Grand Case weather in September (Saint Martin)

Is Grand Case a good destination in September, weather-wise? Get all the weather information you need to plan your visit.

Temperatures

Typically, September in Grand Case includes high temperatures and high rainfall. Daytime temperatures generally peak at 30°C, but after sunset, they often decrease to around 27°C. Average temperatures can be deceiving; some days will be hotter. Wear breathable fabrics and drink plenty of water to stay cool.

Precipitation

Grand Case in September usually receives high rainfall, averaging around 134 mm for the month. The climate data from previous years indicates that there are typically about 19 days days of rain.

Average sunshine

With around 232 hours of sunshine, the days are mostly sunny. It gives a pleasant and vibrant feel to the area.

If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit Grand Case. January, February, March, April, May, June, July and December generally stand out with the best circumstances. While September tends to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Grand Case climate page with graphs.

 

Grand Case, monthly averages in September

Min Temperature 27°C  

Max Temperature 30°C  

Water Temperature 29°C *  

Chance of Rain 62%  

Precipitation 134 mm  

Rainy days 19 days  

Humidity 78% *  

Windspeed 18 km/h *  

Sunshine 232 hours *  

Percentage Sunshine 61% *  

* Data from: Sint Maarten, Sint Maarten (8 KM, 5 Miles).

Where to go in Saint Martin in September

Find out more about the weather in Saint Martin and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case. With a water temperature of around 29°C this is a great month to swim so bring your swimwear.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

7/10

Outdoor sports

7/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Grand Case.

Our site offers climate and forecast data for every country in the world. Are you going to Saint Martin? On this website you can find historical weather averages for many cities in Saint Martin. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.