September weather forecastOtterndorf, Germany

September

Weather in September

September, the first month of the autumn in Otterndorf, is also an enjoyable month, with an average temperature varying between 17.5°C (63.5°F) and 13.1°C (55.6°F).

Temperature

September reveals a small adjustment in temperature, transitioning from an average high of a pleasant 20.6°C (69.1°F) in August to an enjoyable 17.5°C (63.5°F). Otterndorf records a negligible downturn from daytime temperatures, averaging a low of 13.1°C (55.6°F) in the month of September.

Humidity

In September, the average relative humidity is 80%.

Rainfall

In September, in Otterndorf, the rain falls for 17.9 days. Throughout September, 44mm (1.73") of precipitation is accumulated. In Otterndorf, during the entire year, the rain falls for 193 days and collects up to 477mm (18.78") of precipitation.

Snowfall

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

Daylight

In Otterndorf, the average length of the day in September is 12h and 41min.
On the first day of September, sunrise is at 06:34 and sunset at 20:14. On the last day of the month, sunrise is at 07:25 and sunset at 19:03 CEST.

Sunshine

In September, the average sunshine is 7.6h.

UV index

In September, the average daily maximum UV index in Otterndorf is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 4 during September translates into the following guidance:
Take measures. Individuals with light skin might experience burns in under 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun.

Frequently asked questions

The average high-temperature and low-temperature in Otterndorf, Germany, during September are 17.5°C (63.5°F) and 13.1°C (55.6°F) respectively.

In September, the average relative humidity in Otterndorf is 80%.

In Otterndorf, in September, it is raining for 17.9 days, with typically 44mm (1.73") of accumulated precipitation.

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

The average day length in September in Otterndorf, Germany, is 12h and 41min.

On the first day of September in Otterndorf, sunrise is at 06:34 and sunset at 20:14. On the last day of the month, sunrise is at 07:25 and sunset at 19:03 CEST.

In September, the average sunshine duration is 7.6h.

In Otterndorf, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health risk 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
Otterndorf, Germany

  • Average high temperature in September: 17.5°C

The warmest month (with the highest average high temperature) is August (20.6°C).
The month with the lowest average high temperature is January (3.8°C).

  • Average low temperature in September: 13.1°C

The month with the highest average low temperature is August (15.5°C).
The coldest month (with the lowest average low temperature) is February (1°C).

Average pressure in September
Otterndorf, Germany

  • Average pressure in September: 1016mbar

The month with the highest atmospheric pressure is May (1016.1mbar).
The month with the lowest atmospheric pressure is November (1011.2mbar).

Average wind speed in September
Otterndorf, Germany

  • Average wind speed in September: 19.6km/h

The windiest month (with the highest average wind speed) is December (26.3km/h).
The calmest month (with the lowest average wind speed) is August (17.6km/h).

Average humidity in September
Otterndorf, Germany

  • Average humidity in September: 80%

The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is August (78%).

Average rainfall in September
Otterndorf, Germany

  • Average rainfall in September: 44mm

The wettest month (with the highest rainfall) is August (63mm).
The driest month (with the least rainfall) is April (20mm).

Average rainfall days in September
Otterndorf, Germany

  • Average rainfall days in September: 17.9 days

The month with the highest number of rainy days is August (20.3 days).
The month with the least rainy days is February (12.2 days).

Average snowfall in September
Otterndorf, Germany

  • 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
Otterndorf, Germany

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (4.7 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
Otterndorf, 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: 7h and 36min

The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).

Average sunshine days in September
Otterndorf, Germany

  • Average sunshine days in September: 8.2 days

The month with the most sunshine days is April (15.6 days).
The month with the least sunshine days is December (7.5 days).

Average UV index in September
Otterndorf, Germany

  • Average UV index in September: 4

The months with the highest UV index are June, 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
Otterndorf, Germany

  • Average cloud cover in September: 47

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

Average visibility in September
Otterndorf, 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).