November weather forecast
Mariehamn Airport, Finland

November at Mariehamn Airport is marked by a significant decrease in temperature from October, giving an early alert for the upcoming winter. It also signifies a consistent and steady amount of rainfall comparable to that seen in October. With even lesser daylight hours, November bids a semi-official farewell to the sunny spells. The UV index stays at a minimal range, indicating the scarcity of sunny days. The sea temperature lowers further, echoing nature's call for winter's arrival.

Temperature

Transition into November in Mariehamn Airport subtly marks a drop in the average high-temperature, moderately moving from a frosty 9°C (48.2°F) in October to a wintry 5°C (41°F). Mariehamn Airport, during the nights of November, averages a temperature close to its daytime high, at a still cold 0°C (32°F).

Rainfall

In Mariehamn Airport, in November, it is raining for 19 days, with typically 59mm (2.32") of accumulated precipitation. Throughout the year, there are 176 rainfall days, and 508mm (20") of precipitation is accumulated.

Sea temperature

In Mariehamn Airport, the average seawater temperature in November is 6°C (42.8°F).
Note: Swimming in 6°C (42.8°F) poses a severe threat. Even short exposure to 13°C (55.4°F) is chilling, and going below 10°C (50°F) can cause breathing irregularities and intense cold shock, based on one's stamina.

Daylight

In November, the average length of the day in Mariehamn Airport is 7h and 32min.
On the first day of November, sunrise is at 08:04 and sunset at 16:43. On the last day of the month, sunrise is at 09:15 and sunset at 15:43 EET.

Sunshine

January, February, November and December, with an average of 1h of sunshine, are months with the least sunshine in Mariehamn Airport.

UV index

The months with the lowest UV index in Mariehamn Airport, Finland, are January, February, November and December, with an average maximum UV index of 0. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 0 during November translates into the following guidance:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.