September weather forecastAlvøen, Norway

September

Weather in September

September, the first month of the autumn in Alvøen, is also a moderate month, with an average temperature fluctuating between 13.9°C (57°F) and 11°C (51.8°F).

Temperature

September records an average high-temperature of a still refreshing 13.9°C (57°F), indicating a minor variation from the preceding month. Alvøen sees a gentle drop from the daily peak temperature in September, with an average low settling at a fresh 11°C (51.8°F).

Humidity

In Alvøen, Norway, the average relative humidity in September is 79%.

Rainfall

In September, in Alvøen, Norway, the rain falls for 22.3 days. Throughout September, 179mm (7.05") of precipitation is accumulated. In Alvøen, during the entire year, the rain falls for 227.1 days and collects up to 1594mm (62.76") of precipitation.

Snowfall

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

Daylight

In Alvøen, the average length of the day in September is 12h and 52min.
On the first day of the month, sunrise is at 06:34 and sunset at 20:43. On the last day of September, in Alvøen, Norway, sunrise is at 07:43 and sunset at 19:14 CEST.

Sunshine

The average sunshine in September in Alvøen is 6h.

UV index

In Alvøen, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 3 in September converts into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The Sun's radiation is especially intense around midday; try to stay in shade during this period. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.

Frequently asked questions

In Alvøen, 13.9°C (57°F) is the average high-temperature and 11°C (51.8°F) is the average low-temperature during September.

In September, the average relative humidity is 79%.

In Alvøen, Norway, in September, it is raining for 22.3 days, with typically 179mm (7.05") of accumulated precipitation.

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

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

The average day length in September is 12h and 52min.

On the first day of September in Alvøen, sunrise is at 06:34 and sunset at 20:43. On the last day of the month, sunrise is at 07:43 and sunset at 19:14 CEST.

In Alvøen, the average sunshine duration in September is 6h.

The average daily maximum UV index in September in Alvøen, Norway, is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to the Sun's 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
Alvøen, Norway

  • Average high temperature in September: 13.9°C

The warmest month (with the highest average high temperature) is August (16.1°C).
The month with the lowest average high temperature is January (2.8°C).

  • Average low temperature in September: 11°C

The month with the highest average low temperature is August (12.7°C).
The coldest month (with the lowest average low temperature) is February (0°C).

Average pressure in September
Alvøen, Norway

  • Average pressure in September: 1012mbar

The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1005.8mbar).

Average wind speed in September
Alvøen, Norway

  • Average wind speed in September: 16.7km/h

The windiest months (with the highest average wind speed) are January and December (21.1km/h).
The calmest month (with the lowest average wind speed) is June (13.6km/h).

Average humidity in September
Alvøen, Norway

  • Average humidity in September: 79%

The month with the highest relative humidity is March (81%).
The months with the lowest relative humidity are May and October (75%).

Average rainfall in September
Alvøen, Norway

  • Average rainfall in September: 179mm

The wettest month (with the highest rainfall) is October (201mm).
The driest month (with the least rainfall) is April (73mm).

Average rainfall days in September
Alvøen, Norway

  • Average rainfall days in September: 22.3 days

The month with the highest number of rainy days is September (22.3 days).
The month with the least rainy days is February (14.8 days).

Average snowfall in September
Alvøen, Norway

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (127mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Alvøen, Norway

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Alvøen, Norway

  • Average daylight in September: 12h and 54min

The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).

  • Average sunshine in September: 6h and 0min

The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 2h and 12min).

Average sunshine days in September
Alvøen, Norway

  • Average sunshine days in September: 6.6 days

The month with the most sunshine days is May (12 days).
The month with the least sunshine days is December (5.4 days).

Average UV index in September
Alvøen, Norway

  • Average UV index in September: 3

The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in September
Alvøen, Norway

  • Average cloud cover in September: 58

The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is May (Cloud cover 47).

Average visibility in September
Alvøen, Norway

  • Average visibility in September: 9km

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