Weather in St. Martin - 14-day forecast

Detailed weather forecast for St. Martin, France: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.

Forecast for the next days in St. Martin

today🌤️ 27°💧 0.1 mm

Thu☁️ 27°💧 0.1 mm

Fri🌧️ 27°💧 0.1 mm

Sat🌧️ 27°💧 1 mm

Sun🌧️ 27°💧 0.2 mm

Mon🌧️ 27°💧 0.3 mm

Tue🌧️ 27°💧 0.1 mm

Wed🌧️ 27°💧 0.1 mm

14-day forecast - St. Martin

Day-by-day forecast for St. Martin

Wednesday8 July 2026

🌤️27°scattered clouds

sunrise 05:42 · sunset 18:52 · night 28° · evening 27° · rain 0.13 mm · humidity 80% · wind 10 m/s · clouds 35%

Thursday9 July 2026

☁️27°overcast clouds

sunrise 05:43 · sunset 18:52 · night 27° · evening 27° · rain 0.1 mm · humidity 80% · wind 11 m/s · clouds 95%

Friday10 July 2026

🌧️27°light rain

sunrise 05:43 · sunset 18:52 · night 27° · evening 27° · rain 0.1 mm · humidity 80% · wind 10 m/s · clouds 98%

Saturday11 July 2026

🌧️27°light rain

sunrise 05:43 · sunset 18:52 · night 27° · evening 27° · rain 0.97 mm · humidity 78% · wind 9 m/s · clouds 91%

Sunday12 July 2026

🌧️27°light rain

sunrise 05:44 · sunset 18:52 · night 27° · evening 27° · rain 0.23 mm · humidity 76% · wind 9 m/s · clouds 7%

Monday13 July 2026

🌧️27°light rain

sunrise 05:44 · sunset 18:52 · night 27° · evening 27° · rain 0.33 mm · humidity 81% · wind 9 m/s · clouds 10%

Tuesday14 July 2026

🌧️27°light rain

sunrise 05:44 · sunset 18:52 · night 27° · evening 27° · rain 0.12 mm · humidity 79% · wind 9 m/s · clouds 63%

Wednesday15 July 2026

🌧️27°light rain

sunrise 05:45 · sunset 18:51 · night 27° · evening 27° · rain 0.12 mm · humidity 72% · wind 9 m/s · clouds 70%

Thursday16 July 2026

🌧️27°light rain

sunrise 05:45 · sunset 18:51 · night 27° · evening 27° · rain 1.89 mm · humidity 80% · wind 9 m/s · clouds 100%

Friday17 July 2026

☁️27°overcast clouds

sunrise 05:45 · sunset 18:51 · night 27° · evening 27° · rain 0.75 mm · humidity 77% · wind 9 m/s · clouds 100%

Saturday18 July 2026

🌧️27°light rain

sunrise 05:46 · sunset 18:51 · night 28° · evening 28° · rain 0.27 mm · humidity 78% · wind 10 m/s · clouds 45%

Sunday19 July 2026

🌧️27°light rain

sunrise 05:46 · sunset 18:51 · night 27° · evening 27° · rain 0.51 mm · humidity 77% · wind 8 m/s · clouds 74%

Monday20 July 2026

🌧️27°light rain

sunrise 05:46 · sunset 18:50 · night 27° · evening 27° · rain 2.04 mm · humidity 80% · wind 9 m/s · clouds 95%

Tuesday21 July 2026

🌧️27°light rain

sunrise 05:47 · sunset 18:50 · night 27° · evening 27° · rain 0.78 mm · humidity 79% · wind 9 m/s · clouds 5%

Wednesday22 July 2026

🌧️27°light rain

sunrise 05:47 · sunset 18:50 · night 27° · evening 27° · rain 0.36 mm · humidity 86% · wind 10 m/s · clouds 63%

☀️ UV index in St. Martin - is it safe to sunbathe?

Today the UV index in St. Martin is 9 (very high) - unprotected fair skin can burn in about 20 minutes. SPF 50, long sleeves and shade between 10:00 and 16:00.

🌊 Sea temperature - St. Martin

Water today

28°C

Week avg

28°C

Waves today

1.7 m

How's the water?

very warm

16-day sea temperature forecast:

8.07 28°C9.07 28°C10.07 28°C11.07 28°C12.07 28°C13.07 28°C14.07 28°C15.07 28°C16.07 28°C

Average sea temperature through the year:

Jan 27°CFeb 27°CMar 27°CApr 28°CMay 28°CJun 29°CJul 29°CAug 30°CSep 30°COct 30°CNov 29°CDec 28°C

Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Air quality and smog in St. Martin

City	PM2.5 (µg/m³)	PM10 (µg/m³)	Air quality
Lille	10.8	16.6	very good
Marseille 02	8.7	14	very good
Nicea	8.5	13.1	very good
Bordeaux	7.9	10	very good
Rennes	6.2	11.2	very good
Montpellier	5.8	7.4	very good
Hawr	5.3	10.8	very good
Tulon	5.2	6.6	very good
Lyon	5.1	7.6	very good
Grenoble	5.1	7.6	very good
Nîmes	5	7.6	very good
Saint-Étienne	4.8	6.5	very good
Nantes	4.8	6.8	very good
Reims	4.3	6.3	very good
Paris	4.2	7.8	very good

Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-07-08, 03:00).

🎉 Public holidays in St. Martin - when are the long weekends?

Next long weekend in St. Martin: Bastille Day (14 July, Tuesday) - Saturday–Tuesday if you take Monday off (4 days).

14 JulyTuesday

Bastille Day

🎈 long weekend + bridge day

15 AugustSaturday

Assumption Day

falls on a weekend

1 NovemberSunday

All Saints' Day

falls on a weekend

11 NovemberWednesday

Armistice Day

25 DecemberFriday

Christmas Day

🎈 long weekend

1 JanuaryFriday 2027

New Year's Day

🎈 long weekend

29 MarchMonday 2027

Easter Monday

🎈 long weekend

1 MaySaturday 2027

Labour Day

falls on a weekend

6 MayThursday 2027

Ascension Day

🎈 long weekend + bridge day

8 MaySaturday 2027

Victory in Europe Day

falls on a weekend

17 MayMonday 2027

Whit Monday

🎈 long weekend

14 JulyWednesday 2027

Bastille Day

Public holidays (statutory days off) - shops, offices and some attractions may be closed. A "bridge day" is a workday between a holiday and the weekend worth taking as leave.

Nearby places

BasseterreSaint CroixCharlotte AmalieFajardoHumacaoCarolinaCaguas

FAQ - St. Martin weather

What is the weather like in St. Martin today?

Today it is about 27° during the day and 28° at night, scattered clouds.

How far ahead can I check the forecast for St. Martin?

This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.