September weather forecastAltensteig, Germany

September

Weather in September

The first month of the autumn, September, is also an enjoyable month in Altensteig, Germany, with an average temperature fluctuating between 8.5°C (47.3°F) and 18.3°C (64.9°F).

Temperature

September marks a gentle change in average high-temperature, declining from August's pleasant 22.8°C (73°F) to an enjoyable 18.3°C (64.9°F). An average low-temperature of 8.5°C (47.3°F) is observed in Altensteig during the September nights.

Humidity

In September, the average relative humidity is 81%.

Rainfall

The month with the least rainfall in Altensteig is September, when the rain falls for 15.2 days and typically collects 43mm (1.69") of precipitation.

Snowfall

June through September are months without snowfall in Altensteig.

Daylight

The average length of the day in September is 12h and 35min.
On the first day of the month, sunrise is at 06:43 and sunset at 20:07. On the last day of September, sunrise is at 07:24 and sunset at 19:06 CEST.

Sunshine

The average sunshine in September is 8.2h.

UV index

In Altensteig, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 3 during September leads to these advisories:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. When the Sun is at its strongest around midday, find shade and limit exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.

Updated: Feb 12, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Altensteig, in September, the average high-temperature is 18.3°C (64.9°F), and the average low-temperature is 8.5°C (47.3°F).

In Altensteig, Germany, the average relative humidity in September is 81%.

September is the month with the least rainfall in Altensteig, Germany. Rain falls for 15.2 days and accumulates 43mm (1.69") of precipitation.

In Altensteig, during September, the rain falls for 15.2 days and regularly aggregates up to 43mm (1.69") of precipitation.

In Altensteig, Germany, snow does not fall in June through September.

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

In Altensteig, Germany, the average day length in September is 12h and 35min.

On the first day of September, sunrise is at 06:43 and sunset at 20:07. On the last day of the month, sunrise is at 07:24 and sunset at 19:06 CEST.

In Altensteig, the average sunshine duration in September is 8.2h.

In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

22.8°C

18.3°C

13.2°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

8.3km/h

9.1km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

9.1

12.1

13.7

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Altensteig, Germany

Average high temperature in September: 18.3°C

The warmest months (with the highest average high temperature) are July and August (22.8°C).
The month with the lowest average high temperature is January (2.3°C).

Average low temperature in September: 8.5°C

The month with the highest average low temperature is August (12.1°C).
The coldest month (with the lowest average low temperature) is February (-3.1°C).

Average pressure in September
Altensteig, Germany

Average pressure in September: 1018.5mbar

The month with the highest atmospheric pressure is December (1020.1mbar).
The month with the lowest atmospheric pressure is November (1015.4mbar).

Average wind speed in September
Altensteig, Germany

Average wind speed in September: 7.8km/h

The windiest month (with the highest average wind speed) is December (10.9km/h).
The calmest month (with the lowest average wind speed) is August (7.5km/h).

Average humidity in September
Altensteig, Germany

Average humidity in September: 81%

The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are July and August (77%).

Average rainfall in September
Altensteig, Germany

Average rainfall in September: 43mm

The wettest month (with the highest rainfall) is May (111mm).
The driest month (with the least rainfall) is September (43mm).

Average rainfall days in September
Altensteig, Germany

Average rainfall days in September: 15.2 days

The month with the highest number of rainy days is May (23.2 days).
The month with the least rainy days is February (9.1 days).

Average snowfall in September
Altensteig, Germany

Average snowfall in September: 0mm

The month with the highest snowfall is January (345mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Altensteig, Germany

Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (16.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September: 12h and 36min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

Average sunshine in September: 8h and 12min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).