Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Spiekeroog's weather in September indicates an average high-temperature of a still enjoyable 17.1°C (62.8°F), nearly consistent with the 19.6°C (67.3°F) of August. During the nights of September, Spiekeroog records an average temperature of 14.3°C (57.7°F), a minor drop from daytime peaks.Humidity
In Spiekeroog, the average relative humidity in September is 79%.Rainfall
In Spiekeroog, during September, the rain falls for 20.8 days and regularly aggregates up to 63mm (2.48") of precipitation. Throughout the year, there are 213.7 rainfall days, and 680mm (26.77") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Spiekeroog.Sea temperature
In Spiekeroog, in September, the average water temperature is 17.8°C (64°F).Note: In water of 17.8°C (64°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 Spiekeroog, the average length of the day in September is 12h and 41min.On the first day of the month, sunrise is at 06:38 and sunset at 20:19. On the last day of September, sunrise is at 07:30 and sunset at 19:07 CEST.
Sunshine
In Spiekeroog, the average sunshine in September is 7.5h.UV index
In Spiekeroog, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Exercise prevention - Protecting skin and eyes from harm is required. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Frequently asked questions
What is the usual temperature for Spiekeroog in September?
What is the average humidity in September in Spiekeroog?
How much does it rain in Spiekeroog in September?
When it does not snow in Spiekeroog?
How cold is the water in September in Spiekeroog?
How many hours of daylight does Spiekeroog have in September?
When is the sunrise / sunset in September in Spiekeroog?
How long on average sun shines in September in Spiekeroog?
How high is the UV index in September in Spiekeroog?
Average temperature in September
Spiekeroog, Germany
- Average high temperature in September: 17.1°C
The warmest month (with the highest average high temperature) is August (19.6°C).
The month with the lowest average high temperature is February (4.4°C).
- Average low temperature in September: 14.3°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 (2.2°C).
Average pressure in September
Spiekeroog, Germany
- Average pressure in September: 1016mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1011mbar).
Average wind speed in September
Spiekeroog, Germany
- Average wind speed in September: 24km/h
The windiest month (with the highest average wind speed) is December (31.4km/h).
The calmest month (with the lowest average wind speed) is July (20.8km/h).
Average humidity in September
Spiekeroog, Germany
- Average humidity in September: 79%
The months with the highest relative humidity are January and December (85%).
The month with the lowest relative humidity is August (78%).
Average rainfall in September
Spiekeroog, Germany
- Average rainfall in September: 63mm
The wettest month (with the highest rainfall) is August (83mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in September
Spiekeroog, Germany
- Average rainfall days in September: 20.8 days
The month with the highest number of rainy days is August (21.3 days).
The month with the least rainy days is April (13.3 days).
Average snowfall in September
Spiekeroog, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is February (24mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Spiekeroog, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Spiekeroog, Germany
- Average sea temperature in September: 17.8°C
The best month for swimming (with the highest average sea temperature) is August (18.3°C).
The coldest months (with the lowest average sea temperature) are January and February (4.6°C).
Average daylight in September /
Average sunshine in September
Spiekeroog, Germany
- Average daylight in September: 12h and 4min
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: 7h and 3min
The month with the most sunshine is June (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in September
Spiekeroog, Germany
- Average sunshine days in September: 6.7 days
The month with the most sunshine days is April (14.3 days).
The month with the least sunshine days is December (5.5 days).
Average UV index in September
Spiekeroog, Germany
- Average UV index in September: 4
The months with the highest UV index are 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
Spiekeroog, Germany
- Average cloud cover in September: 47
The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is April (Cloud cover 39).
Average visibility in September
Spiekeroog, Germany
- Average visibility in September: 10km
The months with the highest visibility are March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, November and December (9km).
Spiekeroog, Germany
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