BestDateWeather
✈️ Plan my tripPlan trip
Saint Martin, Saint Martin · Tropical

Saint Martin in May: go or not?

Excellent time. Saint Martin in May scores 8.1/10.

📅 Updated August 2026 🛰️ ERA5 · 10 years 📍 18.07°N · 63.05°W
⚡ This month's verdict
Go for it
Saint Martin · May
8.1
24–25°
Temperature
36%
Rain
8h
Sun
🌴 Tropical☀️ High UV🌧️ Monsoon season
Photo : Ramon Kagie via Unsplash
The month in detail

What to expect in May

Spring marks the start of the good season in Saint Martin. Temperatures rise (25.0°F) and tourists have not yet arrived en masse. Expect rain on 36.0% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if June (8.3/10) remains theoretically better.

May ranks 3 out of 12 months in Saint Martin. 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
muggy at times
21°
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 Martin is June (8.3/10), 0.2 pt higher than May.

See June →See all 12 months →
Context

Our verdict

Saint Martin is the most divided island in the Caribbean: 20 sq miles between French in the north (Marigot) and Dutch in the south (Philipsburg/Sint Maarten), free border crossing. March-April are my favorite months (8.4-8.6/10): 73-82°F, 27-38% rain, sea at 79°F.

Read Gilles' full review →

Book

Plan your trip

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

🏨
Stay
Hotels & rentals · Saint Martin
Expedia →
🎟️
Activities
Tours, tickets, experiences
See ↓
✈️
Flights
Multi-airline comparator
Kiwi →

🎟️ Activities & tours · Saint Martin

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 Martin

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

🌡️ Climate

🌍Climate typeTropical
📈Climate trend ⓘ+1.57°F/decade
🔥Hottest monthAugust · 81°F
❄️Coolest monthJanuary · 75°F
🌧️Rainiest month ⓘSeptember · 57%

🏝️ 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 BarthélemySaint BarthélemySaint ThomasUS Virgin IslandsBasseterreSaint Kitts and NevisSaint LuciaSaint LuciaSan JuanPuerto Rico
Nearby
AntiguaAntigua and Barbuda165 kmGuadeloupeGuadeloupe258 kmPuerto RicoPuerto Rico326 kmSan JuanPuerto Rico326 km
Other top picks
BrisbaneAustralia8.1San DiegoUnited States8.1BujumburaBurundi8.0LimaPeru8.0JohannesburgSouth Africa8.2
← AprilJune →
🗺️ See all 754 destinations on the map
Location

Where is Saint Martin ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
Saint Martin
Tropical climate with a 8.3 → 5.1 gap between best and worst month. 10 years of ERA5 data to choose by project.
18.07°N · 63.05°W
Questions

Frequently asked questions

What is the best time to visit Saint Martin?
June is the best month with 79°F highs, 77°F lows, 8.3h of sunshine and 33.0% rainy days. The months of June & March offer comparable conditions.
How many hours of sunshine does Saint Martin get in June?
Saint Martin averages 8.3 sunshine hours per day in June. It is the sunniest month with a climate score of 7.7/10.
What is the rainiest month in Saint Martin?
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 Martin in June?
In June, overnight lows reach 77°F, while afternoon highs average 79°F.
Is Saint Martin good in winter?
In winter (December-February), Saint Martin scores 7.3/10 on average — Acceptable conditions for cultural visits.. The best month overall remains June with a score of 7.7/10.
When should you avoid Saint Martin?
September is the most difficult month to visit Saint Martin, 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 Martin in May?
In May, the sea averages 83°F in Saint Martin: warm, ideal. Ideal conditions for swimming and snorkeling.
Do you need sun protection in Saint Martin in May?
The average UV index reaches 9 in May in Saint Martin (very high), with about 12.8h of daylight. Protection essential.