Best time to visit Saint Barthelemy

The best time to visit Saint Barthelemy is from January to April during the winter dry season, when you can expect cooler daytime temperatures that average 26°C (78°F) with little to no rainfall.

The driest months are February and March.

You can expect sunny days throughout the year, even during the summer wet season, which extends from May to November. Temperatures increase to an average high of 31°C (87°F).

St. Barts weather

St. Barts (also known as Saint Barth or Saint Barthélemy) has a hot and humid 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 April and a hot and humid season from May to November. September through November are the wettest months.

Here are the average temperatures of the capital, Gustavia.

What is the best month to visit St. Barts?
February and March are the best months to visit St. Barts, 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. Barts?
The hottest month in St. Barts is usually September, 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 June through to late-October, with an average daily high temperature above 31°C (87°F).

Which is the coldest month in St. Barts?
The coldest month in St. Barts 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 to mid-March, with an average daily high temperature below 29°C (84°F).

Which is the sunniest month in St. Barts?
The sunniest month of the year in St. Barts 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 Barts?
St Barts 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 Barts?
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 Barts 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 in St. Barts lasts from late-March through to mid-February, when you can expect the comfort level to be muggy at least 90% of the time.

When is the sea warmest in St. Barts?
The sea is usually at its warmest in St. Barts 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. Barts.

Which month has the most rain in St. Barts?
October is usually the wettest month in St. Barts with 135mm (5in) of rainfall on average. There are normally 12 days in October with some rainfall.

The wet season lasts from May through November, with a greater than 13% 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.

The drier season lasts from December through April. The months with the least rain in St. Barts are February and March.

Which is the windiest month in St. Barts?
The windiest month of the year in St. Barts 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. Barts is October, with an average hourly wind speed of 20 kilometres per hour (11 knots; 13mph).

The predominant average hourly wind direction in St. Barts is from the east throughout the year.

Is there a risk of a tropical storm in St. Barts?
The likelihood of a tropical storm in St. Barts is greatest during the wet season with a risk of around 4% in September.

June through November marks the official hurricane season in the West Indies.

St. Barts 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
Moderately hot icon Moderately hot icon Moderately hot icon High heat & humidity icon High heat & humidity icon High heat & humidity icon High heat & humidity icon High heat & humidity icon High heat & humidity icon High heat & humidity iconModerately hot icon Moderately hot icon
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 8 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
Gustavia, St Barts

Holiday seasons

High Season: Mid-December to mid-April; Low season: May to November.

Source: Meteorological data for St Barts is based on weather statistics gathered for the 30-year period 1992 to 2021 by Météo-France at the closest weather station: Gustaf III Airport (SBH), located 2km (1.2mi) northeast of the capital, Gustavia. 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 Barts: 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.