September weather forecastWesterland, Germany

September

Weather in September

September, the first month of the autumn in Westerland, is still a refreshing month, with temperature in the range of an average low of 14.4°C (57.9°F) and an average high of 16.4°C (61.5°F).

Temperature

Stepping into September, Westerland records an average high-temperature of a still refreshing 16.4°C (61.5°F), almost consistent with August. Maintaining close parity with daytime warmth, the average nocturnal temperature in Westerland during September stays at a still refreshing 14.4°C (57.9°F).

Humidity

In September, the average relative humidity is 79%.

Rainfall

In Westerland, in September, during 18.5 rainfall days, 69mm (2.72") of precipitation is typically accumulated. In Westerland, Germany, during the entire year, the rain falls for 196.9 days and collects up to 600mm (23.62") of precipitation.

Snowfall

In Westerland, snow does not fall in May through November.

Sea temperature

In Westerland, in September, the average water temperature is 16°C (60.8°F).
Note: In water of 16°C (60.8°F), the majority of people do not enjoy swimming. Breathing becomes increasingly hard to manage as the temperature drops from 21°C (69.8°F) to 15°C (59°F).

Daylight

In Westerland, the average length of the day in September is 12h and 43min.
On the first day of September in Westerland, sunrise is at 06:34 and sunset at 20:18. On the last day of the month, sunrise is at 07:28 and sunset at 19:04 CEST.

Sunshine

The average sunshine in September in Westerland is 7.3h.

UV index

In Westerland, Germany, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: In September, an average UV index of 4 transforms into the following instructions:
Ensure safety - Imperative it is to shield skin and eyes from damage. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.

Frequently asked questions

In Westerland, in September, the average high-temperature is 16.4°C (61.5°F), and the average low-temperature is 14.4°C (57.9°F).

The average relative humidity in September in Westerland, Germany, is 79%.

In Westerland, Germany, during September, the rain falls for 18.5 days and regularly aggregates up to 69mm (2.72") of precipitation.

In Westerland, Germany, snow does not fall in May through November.

In Westerland, the average seawater temperature in September is 16°C (60.8°F). For most, swimming in 16°C (60.8°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

The average day length in September in Westerland, Germany, is 12h and 43min.

In September, on the first day of the month, sunrise is at 06:34 and sunset at 20:18. On the last day of the month, in Westerland, sunrise is at 07:28 and sunset at 19:04 CEST.

In September, the average sunshine duration in Westerland, Germany, is 7.3h.

In Westerland, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability 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 sea temperature
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Westerland, Germany

  • Average high temperature in September: 16.4°C

The warmest month (with the highest average high temperature) is August (18.6°C).
The month with the lowest average high temperature is February (3.7°C).

  • Average low temperature in September: 14.4°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 (1.9°C).

Average pressure in September
Westerland, Germany

  • Average pressure in September: 1015.2mbar

The month with the highest atmospheric pressure is May (1015.8mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).

Average wind speed in September
Westerland, Germany

  • Average wind speed in September: 26.8km/h

The windiest month (with the highest average wind speed) is December (33.6km/h).
The calmest month (with the lowest average wind speed) is July (23km/h).

Average humidity in September
Westerland, Germany

  • Average humidity in September: 79%

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is August (78%).

Average rainfall in September
Westerland, Germany

  • Average rainfall in September: 69mm

The wettest month (with the highest rainfall) is August (75mm).
The driest month (with the least rainfall) is April (22mm).

Average rainfall days in September
Westerland, Germany

  • Average rainfall days in September: 18.5 days

The month with the highest number of rainy days is October (20.5 days).
The month with the least rainy days is February (11.7 days).

Average snowfall in September
Westerland, Germany

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (21mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).

Average snowfall days in September
Westerland, Germany

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in September
Westerland, Germany

  • Average sea temperature in September: 16°C

The best month for swimming (with the highest average sea temperature) is August (18°C).
The coldest months (with the lowest average sea temperature) are February and March (4°C).

Average daylight in September /
Average sunshine in September
Westerland, Germany

  • Average daylight in September: 12h and 42min

The month with the longest days is June (Average daylight: 17h and 18min).
The month with the shortest days is December (Average daylight: 7h and 18min).

  • Average sunshine in September: 7h and 18min

The month with the most sunshine is June (Average sunshine: 9h and 54min).
The months with the least sunshine are January, February and November (Average sunshine: 3h and 36min).

Average sunshine days in September
Westerland, Germany

  • Average sunshine days in September: 8.4 days

The month with the most sunshine days is March (15.3 days).
The month with the least sunshine days is November (7.4 days).

Average UV index in September
Westerland, Germany

  • Average UV index in September: 4

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in September
Westerland, Germany

  • Average cloud cover in September: 49

The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is April (Cloud cover 40).

Average visibility in September
Westerland, Germany

  • Average visibility in September: 10km

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