September weather forecastKootwijk, Netherlands
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Kootwijk, Netherlands, with an average temperature fluctuating between 18.8°C (65.8°F) and 10.9°C (51.6°F).Temperature
The commencement of September indicates a gentle shift in the average high-temperature, receding from August's pleasant 22.3°C (72.1°F) to a refreshing 18.8°C (65.8°F). Nighttime temperature in Kootwijk dips to a mean of 10.9°C (51.6°F) during September.Humidity
The average relative humidity in September is 82%.Rainfall
In September, the rain falls for 16.3 days. Throughout September, 40mm (1.57") of precipitation is accumulated. In Kootwijk, during the entire year, the rain falls for 200.7 days and collects up to 547mm (21.54") of precipitation.Snowfall
In Kootwijk, snow does not fall in April through November.Daylight
The average length of the day in September in Kootwijk is 12h and 39min.On the first day of September in Kootwijk, sunrise is at 06:49 and sunset at 20:24. On the last day of the month, sunrise is at 07:37 and sunset at 19:16 CEST.
Sunshine
In Kootwijk, the average sunshine in September is 7.3h.UV index
In Kootwijk, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kootwijk, Netherlands
- Average high temperature in September: 18.8°C
The warmest month (with the highest average high temperature) is August (22.3°C).
The month with the lowest average high temperature is January (4.5°C).
- Average low temperature in September: 10.9°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (0.7°C).
Average pressure in September
Kootwijk, Netherlands
- Average pressure in September: 1016.9mbar
The month with the highest atmospheric pressure is September (1016.9mbar).
The month with the lowest atmospheric pressure is November (1011.8mbar).
Average wind speed in September
Kootwijk, Netherlands
- Average wind speed in September: 12.1km/h
The windiest month (with the highest average wind speed) is December (18km/h).
The calmest months (with the lowest average wind speed) are July and August (11.8km/h).
Average humidity in September
Kootwijk, Netherlands
- Average humidity in September: 82%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Kootwijk, Netherlands
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is July (59mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in September
Kootwijk, Netherlands
- Average rainfall days in September: 16.3 days
The month with the highest number of rainy days is July (21.6 days).
The month with the least rainy days is April (13.9 days).
Average snowfall in September
Kootwijk, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is December (28mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Kootwijk, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.6 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
Kootwijk, Netherlands
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in September: 7h and 18min
The months with the most sunshine are July and August (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).
Average sunshine days in September
Kootwijk, Netherlands
- Average sunshine days in September: 10.4 days
The month with the most sunshine days is April (13.9 days).
The month with the least sunshine days is July (7.5 days).
Average UV index in September
Kootwijk, Netherlands
- Average UV index in September: 4
The month with the highest UV index is June (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Kootwijk, Netherlands
- Average cloud cover in September: 46
The month with the most cloud cover is December (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 42).
Average visibility in September
Kootwijk, Netherlands
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (9km).
The month with the lowest visibility is September (8km).
