January
Conditions depend more on region, weather or access.
YOUR YEAR BENEATH THE SURFACE
Japan.
Okinawa offers warm-water reef diving, with summer and autumn typhoon disruptions possible. Northern Japan has a separate cold-water and ice-diving season.
Best-season months: May, June
SEE THE WHOLE PICTURE
A month-by-month guide
February
Conditions depend more on region, weather or access.
March
Conditions depend more on region, weather or access.
April
Conditions depend more on region, weather or access.
May
Generally the most favourable seasonal window.
June
Generally the most favourable seasonal window.
July
Conditions depend more on region, weather or access.
August
Conditions depend more on region, weather or access.
September
Conditions depend more on region, weather or access.
October
A good option, with local differences to consider.
November
Conditions depend more on region, weather or access.
December
Conditions depend more on region, weather or access.
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