September weather forecastRealp, Switzerland
September
Weather in September
September, the first month of the autumn in Realp, is also a fresh month, with an average temperature varying between 12.5°C (54.5°F) and 3.5°C (38.3°F).Temperature
The commencement of September indicates a gentle shift in the average high-temperature, receding from August's comfortable 16.3°C (61.3°F) to a cool 12.5°C (54.5°F). During the September nights, an average temperature of 3.5°C (38.3°F) is observed in Realp.Humidity
In Realp, the average relative humidity in September is 84%.Rainfall
In Realp, in September, it is raining for 19.4 days, with typically 81mm (3.19") of accumulated precipitation. Throughout the year, in Realp, there are 173.4 rainfall days, and 1380mm (54.33") of precipitation is accumulated.Snowfall
Months with snowfall in Realp are January through June, August through December. In Realp, during September, snow falls for 1.6 days and regularly aggregates up to 26mm (1.02") of snow. Throughout the year, there are 125.9 snowfall days, and 4354mm (171.42") of snow is accumulated.Daylight
In September, the average length of the day is 12h and 33min.On the first day of September in Realp, sunrise is at 06:46 and sunset at 20:05. On the last day of the month, sunrise is at 07:23 and sunset at 19:07 CEST.
Sunshine
The average sunshine in September in Realp is 8.3h.UV index
In September, the average daily maximum UV index in Realp is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 2 during September translates into the following directions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Realp, Switzerland
- Average high temperature in September: 12.5°C
The warmest month (with the highest average high temperature) is July (16.6°C).
The month with the lowest average high temperature is January (-3°C).
- Average low temperature in September: 3.5°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 (-11.4°C).
Average pressure in September
Realp, Switzerland
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Realp, Switzerland
- Average wind speed in September: 6.6km/h
The windiest month (with the highest average wind speed) is December (8.9km/h).
The calmest month (with the lowest average wind speed) is August (6.1km/h).
Average humidity in September
Realp, Switzerland
- Average humidity in September: 84%
The month with the highest relative humidity is March (93%).
The months with the lowest relative humidity are July and August (82%).
Average rainfall in September
Realp, Switzerland
- Average rainfall in September: 81mm
The wettest month (with the highest rainfall) is August (180mm).
The driest month (with the least rainfall) is February (65mm).
Average rainfall days in September
Realp, Switzerland
- Average rainfall days in September: 19.4 days
The months with the highest number of rainy days are July and August (25.5 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in September
Realp, Switzerland
- Average snowfall in September: 26mm
The month with the highest snowfall is December (787mm).
The month with the least snowfall is July (0mm).
Average snowfall days in September
Realp, Switzerland
- Average snowfall days in September: 1.6 days
The month with the highest number of snowfall days is March (21 days).
The month with the least snowfall days is July (0 days).
Average daylight in September /
Average sunshine in September
Realp, Switzerland
- Average daylight in September: 12h and 30min
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 18min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are January and December (Average sunshine: 4h and 30min).
Average sunshine days in September
Realp, Switzerland
- Average sunshine days in September: 8.5 days
The month with the most sunshine days is October (13.1 days).
The month with the least sunshine days is August (4 days).
Average UV index in September
Realp, Switzerland
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, February, April and November (UV index 1).
Average cloud cover in September
Realp, Switzerland
- Average cloud cover in September: 47
The months with the most cloud cover are February, March, April and May (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 44).
Average visibility in September
Realp, Switzerland
- Average visibility in September: 7km
The months with the highest visibility are June, July and August (8km).
The month with the lowest visibility is January (5km).
