September weather forecastAlderslyst, Denmark

September

Weather in September

September, the first month of the autumn in Alderslyst, is still a comfortable month, with an average temperature fluctuating between 16.9°C (62.4°F) and 10.2°C (50.4°F).

Temperature

A subtle shift in Alderslyst's weather is observed as August turns into September, with the average high temperature reducing from a pleasant 20.7°C (69.3°F) to a comfortable 16.9°C (62.4°F). The average low-temperature of 10.2°C (50.4°F) is witnessed during September.

Humidity

The average relative humidity in September in Alderslyst is 83%.

Rainfall

In Alderslyst, in September, during 8.7 rainfall days, 20mm (0.79") of precipitation is typically accumulated. In Alderslyst, Denmark, during the entire year, the rain falls for 138 days and collects up to 260mm (10.24") of precipitation.

Snowfall

May through October are months without snowfall in Alderslyst.

Daylight

The average length of the day in September in Alderslyst is 12h and 45min.
On the first day of September, sunrise is at 06:26 and sunset at 20:16. On the last day of the month, sunrise is at 07:23 and sunset at 18:59 CEST.

Sunshine

In Alderslyst, Denmark, the average sunshine in September is 6.8h.

UV index

The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, the UV index of 3 transforms into the following advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.

Frequently asked questions

The high-temperature, in September, in Alderslyst, is 16.9°C (62.4°F), while the low-temperature averages to 10.2°C (50.4°F).

In September, the average relative humidity in Alderslyst, Denmark, is 83%.

In Alderslyst, Denmark, during September, the rain falls for 8.7 days and regularly aggregates up to 20mm (0.79") of precipitation.

In Alderslyst, Denmark, snow does not fall in May through October.

The average day length in September is 12h and 45min.

In September, on the first day of the month, sunrise is at 06:26 and sunset at 20:16. On the last day of the month, in Alderslyst, sunrise is at 07:23 and sunset at 18:59 CEST.

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

In September, the average daily maximum UV index in Alderslyst is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to 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
Alderslyst, Denmark

  • Average high temperature in September: 16.9°C

The warmest month (with the highest average high temperature) is July (20.9°C).
The month with the lowest average high temperature is January (2.7°C).

  • Average low temperature in September: 10.2°C

The month with the highest average low temperature is August (12.7°C).
The coldest month (with the lowest average low temperature) is February (-0.5°C).

Average pressure in September
Alderslyst, Denmark

  • Average pressure in September: 1014.5mbar

The months with the highest atmospheric pressure are April and May (1015.4mbar).
The month with the lowest atmospheric pressure is December (1010mbar).

Average wind speed in September
Alderslyst, Denmark

  • Average wind speed in September: 13.7km/h

The windiest month (with the highest average wind speed) is December (16.8km/h).
The calmest month (with the lowest average wind speed) is August (12.9km/h).

Average humidity in September
Alderslyst, Denmark

  • Average humidity in September: 83%

The months with the highest relative humidity are November and December (90%).
The months with the lowest relative humidity are April and May (74%).

Average rainfall in September
Alderslyst, Denmark

  • Average rainfall in September: 20mm

The wettest month (with the highest rainfall) is July (39mm).
The driest month (with the least rainfall) is April (15mm).

Average rainfall days in September
Alderslyst, Denmark

  • Average rainfall days in September: 8.7 days

The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is February (8.4 days).

Average snowfall in September
Alderslyst, Denmark

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (23mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in September
Alderslyst, Denmark

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (7.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Alderslyst, Denmark

  • Average daylight in September: 12h and 42min

The month with the longest days is June (Average daylight: 17h and 36min).
The month with the shortest days is December (Average daylight: 7h and 0min).

  • Average sunshine in September: 6h and 48min

The month with the most sunshine is June (Average sunshine: 9h and 42min).
The months with the least sunshine are January and February (Average sunshine: 3h and 6min).

Average sunshine days in September
Alderslyst, Denmark

  • Average sunshine days in September: 16.9 days

The month with the most sunshine days is September (16.9 days).
The month with the least sunshine days is February (12.1 days).

Average UV index in September
Alderslyst, Denmark

  • Average UV index in September: 3

The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in September
Alderslyst, Denmark

  • Average cloud cover in September: 53

The month with the most cloud cover is February (Cloud cover 70).
The month with the least cloud cover is April (Cloud cover 46).

Average visibility in September
Alderslyst, Denmark

  • Average visibility in September: 9km

The months with the highest visibility are February, April, May, June, August, September and December (9km).
The months with the lowest visibility are January, March, July, October and November (8km).