The month in detail
What to expect in July
Summer in Saint Martin brings pleasant temperatures (26°C) and long sunny days (7.4h of sunshine). Rain risk remains low (25% of days), leaving good room for outdoor activities. A good balance between weather and crowds, even if June (8.8/10) remains theoretically better.
July ranks 6 out of 12 months in Saint Martin. Compared to June: 9 pts more rainy days, −0.9h of sun per day.
This month's conditions
What it's like in July
UV index
9 · very high
protection essential
Feels like
muggy at times
22°
Sea
29°C
warm, ideal
Daylight
13.0h of daylight
Air quality
good
AQI 36
Compare
Is July the right month?
The best month in Saint Martin is June (8.8/10), 0.6 pt higher than July.
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
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Flights
Multi-airline comparator
Kiwi →
🎟️ Activities & tours · Saint Martin
GetYourGuide selection · free cancellation
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 ⓘ+0.87°C/decade
🔥Hottest monthAugust · 27°C
❄️Coolest monthJanuary · 24°C
🌧️Rainiest month ⓘSeptember · 31%
🏝️ Tropical stay
🌞Dry season ⓘMay → Sep
🌧️Wet season ⓘDec → Mar
🌀Cyclones ⓘSeason Nov-Apr
🛂VisaSchengen · 90 days
Explore
Other destinations in July
If July doesn't convince you for this destination, compare with others.
Similar climate
Saint BarthélemySaint Barthélemy
Saint ThomasUS Virgin Islands
Saint LuciaSaint Lucia
San JuanPuerto Rico
AntiguaAntigua and Barbuda
Location
Where is Saint Martin ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
Saint MartinTropical climate with a 8.8 → 5.6 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 26.0°C highs, 25.0°C lows, 8.3h of sunshine and 16.0% 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 8.2/10.
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 25.0°C, while afternoon highs average 26.0°C.
Is Saint Martin good in winter?
In winter (December-February), Saint Martin scores 7.8/10 on average — Decent period conditions for cultural visits.. The best month overall remains June with a score of 8.2/10.
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 July?
In July, the sea averages 29°C in Saint Martin: warm, ideal. Ideal conditions for swimming and snorkeling.
Do you need sun protection in Saint Martin in July?
The average UV index reaches 9 in July in Saint Martin (very high), with about 13.0h of daylight. Protection essential.