Best Time to Dive Cocos Island
Across 12 Cocos Island dive sites with multi-year conditions history, March historically shows the most favorable days — 87% of sampled days in the good band.
Computed from our own conditions climatology — measured history, not brochure copy. Historical patterns, never a forecast or a guarantee.
Month by month
| Month | Historically favorable days | Water temp | Typical seas |
|---|---|---|---|
| Jan | 75% | 28°C | 1.5 m |
| Feb | 87% | 30°C | 1.4 m |
| Mar | 87% | 30°C | 1.4 m |
| Apr | 73% | 30°C | 1.5 m |
| May | 30% | 29°C | 1.8 m |
| Jun | 24% | 29°C | 1.8 m |
| Jul | 44% | 29°C | 1.7 m |
| Aug | 39% | 28°C | 1.7 m |
| Sep | 24% | 28°C | 1.8 m |
| Oct | 20% | 28°C | 1.8 m |
| Nov | 32% | 27°C | 1.8 m |
| Dec | 73% | 28°C | 1.5 m |
% = share of sampled days scoring in the favorable band, median across 12 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 Galápagos & eastern Pacific region — not site-specific promises.
- Giant oceanic manta raySep–Oct
- Green sea turtleFeb–Mar
- Whale sharkSep–Nov
- Scalloped hammerheadNov–Dec
- Humpback whaleJul–Sep
Bars are Jan–Dec — months when sightings historically concentrate (GBIF occurrence records). Wildlife is never guaranteed.
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