When To Go · Destination Guide
Saint Martin and Sint Maarten
One island, two marine rulebooks, reefs and historic wrecks.
When To Go · Destination Guide
One island, two marine rulebooks, reefs and historic wrecks.
When to go
General travel: January-April is the best-supported drier window from Meteo-France; May and December are transitional.
Best overall window
Meteo-France identifies January-April as the local drier season. The Caribbean stays warm; weather can still bring wind or north swell.
Outside that window
June-November is the official Atlantic hurricane season and broadly the local wet season. Rain, humidity, cyclone alerts and marine schedule disruption are possible.
Start with the overall answer, then switch only when scuba, freedive, snorkel, or topside timing changes the trip in a meaningful way.
The overall row stays visible so you can compare it against the currently selected scope.
| Scope | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall | Overall - Jan: Best | Overall - Feb: Best | Overall - Mar: Best | Overall - Apr: Best | Overall - May: Good | Overall - Jun: Tradeoffs | Overall - Jul: Tradeoffs | Overall - Aug: Tradeoffs | Overall - Sep: Tradeoffs | Overall - Oct: Tradeoffs | Overall - Nov: Tradeoffs | Overall - Dec: Good |
These do not replace the overall planner. Use them only if a specific animal or event is driving your trip dates.
Sea turtle nesting and hatchling protection
Best for Snorkel, Topside
Mar to Dec
French reserve monitoring documents a broad March-November nesting period; the Dutch Nature Foundation reports most nesting May-December and occasional activity outside those months.
SXM Heineken Regatta atmosphere
Best for Topside
Mar
The island tourism organization lists an annual early-March sailing event.
Built from climate references, access rules, and destination operators. Wildlife timing and route flexibility can shift year to year.