Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from a pleasant 22.5°C (72.5°F) to a comfortable 19.2°C (66.6°F). In Rilland, an average temperature of 11.9°C (53.4°F) is noted during September nights.Humidity
The average relative humidity in September is 79%.Rainfall
In Rilland, Netherlands, in September, during 15.5 rainfall days, 37mm (1.46") of precipitation is typically accumulated. In Rilland, during the entire year, the rain falls for 206.2 days and collects up to 588mm (23.15") of precipitation.Snowfall
In Rilland, snow does not fall in May through October.Daylight
In Rilland, the average length of the day in September is 12h and 38min.On the first day of the month, sunrise is at 06:56 and sunset at 20:29. On the last day of September, in Rilland, sunrise is at 07:43 and sunset at 19:22 CEST.
Sunshine
The average sunshine in September in Rilland is 7.4h.UV index
In September, the average daily maximum UV index in Rilland 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: In September, a daily maximum UV index of 4 leads to the following instructions:
Exercise prevention - Precautions against solar damage are endorsed. To protect against the Sun's most potent rays, avoid direct exposure around midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Rilland?
What is the average humidity in September in Rilland?
How many days does it rain in September in Rilland?
When it does not snow in Rilland?
How many hours of daylight does Rilland have in September?
What time are sunrise and sunset in September in Rilland?
How long on average sun shines in September in Rilland?
What is the UV index reading in September in Rilland?
Average temperature in September
Rilland, Netherlands
- Average high temperature in September: 19.2°C
The warmest month (with the highest average high temperature) is August (22.5°C).
The month with the lowest average high temperature is January (5.6°C).
- Average low temperature in September: 11.9°C
The month with the highest average low temperature is August (14.4°C).
The coldest months (with the lowest average low temperature) are January and February (1.9°C).
Average pressure in September
Rilland, 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 (1011.9mbar).
Average wind speed in September
Rilland, Netherlands
- Average wind speed in September: 12.9km/h
The windiest month (with the highest average wind speed) is December (18.3km/h).
The calmest months (with the lowest average wind speed) are July and August (12.7km/h).
Average humidity in September
Rilland, Netherlands
- Average humidity in September: 79%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is April (74%).
Average rainfall in September
Rilland, Netherlands
- Average rainfall in September: 37mm
The wettest month (with the highest rainfall) is December (62mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in September
Rilland, Netherlands
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is August (19.2 days).
The month with the least rainy days is April (14.6 days).
Average snowfall in September
Rilland, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is February (33mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Rilland, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.1 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
Rilland, Netherlands
- Average daylight in September: 12h and 4min
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 2min
The month with the most sunshine is June (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in September
Rilland, Netherlands
- Average sunshine days in September: 11 days
The month with the most sunshine days is April (12.4 days).
The month with the least sunshine days is December (7.5 days).
Average UV index in September
Rilland, 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
Rilland, Netherlands
- Average cloud cover in September: 44
The month with the most cloud cover is December (Cloud cover 65).
The month with the least cloud cover is April (Cloud cover 41).
Average visibility in September
Rilland, 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).
