September weather forecast
Alesund, Norway

September signals the beginning of the fall season in Alesund. The temperatures begin their downward trend, and daylight hours continue to decrease. It is the wettest month of the year, culminating in a rainfall of about 190mm (7.48"). Despite the increased rain, the city's beauty is amplified with the onset of the colorful fall foliage, making it a picturesque site to behold.

Temperature

September brings a minor shift in the average high-temperature in Alesund, adjusting from a moderate 15°C (59°F) in August to a cool 12°C (53.6°F). Alesund logs an average low-temperature of 7°C (44.6°F) during the nights of September, subtly lower than its daytime highs.

Rainfall

The month with the most rainfall is September, when the rain falls for 27 days and typically aggregates up to 190mm (7.48") of precipitation.

Sea temperature

In September, the average sea temperature is 13.7°C (56.7°F).
Note: Dipping in 13.7°C (56.7°F) at temperatures less than 10°C (50°F) without proper gear can lead to pronounced cold shock and breathing difficulties.

Daylight

In Alesund, Norway, the average length of the day in September is 12h and 57min.
On the first day of the month, sunrise is at 06:24 and sunset at 20:45. On the last day of September, sunrise is at 07:41 and sunset at 19:08 CEST.

Sunshine

The average sunshine in September in Alesund is 3h.

UV index

In Alesund, the average daily maximum UV index in September is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 2 in September, converts into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.