Best time to visit Sint Maarten: drier and wetter seasons
The best time to visit Sint Maarten for comparatively drier conditions is December to May. KNMI's climate report published in 2025 describes June to November as the wetter season. These are seasonal patterns rather than a promise for a particular beach day. Use them to choose a broad travel window, then give individual excursions their own weather decision closer to departure.
For a trip built around beaches and boat outings, the practical distinction is between a climate expectation and the conditions on the day. For St. Maarten weather decisions, match the seasonal rainfall pattern with the current forecast for your crossing or snorkelling outing. Leave space to rearrange activities and avoid tying an important boat outing to an onward connection. The beach guide helps with locations, while the arrival guide covers the separate transport arrangements.
Annual means and what they tell you
KNMI's 2025 report gives a mean annual temperature of 27.3 °C. Its July to September mean is 28.7 °C, while January and February have a mean of 25.6 °C. Each figure is a mean temperature for the stated period. None is a daytime high or an overnight low, and none describes the temperature you will encounter at a particular hour.
The same report describes annual rainfall of about 1,112 mm with a 1991 to 2020 normal reference. An annual rainfall figure helps put the wetter and drier seasons in context; it does not divide the year into a dependable number of wet days. For your itinerary, compare the activities you want to do and how readily you can move them. A climate average is useful at the planning stage, while a local forecast is useful when deciding what to do that morning.
A boat trip to Anguilla
This boat trip includes snorkeling gear; plan around weather and bring a passport.
Hand-picked tours, booked through Viator. Prices are indicative starting prices in US dollars (as of November 2026). Tap a tour for live availability and the current price in your currency.
A weather-dependent day on Anguilla
The excursion departs from Cole Bay on St. Maarten and travels to Anguilla, with a guide, lunch, drinks and snorkelling equipment. All travellers need passports.
Hurricane season and official warnings
The Meteorological Department's notice dated 22 May 2026 identifies the 2026 Atlantic hurricane season as 1 June to 30 November 2026, with the climatic concentration of activity in August to October. This seasonal notice applies through 30 November 2026. It describes the season and should not be read as a current storm alert or a prediction of conditions for your exact travel dates.
Use the Meteorological Department's current official warnings when making decisions during a stay. A broad seasonal label does not establish that a beach, road or boat route is suitable for use. Keep transport and activity decisions connected to the local instructions for the day. Equally, a date outside the wetter season should not replace checking conditions before heading onto the water.
If your itinerary includes a neighbouring island, consider both the crossing and the return journey. Weather can change the shape of the day even when the original plan appears straightforward. Read the cancellation and rescheduling terms for the trip you choose, and allow flexibility around a departure flight or ferry connection. The Anguilla day-trip guide explains the distinction between organised outings and travelling independently by ferry.
Weather-dependent boat outings and land alternatives
The Anguilla excursion featured here starts at Welfare Road in Cole Bay, in the Simpson Bay area of St. Maarten. It includes a local guide, an open bar, lunch of freshly made sandwiches, chips and fruit, and use of snorkelling equipment. All travellers require passports because the outing goes to Anguilla. Treat it as an international boat day with its own departure arrangements, rather than as a local beach transfer.
Its operation depends on weather; use the current sailing arrangements alongside your chosen travel month. Choose a day with room around it in your itinerary, and keep arrival at the meeting point separate from the crossing itself. The catamaran guide covers local sailing options and their departure points. An included lunch or drinks package describes the onboard service, not protection from a change in sea conditions.
For a flexible land plan, consider the town and boardwalk at Philipsburg or a visit to Marigot's town and waterfront. Compare guided island outings if you want organised road transport. These are ideas to weigh against the day's conditions, not guaranteed substitutes during severe weather. Strong rain and official warnings can affect land plans too, so keep the alternative proportionate to the situation rather than filling every available hour.
Beach and snorkelling plans within your travel window
Orient Bay, Maho and Pinel involve different settings and access decisions. Pinel requires a boat journey from Cul-de-Sac; an outing there therefore includes a transport step that a town walk does not. For snorkelling, leave marine life undisturbed and avoid touching coral. Treat animal sightings as a possibility and allow the snorkelling stop to follow the conditions.
At Maho, aircraft watching introduces a separate safety issue from the weather. Jetblast can be life-threatening, and holding onto the airport fence is dangerous. Keep clear of the jetblast hazard even under a clear sky. Plan beach visits around local safety instructions and your ability to change the day, with the season serving as background rather than as a blanket assurance.
Questions about St. Maarten weather
Which months are comparatively drier?
KNMI's 2025 report describes December to May as comparatively drier and June to November as wetter. Rain remains possible during the drier season.
Is 27.3 °C the average daytime high?
It is the mean annual temperature in the KNMI report. It should not be read as a daily maximum, an overnight low or the forecast for a particular day.
Does the hurricane-season notice mean a storm is approaching?
The notice dated 22 May 2026 gives the seasonal period through 30 November 2026. For an immediate decision, use current official warnings rather than the seasonal notice.
Do I need a passport for the featured boat day?
Yes. The excursion starts on St. Maarten and travels to Anguilla, and requires passports for all travellers. Its sailing remains dependent on weather.