French Guiana weather in September

Planning a getaway to French Guiana this September and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What is the weather like in French Guiana in September?

September in French Guiana generally has very warm temperatures, with moderate precipitation.

The average maximum temperatures are very warm and range from 31°C in Kourou to 34°C in Maripasoula. Nighttime temperatures generally drop to 23°C in Maripasoula and 25°C in Kourou. 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.

In September, precipitation varies across different areas. From moderate rainfall in Maripasoula with an average of 32 mm to moderate rainfall in Cayenne with 65 mm. In Kourou, this particular month consistently records the lowest levels of rainfall, making it the driest period throughout the entire year. Meanwhile, Kourou enjoys close to 255 hours of sunlight. This means it's a great month if you prefer bright and sunny days.

For specific regional insights in French Guiana for September, refer to the map provided below. For an in-depth overview of the yearly weather conditions, do visit our French Guiana climate page.

Where to go in French Guiana in September

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

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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).

Popular destinations in French Guiana

What is the weather like in September for the 5 most popular destinations in French Guiana?

Average weather in Kourou

In September Kourou generally has very high temperatures with maximum daytime temperatures around 31°C, minimum nighttime temperatures around 25°C and moderate monthly rainfall. So on average the conditions are pleasant that month.

Kourou
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
<<  
31°C 
24°C 
230 hours 
110 mm 
10 days 
31°C 
25°C 
255 hours 
54 mm 
5 days 
October   >> October
>>  
31°C 
25°C 
251 hours 
64 mm 
5 days 
Climate in Kourou

Average weather in Matoury

In September Matoury generally has very high temperatures with maximum daytime temperatures around 32°C, minimum nighttime temperatures around 24°C and moderate monthly rainfall. So on average the conditions are pleasant that month.

Matoury
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
<<  
32°C 
24°C 
235 hours 
123 mm 
9 days 
32°C 
24°C 
255 hours 
62 mm 
4 days 
October   >> October
>>  
32°C 
24°C 
256 hours 
72 mm 
4 days 
Climate in Matoury

Average weather in Cayenne

In September Cayenne generally has very high temperatures with maximum daytime temperatures around 32°C, minimum nighttime temperatures around 24°C and moderate monthly rainfall. So on average the conditions are pleasant that month.

Cayenne
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
<<  
32°C 
23°C 
235 hours 
130 mm 
9 days 
32°C 
24°C 
255 hours 
65 mm 
5 days 
October   >> October
>>  
33°C 
24°C 
256 hours 
75 mm 
4 days 
Climate in Cayenne

Average weather in Maripasoula

In September Maripasoula generally has very high temperatures with maximum daytime temperatures around 34°C, minimum nighttime temperatures around 23°C and moderate monthly rainfall. So on average the conditions are tolerable that month.

Maripasoula
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
<<  
33°C 
22°C 
235 hours 
63 mm 
12 days 
34°C 
23°C 
250 hours 
32 mm 
7 days 
October   >> October
>>  
35°C 
23°C 
259 hours 
31 mm 
7 days 
Climate in Maripasoula

Average weather in Saint Georges

In September Saint Georges generally has very high temperatures with maximum daytime temperatures around 33°C, minimum nighttime temperatures around 23°C and moderate monthly rainfall. So on average the conditions are pleasant that month.

Saint Georges
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
<<  
32°C 
23°C 
235 hours 
102 mm 
10 days 
33°C 
23°C 
246 hours 
42 mm 
6 days 
October   >> October
>>  
34°C 
23°C 
249 hours 
47 mm 
5 days 
Climate in Saint Georges

Is your destination not in the list? Have a look at other destinations in French Guiana.

Is September the best time to visit French Guiana?

We consider September to be one of the best times to travel to French Guiana. Typically, the climate in Kourou is pleasant.

Generally speaking, September and October provide pleasant weather in Kourou. On the other hand, the weather in April, May, June, July and December tend to be poor.

Interested in more climate information?

We have much more information about the climate in French Guiana. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to French Guiana? Get detailed historical weather averages for many cities in French Guiana.

    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.