St Barts Weather in June – Climate, Sea, Wind & Travel Conditions
June in Saint Barthelemy officially marks the beginning of hurricane season (June 1st) with characteristic humid heat. Temperatures climb between 25C (77F) and 31C (88F), the sea reaches 28C (82F), and the island becomes very quiet with low tourist attendance.
Why choose June? Rates are among the lowest of the year (-50 to 60% on accommodations), offering accessible luxury. Saharan dust haze may appear, creating spectacular sunsets. It's the perfect month for those who handle tropical heat well and seek authenticity.
Vous souhaitez venir en june à Saint-Barth ?
Découvrez les hébergements disponibles au mois de june.
Recevez une sélection personnalisée d'hébergements, de bons plans voiture et d'activités pour votre séjour en june.
Weather overview in June in St Barts
June officially marks the beginning of hurricane season in Saint Barthelemy (June 1st). Temperatures climb between 25C (77F) and 31C (88F) with high humidity making the air heavier. Trade winds become scarce, giving way to characteristic tropical heat.
It's a transitional month with sunny days interspersed with brief but intense tropical showers. The sea reaches 28C (82F), an ideal temperature for swimming and diving. The island is very quiet with few tourists, offering an authentic experience and attractive rates.
Notable weather phenomena in June
Start of hurricane season
The official hurricane season begins June 1st in the Caribbean. Although hurricanes are still rare in June, weather monitoring is recommended. Tropical depressions can form quickly.
Possible Saharan dust
June sees the first arrivals of Saharan dust haze. This natural phenomenon creates an atmospheric veil, reducing visibility and giving the sky a whitish tint. Sunsets become spectacular with intense orange tones.
Tropical heat
The absence of constant trade winds makes days particularly hot and humid. Feels-like temperatures can exceed 35C (95F) in mid-afternoon. Prefer activities early in the morning or late in the day.
Temperatures and wind conditions
Air temperatures
Temperatures are high with strong humidity. Nights remain warm and the air becomes muggy. Hydration and sun protection are essential.
Wind conditions
Trade winds are very weak and irregular. The wind brings little freshness, making the atmosphere heavy and stifling.
Sea temperature and ocean conditions
Water temperature
28C (82F)
Very warm - bathtub-like
Sea state
Very calm
Glassy water most of the time
Visibility
15-20 meters (50-65 ft)
Good despite plankton
Recommended water activities
Rainfall and humidity levels
Precipitation
Humidity
Humidity reaches high levels, making the heat difficult to bear in the middle of the day. The air is thick and sticky, especially after showers.
Natural risks in June
Hurricane risk
June marks the beginning of hurricane season in the Atlantic. Although major hurricanes are still rare this month, tropical depressions can form. Weather monitoring is recommended and travel insurance is advised.
Sargassum risk
June is one of the months most impacted by sargassum. All beaches exposed to the east and south may be affected. Cleaning services are active but accumulations are significant and persistent.
Saharan dust
Saharan dust haze starts appearing in June. These episodes create an atmospheric veil that reduces visibility and may irritate sensitive airways. Sunsets are spectacular.
Vegetation and landscapes
Vegetation at its peak
June offers vegetation at its peak. Regular rains and heat create a lush tropical environment. Flamboyant trees are in full scarlet bloom, bougainvilleas burst with colors, and the island breathes life. It's a magnificent time for nature lovers and photographers.
Positive points
- Vibrant tropical landscapes
- Spectacular blooms
- Intoxicating fragrances
To note
- - Many mosquitoes
- - Very dense vegetation
- - Wet hiking trails
Visitor numbers, pollution and noise
Tourist attendance
June is one of the least busy months of the year. The combination of hurricane season start, humid heat, and low prices discourages typical tourists. The island returns to its authenticity with a preserved local atmosphere.
Positive impact
- - Completely deserted beaches
- - No waiting anywhere
- - Authentic local life
- - Minimum rates (-40 to -60%)
To consider
- - Many establishments closed
- - Few direct flights
- - Non-existent nightlife
- - Limited services
Road traffic
Traffic is virtually non-existent. You'll encounter more locals than tourists on the roads.
Construction work
This is the preferred time for major infrastructure work and establishment renovations.
Air pollution
Air is generally excellent, except during Saharan dust episodes which can temporarily reduce air quality.
Is June a good time to visit St Barts?
Consider with caution
June suits adventurous travelers who accept humid heat, hurricane risk, and sargassum in exchange for very low rates and a deserted island. Diving is exceptional with 28C (82F) water and abundant marine life. Monitor weather forecasts and get comprehensive travel insurance.
Perfect for
- + Passionate divers
- + Very tight budgets
- + Lovers of absolute solitude
- + Nature photographers
Avoid if
- - Intolerance to humid heat
- - Fear of hurricanes
- - Sensitivity to sargassum
- - Need for tourist services
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