Weather in October
October sees
Naantali embracing fall with shorter days and much cooler weather. The sea temperature falls further to 6.6°C (43.9°F), indicating the advancement of autumn. Deeper into the month, the transitioning weather becomes a prelude to the looming winter. Layers and jackets become necessary tools for ventures to accommodate the cool and crisp air. The change in seasons paints Naantali in shades of autumn, making the landscape even more strikingly beautiful.
Sea temperature
In Naantali, the average seawater temperature in October is 6.6°C (43.9°F).
Note: You can swim in 6.6°C (43.9°F) below 10°C (50°F) with proper thermal wear; failing that, the cold shock and respiratory challenges are nearly certain. A short span at 13°C (55.4°F) without it is tough.
Daylight
In Naantali, the average length of the day in October is 10h and 5min.
On the first day of October, sunrise is at 07:39 and sunset at 19:03 EEST. On the last day of the month, sunrise is at 07:54 and sunset at 16:36 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.