September weather forecastOstramondra, Germany

September

Weather in September

September, the first month of the autumn in Ostramondra, is also an enjoyable month, with temperature in the range of an average low of 10.2°C (50.4°F) and an average high of 18.9°C (66°F).

Temperature

September is characterized by a mild reduction in the average high-temperature, from a warm 23.8°C (74.8°F) in August to a comfortable 18.9°C (66°F). In Ostramondra, an average nighttime temperature of 10.2°C (50.4°F) is expected during September.

Humidity

In Ostramondra, the average relative humidity in September is 75%.

Rainfall

In Ostramondra, in September, during 11.5 rainfall days, 27mm (1.06") of precipitation is typically accumulated. Throughout the year, there are 163.5 rainfall days, and 374mm (14.72") of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In Ostramondra, the average length of the day in September is 12h and 38min.
On the first day of the month, sunrise is at 06:28 and sunset at 20:00. On the last day of September, sunrise is at 07:14 and sunset at 18:54 CEST.

Sunshine

In September, the average sunshine in Ostramondra, Germany, is 8.6h.

UV index

The average daily maximum UV index in September in Ostramondra is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, a daily UV index of 4 turns into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.

Frequently asked questions

The average high-temperature, in September, in Ostramondra, is 18.9°C (66°F), while the average low-temperature is 10.2°C (50.4°F).

In September, the average relative humidity in Ostramondra, Germany, is 75%.

In Ostramondra, Germany, in September, during 11.5 rainfall days, 27mm (1.06") of precipitation is typically accumulated.

May through September are months without snowfall.

In Ostramondra, Germany, in September, it doesn't snow. In October, it regularly snows.

The average day length in September is 12h and 38min.

In September, on the first day of the month, sunrise is at 06:28 and sunset at 20:00. On the last day of the month, in Ostramondra, sunrise is at 07:14 and sunset at 18:54 CEST.

In September, the average sunshine duration is 8.6h.

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes 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 days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Ostramondra, Germany

  • Average high temperature in September: 18.9°C

The warmest months (with the highest average high temperature) are July and August (23.8°C).
The month with the lowest average high temperature is January (2°C).

  • Average low temperature in September: 10.2°C

The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (-2.3°C).

Average pressure in September
Ostramondra, Germany

  • Average pressure in September: 1017.5mbar

The months with the highest atmospheric pressure are September and October (1017.5mbar).
The month with the lowest atmospheric pressure is November (1014.2mbar).

Average wind speed in September
Ostramondra, Germany

  • Average wind speed in September: 10.4km/h

The windiest month (with the highest average wind speed) is December (15.3km/h).
The calmest month (with the lowest average wind speed) is August (10km/h).

Average humidity in September
Ostramondra, Germany

  • Average humidity in September: 75%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (69%).

Average rainfall in September
Ostramondra, Germany

  • Average rainfall in September: 27mm

The wettest month (with the highest rainfall) is May (44mm).
The driest month (with the least rainfall) is April (18mm).

Average rainfall days in September
Ostramondra, Germany

  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (10 days).

Average snowfall in September
Ostramondra, Germany

  • Average snowfall in September: 0mm

The month with the highest snowfall is December (62mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in September
Ostramondra, Germany

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (10.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

  • Average daylight in September: 12h and 36min

The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).

  • Average sunshine in September: 8h and 36min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 42min).

Average sunshine days in September
Ostramondra, Germany

  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is October (15.8 days).
The month with the least sunshine days is December (9.6 days).

Average UV index in September
Ostramondra, 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, March, November and December (UV index 2).

Average cloud cover in September
Ostramondra, Germany

  • Average cloud cover in September: 40

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in September
Ostramondra, Germany

  • Average visibility in September: 9km

The months with the highest visibility are March, April, May, June, July, August and September (9km).
The months with the lowest visibility are January, February, October, November and December (8km).