January
A restricted season or specialist planning may be needed.
YOUR YEAR BENEATH THE SURFACE
Bulgaria.
Summer offers warmer water and more coastal diving trips. Water stays cold at depth, and spring or autumn services may be limited.
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 restricted season or specialist planning may be needed.
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
A good option, with local differences to consider.
November
A restricted season or specialist planning may be needed.
December
A restricted season or specialist planning may be needed.
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