Gustavia Weather Saint-Barth
The main port of Saint Barthelemy, historic capital of the island
Gustavia is the vibrant heart of Saint Barthelemy, combining historic charm and modern luxury. Its horseshoe-shaped harbor welcomes the most beautiful yachts in the world. Discover all the weather and environmental criteria to make the most of your stay in Gustavia: temperatures, sunshine, mosquitoes, sargassum, traffic and much more.
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Recevez la liste des hébergements disponibles à Gustavia adaptés à vos dates et vos besoins.
Gustavia Weather Overview
Average weather conditions and orientation of the Gustavia neighborhood in Saint Barthelemy
28°C
Average Temperature
West
Orientation
East (Trade Winds)
Prevailing Wind
Low
Rain Risk
Sunshine in Gustavia
Hours of sunshine, sunrise and sunset in the harbor neighborhood
Sunrise
06:30
Sunset
18:45
Sun Visible
08:30 - 18:45
West Orientation: Spectacular Sunsets
Gustavia benefits from an ideal west orientation to admire sunsets over the harbor. The sun is directly visible from 8:30 AM to 6:45 PM, offering exceptional brightness throughout the day. The facades of the colorful houses around the harbor light up in the early morning hours and at dusk.
Gustavia Microclimate
Unique climate characteristics of Saint Barthelemy's harbor due to terrain and exposure
Each neighborhood in Saint Barthelemy has its own microclimate due to the island's mountainous terrain. Gustavia, located in a natural amphitheater around the harbor, has unique weather characteristics:
- Protected from trade winds by surrounding hills
- Urban heat concentrated in downtown area
- Refreshing sea breezes in the evening
- Little natural shade on cobblestone streets
Climate Conditions in Gustavia
Wind, humidity, shade and vegetation in the harbor neighborhood
Gustavia is partially protected from trade winds by the hills. Winds are moderate during the day with refreshing sea breezes in the evening.
Humidity is moderate in Gustavia, with a slight increase during the rainy season (August-November). Proximity to the sea maintains a pleasant atmosphere.
Little natural shade in downtown. Cobblestone streets concentrate heat. Prefer shaded terraces of cafes and restaurants to protect yourself from the sun.
Urban neighborhood with little vegetation. Some palm trees and ornamental tropical plants near the harbor and in private gardens.
Natural Risks in Gustavia
Mosquitoes, sargassum, odors and flood risks in the harbor neighborhood
The constant sea breeze and absence of wetlands significantly limit the presence of mosquitoes in Gustavia. The harbor neighborhood is one of the best protected on the island.
Tip: Few precautions needed, but bring repellent for evening terrace dining.
Gustavia harbor is protected from massive sargassum arrivals. The harbor configuration and ocean currents keep these algae away. The Collectivity services intervene quickly in case of beaching.
Season: March to October, but minimal impact on Gustavia.
No sargassum odors in Gustavia. The constant sea breeze and absence of beachings guarantee fresh and pleasant air year-round.
Flooding is rare in Gustavia thanks to the harbor drainage system. Only a few low streets may be temporarily flooded during exceptional heavy tropical rains.
Precaution: Avoid parking in low areas during weather alerts.
Gustavia Flora and Fauna
Animal and plant species observable in the harbor neighborhood
Local Fauna
Gustavia harbor is a prime location to observe marine fauna. Pelicans regularly dive into the harbor to fish, while herons rest on the docks. Green iguanas are sometimes visible in the gardens of neighborhood homes.
Vegetation
The vegetation mainly consists of ornamental plants: colorful bougainvillea, hibiscus, palm trees and flamboyant trees. Being highly urbanized, the neighborhood's natural vegetation is limited to private gardens and landscaped public spaces.
Traffic, Parking and Nuisances in Gustavia
Traffic, parking, noise pollution and construction in the harbor neighborhood
Heavy traffic in high season (December-April) and during nautical events. Narrow downtown streets can be congested. Traffic flows better in low season.
Very difficult parking in high season. Prefer the harbor parking (paid) or public parking lots on the outskirts. Arrive early in the morning to find a spot.
Occasional renovation work in the historic district. Construction sites are generally carried out in low season to minimize impact on tourism.
Moderate to high noise in high season with tourist traffic and scooters. The neighborhood is quieter in low season and in the evening after 10 PM.
Practical Tips
To avoid traffic and noise, prefer walking in downtown. Arrive before 9 AM or after 5 PM to find parking. In high season, consider using shuttles or staying nearby to walk around.
Power and Water Outages
Reliability of public services in the Gustavia neighborhood
Gustavia benefits from priority power supply. Outages are rare and generally short-lived. The neighborhood is equipped with backup generators for commercial establishments.
Water supply is stable in Gustavia. Scheduled maintenance outages are announced in advance. Most establishments have water reserves.
Should You Choose Gustavia for Your Saint-Barth Stay?
Gustavia is the ideal neighborhood for those seeking entertainment, spectacular sunsets and proximity to shops and restaurants. With few mosquitoes, no sargassum and a refreshing sea breeze, weather conditions are excellent.
The main points of attention concern intense midday heat (little shade), heavy traffic in high season, parking difficulties and vehicle noise. These drawbacks are offset by the unique harbor atmosphere, quality infrastructure and the neighborhood's central location.
Recommendation: Perfect for a short stay or for those who enjoy entertainment. Prefer accommodations with air conditioning and private parking. For more peace and quiet, explore outlying neighborhoods like Colombier or Vitet.