September weather forecastRitthem, Netherlands
September
Weather in September
September, the first month of the autumn in Ritthem, is also an enjoyable month, with temperature in the range of an average low of 14.2°C (57.6°F) and an average high of 18.5°C (65.3°F).Temperature
Ritthem's September reports an average high-temperature of a comfortable 18.5°C (65.3°F), exhibiting a minor difference from August. The month of September is marked by an average minimum temperature of 14.2°C (57.6°F), slightly cooler than its daytime counterpart.Humidity
The average relative humidity in September in Ritthem is 76%.Rainfall
In Ritthem, during September, the rain falls for 13.9 days and regularly aggregates up to 28mm (1.1") of precipitation. Throughout the year, there are 171.6 rainfall days, and 383mm (15.08") of precipitation is accumulated.Snowfall
In Ritthem, snow does not fall in April through October.Daylight
In September, the average length of the day in Ritthem, Netherlands, is 12h and 38min.On the first day of September, sunrise is at 06:59 and sunset at 20:31. On the last day of the month, sunrise is at 07:45 and sunset at 19:25 CEST.
Sunshine
In September, the average sunshine in Ritthem is 7.2h.UV index
In September, the average daily maximum UV index in Ritthem, Netherlands, is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum UV index of 4 in September translates into the following recommendations:
Act with care - The need to guard against sun damage is communicated. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ritthem, Netherlands
- Average high temperature in September: 18.5°C
The warmest month (with the highest average high temperature) is August (20.8°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in September: 14.2°C
The month with the highest average low temperature is August (16.2°C).
The coldest month (with the lowest average low temperature) is February (3.3°C).
Average pressure in September
Ritthem, Netherlands
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is September (1017.2mbar).
The month with the lowest atmospheric pressure is November (1011.6mbar).
Average wind speed in September
Ritthem, Netherlands
- Average wind speed in September: 18.2km/h
The windiest month (with the highest average wind speed) is December (24.8km/h).
The calmest months (with the lowest average wind speed) are April and July (16.5km/h).
Average humidity in September
Ritthem, Netherlands
- Average humidity in September: 76%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Ritthem, Netherlands
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is August (47mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in September
Ritthem, Netherlands
- Average rainfall days in September: 13.9 days
The month with the highest number of rainy days is November (17.5 days).
The month with the least rainy days is April (10.5 days).
Average snowfall in September
Ritthem, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is January (17mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Ritthem, Netherlands
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (2.7 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
Ritthem, Netherlands
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 7h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 42min).
Average sunshine days in September
Ritthem, Netherlands
- Average sunshine days in September: 12 days
The month with the most sunshine days is April (17.1 days).
The month with the least sunshine days is November (9.6 days).
Average UV index in September
Ritthem, 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 and December (UV index 2).
Average cloud cover in September
Ritthem, Netherlands
- Average cloud cover in September: 43
The month with the most cloud cover is December (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
Ritthem, Netherlands
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January and December (9km).
