September weather forecastOpende, Netherlands
September
Weather in September
September, the first month of the autumn in Opende, is still a refreshing month, with an average temperature fluctuating between 11.7°C (53.1°F) and 18°C (64.4°F).Temperature
Opende's September weather features a light decline in high-temperatures, reducing from an agreeable 21.3°C (70.3°F) in August to an enjoyable 18°C (64.4°F). An average nighttime temperature of 11.7°C (53.1°F) is observed in Opende during September.Humidity
In September, the average relative humidity is 82%.Rainfall
In Opende, during September, the rain falls for 14.7 days and regularly aggregates up to 30mm (1.18") of precipitation. Throughout the year, in Opende, there are 193.8 rainfall days, and 494mm (19.45") of precipitation is accumulated.Snowfall
May through October are months without snowfall in Opende.Daylight
In Opende, the average length of the day in September is 12h and 41min.On the first day of the month, sunrise is at 06:45 and sunset at 20:24. On the last day of September, sunrise is at 07:35 and sunset at 19:14 CEST.
Sunshine
In September, the average sunshine is 7.1h.UV index
The average daily maximum UV index in September in Opende is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 4 during September translates into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Opende, Netherlands
- Average high temperature in September: 18°C
The warmest month (with the highest average high temperature) is August (21.3°C).
The month with the lowest average high temperature is January (4.8°C).
- Average low temperature in September: 11.7°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is February (1.3°C).
Average pressure in September
Opende, Netherlands
- Average pressure in September: 1016.4mbar
The months with the highest atmospheric pressure are May and September (1016.4mbar).
The month with the lowest atmospheric pressure is November (1010.9mbar).
Average wind speed in September
Opende, Netherlands
- Average wind speed in September: 15.1km/h
The windiest month (with the highest average wind speed) is December (21.7km/h).
The calmest month (with the lowest average wind speed) is July (14.3km/h).
Average humidity in September
Opende, 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 (78%).
Average rainfall in September
Opende, Netherlands
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is July (52mm).
The driest month (with the least rainfall) is April (26mm).
Average rainfall days in September
Opende, Netherlands
- Average rainfall days in September: 14.7 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is April (13.8 days).
Average snowfall in September
Opende, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is February (26mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Opende, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.8 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
Opende, Netherlands
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 7h and 6min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).
Average sunshine days in September
Opende, Netherlands
- Average sunshine days in September: 13.1 days
The month with the most sunshine days is October (14.5 days).
The month with the least sunshine days is December (8.5 days).
Average UV index in September
Opende, Netherlands
- Average UV index in September: 4
The month with the highest UV index is 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
Opende, Netherlands
- Average cloud cover in September: 47
The month with the most cloud cover is December (Cloud cover 68).
The months with the least cloud cover are April and August (Cloud cover 41).
Average visibility in September
Opende, 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).
