September weather forecastRisdam, Netherlands
September
Weather in September
September, the first month of the autumn in Risdam, is still a refreshing month, with an average temperature ranging between min 13.4°C (56.1°F) and max 17.7°C (63.9°F).Temperature
Risdam's entry into September measures an average high-temperature of an enjoyable 17.7°C (63.9°F), closely parallel to the preceding month. September nights in Risdam, Netherlands, witness a slight temperature decrease, averaging at a moderate 13.4°C (56.1°F).Humidity
In September, the average relative humidity in Risdam is 79%.Rainfall
In Risdam, during September, the rain falls for 13.7 days and regularly aggregates up to 26mm (1.02") of precipitation. In Risdam, during the entire year, the rain falls for 160.4 days and collects up to 266mm (10.47") of precipitation.Snowfall
April through November are months without snowfall in Risdam.Daylight
In September, the average length of the day in Risdam is 12h and 40min.On the first day of the month, sunrise is at 06:51 and sunset at 20:27. On the last day of September, in Risdam, sunrise is at 07:40 and sunset at 19:18 CEST.
Sunshine
In Risdam, the average sunshine in September is 7.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Risdam, Netherlands
- Average high temperature in September: 17.7°C
The warmest month (with the highest average high temperature) is August (20.6°C).
The month with the lowest average high temperature is January (5.5°C).
- Average low temperature in September: 13.4°C
The month with the highest average low temperature is August (15.6°C).
The coldest month (with the lowest average low temperature) is February (2.5°C).
Average pressure in September
Risdam, Netherlands
- Average pressure in September: 1016.5mbar
The months with the highest atmospheric pressure are May and September (1016.5mbar).
The month with the lowest atmospheric pressure is November (1011mbar).
Average wind speed in September
Risdam, Netherlands
- Average wind speed in September: 17.1km/h
The windiest month (with the highest average wind speed) is December (24.8km/h).
The calmest month (with the lowest average wind speed) is July (15.6km/h).
Average humidity in September
Risdam, Netherlands
- Average humidity in September: 79%
The months with the highest relative humidity are January and December (84%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Risdam, Netherlands
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is August (37mm).
The driest month (with the least rainfall) is April (8mm).
Average rainfall days in September
Risdam, Netherlands
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is August (16.7 days).
The month with the least rainy days is April (9.1 days).
Average snowfall in September
Risdam, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is February (12mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Risdam, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4 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
Risdam, 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 12min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in September
Risdam, Netherlands
- Average sunshine days in September: 12.3 days
The month with the most sunshine days is April (18.4 days).
The month with the least sunshine days is December (9.7 days).
Average UV index in September
Risdam, Netherlands
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Risdam, Netherlands
- Average cloud cover in September: 45
The month with the most cloud cover is December (Cloud cover 66).
The months with the least cloud cover are April and August (Cloud cover 39).
Average visibility in September
Risdam, Netherlands
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
