September weather forecastNorderney, Germany

September

Weather in September

The first month of the autumn, September, is still a refreshing month in Norderney, Germany, with temperature in the range of an average high of 18.3°C (64.9°F) and an average low of 11.3°C (52.3°F).

Temperature

The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from an agreeable 21.8°C (71.2°F) in August to a comfortable 18.3°C (64.9°F). September nights experience a consistent temperature drop to a fresh 11.3°C (52.3°F).

Humidity

The average relative humidity in September is 82%.

Rainfall

In Norderney, during September, the rain falls for 15.5 days and regularly aggregates up to 34mm (1.34") of precipitation. Throughout the year, in Norderney, there are 205.2 rainfall days, and 574mm (22.6") of precipitation is accumulated.

Snowfall

In Norderney, snow does not fall in May through October.

Sea temperature

In September, the average sea temperature is 17.7°C (63.9°F).
Note: In 17.7°C (63.9°F), swimming is not an enjoyable activity for most. The challenge of managing one's breathing increases as the temperature goes under 21°C (69.8°F).

Daylight

In Norderney, Germany, the average length of the day in September is 12h and 41min.
On the first day of September, sunrise is at 06:41 and sunset at 20:21. On the last day of the month, sunrise is at 07:32 and sunset at 19:10 CEST.

Sunshine

The average sunshine in September is 6.9h.

UV index

The average daily maximum UV index in September in Norderney, Germany, is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the maximum UV index of 4 suggests this advice:
Adopt protective measures - Suggestions to resist sunburn are offered. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.

Frequently asked questions

The average high-temperature and low-temperature during September are 18.3°C (64.9°F) and 11.3°C (52.3°F) respectively.

The average relative humidity in September is 82%.

In Norderney, Germany, during September, the rain falls for 15.5 days and regularly aggregates up to 34mm (1.34") of precipitation.

May through October are months without snowfall in Norderney.

In Norderney, Germany, in September, the average water temperature is 17.7°C (63.9°F). For swimming, a surface water temperature of 17.7°C (63.9°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

The average day length in September in Norderney is 12h and 41min.

In September, on the first day of the month, sunrise is at 06:41 and sunset at 20:21. On the last day of the month, in Norderney, sunrise is at 07:32 and sunset at 19:10 CEST.

In Norderney, the average sunshine duration in September is 6.9h.

In Norderney, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
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
Norderney, Germany

  • Average high temperature in September: 18.3°C

The warmest month (with the highest average high temperature) is August (21.8°C).
The month with the lowest average high temperature is January (4.1°C).

  • Average low temperature in September: 11.3°C

The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is February (0.5°C).

Average pressure in September
Norderney, Germany

  • Average pressure in September: 1016.3mbar

The months with the highest atmospheric pressure are May and September (1016.3mbar).
The month with the lowest atmospheric pressure is November (1011.1mbar).

Average wind speed in September
Norderney, Germany

  • Average wind speed in September: 14.8km/h

The windiest month (with the highest average wind speed) is December (21km/h).
The calmest month (with the lowest average wind speed) is August (13.9km/h).

Average humidity in September
Norderney, Germany

  • Average humidity in September: 82%

The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are April and August (79%).

Average rainfall in September
Norderney, Germany

  • Average rainfall in September: 34mm

The wettest month (with the highest rainfall) is June (60mm).
The driest month (with the least rainfall) is April (29mm).

Average rainfall days in September
Norderney, Germany

  • Average rainfall days in September: 15.5 days

The month with the highest number of rainy days is December (19.7 days).
The month with the least rainy days is February (13.8 days).

Average snowfall in September
Norderney, Germany

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (44mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in September
Norderney, Germany

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in September
Norderney, Germany

  • Average sea temperature in September: 17.7°C

The best month for swimming (with the highest average sea temperature) is August (18.1°C).
The coldest months (with the lowest average sea temperature) are January, February and March (5.1°C).

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

  • Average daylight in September: 12h and 42min

The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 30min).

  • Average sunshine in September: 6h and 54min

The month with the most sunshine is August (Average sunshine: 8h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).

Average sunshine days in September
Norderney, Germany

  • Average sunshine days in September: 10.5 days

The month with the most sunshine days is April (12.8 days).
The month with the least sunshine days is December (6.1 days).

Average UV index in September
Norderney, 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
Norderney, Germany

  • Average cloud cover in September: 50

The month with the most cloud cover is December (Cloud cover 71).
The month with the least cloud cover is April (Cloud cover 43).

Average visibility in September
Norderney, Germany

  • Average visibility in September: 9km

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