September weather forecastTerherne, Netherlands
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Terherne, Netherlands, with an average temperature fluctuating between 18.1°C (64.6°F) and 11.4°C (52.5°F).Temperature
A moderate decline in average high-temperatures is noted in September, moving from a pleasant 21.5°C (70.7°F) in August to an enjoyable 18.1°C (64.6°F). In Terherne, an average temperature of 11.4°C (52.5°F) is noted during September nights.Humidity
In Terherne, the average relative humidity in September is 82%.Rainfall
In Terherne, Netherlands, in September, during 18.2 rainfall days, 47mm (1.85") of precipitation is typically accumulated. Throughout the year, there are 189 rainfall days, and 503mm (19.8") of precipitation is accumulated.Snowfall
In Terherne, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 40min.On the first day of September in Terherne, Netherlands, sunrise is at 06:47 and sunset at 20:25. On the last day of the month, sunrise is at 07:37 and sunset at 19:15 CEST.
Sunshine
The average sunshine in September in Terherne is 7h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Heed the precautions - It is counselled to guard against solar damage. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Terherne, 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
Terherne, 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
Terherne, 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
Terherne, 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
Terherne, 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
Terherne, 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
Terherne, 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
Terherne, 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
Terherne, 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 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
Terherne, 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
Terherne, 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
Terherne, 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
Terherne, 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).
