questions

What are September temperatures in Surava?
The average high-temperature and low-temperature in Surava during September are 13.5°C (56.3°F) and 3.1°C (37.6°F) respectively.
What is the average humidity in September?
In September, the average relative humidity is 82%.
How much does it rain in September?
In Surava, during September, the rain falls for 14 days and regularly aggregates up to 40mm (1.57") of precipitation.
How many days does it snow in September?
In Surava, in September, during 1.6 snowfall days, 15mm (0.59") of snow is typically accumulated.
How many hours of daylight does Surava have in September?
In Surava, the average day length in September is 12h and 33min.
When are sunrise and sunset in September?
On the first day of September in Surava, sunrise is at 06:42 and sunset at 20:00. On the last day of the month, sunrise is at 07:19 and sunset at 19:03 CEST.
How many hours of sunshine does Surava have in September?
In Surava, the average sunshine duration in September is 8.9h.
What is the UV index reading in September?
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium hazard to health 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Surava, Switzerland
Average temperature in September
Surava, Switzerland
  • Average high temperature in September: 13.5°C

The warmest month (with the highest average high temperature) is August (17.8°C).
The month with the lowest average high temperature is January (-2.3°C).

  • Average low temperature in September: 3.1°C

The months with the highest average low temperature are July and August (6.3°C).
The coldest month (with the lowest average low temperature) is February (-10.8°C).

Average pressure in September - Surava, Switzerland
Average pressure in September
Surava, Switzerland
  • Average pressure in September: 1018.2mbar

The month with the highest atmospheric pressure is December (1020.7mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).

Average wind speed in September - Surava, Switzerland
Average wind speed in September
Surava, Switzerland
  • Average wind speed in September: 6.8km/h

The windiest months (with the highest average wind speed) are February and November (8.3km/h).
The calmest month (with the lowest average wind speed) is August (6.5km/h).

Average humidity in September - Surava, Switzerland
Average humidity in September
Surava, Switzerland
  • Average humidity in September: 82%

The month with the highest relative humidity is March (91%).
The month with the lowest relative humidity is July (79%).

Average rainfall in September - Surava, Switzerland
Average rainfall in September
Surava, Switzerland
  • Average rainfall in September: 40mm

The wettest month (with the highest rainfall) is August (88mm).
The driest month (with the least rainfall) is February (35mm).

Average rainfall days in September - Surava, Switzerland
Average rainfall days in September
Surava, Switzerland
  • Average rainfall days in September: 14 days

The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is February (3.8 days).

Average snowfall in September - Surava, Switzerland
Average snowfall in September
Surava, Switzerland
  • Average snowfall in September: 15mm

The month with the highest snowfall is December (403mm).
The month with the least snowfall is August (1mm).

Average snowfall days in September - Surava, Switzerland
Average snowfall days in September
Surava, Switzerland
  • Average snowfall days in September: 1.6 days

The month with the highest number of snowfall days is January (18.3 days).
The month with the least snowfall days is July (0.1 days).

Average daylight in September / Average sunshine in September - Surava, Switzerland
Average daylight in September /
Average sunshine in September
Surava, Switzerland
  • Average daylight in September: 12h and 4min

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 September: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).

Average sunshine days in September - Surava, Switzerland
Average sunshine days in September
Surava, Switzerland
  • Average sunshine days in September: 12.1 days

The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is May (8.4 days).

Average UV index in September - Surava, Switzerland
Average UV index in September
Surava, Switzerland
  • Average UV index in September: 3

The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, November and December (UV index 1).

Average cloud cover in September - Surava, Switzerland
Average cloud cover in September
Surava, Switzerland
  • Average cloud cover in September: 42

The month with the most cloud cover is March (Cloud cover 51).
The months with the least cloud cover are July, August and October (Cloud cover 40).

Average visibility in September - Surava, Switzerland
Average visibility in September
Surava, Switzerland
  • Average visibility in September: 7km

The months with the highest visibility are June, July, August and October (8km).
The months with the lowest visibility are January, February and March (6km).

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