May
Weather in May
May brings in the warmth and brightness to Naantali. The shift in season can be most notably observed in the significant rise in sea temperatures, now averaging at a mild 3.8°C (38.8°F). With the arrival of more warmth, the city turns vibrant, smearing green everywhere. As a harbinger of summer, this period invites people to enjoy outdoor activities. The weather is on a moderate scale, balancing between the past cold and the upcoming heat of summer.
Note: During swimming events, this situation presents an imminent life risk. Instantaneous loss of breath control makes clear thinking a near impossibility. A specialized swimsuit is compulsory to limit thermal dissipation.
On the first day of the month, sunrise is at 05:25 and sunset at 21:32. On the last day of May, in Naantali, sunrise is at 04:16 and sunset at 22:42 EEST.
Sea temperature
In May, the average sea temperature is 3.8°C (38.8°F).Note: During swimming events, this situation presents an imminent life risk. Instantaneous loss of breath control makes clear thinking a near impossibility. A specialized swimsuit is compulsory to limit thermal dissipation.
Daylight
The average length of the day in May is 17h and 19min.On the first day of the month, sunrise is at 05:25 and sunset at 21:32. On the last day of May, in Naantali, sunrise is at 04:16 and sunset at 22:42 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 temperature in May in Naantali?
In Naantali, Finland, the average seawater temperature in May is 3.8°C (38.8°F). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.
What is the average length of the day in May in Naantali?
In Naantali, Finland, the average day length in May is 17h and 19min.
What time are sunrise and sunset in May in Naantali?
In May, on the first day of the month, sunrise is at 05:25 and sunset at 21:32. On the last day of the month, in Naantali, Finland, sunrise is at 04:16 and sunset at 22:42 EEST.
Average sea temperature in May
Naantali, Finland
- Average sea temperature in May: 3.8°C
The best month for swimming (with the highest average sea temperature) is August (12.8°C).
The coldest month (with the lowest average sea temperature) is February (-0.4°C).
Average daylight in May
Naantali, Finland
- Average daylight in May: 17h and 2min
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).
