Saint Barthélemy weather in September (Saint Barthélemy)

How does the September weather in Saint Barthélemy compare to other months? Here’s a detailed forecast of the month’s weather patterns.

Temperatures

In September, the weather in Saint Barthélemy generally includes high temperatures and high rainfall. Anticipate daytime temperatures around 30°C, while night temperatures can drop to 27°C. Note that these temperatures are average, but some days may be hotter. Dress in cool, breathable fabrics to stay comfortable in the heat.

Precipitation

Saint Barthélemy in September usually receives high rainfall, averaging around 131 mm for the month. Past climate data indicates that roughly 18 days will see rain.

Average sunshine

Enjoy a sunny month with about 240 hours of sunshine, providing a cheerful and lively atmosphere.

If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit Saint Barthélemy. January, February, March, April, May, June, July and December typically offer the best circumstances. While September tends to showcase less optimal conditions.

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

 

Saint Barthélemy, monthly averages in September

Min Temperature 27°C  

Max Temperature 30°C  

Chance of Rain 61%  

Precipitation 131 mm  

Rainy days 18 days  

Humidity 76%  

Windspeed 18 km/h  

Sunshine 240 hours  

Percentage Sunshine  

Where to go in Saint Barthélemy in September

Find out more about the weather in Saint Barthélemy 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.

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 Saint Barthélemy.

Our site offers climate and forecast data for every country in the world. Are you going to Saint Barthélemy? On this website you can find historical weather averages for many cities in Saint Barthélemy. 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.