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Best Time to Dive Chuuk

Across 18 Chuuk dive sites with multi-year conditions history, July historically shows the most favorable days — 99% of sampled days in the good band. The next-highest months are June (99%), September (99%) and August (95%). February historically shows the fewest favorable days (16% of sampled days). Average water temperature in the sample runs from about 29°C in February to 30°C in October. Typical seas range from 0.8 m to 1.6 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 Chuuk?

MonthHistorically favorable daysWater tempTypical seas
Jan24%29°C1.5 m
Feb16%29°C1.6 m
Mar44%29°C1.4 m
Apr74%29°C1.2 m
May84%29°C1.1 m
Jun99%30°C0.9 m
Jul99%30°C0.9 m
Aug95%30°C0.8 m
Sep99%30°C0.8 m
Oct89%30°C1.0 m
Nov87%30°C1.1 m
Dec49%29°C1.4 m

% = share of sampled days scoring in the favorable band, median across 18 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 Micronesia & western Pacific 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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