Best Time to Dive North Shore / northern barrier reef
Across 1 North Shore / northern barrier reef, Bermuda dive sites with multi-year conditions history, July historically shows the most favorable days — 75% 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 | 9% | 21°C | 3.0 m |
| Feb | 2% | 20°C | 3.0 m |
| Mar | 2% | 19°C | 3.0 m |
| Apr | 23% | 20°C | 2.1 m |
| May | 39% | 22°C | 1.7 m |
| Jun | 63% | 25°C | 1.4 m |
| Jul | 75% | 28°C | 1.2 m |
| Aug | 57% | 29°C | 1.7 m |
| Sep | 37% | 28°C | 2.0 m |
| Oct | 8% | 26°C | 2.8 m |
| Nov | 11% | 24°C | 2.7 m |
| Dec | 2% | 22°C | 2.8 m |
% = share of sampled days scoring in the favorable band, median across 1 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 US & Canada — Atlantic coast region — not site-specific promises.
- Scalloped hammerheadAugust
- Great white sharkAug–Sep
- Giant oceanic manta rayJul–Sep
- OrcaMay–Aug
- Humpback whaleJun–Aug
Bars are Jan–Dec — months when sightings historically concentrate (GBIF occurrence records). Wildlife is never guaranteed.
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