September weather forecastBrettesnes, Norway

September

Weather in September

September, the first month of the autumn in Brettesnes, is still a cool month, with an average temperature varying between 11.3°C (52.3°F) and 9.3°C (48.7°F).

Temperature

The shift into September finds Brettesnes, Norway, at an average high-temperature of a fresh 11.3°C (52.3°F), closely comparable to August's conditions. Brettesnes's average temperature throughout the nights in September exhibits a minor decrease from daytime highs, stabilizing at a chilly 9.3°C (48.7°F).

Humidity

In September, the average relative humidity is 78%.

Rainfall

In Brettesnes, in September, it is raining for 19.3 days, with typically 88mm (3.46") of accumulated precipitation. Throughout the year, there are 178.7 rainfall days, and 963mm (37.91") of precipitation is accumulated.

Snowfall

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

Daylight

In Brettesnes, the average length of the day in September is 13h and 14min.
On the first day of the month, sunrise is at 05:28 and sunset at 20:32. On the last day of September, in Brettesnes, sunrise is at 07:12 and sunset at 18:28 CEST.

Sunshine

In September, the average sunshine is 6.2h.

UV index

In September, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 3 during September translates into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.

Updated: Jan 26, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

During September, Brettesnes experiences an average high-temperature of 11.3°C (52.3°F) and a low-temperature of 9.3°C (48.7°F).

In September, the average relative humidity is 78%.

In Brettesnes, Norway, in September, during 19.3 rainfall days, 88mm (3.46") of precipitation is typically accumulated.

June through September are months without snowfall.

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

In Brettesnes, Norway, the average day length in September is 13h and 14min.

In September, on the first day of the month, sunrise is at 05:28 and sunset at 20:32. On the last day of the month, in Brettesnes, sunrise is at 07:12 and sunset at 18:28 CEST.

In September, the average sunshine duration in Brettesnes is 6.2h.

The average daily maximum UV index in September in Brettesnes, Norway, is 3. A UV Index reading of 3 to 5 represents 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

13.5°C

11.3°C

7.5°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

17.5km/h

20.8km/h

24.2km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

8.9

9.6

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Brettesnes, Norway

Average high temperature in September: 11.3°C

The warmest month (with the highest average high temperature) is August (13.5°C).
The month with the lowest average high temperature is February (1.5°C).

Average low temperature in September: 9.3°C

The month with the highest average low temperature is August (11.2°C).
The coldest month (with the lowest average low temperature) is February (-0.8°C).

Average pressure in September
Brettesnes, Norway

Average pressure in September: 1008.5mbar

The month with the highest atmospheric pressure is May (1013.9mbar).
The month with the lowest atmospheric pressure is December (1000.8mbar).

Average wind speed in September
Brettesnes, Norway

Average wind speed in September: 19.4km/h

The windiest month (with the highest average wind speed) is December (26km/h).
The calmest month (with the lowest average wind speed) is July (15.6km/h).

Average humidity in September
Brettesnes, Norway

Average humidity in September: 78%

The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is March (71%).

Average rainfall in September
Brettesnes, Norway

Average rainfall in September: 88mm

The wettest month (with the highest rainfall) is December (108mm).
The driest month (with the least rainfall) is July (50mm).

Average rainfall days in September
Brettesnes, Norway

Average rainfall days in September: 19.3 days

The month with the highest number of rainy days is September (19.3 days).
The month with the least rainy days is February (7.9 days).

Average snowfall in September
Brettesnes, Norway

Average snowfall in September: 0mm

The month with the highest snowfall is January (241mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Brettesnes, Norway

Average snowfall days in September: 0 days

The month with the highest number of snowfall days is March (14.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September: 13h and 12min

The month with the longest days is August (Average daylight: 17h and 30min).
The month with the shortest days is June (Average daylight: 0h and 0min).

Average sunshine in September: 6h and 12min

The month with the most sunshine is August (Average sunshine: 8h and 42min).
The month with the least sunshine is December (Average sunshine: 0h and 12min).