September weather forecastDe Kooy, Netherlands

September

Weather in September

The first month of the autumn, September, is still a comfortable month in De Kooy, Netherlands, with temperature in the range of an average low of 15.1°C (59.2°F) and an average high of 17.2°C (63°F).

Temperature

De Kooy experiences a transition to a still comfortable 17.2°C (63°F) in average high-temperatures with the arrival of September, not greatly differing from August's 18.9°C (66°F). De Kooy, during the nights of September, averages a temperature close to its daytime high, at a still refreshing 15.1°C (59.2°F).

Humidity

September is the least humid month in De Kooy, with an average relative humidity of 77%.

Rainfall

In De Kooy, in September, during 16.9 rainfall days, 41mm (1.61") of precipitation is typically accumulated. In De Kooy, during the entire year, the rain falls for 186.7 days and collects up to 391mm (15.39") of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In De Kooy, the average length of the day in September is 12h and 40min.
On the first day of the month, sunrise is at 06:52 and sunset at 20:29. On the last day of September, in De Kooy, sunrise is at 07:41 and sunset at 19:19 CEST.

Sunshine

The average sunshine in September in De Kooy, Netherlands, is 6.8h.

UV index

In De Kooy, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index, 4 during September, leads to the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.

Frequently asked questions

The high-temperature, in September, in De Kooy, is 17.2°C (63°F), while the low-temperature averages to 15.1°C (59.2°F).

The least humid month is September, with an average relative humidity of 77%.

In De Kooy, Netherlands, the average relative humidity in September is 77%.

In De Kooy, in September, during 16.9 rainfall days, 41mm (1.61") of precipitation is typically accumulated.

In De Kooy, Netherlands, snow does not fall in April through October.

In De Kooy, the average day length in September is 12h and 40min.

In September, on the first day of the month, sunrise is at 06:52 and sunset at 20:29. On the last day of the month, in De Kooy, Netherlands, sunrise is at 07:41 and sunset at 19:19 CEST.

In De Kooy, the average sunshine duration in September is 6.8h.

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
De Kooy, 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 Kooy, 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 Kooy, 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 Kooy, 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 Kooy, 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 Kooy, 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 Kooy, 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 Kooy, 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 Kooy, Netherlands

  • Average daylight in September: 12h and 42min

The month with the longest days is June (Average daylight: 16h and 48min).
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 Kooy, 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 Kooy, 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 Kooy, 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 Kooy, 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).