Weather in October
October brings a significant decrease in sea temperatures marking it at 10.3°C (50.5°F), reflecting the deepening autumn in Porvoo. The daylight hours start to diminish significantly, but the city continues to bristle with activity. A popular event is the annual Halloween celebration known for its fun-packed programs and street parties. Autumn shades continue to decorate the city, creating picturesque photo opportunities for residents and visitors alike.
Note: Beware when you're in 10.3°C (50.5°F) waters; 13°C (55.4°F) is chilling and anything below 10°C (50°F) could cause breathing hindrance and a sudden cold shock, given your physical condition.
On the first day of the month, sunrise is at 07:24 and sunset at 18:49 EEST. On the last day of October, in Porvoo, sunrise is at 07:39 and sunset at 16:21 EET.
Note: On Sunday, 27. October 2024, at 04:00, Daylight Saving Time ends, and the time zone changes from EEST to EET. Daylight Saving Time starts again on Sunday, 30. March 2025, at 03:00; consequently, the time zone reverts from EET to EEST.
[Resources]Sea temperature
In Porvoo, Finland, the average seawater temperature in October is 10.3°C (50.5°F).Note: Beware when you're in 10.3°C (50.5°F) waters; 13°C (55.4°F) is chilling and anything below 10°C (50°F) could cause breathing hindrance and a sudden cold shock, given your physical condition.
Daylight
The average length of the day in October in Porvoo is 10h and 6min.On the first day of the month, sunrise is at 07:24 and sunset at 18:49 EEST. On the last day of October, in Porvoo, sunrise is at 07:39 and sunset at 16:21 EET.
Note: On Sunday, 27. October 2024, at 04:00, Daylight Saving Time ends, and the time zone changes from EEST to EET. Daylight Saving Time starts again on Sunday, 30. March 2025, at 03:00; consequently, the time zone reverts from EET to EEST.
Frequently asked questions
How cold is the water in October in Porvoo?
In Porvoo, Finland, in October, the average water temperature is 10.3°C (50.5°F). Swimming in 10.3°C (50.5°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.
How many hours of daylight does Porvoo have in October?
In Porvoo, the average day length in October is 10h and 6min.
What time are sunrise and sunset in October in Porvoo?
On the first day of October, sunrise is at 07:24 and sunset at 18:49 EEST. On the last day of the month, sunrise is at 07:39 and sunset at 16:21 EET.
When does Daylight Saving Time (DST) end in October in Porvoo?
On Sunday, 27. October 2024, at 04:00, Daylight Saving Time ends in Porvoo, and the time zone changes from EEST to EET. The next DST starts on Sunday, 30. March 2025, at 03:00.
Average sea temperature in October
Porvoo, Finland
- Average sea temperature in October: 10.3°C
The best months for swimming (with the highest average sea temperature) are July and August (18.7°C).
The coldest months (with the lowest average sea temperature) are February and March (-0.2°C).
Average daylight in October
Porvoo, Finland
- Average daylight in October: 10h and 1min
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).
Porvoo, Finland
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