Search for cities, countries, lakes and rivers
Sea Temperature in Hanko in October
Complete information on the sea temperature range in the Gulf of Finland in Hanko in October. Historical daily data. Climate details for October. Tips on swimming conditions and beach relaxation in Hanko. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Water Temperature Range in Hanko in October
5°C
MINIMUN
10.5°C
AVERAGE
16°C
MAXIMUM
Historical Data of Water Temperature in October in Hanko
Water Temperature Chart for Gulf of Finland in Hanko in October
Sea Temperature Table in Hanko in October Over the Past Years
Day | 2024 | 2023 | 2022 | Average |
---|---|---|---|---|
Oct 1 | 12°C | 14°C | 13°C | 13.5°C |
Oct 2 | 12°C | 13°C | 13°C | 13.3°C |
Oct 3 | 12°C | 13°C | 13°C | 13.3°C |
Oct 4 | 11°C | 13°C | 12°C | 12.5°C |
Oct 5 | 12°C | 13°C | 12°C | 13.0°C |
Oct 6 | 11°C | 14°C | 12°C | 12.8°C |
Oct 7 | 11°C | 12°C | 12°C | 12.3°C |
Oct 8 | 11°C | 13°C | 11°C | 12.3°C |
Oct 9 | 11°C | 13°C | 11°C | 12.3°C |
Oct 10 | 11°C | 13°C | 11°C | 12.0°C |
Oct 11 | 11°C | 13°C | 10°C | 11.8°C |
Oct 12 | 11°C | 13°C | 10°C | 11.8°C |
Oct 13 | 11°C | 12°C | 10°C | 11.5°C |
Oct 14 | 11°C | 12°C | 9°C | 11.0°C |
Oct 15 | 11°C | 12°C | 9°C | 11.3°C |
Oct 16 | 11°C | 12°C | 9°C | 11.0°C |
Oct 17 | 10°C | 12°C | 9°C | 10.8°C |
Oct 18 | 11°C | 12°C | 8°C | 10.8°C |
Oct 19 | 10°C | 11°C | 8°C | 10.3°C |
Oct 20 | 10°C | 11°C | 8°C | 10.3°C |
Oct 21 | 10°C | 10°C | 7°C | 9.5°C |
Oct 22 | 10°C | 11°C | 7°C | 9.8°C |
Oct 23 | 9°C | 10°C | 7°C | 9.3°C |
Oct 24 | 10°C | 10°C | 6°C | 9.3°C |
Oct 25 | 10°C | 10°C | 6°C | 9.3°C |
Oct 26 | 10°C | 10°C | 6°C | 9.3°C |
Oct 27 | 9°C | 10°C | 6°C | 9.0°C |
Oct 28 | 9°C | 10°C | 5°C | 8.8°C |
Oct 29 | 10°C | 11°C | 5°C | 9.3°C |
Oct 30 | 10°C | 11°C | 5°C | 9.0°C |



Hanko Climate and Swimming Opportunities in October
7°C
Average Day Air Temperature
3°C
Average Night Air Temperature
74 mm
Precipitation Amount per Month
12 days
Number of Rainy Days
10 hrs
Daylight
per Day
3 hrs
Sunshine
per Day
18 km/h
Average Wind Speed
86%
Average
humidity
Hanko lies within the Southern Finland Province in Finland. The average daytime temperature in Hanko in October is 7°C (45°F), while the nighttime average is 3°C (38°F). There are typically 12 rainy days during the month, with a total precipitation of 74 mm (2.9 inches). The daylight duration in October in Hanko is 10 hours, with an average of 3 hours of sunshine per day. The average wind speed in October is 18 km/h (11 mph), and the humidity level is around 86%.
The water temperature in Hanko in October ranges from 8°C to 13°C (46°F to 55°F). At the beginning of the month, the average temperature is around 13°C (55°F), shifting to 11°C (52°F) by mid-October and reaching 9°C (48°F) in the last ten days. Overall, the average sea temperature in Hanko for October is 11°C (52°F). The water is still cold, but for short swims, it can be manageable. Warm clothes are necessary after swimming.
Sea Temperature in October in Nearby Cities
Frequently Asked Questions About Water Temperatures in October in Hanko
What is the sea temperature in Hanko in October?
The water temperature in the Gulf of Finland in Hanko in October ranges from 8°C to 13°C (46°F to 55°F).
Is it possible to swim in the Gulf of Finland in Hanko in October?
The average sea temperature in Hanko in October is 11°C (52°F), and the air temperature is 7°C (45°F), so the water is still cold, but for short swims, it can be manageable. Warm clothes are necessary after swimming.