Real-Time Weather
Accurate forecasts, marine conditions and environmental alerts for your paradise getaway
Sunny
18 km/h
East
72%
27°C
Calm to slightly rough
8
Very High
Sunrise
06:12
Sunset
17:48
Marine Conditions
Real-time water temperature, sea state and practical tips for swimming and water activities.
27°C
Ideal for swimming
Calm to slightly rough
Waves: 0.5 - 1m
Hour by Hour Weather
Tuesday, January 6
7-Day Weather Forecast for St Barts
Plan your activities in St Barts with our detailed 7-day weather forecast.
Seasons in Saint Barthelemy
Saint Barth enjoys a tropical climate with two main seasons. Discover the weather characteristics of each period to plan your ideal stay.
High Season
December to April
Optimal Conditions
The most popular period with dry, sunny weather and pleasant temperatures between 24°C and 28°C. Constant trade winds, calm sea, and blue sky.
- Low humidity
- Little rain
- Calm sea
Low Season
May to November
Tropical Climate
Higher temperatures (27°C-32°C) with increased humidity. Brief and refreshing tropical showers, usually in the late afternoon.
- High humidity
- Passing showers
- Fewer tourists
Hurricane Season
June to November
Vigilance & Prevention
Monitoring period with increased risk of tropical cyclones. Saint Barth is well prepared with solid infrastructure.
- Weather monitoring
- Solid infrastructure
- History & prevention
Month by Month Weather
The weather varies significantly throughout the year. Anticipate climate conditions, natural phenomena, and sea conditions to choose the ideal time for your visit.
January
Typical weather conditions
26°C - Temperate
Low
None
Moderate
Drier Island
Low
General trends, not exact forecasts
Weather by Neighborhood
Saint Barth has distinct microclimates. It can be sunny in Gustavia while it rains in Lorient. Choose your neighborhood with full knowledge of the conditions.
Actual Sunshine Hours
Each neighborhood indicates when the sun is actually visible, taking into account hills and terrain that may block sunlight.
Gustavia
The main port, magnificent sunsets
St-Jean
Lively beach near the airport
Flamands
Large white sand beach
Colombier
Beach accessible only on foot or by boat
Lurin
Panoramic sea view
Lorient
Authentic village, sunrises
Mosquitoes
Risk based on humidity and standing water
Sargassum
East coast more exposed (March-Sept)
Humidity
Based on altitude and wind exposure
Sea Temperature in Saint Barth
The turquoise waters of Saint Barthelemy remain pleasant year-round with temperatures ranging between 26°C and 29°C. Discover the best times for swimming based on your preferences.
January to March
The coolest period, ideal for those who prefer refreshing water. Perfect after a day in the sun.
April, May & December
Ideal temperature for most swimmers. Optimal comfort for swimming and snorkeling.
June to November
Very warm sea, almost like a bath. Ideal for long snorkeling sessions and families with children.
Heated vs Unheated Pools
🔥Heated Pools
Recommended from December to March to maintain a pleasant temperature (28°C-30°C). Some luxury villas offer this additional comfort.
Advantage: Comfortable swimming even on windy or slightly cool days.
🌊Unheated Pools
Perfectly suitable from April to November. The water stays naturally warm thanks to the tropical climate and generous sunshine of Saint Barth.
Advantage: Welcome refreshment during hot summer days.
Beach Weather
Each beach has its own unique characteristics. Wind and swell exposure varies from one beach to another. Discover the features of each beach for an informed choice.
St-Jean
Flamands
Colombier
Saline
Gouverneur
Grand Cul-de-Sac
Anse du Gouverneur
Anse des Cayes
Lorient
Toiny
Corossol
Marigot
Sun Orientation & Sunshine
Your villa or favorite beach's orientation greatly influences your experience. Discover where to enjoy the most beautiful sunrises and sunsets, and which areas remain in shade depending on the season.
To enjoy the most beautiful sunrises, favor beaches and neighborhoods facing East such as Lorient, Marigot, and Grand Cul-de-Sac. First light appears between 6am and 6:30am.
Tip: East-facing villas benefit from exceptional morning light and stay cooler in the afternoon.
The most spectacular sunsets occur on the West side: Colombier, Flamands, and Gustavia. Sunset is between 6pm and 6:30pm depending on the season.
Tip: West-facing terraces are perfect for cocktails with unforgettable sunset views.
Shadow Zones by Season
High Season (Dec-April)
The sun is lower on the horizon. North-facing slopes and valleys like Colombier benefit from natural shade in late afternoon.
Low Season (May-Nov)
The sun is at its peak. Shade is rare at midday. Favor wooded areas like Lorient or covered terraces.
How to get to Saint Barthelemy: plane or boat?
Two options are available to reach the island: by air for a spectacular flight, or by sea for a peaceful crossing. Discover the advantages of each mode of transport and how the weather can affect your trip.
Getting There by Plane
Gustaf III Airport offers a spectacular approach through the hills. Daily flights from Saint Martin.
- 20 minutes from Saint Martin
- Unforgettable panoramic views
- International connections
Getting There by Boat
Several daily ferry services provide the crossing from Saint Martin. A smooth arrival by sea.
- 45-minute crossing
- Affordable rates
- Views of surrounding islands
Noise Pollution in Saint-Barthelemy
Understand the different sources of noise disturbances on the island throughout the year to choose your neighborhood and plan your stay with peace of mind.
Road Pollution
Vehicles & Traffic
During high season, vehicle noise increases significantly with the influx of tourists. Scooters and quads generate the most disturbances, especially in Gustavia and St-Jean.
- • High season traffic jams
- • Noisy scooters
- ✓ Quiet in low season
Construction Pollution
Building & Renovation
Construction work is concentrated in low season when tourists are fewer. Villas and infrastructure are renovated during this period.
- ✓ Quiet in high season
- • Active in low season
- • Morning hours 7am-5pm
Air Traffic Pollution
Airplanes & Helicopters
St-Jean airport generates noise disturbances depending on the season. Neighborhoods near the runway are most impacted, especially during tourist high season.
- • Many flights in high season
- • St-Jean most exposed
- ✓ Distant neighborhoods quiet
Hurricane season: should you worry?
The period from June to November corresponds to the hurricane season in the Caribbean. Contrary to popular belief, this period offers unique advantages and should not necessarily discourage you from visiting Saint Barthelemy.
Attractive rates and tranquility
Enjoy reduced prices, deserted beaches, and an island without traffic jams during this less crowded period.
Seasonal closures but maintained activity
Some restaurants and hotels close for maintenance, but many establishments and rentals remain open.
Sargassum in Saint Barthelemy
Sargassum are floating brown algae that sometimes arrive on the shores of Saint Barth, mainly between February and October. Discover the affected areas, risk periods, and actions taken by the Collectivity.
Current Level: Low
Saint Barth beaches are currently minimally impacted by sargassum. Active daily monitoring in place.
Sensitive Areas
Grand Cul-de-Sac, Lorient, and St-Jean are the most exposed according to currents. Toiny and Saline can also be affected.
Risk Periods
Arrivals are more frequent between March and August, with peaks in April-May depending on the year.
The Collectivity of Saint Barthelemy deploys daily cleaning teams, floating barriers in certain bays, and a monitoring system to maintain the quality of our beaches.
Trade Winds: The Beneficial Winds of St Barts
Discover how these steady easterly winds shape the island's ideal climate and create perfect conditions for water activities year-round.
Current Winds
22 km/h
East-Northeast - Moderate Force
Trade winds blow regularly, bringing a refreshing breeze that reduces the perceived temperature by 3 to 5 degrees. Ideal conditions for all activities.
Benefits of Trade Winds
- Natural Cooling
Pleasant tropical climate year-round
- Perfect Nautical Conditions
Optimal for sailing, kitesurfing, windsurfing
- Exceptional Air Quality
Constant renewal, fewer mosquitoes
Average Annual Strength
Of Time from East-Northeast
Present Year-Round
Flora & Fauna of Saint Barthelemy
Discover the exceptional biodiversity of St Barts: sea turtles, humpback whales, dolphins, tropical birds, iguanas, edible fish and lush flora. Each season offers unique observation opportunities.
Sea Turtles
Observe green and hawksbill turtles
Humpback Whales
Winter migration (January-April)
Dolphins
Present year-round around the island
Tropical Birds
Pelicans, frigatebirds and migratory birds
Trees & Plants
Tropical flora: palms, bougainvillea, acacias
Insects
Butterflies, dragonflies and tropical insects
Land Turtles
Land species present on the island
Island Animals
Goats, iguanas, lizards and other species
Edible Fish
Tuna, wahoo, mahi-mahi and other local species
Mosquitoes in Saint Barthelemy
Everything you need to know about tropical mosquitoes: species present, risk periods, affected areas, and the best protection methods to enjoy your stay peacefully
Risk Periods
Present year-round, but more active during the rainy season (June-November). Peak activity in September-October.
Sensitive Areas
More prevalent in humid areas, mangroves, and dense vegetation. Windy hilltop neighborhoods are less affected.
Effective Protection
Tropical repellents, mosquito nets, fans, and long clothing at dusk. The local government conducts regular control measures.
Limited but Important Health Risks
Saint Barthelemy benefits from strict health monitoring. Cases of dengue, chikungunya, and zika are rare but possible. The best protection remains preventing mosquito bites.
Events in Saint-Barth: An Exceptional Cultural and Sporting Calendar
Prestigious regattas, cultural festivals, gastronomic events, and local celebrations enliven the island throughout the year. Discover the unmissable events that make Saint-Barthelemy so charming.
The most prestigious regatta in the Caribbean featuring the world's finest sailing yachts
Cinema and gatherings under the stars, open-air screenings
Colorful parades and music in the streets of Gustavia and neighborhoods
Literary gatherings with international authors and book signing sessions
Exceptional gastronomy with Michelin-starred chefs from around the world
Authentic local celebrations in the various neighborhoods of the island
Parking in Saint-Barthelemy
Parking in Saint-Barth varies considerably by season and area. Discover free parking, paid parking, and valet services to plan your travel with peace of mind.
Free Parking
Beaches & Public Areas
22 free public parking lots near beaches and in neighborhoods. In high season, early arrival recommended.
- ✓ ~280 free spaces
- ✓ Near beaches
- • Full in high season
Paid Parking
Gustavia Center
Paid parking in Gustavia with regular turnover. Rates from 2 euros/hour for guaranteed downtown access.
- ✓ Guaranteed availability
- ✓ Downtown
- ✓ Rates 2-15 euros
Valet Service
Restaurants & Hotels
Valet services at upscale restaurants and hotels. Absolute comfort without searching for a parking spot.
- ✓ Zero stress
- ✓ Premium service
- ✓ 30-50 euros or included
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