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St Maarten weather

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EuropeanECMWF
29°
Partly cloudy
Feels 32° · Wind 20 km/h · Humidity 72%
AmericanNOAA GFS
28°
Clear
Feels 31° · Wind 22 km/h · Humidity 79%
GermanDWD ICON
28°
Partly cloudy
Feels 33° · Wind 14 km/h · Humidity 82%

Latest for St Maarten: European (ECMWF): 29° Partly cloudy · American (NOAA GFS): 28° Clear · German (DWD ICON): 28° Partly cloudy.

The weather map: all three models at once

European, American, German side by side around St Maarten and nearby towns.Live rain radar →
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Hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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10-day forecast, out to 14 days

where the models agree, and where they split

Heading to St Maarten? St Maarten, Sint Maarten, sits at 18.0°N in a tropical climate zone. Before you lock in outdoor plans, compare how the three global models - European (ECMWF), American (GFS) and German (ICON) - forecast St Maarten right now. Where they agree you can trust it; the days they split are exactly when a single weather app is least reliable. For a beach trip the rain and wind columns below matter most - that is what makes or breaks a day by the sea.

Best time to visit St Maarten

The most comfortable time to visit St Maarten is usually January, February, March and April, when daytime highs sit in the pleasant 24-33°C range and the heaviest November rain is behind you.

St Maarten weather by month

what to expect in St Maarten through the year, 1991-2020 normals, Princess Juliana Airport (WMO)

Here is St Maarten's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to St Maarten by season.

Jan
29°
23°
Hot
Feb
29°
23°
Hot
Mar
29°
24°
Hot
Apr
30°
24°
Hot
May
30°
25°
Hot
Jun
31°
26°
Hot
Jul
32°
26°
Hot
Aug
32°
26°
Hot
Sep
32°
26°
Hot
Oct
31°
26°
Hot
Nov
30°
25°
Hot
Wettest
Dec
29°
24°
Hot

St Maarten compared with Toronto

30-year averages: daytime highs month by month, rain and sunlight

Warmer through the year

+16°C

average daytime high: St Maarten 30°C, Toronto 14°C

Rain over a year

+21%

St Maarten 1,116 mm, Toronto 924 mm

Sunlight vs a clear sky

88% vs 67%

solar energy reaching the ground as a share of a cloudless day, averaged over the year (not sunshine hours)

St MaartenTorontoaverage daytime high, °C, 1991-2020
January, Toronto: 0°CJanuary, St Maarten: 29°C (+29°C)February, Toronto: 1°CFebruary, St Maarten: 29°C (+28°C)March, Toronto: 5°CMarch, St Maarten: 29°C (+24°C)April, Toronto: 12°CApril, St Maarten: 30°C (+18°C)May, Toronto: 19°CMay, St Maarten: 30°C (+11°C)June, Toronto: 24°CJune, St Maarten: 31°C (+7°C)July, Toronto: 27°CJuly, St Maarten: 32°C (+5°C)August, Toronto: 26°CAugust, St Maarten: 32°C (+6°C)September, Toronto: 22°CSeptember, St Maarten: 32°C (+10°C)October, Toronto: 15°COctober, St Maarten: 31°C (+16°C)November, Toronto: 8°CNovember, St Maarten: 30°C (+22°C)December, Toronto: 3°CDecember, St Maarten: 29°C (+26°C)

On 30-year averages St Maarten runs 16°C warmer than Toronto, with every month between +5°C and +29°C. Over a year it gets 21% more rain than Toronto.

Month by month in numbers
MonthSt MaartenTorontoDifferenceSunlight, St MaartenSunlight, Toronto
January29°C0°C+29°C89%56%
February29°C1°C+28°C90%57%
March29°C5°C+24°C90%64%
April30°C12°C+18°C89%67%
May30°C19°C+11°C86%72%
June31°C24°C+7°C87%76%
July32°C27°C+5°C88%79%
August32°C26°C+6°C89%79%
September32°C22°C+10°C88%76%
October31°C15°C+16°C86%63%
November30°C8°C+22°C85%60%
December29°C3°C+26°C87%54%

Daytime highs and lows on this page are 1991-2020 averages. St Maarten: station normals from Princess Juliana Airport (WMO), rain included. Toronto: station normals from Toronto City (WMO); rain is the CHELSA 1981-2010 climatology on a 1 km grid. Sunlight vs a clear sky is NASA POWER's long-term average of the solar energy reaching the ground as a share of a cloudless day; it compares cloudiness and is not a count of sunshine hours. Toronto stands in for Canada here; other cities have their own climate tables.

Common questions

When is the best time to visit St Maarten?
The most comfortable time to visit St Maarten is usually January, February, March and April, when daytime highs sit in the pleasant 24-33°C range and the heaviest November rain is behind you.
Will it rain in St Maarten during my trip?
Rain is where forecasts disagree most. Instead of trusting one app, the comparison above lines up the European, American and German models for St Maarten - check your dates and look for the days they agree; those are the ones you can plan around.
Which forecast is most accurate for St Maarten?
For destinations abroad we compare three open global models (ECMWF, GFS and ICON) and show you where they disagree, so you can judge the confidence yourself.
How much warmer is St Maarten than Toronto?
On 30-year averages (1991-2020) the daytime high in St Maarten is about 16°C warmer than in Toronto (30°C against 14°C), with the monthly gap between 5°C and 29°C.

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