Best Time to Dive New Caledonia
Across 7 New Caledonia dive sites with multi-year conditions history, January historically shows the most favorable days — 78% of sampled days in the good band. The next-highest months are December (72%), November (68%) and October (56%). July historically shows the fewest favorable days (34% of sampled days). Average water temperature in the sample runs from about 23°C in August to 28°C in January. Typical seas range from 1.4 m to 1.9 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 New Caledonia?
| Month | Historically favorable days | Water temp | Typical seas |
|---|---|---|---|
| Jan | 78% | 28°C | 1.4 m |
| Feb | 42% | 27°C | 1.9 m |
| Mar | 49% | 27°C | 1.7 m |
| Apr | 46% | 27°C | 1.8 m |
| May | 42% | 25°C | 1.9 m |
| Jun | 56% | 24°C | 1.6 m |
| Jul | 34% | 23°C | 1.8 m |
| Aug | 53% | 23°C | 1.7 m |
| Sep | 51% | 23°C | 1.7 m |
| Oct | 56% | 24°C | 1.6 m |
| Nov | 68% | 25°C | 1.4 m |
| Dec | 72% | 27°C | 1.4 m |
% = share of sampled days scoring in the favorable band, median across 7 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 Micronesia & western Pacific region — not site-specific promises.
- Whale sharkDec–Jan
- Scalloped hammerheadFeb–Mar
- Humpback whaleJul–Oct
- Reef manta rayJun–Sep
- Tiger sharkyear-round
- Bull sharkyear-round
- Green sea turtleyear-round
Bars are Jan–Dec — months when sightings historically concentrate (GBIF occurrence records). Wildlife is never guaranteed.
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