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Weather in September in Saint Barthélemy

Planning a trip to Saint Barthélemy this September? Here's what you need to know about the weather:

What is the weather like in Saint Barthélemy in September?

September in Saint Barthélemy generally has warm temperatures, with high precipitation.

Temperatures

You can expect warm maximum daytime temperatures of around 30°C and nighttime temperatures around 27°C in Gustavia. To learn more about the conditions in specific areas of Saint Barthélemy in September, check out the map below. The temperatures mentioned for both day and night are typical averages. However some days might get even hotter. It's best to stay prepared by wearing cloths suitable for the warmth.

To learn more about the conditions in specific areas of Saint Barthélemy, check out the map below.

Precipitation

September is a rainy month with an average rainfall of around 131 mm in Gustavia.

Average sunshine

The days are mostly sunny, with an average total of around 240 hours of sunshine in Gustavia. The sunlight during this month doesn't just make the days brighter, it also seems to make everyone a bit more cheerful.

For more details on the yearly climate, visit our Saint Barthélemy climate page.

Where to go in Saint Barthélemy in September

Find more information for the most popular destinations in the Saint Barthélemy on the map below. Click on a destination dot for more details.

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MarkerMarkerMarker
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).

Select a Month of Interest

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit Saint Barthélemy, check out our Saint Barthélemy's climate page.

Popular destinations

What is the weather like in September for the 3 most popular destinations in Saint Barthélemy?

Gustavia

In September Gustavia generally has high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 27°C and high monthly rainfall. So on average the conditions are tolerable that month.

Gustavia
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
30°C 
27°C 
267 hours 
97 mm 
19 days 
30°C 
27°C 
240 hours 
131 mm 
18 days 
October   >> October
>>  
29°C 
26°C 
251 hours 
138 mm 
20 days 
Climate in Gustavia

Marigot

In September Marigot generally has high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 27°C and high monthly rainfall. So on average the conditions are tolerable that month.

Marigot
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
30°C 
27°C 
267 hours 
97 mm 
19 days 
30°C 
27°C 
240 hours 
131 mm 
18 days 
October   >> October
>>  
29°C 
26°C 
251 hours 
138 mm 
20 days 
Climate in Marigot

Saint Barthélemy

In September Saint Barthélemy generally has high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 27°C and high monthly rainfall. So on average the conditions are tolerable that month.

Saint Barthélemy
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
30°C 
27°C 
267 hours 
97 mm 
19 days 
30°C 
27°C 
240 hours 
131 mm 
18 days 
October   >> October
>>  
29°C 
26°C 
251 hours 
138 mm 
20 days 
Climate in Saint Barthélemy

Is your destination not in the list? Have a look at other destinations in Saint Barthélemy.

Is September the best time to visit Saint Barthélemy?

Given the typically tolerable weather conditions in Gustavia, September may not be the ideal time to visit Saint Barthélemy.

Generally speaking, January, February, March, April, May, June, July and December provide perfect weather in Gustavia. The weather in September, on the other hand, tends to be tolerable.

Interested in more climate information?

We have much more information about the climate in Saint Barthélemy.

Weather and climate has detailed information for every country in the world. Are you going to Saint Barthélemy? Get detailed 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.