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Saint Barthélemy, Saint Barthélemy · Tropical

Saint Barthélemy: best months to visit

March (8.3/10) · November (5.1/10).

📅 Updated August 2026 🛰️ ERA5 · 10 years 📍 17.90°N · 62.83°W
⚡ Quick answer
March
Depends on your goals
8.3/10
☀️ Mar
Top score (8.3/10)
🌤️ May
Alt. (8.3/10)
Nov
Plus rude (5.1/10)
🌴 Tropical☀️ High UV🌧️ Monsoon season
Photo par Loris Boulinguez via Unsplash
Decide

When to visit Saint Barthélemy?

The decision rests on several criteria. Climate score, tourist crowds and feasible activities.

Verdict: In Saint Barthélemy, March and May clearly stand out. November concentrates the least favourable conditions.
G
Gilles's view
Founder · BestDateWeather

Saint Barthélemy ("Saint-Barth" or "St. Barts" in English), French overseas community in the Lesser Antilles: 25 km², 10,000 inhabitants, one of the smartest and most expensive destinations in the Caribbean (the "tropical Saint-Tropez"). March is my favourite month (8.7/10): 24-25°C, 25% rain, sea at 26°C, end of the high season. From December to April, it's the tourist high season: 24-26°C, 25-42% rain, extreme hotel prices (Hôtel Manapany or Cheval Blanc Saint-Barth 1500-5000€/night, private villas 5000-50,000€/week), bookings 1 year ahead for Christmas/New Year (when the yacht of Bezos/Murdoch and the Russians dock at Gustavia, paparazzi on the lookout). From June to November, it's the cyclone season: 35-59% rainfall, real hurricane risk (Irma 2017 category 5 devastated the island at 70%), many hotels close September-October. Highlights: Gustavia (capital, yacht harbour, former Swedish colony 1784-1878 = French name/Scandinavian influence in the architecture, luxury boutiques Hermès/Cartier/Vuitton), Beaches: Saline (wild, no facilities), Gouverneur (wild), Saint-Jean (lively with Eden Rock, iconic hotel, spectacular plane landing just above), Anse Colombier (accessible only on foot 30 min or boat, calm beach), Shell Beach (shells, in Gustavia centre), Lorient (surf), Flamands. Landing at St. Jean = one of the most dangerous in the world (650m runway, abrupt descent above the col de la Tourmente). Try grilled lobster, accras, ti-punch. Flight from Saint-Martin (10 min by plane) after direct flight Paris-Saint-Martin.

Top & avoid
🏆 March · 8.3 May · 8.3 April · 8.1 February · 8.0 ⚠️ November · 5.1
7.9
Jan
8.0
Feb
8.3
Mar
8.1
Apr
8.3
May
5.6
Jun
5.3
Jul
5.4
Aug
5.1
Sep
5.1
Oct
5.1
Nov
7.9
Dec
Best period · ≥ 7 Decent period · 4 – 7 Tough conditions · < 4

What you grasp in 5 seconds

Saint Barthélemy offers 6 comfortable months, without any month really to avoid. The gap stays moderate: 8.3 in March vs 5.1 in November.

What to check next

Your tolerance for crowds and budget. The best months concentrate tourist saturation and higher prices. Shoulder seasons offer a good compromise.

Next action

Scroll down to the detailed table to compare month by month, then open the page of the month that interests you.

How we calculate the score

The score combines 4 weighted criteria using 10 years of real climate data (ERA5).

Source : ERA5 · Open-Meteo · 10 years (2016–2025) · Full methodology →

Understand

Compare all 12 months

Month-by-month details: temperature, rain, sunshine, score and verdict.

6 comfortable months (Jan · Feb · Mar · Apr · May · Dec)
MonthT° minT° maxRain %mm/daySunScoreVerdict
☀️ January 24°C26°C42%1.1mm6.9h7.9/10Best period
☀️ February 24°C25°C36%1.5mm7.2h8.0/10Best period
☀️ March 24°C25°C25%0.7mm7.9h8.3/10Best period
☀️ April 24°C26°C38%1.6mm7.8h8.1/10Best period
☀️ May 25°C27°C35%1.7mm8.0h8.3/10Best period
🌥️ June 26°C27°C35%1.4mm8.1h5.6/10Decent period
🌥️ July 26°C28°C51%2.2mm7.5h5.3/10Decent period
🌥️ August 26°C28°C48%2.7mm7.4h5.4/10Decent period
🌥️ September 26°C28°C59%4.4mm6.9h5.1/10Decent period
🌥️ October 26°C28°C57%3.8mm6.7h5.1/10Decent period
🌥️ November 26°C27°C53%3.7mm6.4h5.1/10Decent period
☀️ December 25°C26°C43%1.4mm6.7h7.9/10Best period
📊 Quick read
Optimal window
Jan → May
Good transition
Jun · Nov
Tough period
none
🌡️ Detailed conditions (March)
🌡️ Feel
Comfortable
☀️ UV
8.7 · Very strong
💧 Humidity feel
20°C · Humid
☔ Rain
25% · 0.7 mm/day
🌅 Sunshine
7.9h/day
10-year trend

Annual temperatures — Saint Barthélemy

Min/max temperature curves observed over the past 10 years (ERA5). Shows climate stability and trend.

T° maxT° meanT° min24°26°28°201620172018201920202021202220232024202527.8° — decade peak (2024)+0.98°C / decade
Tailor

For your trip

A few angles depending on what kind of trip you are planning.

🌞 Dry season🏖️ Beaches🌊 Surf
Book

Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

🎟️ Activities & tours · Saint Barthélemy

GetYourGuide selection · free cancellation

See all →
Affiliate link · GetYourGuide
Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a tropical stay.

Country · Saint Barthélemy

🗣️LanguageFrench
💶CurrencyEuro (€)
🚗DrivingRight-hand
🛡️Safety Very safe · 1/5
💰Cost of living Expensive · 4/5

🌡️ Climate

🌍Climate typeTropical
📈Climate trend +0.98°C/decade
🔥Hottest monthJuly · 28°C
❄️Coolest monthFebruary · 25°C
🌧️Rainiest month September · 59%

🏝️ Tropical stay

🌞Dry season May → Sep
🌧️Wet season Dec → Mar
🌀Cyclones Season Nov-Apr
🛂VisaSchengen · 90 days
Explore

Related destinations & guides

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Location

Where is Saint Barthélemy ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
Tropical climate with a 8.3 → 5.1 gap between best and worst month. 10 years of ERA5 data to choose by project.
17.90°N · 62.83°W
Questions

Frequently asked questions

What is the best time to visit Saint Barthélemy?
March is the best month with 25.0°C highs, 24.0°C lows, 7.9h of sunshine and 25.0% rainy days. The months of March & May offer comparable conditions.
How many hours of sunshine does Saint Barthélemy get in March?
Saint Barthélemy averages 7.9 sunshine hours per day in March. It is the sunniest month with a climate score of 7.8/10.
What is the rainiest month in Saint Barthélemy?
September is the most unfavourable month with September has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Saint Barthélemy in March?
In March, overnight lows reach 24.0°C, while afternoon highs average 25.0°C.
Is Saint Barthélemy good in winter?
In winter (December-February), Saint Barthélemy scores 7.4/10 on average — Decent period conditions for cultural visits.. The best month overall remains March with a score of 7.8/10.
When should you avoid Saint Barthélemy?
September is the most difficult month to visit Saint Barthélemy, with September has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.