Saint Barthélemy weather in September

Planning a journey to Saint Barthélemy this September and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What is the weather like in Saint Barthélemy in September?

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

You can expect warm maximum daytime temperatures of around 30°C and nighttime temperatures around 27°C in Gustavia. 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.

September is a rainy month with an average rainfall of around 131 mm in Gustavia. 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 a closer look at September's conditions in Saint Barthélemy, see the map below. For a more detailed look at Saint Barthélemy's yearly weather, check out our Saint Barthélemy climate page.

Where to go in Saint Barthélemy in September

Find the average weather conditions in September for the most popular destinations in Saint Barthélemy on the map below. Click on a destination dot for more detailed information.

Map not visible? Whoops sorry! Please refresh the page.
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).

Popular destinations in Saint Barthélemy

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

Average weather in 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

Average weather in 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

Average weather in 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. Interested in the weather conditions in a specific month? Select the month below.

  • January      
  • February      
  • March      
  • April      
  • May      
  • June      
  • July      
  • August      
  • September      
  • October      
  • November      
  • December      
  • 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 climate conditions. Find out where to go with our weather planner.