May
Weather in May
May heralds the definite arrival of spring in Hanko. The sea temperature shows a dramatic jump, averaging around 5.8°C (42.4°F) that contributes to an agreeable climate. Charming daylight hours metamorphose the city into a vivid canvas of color and activity. The month indulges in longer sunny periods with an occasional cool breeze rustling through the city. Hanko in May becomes vibrant and lively, bidding a final farewell to the remnants of winter's chill.
Note: Diving into 5.8°C (42.4°F) is practical below 10°C (50°F), given you're wearing protective swim gear; without it, expect a quick onset of cold shock and a struggle to breathe. Merely touching waters at 13°C (55.4°F) feels ice-cold.
On the first day of May in Hanko, Finland, sunrise is at 05:24 and sunset at 21:25. On the last day of the month, sunrise is at 04:19 and sunset at 22:32 EEST.
Sea temperature
In Hanko, the average seawater temperature in May is 5.8°C (42.4°F).Note: Diving into 5.8°C (42.4°F) is practical below 10°C (50°F), given you're wearing protective swim gear; without it, expect a quick onset of cold shock and a struggle to breathe. Merely touching waters at 13°C (55.4°F) feels ice-cold.
Daylight
In May, the average length of the day is 17h and 9min.On the first day of May in Hanko, Finland, sunrise is at 05:24 and sunset at 21:25. On the last day of the month, sunrise is at 04:19 and sunset at 22:32 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
What is the sea water temperature in May in Hanko?
In Hanko, Finland, in May, the average water temperature is 5.8°C (42.4°F). Swimming in 5.8°C (42.4°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.
How many hours of daylight does Hanko have in May?
In Hanko, Finland, the average day length in May is 17h and 9min.
When is the sunrise / sunset in May in Hanko?
In May, on the first day of the month, sunrise is at 05:24 and sunset at 21:25. On the last day of the month, in Hanko, Finland, sunrise is at 04:19 and sunset at 22:32 EEST.
Average sea temperature in May
Hanko, Finland
- Average sea temperature in May: 5.8°C
The best month for swimming (with the highest average sea temperature) is August (17.8°C).
The coldest month (with the lowest average sea temperature) is March (0.3°C).
Average daylight in May
Hanko, Finland
- Average daylight in May: 17h and 1min
The month with the longest days is June (Average daylight: 18h and 42min).
The month with the shortest days is December (Average daylight: 6h and 6min).
