January
A restricted season or specialist planning may be needed.
YOUR YEAR BENEATH THE SURFACE
Finland.
Explore Baltic wrecks and freshwater sites with cold water at depth. Summer improves boat access and daylight; winter ice diving is a specialist activity.
Best-season months: June, July, August, September
SEE THE WHOLE PICTURE
A month-by-month guide
February
A restricted season or specialist planning may be needed.
March
A restricted season or specialist planning may be needed.
April
A good option, with local differences to consider.
May
A good option, with local differences to consider.
June
Generally the most favourable seasonal window.
July
Generally the most favourable seasonal window.
August
Generally the most favourable seasonal window.
September
Generally the most favourable seasonal window.
October
Conditions depend more on region, weather or access.
November
Conditions depend more on region, weather or access.
December
A restricted season or specialist planning may be needed.
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