September weather forecastDe Koog, Netherlands
September
Weather in September
The first month of the autumn, September, is still a comfortable month in De Koog, Netherlands, with an average temperature ranging between min 15.1°C (59.2°F) and max 17.2°C (63°F).Temperature
The advent of September reveals an average high-temperature of a still enjoyable 17.2°C (63°F), showing minimal difference from the prior month. In De Koog, the nocturnal temperatures throughout September show a marginal dip from the daytime averages, settling at a still refreshing 15.1°C (59.2°F).Humidity
September is the least humid month, with an average relative humidity of 77%.Rainfall
In September, in De Koog, Netherlands, the rain falls for 16.9 days. Throughout September, 41mm (1.61") of precipitation is accumulated. In De Koog, during the entire year, the rain falls for 186.7 days and collects up to 391mm (15.39") of precipitation.Snowfall
In De Koog, snow does not fall in April through October.Daylight
The average length of the day in September in De Koog is 12h and 40min.On the first day of September in De Koog, Netherlands, sunrise is at 06:51 and sunset at 20:29. On the last day of the month, sunrise is at 07:41 and sunset at 19:19 CEST.
Sunshine
In De Koog, the average sunshine in September is 6.8h.UV index
In De Koog, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: A daily high UV index of 4 in September leads to these guidelines:
Make use of precautions - Suggestions to resist sunburn are communicated. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
De Koog, Netherlands
- Average high temperature in September: 17.2°C
The warmest month (with the highest average high temperature) is August (18.9°C).
The month with the lowest average high temperature is February (5.7°C).
- Average low temperature in September: 15.1°C
The month with the highest average low temperature is August (16.4°C).
The coldest month (with the lowest average low temperature) is February (3.5°C).
Average pressure in September
De Koog, Netherlands
- Average pressure in September: 1016.2mbar
The month with the highest atmospheric pressure is May (1016.5mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).
Average wind speed in September
De Koog, Netherlands
- Average wind speed in September: 24.6km/h
The windiest month (with the highest average wind speed) is December (33.9km/h).
The calmest month (with the lowest average wind speed) is July (21.3km/h).
Average humidity in September
De Koog, Netherlands
- Average humidity in September: 77%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is September (77%).
Average rainfall in September
De Koog, Netherlands
- Average rainfall in September: 41mm
The wettest month (with the highest rainfall) is October (49mm).
The driest month (with the least rainfall) is April (13mm).
Average rainfall days in September
De Koog, Netherlands
- Average rainfall days in September: 16.9 days
The month with the highest number of rainy days is December (19.7 days).
The month with the least rainy days is April (10.8 days).
Average snowfall in September
De Koog, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is January (9mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
De Koog, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
De Koog, 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: 6h and 48min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in September
De Koog, Netherlands
- Average sunshine days in September: 9.2 days
The month with the most sunshine days is May (16.6 days).
The month with the least sunshine days is November (6.5 days).
Average UV index in September
De Koog, 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
De Koog, Netherlands
- Average cloud cover in September: 47
The month with the most cloud cover is December (Cloud cover 67).
The months with the least cloud cover are April and August (Cloud cover 40).
Average visibility in September
De Koog, 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).





