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Best Time to Dive Antigua and Barbuda

Across 6 Antigua and Barbuda dive sites with multi-year conditions history, September historically shows the most favorable days — 86% of sampled days in the good band. The next-highest months are May (76%), August (72%) and April (63%). February historically shows the fewest favorable days (28% of sampled days). Average water temperature in the sample runs from about 27°C in February to 30°C in September. Typical seas range from 1.3 m to 1.8 m of significant wave height through the year. These figures are historical climatology computed from measured conditions — patterns, not a forecast or a guarantee.

Computed from our own conditions climatology — measured history, not brochure copy.

Which months are historically most favorable in Antigua and Barbuda?

MonthHistorically favorable daysWater tempTypical seas
Jan30%27°C1.8 m
Feb28%27°C1.8 m
Mar48%27°C1.6 m
Apr63%27°C1.5 m
May76%28°C1.3 m
Jun51%29°C1.5 m
Jul58%29°C1.5 m
Aug72%29°C1.4 m
Sep86%30°C1.3 m
Oct62%30°C1.6 m
Nov48%29°C1.6 m
Dec32%28°C1.8 m

% = share of sampled days scoring in the favorable band, median across 6 dive sites with at least two years of history. Ringed = historical peak.

How does this compare worldwide? The Most Reliable Diving Months on Earth ranks 61 countries by the same measure.

Marine life seasons

Sighting patterns across the wider Caribbean & Bahamas region — not site-specific promises.

Bars are Jan–Dec — months when sightings historically concentrate (GBIF occurrence records). Wildlife is never guaranteed.

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