October weather forecastHamina, Finland
October
Weather in October
As October sets in, the first signs of winter become perceptible in Hamina. Although the sea temperature maintains a mild 10.1°C (50.2°F), there is a marked drop in the mercury levels. The shortened daylight hours announce the impending cold season as the city prepares to transition into the winter mode. The golden hues of fall gradually give way to the frosty whiteness of the approaching winter.Sea temperature
In Hamina, Finland, in October, the average water temperature is 10.1°C (50.2°F).Note: Swimming in 10.1°C (50.2°F) is deemed hazardous. Exposure to temperatures below 10°C (50°F) leads to immediate severe cold shock and hyperventilation.
Daylight
In Hamina, the average length of the day in October is 10h and 5min.On the first day of the month, sunrise is at 07:18 and sunset at 18:43 EEST. On the last day of October, sunrise is at 07:34 and sunset at 16:15 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.
Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
In Hamina, Finland, the average seawater temperature in October is 10.1°C (50.2°F). Swimming in 10.1°C (50.2°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.
In October, the average day length in Hamina is 10h and 5min.
In October, on the first day of the month, sunrise is at 07:18 and sunset at 18:43 EEST. On the last day of the month, in Hamina, Finland, sunrise is at 07:34 and sunset at 16:15 EET.
On Sunday, 27. October 2024, at 04:00, Daylight Saving Time ends, 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
Hamina, Finland
- Average sea temperature in October: 10.1°C
The best month for swimming (with the highest average sea temperature) is July (19.3°C).
The coldest month (with the lowest average sea temperature) is February (-0.5°C).
Average daylight in October
Hamina, Finland
- Average daylight in October: 10h and 6min
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).





