Best Time to Dive Khanh Hoa (Nha Trang)
Across 5 Khanh Hoa (Nha Trang) dive sites with multi-year conditions history, May historically shows the most favorable days — 91% of sampled days in the good band. The next-highest months are April (90%), September (79%) and June (77%). December historically shows the fewest favorable days (8% of sampled days). Average water temperature in the sample runs from about 25°C in January to 30°C in September. Typical seas range from 0.8 m to 2.5 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 Khanh Hoa (Nha Trang)?
| Month | Historically favorable days | Water temp | Typical seas |
|---|---|---|---|
| Jan | 9% | 25°C | 2.5 m |
| Feb | 36% | 25°C | 1.9 m |
| Mar | 57% | 26°C | 1.4 m |
| Apr | 90% | 28°C | 0.8 m |
| May | 91% | 30°C | 0.8 m |
| Jun | 77% | 29°C | 0.8 m |
| Jul | 54% | 28°C | 1.0 m |
| Aug | 70% | 27°C | 0.9 m |
| Sep | 79% | 30°C | 0.9 m |
| Oct | 65% | 29°C | 1.2 m |
| Nov | 26% | 27°C | 2.2 m |
| Dec | 8% | 26°C | 2.4 m |
% = share of sampled days scoring in the favorable band, median across 5 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.
Diving Khanh Hoa (Nha Trang) soon? Browse its dive sites with auto-updating 7-day condition windows — free, no account needed.
Choosing between destinations? Compare them month by month with the Trip PlannerPro