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Saint Barthélemy, Saint Barthélemy · Tropical

Saint Barthélemy in May: go or not?

Excellent time. Saint Barthélemy in May scores 8.3/10.

📅 Updated August 2026 🛰️ ERA5 · 10 years 📍 17.90°N · 62.83°W
⚡ This month's verdict
Go for it
Saint Barthélemy · May
8.3
25–27°
Temperature
35%
Rain
8h
Sun
🌴 Tropical☀️ High UV🌧️ Monsoon season
Photo : Loris Boulinguez via Unsplash
The month in detail

What to expect in May

Spring marks the start of the good season in Saint Barthélemy. Temperatures rise (27.0°F) and tourists have not yet arrived en masse. Expect rain on 35.0% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if March (8.3/10) remains theoretically better.

May is the best month of the year in Saint Barthélemy. Compared to April: +2°F daytime.

This month's conditions

What it's like in May

UV index
9 · very high
protection essential
Feels like
very humid
22°
Sea
28°C
warm, ideal
Daylight
12.8h of daylight
Air quality
good
AQI 23
Compare

Is May the right month?

The best month in Saint Barthélemy is March (8.3/10), 0.0 pt higher than May.

See March →See all 12 months →
Context

Our verdict

Saint Barthélemy ("Saint-Barth" or "St. Barts" in English), French overseas community in the Lesser Antilles: 10 sq miles, 10,000 inhabitants, one of the smartest and most expensive destinations in the Caribbean (the "tropical Saint-Tropez").

Read Gilles' full review →

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Plan your trip

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

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Stay
Hotels & rentals · Saint Barthélemy
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Activities
Tours, tickets, experiences
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Flights
Multi-airline comparator
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🎟️ Activities & tours · Saint Barthélemy

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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 ⓘ+1.77°F/decade
🔥Hottest monthJuly · 82°F
❄️Coolest monthFebruary · 77°F
🌧️Rainiest month ⓘSeptember · 59%

🏝️ Tropical stay

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

Other destinations in May

If May doesn't convince you for this destination, compare with others.

Similar climate
Saint MartinSaint MartinSaint ThomasUS Virgin IslandsBasseterreSaint Kitts and NevisSaint LuciaSaint LuciaSan JuanPuerto Rico
Nearby
AntiguaAntigua and Barbuda135 kmGuadeloupeGuadeloupe228 kmDominicaDominica318 kmPuerto RicoPuerto Rico352 km
Other top picks
TofoMozambique8.3DurbanSouth Africa8.4HonoluluUnited States8.4MadagascarMadagascar8.4OaxacaMexico8.4
← AprilJune →
🗺️ See all 754 destinations on the map
Location

Where is Saint Barthélemy ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
Saint Barthélemy
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 77°F highs, 75°F 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 75°F, while afternoon highs average 77°F.
Is Saint Barthélemy good in winter?
In winter (December-February), Saint Barthélemy scores 7.4/10 on average — Acceptable 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.
Can you swim in Saint Barthélemy in May?
In May, the sea averages 83°F in Saint Barthélemy: warm, ideal. Ideal conditions for swimming and snorkeling.
Do you need sun protection in Saint Barthélemy in May?
The average UV index reaches 9 in May in Saint Barthélemy (very high), with about 12.8h of daylight. Protection essential.