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Best Time to Dive Saint Kitts and Nevis

Across 5 Saint Kitts and Nevis 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 (71%), October (68%) and March (62%). February historically shows the fewest favorable days (31% 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 1.2 m to 1.7 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 Saint Kitts and Nevis?

MonthHistorically favorable daysWater tempTypical seas
Jan34%27°C1.7 m
Feb31%27°C1.7 m
Mar62%27°C1.5 m
Apr62%27°C1.5 m
May71%28°C1.3 m
Jun46%29°C1.4 m
Jul35%29°C1.5 m
Aug61%30°C1.4 m
Sep86%30°C1.2 m
Oct68%30°C1.5 m
Nov54%29°C1.5 m
Dec37%28°C1.7 m

% = share of sampled days scoring in the favorable band, median across 5 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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