Best time to visit St Martin
The best time to visit St Martin is during February and March, but anytime during the dry season from December through April is good, with temperatures averaging a high of 29°C (84°F), and a low of 23°C (73°F).
St Martin weather
St Martin has a hot tropical climate, with year-round sunshine and occasional brief rain showers. Sea breezes relieve some of the daytime heat.
There is a slightly cooler, dry season from December to March and a hotter, muggy season from June to October.
Here are the average temperatures of Marigot, the capital.
What is the best month to visit St Martin?
February and March are the best months to visit St Martin, since this is the driest time of year, with warm, sunny weather, mainly clear skies and good conditions for swimming.
January and April are also acceptable months, although with an increase in rainfall.
Which is the hottest month in St Martin?
The hottest month in St Martin is usually August, with an average high of 32°C (89°F), with high heat and humidity, and a low of 26°C (78°F).
The hot season lasts from mid-June to late-October, with an average daily high temperature above 31°C (87°F).
Which is the coldest month in St Martin?
The coldest month in St Martin is February, with an average high temperature of 29°C (84°F) and an average low temperature of 23°C (73°F).
The cool season lasts from mid-December through March, with an average daily high temperature below 29°C (84°F).
Which is the sunniest month in St Martin?
The sunniest month of the year in St Martin is usually January, with eight hours of bright sunshine per day: that's an average of 75% of daylight hours.
What is the humidity in St Martin?
St Martin experiences little seasonal variation in perceived humidity, with approximate average relative humidity calculated at between 70% – 74% over the course of the year. Typically, it's humid all year round.
What do the humidity conditions feel like in St Martin?
We derive the humidity comfort level – what conditions feel like – from the dew point temperature, which measures moisture content in the atmosphere: a higher dew point feels more humid, while a lower dew point feels drier.
Meteorologists agree that dew point temperature is a more consistant indication of 'absolute humidity' than relative humidity, which fluctuates with temperature.
The average annual dew point in St Martin is 22°C (71°F), and varies over the course of the year from humid at 20°C (68°F) to muggy at 24°C (75°F).
The more humid time of year lasts from April through to mid-February, when you can expect the comfort level to be muggy at least 85% of the time.
The months with the most muggy days in St Martin are May through December, when almost every day in each month is muggy or worse.
The month with the fewest number of muggy days is February, with around 25 days that are muggy.
When is the sea warmest in St Martin?
The sea is usually at its warmest in St Martin in September when the water temperature reaches 29°C (84°F), which is pleasant for swimming.
The sea is warm enough for swimming all year-round in St Martin.
Which month has the most rain in St Martin?
November is usually the wettest month in St Martin with 154mm (6in) of rainfall on average, distributed across five days.
The wet season lasts from May through November, with a greater than 12% chance of a given day being a wet day, although rainfall is often limited to periodic showers and thunderstorms in the late afternoon or evening.
August to November sees the most rainfall.
The dry season lasts from December through April.
Which is the windiest month in St Martin?
The windiest month of the year in St Martin is July, with an average hourly wind speed of 26 kilometres per hour (14 knots; 16mph).
The windy part of the year lasts from June through August, with average wind speeds of more than 23 kilometres per hour (12 knots; 14mph).
The less-windy time of year lasts from September through May. The calmest month of the year in St Martin is October, with an average hourly wind speed of 20 kilometres per hour (10 knots; 12mph).
The predominant average hourly wind direction in St Martin is from the east throughout the year.
Is there a risk of a tropical storm in St Martin?
The official hurricane season lasts from June to November, when there is the danger of tropical storms and hurricanes, with greater probability from August to October.
The likelihood of a tropical storm in St Martin is greatest in September, with a 4% risk.
St Martin Weather Averages
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Average high temperature (°C) | |||||||||||
| 29 | 29 | 29 | 30 | 30 | 31 | 31 | 32 | 32 | 31 | 30 | 29 |
| Average low temperature (°C) | |||||||||||
| 23 | 23 | 23 | 24 | 25 | 26 | 26 | 26 | 26 | 26 | 25 | 24 |
| Average daily sunshine (hrs) | |||||||||||
| 8 | 8 | 9 | 9 | 8 | 8 | 8 | 9 | 8 | 8 | 8 | 8 |
| Average daily daylight (hrs) | |||||||||||
| 11 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 11 | 11 |
| Comfort level – heat | |||||||||||
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| Comfort level – humidity (#muggy days) | |||||||||||
| 28 | 25 | 27 | 28 | 31 | 30 | 31 | 31 | 30 | 31 | 29 | 29 |
| Average dew point temperature (°C) | |||||||||||
| 20 | 20 | 20 | 21 | 22 | 23 | 24 | 24 | 24 | 23 | 22 | 21 |
| Average relative humidity (%) | |||||||||||
| 73 | 72 | 70 | 72 | 74 | 73 | 74 | 74 | 74 | 75 | 74 | 74 |
| UV Index (max) | |||||||||||
| 8 | 10 | 11+ | 11+ | 11+ | 11+ | 11+ | 11+ | 11+ | 10 | 9 | 7 |
| Average days of rainfall (≥1mm) | |||||||||||
| 1 | 1 | 1 | 2 | 5 | 3 | 4 | 5 | 6 | 6 | 5 | 3 |
| Average monthly rainfall (mm) | |||||||||||
| 67 | 52 | 68 | 64 | 84 | 65 | 98 | 97 | 114 | 146 | 154 | 92 |
| Average wind speed (km/h) | |||||||||||
| 25 | 25 | 23 | 22 | 22 | 25 | 26 | 24 | 21 | 20 | 22 | 25 |
| Average sea temperature (°C) | |||||||||||
| 26 | 26 | 26 | 27 | 27 | 28 | 28 | 29 | 29 | 29 | 28 | 27 |
| Marigot, St Martin | |||||||||||
Holiday seasons
High Season: St Martin is a year-round destination. The high season runs from mid-December to mid-April, when you can expect the highest hotel prices.
Low season: In summer, from mid-April to mid-December, when most hotels slash their winter rates by up to 50 per cent.
Source: Meteorological data for St Martin is based on weather statistics gathered for the 30-year period 1991 to 2020 by the Royal Netherlands Meteorological Institute (KNMI) from the closest weather station: Princess Juliana International Airport (SXM), located 5km (3mi) southwest of the capital, Marigot. Additional climate data is sourced from the United States National Oceanic and Atmospheric Administration (NOAA).
Advice on the best time to visit a particular destination is based on average local weather statistics, when the weather conditions are generally better than at other times of the year. We consider high and low temperatures, risk of rain (and thunderstorms, etc.), amount of sunshine and sea temperature. For general outdoor activities we favour clear, rainless days with a temperature range between 18°C (64°F) and 27°C (80°F); and for hot-weather activities we favour clear, rainless days with a temperature range between 24°C (75°F) and 32°C (89°F). Often, the best times to visit correspond to high season and therefore involve higher prices.
Latest update: Best time to visit St Martin: 16 May, 2024
Disclaimer: The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data and conditions at any given location and time are unpredictable and variable. We assume no responsibility and can not be held legally responsible for any decisions made on the basis of the information presented on this site.
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