Best Time to Dive São Paulo
Across 2 São Paulo dive sites with multi-year conditions history, February historically shows the most favorable days — 64% of sampled days in the good band. October historically shows the fewest favorable days (13% of sampled days). Average water temperature in the sample runs from about 21°C in August to 27°C in February. Typical seas range from 1.5 m to 2.2 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.
Month by month
| Month | Historically favorable days | Water temp | Typical seas |
|---|---|---|---|
| Jan | 57% | 26°C | 1.5 m |
| Feb | 64% | 27°C | 1.5 m |
| Mar | 57% | 26°C | 1.6 m |
| Apr | 30% | 24°C | 1.9 m |
| May | 27% | 24°C | 1.9 m |
| Jun | 44% | 22°C | 1.8 m |
| Jul | 35% | 21°C | 1.9 m |
| Aug | 14% | 21°C | 2.1 m |
| Sep | 13% | 22°C | 2.2 m |
| Oct | 13% | 21°C | 2.0 m |
| Nov | 32% | 23°C | 1.9 m |
| Dec | 44% | 25°C | 1.7 m |
% = share of sampled days scoring in the favorable band, median across 2 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 Brazil & South Atlantic region — not site-specific promises.
- Green sea turtleJuly
- Humpback whaleJun–Sep
Bars are Jan–Dec — months when sightings historically concentrate (GBIF occurrence records). Wildlife is never guaranteed.
Diving São Paulo 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