Finland
Ruonala
About this Dive Site
Description
Explore the underwater wonders of Ruonala near Kotka, a captivating dive site perfect for all skill levels. Discover intriguing rocky formations and hidden underwater caves teeming with local marine life like crayfish and pike. This accessible location offers a unique glimpse into Finland's aquatic environment.
Best Time to Dive
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1°C | 1°C | 4°C | 8°C | 14°C | 17°C | 18°C | 15°C | 11°C | 7°C | 3°C | |
Peak Season
June, July, August
Jan
Ice diving possible, but extremely challenging and requires specialized gear and experience.
Feb
Ice diving.
Mar
Ice breaking up, potential for early season ice diving.
Apr
Ice has melted, initial spring visibility can be poor due to sediment.
More monthly highlights
May
Marine life starting to become more active.
Jun
Good visibility, increasing marine activity.
Jul
Peak summer diving, good for exploring wrecks and reefs.
Aug
Warmest water temperatures, excellent visibility.
Sep
Autumn colors underwater, good visibility.
Oct
Seals can be more active.
Nov
Water temperatures dropping, visibility can be good before ice forms.
Dec
Risk of ice formation, limited diving opportunities.
Please login to write a review