Best Time to Dive Mohéli Marine Park
Across 2 Mohéli Marine Park dive sites with multi-year conditions history, December historically shows the most favorable days — 95% of sampled days in the good band. July historically shows the fewest favorable days (44% of sampled days). Average water temperature in the sample runs from about 26°C in August to 30°C in April. Typical seas range from 1.0 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.
Month by month
| Month | Historically favorable days | Water temp | Typical seas |
|---|---|---|---|
| Jan | 63% | 30°C | 1.3 m |
| Feb | 88% | 30°C | 1.0 m |
| Mar | 83% | 30°C | 1.1 m |
| Apr | 76% | 30°C | 1.3 m |
| May | 45% | 29°C | 1.6 m |
| Jun | 46% | 28°C | 1.6 m |
| Jul | 44% | 27°C | 1.6 m |
| Aug | 58% | 26°C | 1.6 m |
| Sep | 73% | 27°C | 1.3 m |
| Oct | 80% | 28°C | 1.2 m |
| Nov | 94% | 29°C | 1.0 m |
| Dec | 95% | 30°C | 1.0 m |
% = share of sampled days scoring in the favorable band, median across 2 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 East Africa & Mozambique Channel region — not site-specific promises.
- Humpback whaleSeptember
- Green sea turtleApril
- Bull sharkDec–May
- Scalloped hammerheadAug–Apr
- Tiger sharkyear-round
Bars are Jan–Dec — months when sightings historically concentrate (GBIF occurrence records). Wildlife is never guaranteed.
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