Best Time to Dive Switzerland
Across 330 Switzerland dive sites with multi-year conditions history, February, May and July historically show the most favorable days — 100% of sampled days in the good band. The next-highest months are March (99%), April (99%) and June (99%). December historically shows the fewest favorable days (96% of sampled days). 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 Switzerland?
| Month | Historically favorable days | Water temp | Typical seas |
|---|---|---|---|
| Jan | 98% | — | — |
| Feb | 100% | — | — |
| Mar | 99% | — | — |
| Apr | 99% | — | — |
| May | 100% | — | — |
| Jun | 99% | — | — |
| Jul | 100% | — | — |
| Aug | 98% | — | — |
| Sep | 99% | — | — |
| Oct | 98% | — | — |
| Nov | 97% | — | — |
| Dec | 96% | — | — |
% = share of sampled days scoring in the favorable band, median across 330 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.
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