September weather forecastAcht, Germany

September

Weather in September

September, the first month of the autumn in Acht, is still a comfortable month, with an average temperature fluctuating between 8.9°C (48°F) and 18.4°C (65.1°F).

Temperature

As September begins, there is a minor decrease in the average high-temperature, softly falling from an agreeable 22.3°C (72.1°F) in August to an enjoyable 18.4°C (65.1°F). During the month of September, the temperature generally drops to a low average of 8.9°C (48°F).

Humidity

The average relative humidity in September is 80%.

Rainfall

September is the month with the least rainfall in Acht. Rain falls for 11.5 days and accumulates 24mm (0.94") of precipitation.

Snowfall

June through September are months without snowfall in Acht.

Daylight

In Acht, the average length of the day in September is 12h and 37min.
On the first day of September in Acht, sunrise is at 06:47 and sunset at 20:16. On the last day of the month, sunrise is at 07:31 and sunset at 19:11 CEST.

Sunshine

In Acht, the average sunshine in September is 8.2h.

UV index

In September, the average daily maximum UV index in Acht is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The average daily UV index of 3 in September transforms into the following instructions:
Act with care - Obligation to protect against skin and eye damage is highlighted. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

Frequently asked questions

In Acht, in September, the average high-temperature is 18.4°C (65.1°F), and the average low-temperature is 8.9°C (48°F).

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

September is the month with the least rainfall. Rain falls for 11.5 days and accumulates 24mm (0.94") of precipitation.

In Acht, Germany, in September, during 11.5 rainfall days, 24mm (0.94") of precipitation is typically accumulated.

In Acht, snow does not fall in June through September.

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

The average day length in September is 12h and 37min.

On the first day of September, sunrise is at 06:47 and sunset at 20:16. On the last day of the month, sunrise is at 07:31 and sunset at 19:11 CEST.

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

In Acht, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability 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
Acht, Germany

  • Average high temperature in September: 18.4°C

The warmest months (with the highest average high temperature) are July and August (22.3°C).
The month with the lowest average high temperature is January (2.8°C).

  • Average low temperature in September: 8.9°C

The month with the highest average low temperature is August (12.2°C).
The coldest month (with the lowest average low temperature) is January (-1.4°C).

Average pressure in September
Acht, Germany

  • Average pressure in September: 1017.8mbar

The month with the highest atmospheric pressure is September (1017.8mbar).
The month with the lowest atmospheric pressure is November (1013.9mbar).

Average wind speed in September
Acht, Germany

  • Average wind speed in September: 9.3km/h

The windiest month (with the highest average wind speed) is December (13.6km/h).
The calmest month (with the lowest average wind speed) is August (8.9km/h).

Average humidity in September
Acht, Germany

  • Average humidity in September: 80%

The months with the highest relative humidity are January and December (90%).
The months with the lowest relative humidity are April, July and August (76%).

Average rainfall in September
Acht, Germany

  • Average rainfall in September: 24mm

The wettest month (with the highest rainfall) is May (55mm).
The driest month (with the least rainfall) is September (24mm).

Average rainfall days in September
Acht, Germany

  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is February (7.1 days).

Average snowfall in September
Acht, Germany

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (136mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Acht, Germany

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in September: 12h and 36min

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

  • 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 December (Average sunshine: 3h and 24min).

Average sunshine days in September
Acht, Germany

  • Average sunshine days in September: 15.9 days

The month with the most sunshine days is October (17.3 days).
The month with the least sunshine days is June (11.2 days).

Average UV index in September
Acht, Germany

  • Average UV index in September: 3

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September
Acht, Germany

  • Average cloud cover in September: 42

The month with the most cloud cover is December (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 38).

Average visibility in September
Acht, Germany

  • Average visibility in September: 8km

The months with the highest visibility are April and August (9km).
The months with the lowest visibility are January, November and December (7km).