September weather forecastSonnega, Netherlands
September
Weather in September
September, the first month of the autumn in Sonnega, is still a comfortable month, with an average temperature varying between 18.1°C (64.6°F) and 11.4°C (52.5°F).Temperature
September signals a slight drop in average high-temperature, sliding from August's pleasant 21.5°C (70.7°F) to a comfortable 18.1°C (64.6°F). Throughout the nights in September, Sonnega experiences an average low-temperature of 11.4°C (52.5°F).Humidity
In September, the average relative humidity is 82%.Rainfall
In Sonnega, in September, it is raining for 18.2 days, with typically 47mm (1.85") of accumulated precipitation. In Sonnega, during the entire year, the rain falls for 189 days and collects up to 503mm (19.8") of precipitation.Snowfall
May through October are months without snowfall in Sonnega.Daylight
In Sonnega, the average length of the day in September is 12h and 40min.On the first day of September in Sonnega, sunrise is at 06:47 and sunset at 20:24. On the last day of the month, sunrise is at 07:36 and sunset at 19:15 CEST.
Sunshine
In September, the average sunshine in Sonnega is 7h.UV index
In Sonnega, Netherlands, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The daily maximum UV index of 4 in September interprets into the following advice:
Take necessary precautions - Suggestions to elude sunburn are provided. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sonnega, Netherlands
- Average high temperature in September: 18.1°C
The warmest month (with the highest average high temperature) is August (21.5°C).
The month with the lowest average high temperature is January (4.9°C).
- Average low temperature in September: 11.4°C
The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is February (1°C).
Average pressure in September
Sonnega, Netherlands
- Average pressure in September: 1016.4mbar
The month with the highest atmospheric pressure is May (1016.5mbar).
The month with the lowest atmospheric pressure is November (1011mbar).
Average wind speed in September
Sonnega, Netherlands
- Average wind speed in September: 13.7km/h
The windiest month (with the highest average wind speed) is December (20.4km/h).
The calmest month (with the lowest average wind speed) is August (13.3km/h).
Average humidity in September
Sonnega, Netherlands
- Average humidity in September: 82%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Sonnega, Netherlands
- Average rainfall in September: 47mm
The wettest month (with the highest rainfall) is August (59mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days in September
Sonnega, Netherlands
- Average rainfall days in September: 18.2 days
The month with the highest number of rainy days is August (20.2 days).
The months with the least rainy days are February and April (11.4 days).
Average snowfall in September
Sonnega, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is January (17mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Sonnega, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Sonnega, Netherlands
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in September: 7h and 0min
The month with the most sunshine is June (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in September
Sonnega, Netherlands
- Average sunshine days in September: 9.1 days
The month with the most sunshine days is April (16.8 days).
The month with the least sunshine days is August (8 days).
Average UV index in September
Sonnega, Netherlands
- 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).
Average cloud cover in September
Sonnega, Netherlands
- Average cloud cover in September: 48
The month with the most cloud cover is December (Cloud cover 69).
The month with the least cloud cover is April (Cloud cover 42).
Average visibility in September
Sonnega, Netherlands
- Average visibility in September: 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).
