Wind Days = % of days with 12–35 knot average wind speed (ideal kiting conditions). Based on 4 years of historical weather data.
Partially sheltered coastline with moderate, varied conditions
Isaac Bay is a north-facing bay on the eastern coast of St. Croix in the US Virgin Islands. The spot features a sandy/shallow entrance with prominent reef structure visible in the turquoise shallows, transitioning to deeper open water offshore. The bay configuration provides some wind acceleration and sheltering from extreme swell, though fetch is limited by the Caribbean geography. Wind conditions are moderate and unreliable at 10.8 knots average with only 35.5% reliability, suggesting this spot works best during seasonal wind events. Side-shore winds from the northwest (315°) provide the safest riding configuration, keeping kiters away from shore hazards while maintaining control. Average wave heights of 1.32m indicate small, chop-driven conditions rather than organized swells. This spot suits intermediate riders comfortable navigating shallow reef areas and variable wind. The bay's protected nature means reduced wave size but also calmer water for learning wave technique. Primary considerations include avoiding submerged reef hazards in turquoise zones, timing sessions around wind windows, and being aware of potential current flow at the bay entrance during tide changes.
Real-time wind conditions and 10-day forecast powered by ECMWF
Historical ocean data for wetsuit planning & water type
Challenging chop, experienced riders
Wind reliability by time of day (average across all months)
Months with 50%+ wind days (12–35 knots)
Historical averages based on 4 years of data
| Month | Wind Days | Avg Wind | Temp | Best Time |
|---|---|---|---|---|
| Jan | 33% | 11kts | 26°feels 28° | PM |
| Feb | 47% | 11kts | 26°feels 27° | PM |
| Mar | 38% | 11kts | 27°feels 29° |
Plan your wetsuit and know what to expect in the water
Search for the best dates based on historical wind data.
Find Best Dates| PM |
| Apr | 37% | 11kts | 27°feels 29° | AM |
| May | 30% | 11kts | 28°feels 31° | AM |
| Jun | 53% | 12kts | 28°feels 31° | PM |
| Jul | 65% | 13kts | 29°feels 32° | AM |
| Aug | 38% | 11kts | 29°feels 33° | PM |
| Sep | 14% | 9kts | 29°feels 33° | AM |
| Oct | 14% | 9kts | 29°feels 33° | AM |
| Nov | 25% | 10kts | 28°feels 31° | PM |
| Dec | 32% | 11kts | 27°feels 29° | AM |