September weather forecast
Rümikon, Switzerland

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Weather in September

September, the first month of the autumn in Rümikon, is still a comfortable month, with an average temperature fluctuating between 19.9°C (67.8°F) and 8.4°C (47.1°F).

Temperature

In Rümikon, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's warm 24.4°C (75.9°F) to an enjoyable 19.9°C (67.8°F). Throughout September, Rümikon witnesses a nighttime temperature average of 8.4°C (47.1°F).

Humidity

The average relative humidity in September in Rümikon is 80%.

Rainfall

The months with the least rainfall are April and September Rain falls for 12.5 days and accumulates 38mm (1.5") of rain.

Snowfall

June through September are months without snowfall in Rümikon.

Daylight

In September, the average length of the day in Rümikon is 12h and 34min.
On the first day of the month, sunrise is at 06:45 and sunset at 20:06. On the last day of September, in Rümikon, sunrise is at 07:24 and sunset at 19:07 CEST.

Sunshine

In September, the average sunshine in Rümikon is 8.9h.

UV index

In Rümikon, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 4 in September translates into this advice:
Guard yourself - An obligation to protect skin and eyes from harm exists. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
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Frequently asked questions

What is the average September temperature in Rümikon?

The high-temperature, in September, in Rümikon, is 19.9°C (67.8°F), while the low-temperature averages to 8.4°C (47.1°F).

What is the average humidity in September in Rümikon?

In September, the average relative humidity in Rümikon, Switzerland, is 80%.

What is the driest month in Rümikon?

April and September are months with the least rain in Rümikon when the rain falls for 12.5 days and typically aggregates up to 38mm (1.5") of rain.

How much does it rain in Rümikon in September?

In Rümikon, Switzerland, in September, during 12.5 rainfall days, 38mm (1.5") of precipitation is typically accumulated.

When it does not snow in Rümikon?

In Rümikon, Switzerland, snow does not fall in June through September.

Does it snow in Rümikon in September?

In Rümikon, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Rümikon have in September?

In September, the average day length is 12h and 34min.

When is the sunrise / sunset in September in Rümikon?

On the first day of September in Rümikon, sunrise is at 06:45 and sunset at 20:06. On the last day of the month, sunrise is at 07:24 and sunset at 19:07 CEST.

How long on average sun shines in September in Rümikon?

The average sunshine duration in September in Rümikon is 8.9h.

What is the UV index intensity in September in Rümikon?

In September, the average daily maximum UV index in Rümikon is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average humidity
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
Rümikon, Switzerland

Average temperature in September - Rümikon, Switzerland
  • Average high temperature in September: 19.9°C

The warmest months (with the highest average high temperature) are July and August (24.4°C).
The month with the lowest average high temperature is January (3.3°C).

  • Average low temperature in September: 8.4°C

The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is January (-3.1°C).

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Average pressure in September
Rümikon, Switzerland

Average pressure in September - Rümikon, Switzerland
  • Average pressure in September: 1018.7mbar

The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).

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Average wind speed in September
Rümikon, Switzerland

Average wind speed in September - Rümikon, Switzerland
  • Average wind speed in September: 6.3km/h

The windiest month (with the highest average wind speed) is March (8.7km/h).
The calmest month (with the lowest average wind speed) is August (6km/h).

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Average humidity in September
Rümikon, Switzerland

Average humidity in September - Rümikon, Switzerland
  • Average humidity in September: 80%

The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and July (76%).

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Average rainfall in September
Rümikon, Switzerland

Average rainfall in September - Rümikon, Switzerland
  • Average rainfall in September: 38mm

The wettest month (with the highest rainfall) is August (82mm).
The driest months (with the least rainfall) are April and September (38mm).

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Average rainfall days in September
Rümikon, Switzerland

Average rainfall days in September - Rümikon, Switzerland
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (7.8 days).

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Average snowfall in September
Rümikon, Switzerland

Average snowfall in September - Rümikon, Switzerland
  • Average snowfall in September: 0mm

The month with the highest snowfall is December (232mm).
The months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in September
Rümikon, Switzerland

Average snowfall days in September - Rümikon, Switzerland
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Rümikon, Switzerland

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

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

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Average sunshine days in September
Rümikon, Switzerland

Average sunshine days in September - Rümikon, Switzerland
  • Average sunshine days in September: 15 days

The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is June (11 days).

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Average UV index in September
Rümikon, Switzerland

Average UV index in September - Rümikon, Switzerland
  • Average UV index in September: 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, November and December (UV index 2).

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Average cloud cover in September
Rümikon, Switzerland

Average cloud cover in September - Rümikon, Switzerland
  • Average cloud cover in September: 36

The months with the most cloud cover are January and February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in September
Rümikon, Switzerland

Average visibility in September - Rümikon, Switzerland
  • Average visibility in September: 8km

The months with the highest visibility are April, July and August (9km).
The months with the lowest visibility are January and February (7km).

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Rümikon, Switzerland

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