September weather forecastHellerup, Denmark

September

Weather in September

September, the first month of the autumn in Hellerup, is still a refreshing month, with an average temperature ranging between min 13.3°C (55.9°F) and max 16.8°C (62.2°F).

Temperature

As September begins, there is a minor decrease in the average high-temperature, softly falling from a pleasant 20.3°C (68.5°F) in August to a refreshing 16.8°C (62.2°F). Throughout the nights in September, Hellerup notes an average low of 13.3°C (55.9°F), a small dip from the daytime peak.

Humidity

In September, the average relative humidity is 77%.

Rainfall

In Hellerup, Denmark, during September, the rain falls for 15 days and regularly aggregates up to 32mm (1.26") of precipitation. In Hellerup, during the entire year, the rain falls for 163.2 days and collects up to 348mm (13.7") of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In September, the average length of the day in Hellerup is 12h and 44min.
On the first day of the month, sunrise is at 06:15 and sunset at 20:03. On the last day of September, in Hellerup, sunrise is at 07:11 and sunset at 18:47 CEST.

Sunshine

In Hellerup, the average sunshine in September is 7.7h.

UV index

In Hellerup, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum UV index of 4 in September translates into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.

Frequently asked questions

The average high-temperature, in September, in Hellerup, is 16.8°C (62.2°F), while the average low-temperature is 13.3°C (55.9°F).

The average relative humidity in September in Hellerup is 77%.

In Hellerup, Denmark, in September, during 15 rainfall days, 32mm (1.26") of precipitation is typically accumulated.

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

In Hellerup, Denmark, the average day length in September is 12h and 44min.

In September, on the first day of the month, sunrise is at 06:15 and sunset at 20:03. On the last day of the month, in Hellerup, sunrise is at 07:11 and sunset at 18:47 CEST.

In September, the average sunshine duration is 7.7h.

The average daily maximum UV index in September in Hellerup is 4. A UV Index of 3 to 5 symbolizes a medium health risk 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
Hellerup, Denmark

  • Average high temperature in September: 16.8°C

The warmest month (with the highest average high temperature) is August (20.3°C).
The month with the lowest average high temperature is February (2.7°C).

  • Average low temperature in September: 13.3°C

The month with the highest average low temperature is August (15.8°C).
The coldest month (with the lowest average low temperature) is February (0.1°C).

Average pressure in September
Hellerup, Denmark

  • Average pressure in September: 1015.2mbar

The month with the highest atmospheric pressure is April (1015.6mbar).
The month with the lowest atmospheric pressure is December (1011.1mbar).

Average wind speed in September
Hellerup, Denmark

  • Average wind speed in September: 18.4km/h

The windiest month (with the highest average wind speed) is December (22.1km/h).
The calmest month (with the lowest average wind speed) is July (15.4km/h).

Average humidity in September
Hellerup, Denmark

  • Average humidity in September: 77%

The months with the highest relative humidity are January and December (86%).
The months with the lowest relative humidity are April, May and June (75%).

Average rainfall in September
Hellerup, Denmark

  • Average rainfall in September: 32mm

The wettest month (with the highest rainfall) is August (50mm).
The driest month (with the least rainfall) is April (13mm).

Average rainfall days in September
Hellerup, Denmark

  • Average rainfall days in September: 15 days

The month with the highest number of rainy days is August (17.3 days).
The month with the least rainy days is February (9.2 days).

Average snowfall in September
Hellerup, Denmark

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (34mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in September
Hellerup, Denmark

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (8.1 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
Hellerup, Denmark

  • Average daylight in September: 12h and 42min

The month with the longest days is June (Average daylight: 17h and 24min).
The month with the shortest days is December (Average daylight: 7h and 6min).

  • Average sunshine in September: 7h and 42min

The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).

Average sunshine days in September
Hellerup, Denmark

  • Average sunshine days in September: 11 days

The month with the most sunshine days is April (16.5 days).
The month with the least sunshine days is December (9.1 days).

Average UV index in September
Hellerup, Denmark

  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in September
Hellerup, Denmark

  • Average cloud cover in September: 46

The month with the most cloud cover is December (Cloud cover 70).
The months with the least cloud cover are June and August (Cloud cover 38).

Average visibility in September
Hellerup, Denmark

  • Average visibility in September: 10km

The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).