Weather in Saint Martin

14-day forecast · updated today, Wednesday, October 28, at 11:01 pm (CDT)

Now · overcast 60 °F

Feels like: 59 °F
Low / high: 53 / 80 °F
Rain: 0%
Wind: 4 mph NNE

→ 30.15 inHg · steady

Today in Saint Martin: partly cloudy, 53 °F to 80 °F, with a 0% chance of rain and a light breeze from the north-northeast (4 mph). Tomorrow, overcast, 52 °F to 80 °F and a 0% chance of rain. The warmest day of the week is Wednesday 28, at 80 °F. Next likely rain: Saturday 31 (39%).

Measured now at the airport

Biloxi/Keesler AFB (KBIX), 3.6 mi away · 1 h 6 min ago

Visibility9.9 mi or more

WeatherNothing to note

Temperature66 °F

WindCalm

It's what the airport's weather station measured, not a forecast: on the coast, wind and fog can be different. Airports report every 30 or 60 minutes.

Airport METAR report, via NOAA's Aviation Weather Center (aviationweather.gov). Sources and licenses

Temperatures for the next 14 days

80° 53°
Today
80° 52°
Thu 29
80° 62°
Fri 30
80° 65°
Sat 31
77° 65°
Sun 1
78° 63°
Mon 2
79° 65°
Tue 3
77° 61°
Wed 4
75° 57°
Thu 5
72° 52°
Fri 6
72° 50°
Sat 7
72° 51°
Sun 8
72° 50°
Mon 9
74° 55°
Tue 10

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 28	Partly cloudy	53 / 80 °F	0%	8 mph NE	0.7 ft	12:20 am	HRRR
Thu 29	Overcast	52 / 80 °F	0%	6 mph NE	0.9 ft	1:03 am	HRRR + NBM
Fri 30	Overcast	62 / 80 °F	1%	11 mph ENE	1.4 ft	1:52 am	NBM
Sat 31	Rain	65 / 80 °F	39% · 0.33 in	12 mph E	1.2 ft	2:40 am	NBM
Sun 1	Light showers	65 / 77 °F	42% · 0.17 in	11 mph ENE	1.1 ft	2:27 am	NBM
Mon 2	Overcast	63 / 78 °F	4%	12 mph E	1.2 ft	3:11 am	NBM
Tue 3	Light drizzle	65 / 79 °F	23% · 0.04 in	17 mph ESE	2.0 ft	4:01 am	NBM
Wed 4	Light showers	61 / 77 °F	39% · 1.00 in	14 mph SSE	1.8 ft	9:43 am · 10:41 pm	NBM
Thu 5	Showers	57 / 75 °F	26% · 0.33 in	11 mph W	1.9 ft	12:17 pm · 9:44 pm	NBM
Fri 6	Light drizzle	52 / 72 °F	5% · 0.04 in	8 mph WNW	2.6 ft	8:25 pm	NBM
Sat 7	Overcast	50 / 72 °F	8% · 0.07 in	6 mph NNE	2.4 ft	8:54 pm	NBM
Sun 8	Overcast	51 / 72 °F	10% · 0.07 in	7 mph NNE	1.6 ft	9:28 pm	NBM + ECMWF
Mon 9	Overcast	50 / 72 °F	8%	7 mph N	1.2 ft	10:03 pm	ECMWF
Tue 10	Overcast	55 / 74 °F	16%	6 mph N	0.7 ft	10:40 pm	ECMWF

Each hour comes from the best model for this spot: HRRR until Thursday 29 6:00 pm; then NBM until Sunday 8 7:00 pm; then ECMWF until Thursday 12 9:00 am; then GFS.

Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.

Today, every 3 hours

Time	12:00 am	3:00 am	6:00 am	9:00 am	12:00 pm	3:00 pm	6:00 pm	9:00 pm
Sky	Mainly clear	Clear	Clear	Clear sky	Clear sky	Clear sky	Clear sky	Clear
Temperature	59°	56°	54°	62°	77°	80°	76°	63°
Chance of rain	0%	0%	0%	0%	0%	0%	0%	0%
Rain	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in
Wind (mph)	2 N	3 NNE	3 NNE	6 NE	7 NE	7 ENE	3 SE	4 NW
Humidity	93%	90%	91%	78%	51%	45%	40%	75%
UV	0	0	0	1	6	3	0	0
Model	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR

Do the models agree?

Medium confidence

They broadly agree, but not quite on rain on Saturday 31: take it with some caution.

What 6 forecast models say for the next few days. The closer they are, the more reliable the forecast.

HighRainWind

Do the models agree? · High
High (°F)	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	81°	80°	81°	80°	77°	79°	79°
AIFS	80°	80°	78°	80°	75°	77°	77°
GFS	83°	83°	84°	79°	80°	80°	79°
ICON	81°	82°	80°	78°	72°	76°	78°
HRRR	80°	80°	82°	—	—	—	—
NBM	79°	80°	80°	80°	77°	78°	79°
Confidence	high	high	high	high	high	high	high

Do the models agree? · Rain
Rain	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	0	0	0	0.82 in	0.41 in	0	0.04 in
AIFS	0	0	0	0.12 in	0.40 in	0	0
GFS	0	0	0	0.26 in	0.48 in	0	0.01 in
ICON	0	0	0	0.02 in	0.98 in	0	0
HRRR	0	0	0	—	—	—	—
NBM	0	0	0	0.33 in	0.17 in	0	0.04 in
Confidence	high	high	high	medium	medium	high	high

Do the models agree? · Wind
Wind (mph)	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	714	717	921	918	816	920	1036
AIFS	6	7	8	8	10	10	9
GFS	510	619	720	923	925	517	618
ICON	413	515	718	617	512	617	414
HRRR	812	617	1121	—	—	—	—
NBM	711	713	1117	1219	1117	1218	1724
Confidence	high	high	high	high	high	high	high

Chance of rain from the ensemble models

Model	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF (51 scenarios)	0%	0%	4%	71%	67%	48%	41%
GFS (GEFS, 31 scenarios)	0%	0%	6%	84%	87%	29%	48%
NBM (NOAA)	0%	0%	1%	39%	42%	4%	23%
Thunderstorm (NBM)	0%	0%	1%	20%	19%	3%	5%

Each model's day runs midnight to midnight local time; models that reach fewer days are left blank. Rain: daily total. Wind: the day's highest average wind and, in small type, the strongest gust. Highlighted: values that stand out from the rest. The chance of rain comes from many runs of the same model with slightly different starting data.

Outlook

How the coming weeks and months compare with what is normal for the time of year. It is a trend, not a day-by-day forecast.

Next few weeks, compared with normal: normal temperatures and a bit wetter.

Next 6 weeks

When	TemperatureTemp.	Rain	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Above +4.7 °F	Well above +134%	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit below −2.3 °F	Normal	69° / 53°
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +0.9 °F	Normal	70° / 55°
Nov 23 – Nov 29Nov 23–Nov 29	A bit below −0.9 °F	A bit above +33%	66° / 53°
Nov 30 – Dec 6Nov 30–Dec 6	A bit below −1.4 °F	Above +59%	64° / 51°

Coming months

When	TemperatureTemp.	Rain
November	Normal +0.4 °F	A bit above +41%
December	A bit below −1.4 °F	Normal
January	A bit below −1.8 °F	Normal
February	A bit below −2.0 °F	A bit above +41%
March	A bit below −1.1 °F	A bit above +44%

Weeks: ECMWF 46-day (average of its scenarios), against the normal of the last 20 years for those dates. Months: ECMWF SEAS5. Rain: total against normal. The further ahead, the closer it gets to normal and the less detail it can give. The long-range sea temperature isn't usable at this spot (the model's grid cell falls on land).

Saint Martin climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Saint Martin is from October to November and from March to May: highs of 70 °F to 83 °F, about 8 rainy days a month and 7 hours of sunshine a day.

Hurricane season: from June to October, peaking in September. In the last 30 years (1996–2025), 19 tropical cyclones passed within 93 mi of Saint Martin, about 6 every 10 years; 7 of them with hurricane-force winds (74 mph or more). The most recent: Francine, in September 2024.

61° 43°

JanJ
64° 46°

FebF
70° 53°

MarM
76° 59°

AprA
83° 67°

MayM
89° 73°

JunJ
91° 74°

JulJ
90° 74°

AugA
87° 70°

SepS
80° 60°

OctO
71° 50°

NovN
64° 45°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	61°	43°	5.05 in	10	4.5	58°	2.2 ft	–
FebruaryFeb	64°	46°	5.91 in	8	5.0	59°	2.1 ft	–
MarchMar	70°	53°	4.80 in	8	6.2	64°	2.1 ft	–
AprilApr	76°	59°	5.03 in	8	7.2	71°	2.1 ft	–
MayMay	83°	67°	4.97 in	9	8.5	78°	1.8 ft	–
JuneJun	89°	73°	7.39 in	15	7.6	83°	1.7 ft	5
JulyJul	91°	74°	6.74 in	19	7.6	85°	1.3 ft	2
AugustAug	90°	74°	7.46 in	17	7.4	86°	1.4 ft	2
SeptemberSep	87°	70°	5.92 in	11	7.2	83°	1.7 ft	7
OctoberOct	80°	60°	3.93 in	7	6.3	76°	2.0 ft	2
NovemberNov	71°	50°	3.85 in	8	5.7	68°	2.2 ft	1
DecemberDec	64°	45°	5.52 in	9	4.3	62°	2.1 ft	–

Month	Water	Waves	Cyclones
Jan	58°	2.2 ft	–
Feb	59°	2.1 ft	–
Mar	64°	2.1 ft	–
Apr	71°	2.1 ft	–
May	78°	1.8 ft	–
Jun	83°	1.7 ft	5
Jul	85°	1.3 ft	2
Aug	86°	1.4 ft	2
Sep	83°	1.7 ft	7
Oct	76°	2.0 ft	2
Nov	68°	2.2 ft	1
Dec	62°	2.1 ft	–

Days: rainy days in the month. Sun: hours a day.

A normal year brings 66.57 in of rain on about 130 days and about 2,350 hours of sunshine.

Cyclones: how many tropical cyclones (tropical storms, hurricanes and typhoons) passed within 93 mi in each month from 1996 to 2025, according to IBTrACS (NOAA).

1991–2020 averages. Highs, lows and rainfall: TerraClimate; rainy days (0.04 in or more): NASA POWER (MERRA-2); sunshine hours: estimated from solar radiation; water: NOAA OISST; waves (average height): ERA5, 2011–2020. Normals are not a forecast: any given year can turn out very different. Sources and licenses

Temperature

Now60 °Ffeels like 59 °F

Tomorrow52 / 80 °F

It's 60 °F now (feels like 59 °F). Today, 53 °F to 80 °F; tomorrow, 52 °F to 80 °F.

Chance of rain

Today 0%
Thu 29 0%
Fri 30 1%
Sat 31 39% 0.33 in
Sun 1 42% 0.17 in
Mon 2 4%
Tue 3 23% 0.04 in

Today the chance of rain reaches 0%. The next day with likely rain is Saturday 31: 39% and 0.33 in.

No rain in the last 7 days.

Humidity and dew point

Humidity83%

Dew point55 °F

Humidity is 83% now and the dew point is 55 °F.

The dew point is the temperature at which the air becomes saturated: the higher it is, the heavier the air feels.

Visibility and fog

Now10 migood

Clouds82%

Visibility is good now (10 mi). No fog expected today.

UV index

Now0

Today's peak6moderate

Thu 29: 6 · Fri 30: 5 · Sat 31: 5

Index	Level	What to do
0–2	low	No special protection needed.
3–5	moderate	Hat, sunglasses and sunscreen around midday.
6–7	high	Sunscreen, hat and shade between 12 and 4 pm.
8–10	very high	Avoid the midday sun; reflection off the water adds to it.
11+	extreme	Avoid the sun between 11 am and 5 pm; protect yourself even if it is cloudy.

Reflection off water and sand adds radiation: protect yourself more on a boat or at the beach.

Barometric pressure

↗ Rising Anglers say fish bite less for a while
→ Steady · now Anglers expect normal activity
↘ Falling Anglers say fish feed more before the change

30.1030.20 30.07

Steady now (+0.01 inHg in 3 hours). Over the next 48 hours: −0.04 inHg. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityGood · 43

Saharan dustNo

Previous days

The weather over the last 30 days, as the models analyzed it. Tap a day to see it hour by hour.

Day	Sky	Low / high	Max wind
Tue 27	Overcast	55 / 80 °F	7 mph NE
Mon 26	Overcast	55 / 79 °F	9 mph NE
Sun 25	Mainly clear	53 / 79 °F	9 mph NE
Sat 24	Clear sky	54 / 77 °F	8 mph NE
Fri 23	Clear sky	52 / 82 °F	7 mph NNE
Thu 22	Mainly clear	50 / 82 °F	6 mph NNE
Wed 21	Clear sky	48 / 79 °F	7 mph NNE

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Tue 20	Clear sky	53 / 78 °F	0	8 mph NE
Mon 19	Overcast	49 / 76 °F	0	9 mph NE
Sun 18	Clear sky	50 / 73 °F	0	10 mph NE
Sat 17	Overcast	54 / 71 °F	0	17 mph NNE
Fri 16	Light drizzle	65 / 87 °F	0.07 in	17 mph N
Thu 15	Overcast	62 / 87 °F	0	6 mph E
Wed 14	Overcast	61 / 89 °F	0	6 mph WSW
Tue 13	Clear sky	58 / 89 °F	0	6 mph SW
Mon 12	Overcast	60 / 89 °F	0	6 mph W
Sun 11	Mainly clear	60 / 87 °F	0	6 mph WSW
Sat 10	Overcast	64 / 76 °F	0	14 mph NNW
Fri 9	Light rain	67 / 73 °F	0.28 in	20 mph NNE
Thu 8	Overcast	68 / 84 °F	0	13 mph NE
Wed 7	Overcast	69 / 87 °F	0	9 mph NE
Tue 6	Light drizzle	71 / 83 °F	0.02 in	11 mph NE
Mon 5	Drizzle	73 / 83 °F	0.15 in	9 mph NNE
Sun 4	Showers	74 / 77 °F	2.20 in	6 mph E
Sat 3	Thunderstorm	75 / 83 °F	0.87 in	9 mph E
Fri 2	Heavy drizzle	73 / 88 °F	0.19 in	8 mph E
Thu 1	Drizzle	76 / 88 °F	0.15 in	10 mph SE
Wed 30	Drizzle	67 / 89 °F	0.06 in	8 mph E
Tue 29	Clear sky	63 / 92 °F	0	6 mph E
Mon 28	Overcast	66 / 91 °F	0	6 mph NNE

These are the models at the start of each day (ECMWF and GFS; waves from Météo-France), not readings from a weather station: there can be differences at specific spots.

Questions about the weather in Saint MartinQuestions

What's the weather like today in Saint Martin?

Partly cloudy, from 53 °F to 80 °F, with a light breeze from the north-northeast (4 mph) and a 0% chance of rain.

Will it rain tomorrow in Saint Martin?

On Thursday 29 the chance of rain is 0% (0.00 in): overcast.

How warm will it be this week?

Between a low of 52 °F and a high of 80 °F; the warmest day, Wednesday 28.

What's the UV index today?

It reaches 6 (moderate). Hat, sunglasses and sunscreen around midday.

Is the pressure rising or falling?

It's 30.15 inHg and steady: −0.04 inHg over the last 24 hours.

When is the best time to visit Saint Martin?

The best time to visit Saint Martin is from October to November and from March to May: highs of 70 °F to 83 °F, about 8 rainy days a month and 7 hours of sunshine a day.

What is the weather like in Saint Martin in October?

In October, Saint Martin normally sees highs of 80 °F and lows of 60 °F, with about 7 rainy days (3.93 in for the month) and 6 hours of sunshine a day. The sea is around 76 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Saint Martin?

The warmest is July, with average highs of 91 °F, and the coldest January, with lows of 43 °F. The wettest is August (7.46 in) and the driest, November.

When is hurricane season in Saint Martin?

Hurricane season: from June to October, peaking in September. In the last 30 years (1996–2025), 19 tropical cyclones passed within 93 mi of Saint Martin, about 6 every 10 years; 7 of them with hurricane-force winds (74 mph or more). The most recent: Francine, in September 2024.

More about Saint Martin today

Weather near Saint Martin

Only places with a different forecast: spots a few miles apart share the same model cell and wouldn't add anything.

Learn more

Weather: Open-Meteo, CC BY 4.0, with the best model for each spot and lead time (NOAA HRRR and NBM in the U.S., Météo-France AROME, DWD ICON-EU, ECMWF IFS and NOAA GFS); ECMWF grid point 8.2 mi away. The comparison also uses ICON (DWD), AIFS (ECMWF) and ARPEGE (Météo-France). Outlook: ECMWF 46-day and SEAS5. Chance of rain from ensemble models (ECMWF, GEFS and NBM). UV, air quality and pollen: CAMS (Copernicus).

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 11:01 pm (local time).

Spotted a mistake? Tell us · Where the weather and sea data come from