Weather in May
May brings the unmistakable signs of spring with sea temperatures jumping sharply to 6.9°C (44.4°F). The shift to warmer weather opens up fresh possibilities for residents and tourists in Porvoo. Food festivals, art exhibitions and a host of outdoor activities pick up, injecting life into the city’s vibrant cultural scene. Additionally, fun-filled trips to the beach or a leisurely boat ride on the Porvoo River become popular options.
Note: Swimming in 6.9°C (44.4°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.
On the first day of the month, sunrise is at 05:11 and sunset at 21:17. On the last day of May, in Porvoo, sunrise is at 04:02 and sunset at 22:27 EEST.
[Resources]Sea temperature
In Porvoo, the average seawater temperature in May is 6.9°C (44.4°F).Note: Swimming in 6.9°C (44.4°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.
Daylight
The average length of the day in May is 17h and 17min.On the first day of the month, sunrise is at 05:11 and sunset at 21:17. On the last day of May, in Porvoo, sunrise is at 04:02 and sunset at 22:27 EEST.
Frequently asked questions
How cold is the water in May in Porvoo?
In May, the average sea temperature in Porvoo is 6.9°C (44.4°F). Swimming in 6.9°C (44.4°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.
What is the average length of the day in May in Porvoo?
In May, the average day length in Porvoo is 17h and 17min.
What time are sunrise and sunset in May in Porvoo?
In May, on the first day of the month, sunrise is at 05:11 and sunset at 21:17. On the last day of the month, sunrise is at 04:02 and sunset at 22:27 EEST.
Average sea temperature in May
Porvoo, Finland
- Average sea temperature in May: 6.9°C
The best months for swimming (with the highest average sea temperature) are July and August (18.7°C).
The coldest months (with the lowest average sea temperature) are February and March (-0.2°C).
Average daylight in May
Porvoo, 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).
Porvoo, Finland
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