French Guiana weather in December

Are you planning a trip to French Guiana in December and wondering what kind of weather to expect? Look no further than this page for all the information you need.

What is the weather like in French Guiana in December?

The weather conditions in French Guiana in December vary from poor to unpleasant depending on the destination.

During December in French Guiana, the average maximum temperature varies from high in Kourou with 27°C (81°F) to very high in Maripasoula with 30°C (86°F).

Precipitation in December varies from heavy in Maripasoula with an average of 199mm (7.8 inches) of rainfall to heavy in Cayenne with 280mm (11 inches). It is also generally a moderately sunny time of year with an average of 140 hours of sunshine in Kourou during the entire month.

To learn more about the weather conditions in specific areas of French Guiana, check out the map below.

Where to go in French Guiana in December

Find the average weather conditions in December 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 20-29ºC / 68-84ºF and not too much precipitation (less than 90mm / 3.5inches a month).

Popular destinations in French Guiana

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

Average weather in Kourou

In December Kourou generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 25°C (77°F) and heavy monthly rainfall. So on average the conditions are poor that month.

Kourou
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
28°C / 83°F 
25°C / 77°F 
218 hours 
114mm / 4.5" 
11 days 
27°C / 81°F 
25°C / 77°F 
140 hours 
271mm / 11" 
18 days 
poor 
January   >> January
>>  
27°C / 80°F 
25°C / 76°F 
94 hours 
298mm / 12" 
20 days 
poor 
Climate in Kourou

Average weather in Matoury

In December Matoury generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 23°C (73°F) and heavy monthly rainfall. So on average the conditions are poor that month.

Matoury
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
32°C / 89°F 
23°C / 73°F 
208 hours 
116mm / 4.6" 
12 days 
30°C / 86°F 
23°C / 73°F 
152 hours 
278mm / 11" 
20 days 
poor 
January   >> January
>>  
29°C / 84°F 
23°C / 73°F 
105 hours 
368mm / 14" 
24 days 
poor 
Climate in Matoury

Average weather in Cayenne

In December Cayenne generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 23°C (73°F) and heavy monthly rainfall. So on average the conditions are poor that month.

Cayenne
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
31°C / 89°F 
23°C / 73°F 
208 hours 
117mm / 4.6" 
12 days 
30°C / 86°F 
23°C / 73°F 
152 hours 
280mm / 11" 
19 days 
poor 
January   >> January
>>  
29°C / 84°F 
23°C / 73°F 
105 hours 
368mm / 14" 
24 days 
poor 
Climate in Cayenne

Average weather in Maripasoula

In December Maripasoula generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 22°C (71°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

Maripasoula
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
32°C / 89°F 
22°C / 71°F 
226 hours 
88mm / 3.5" 
10 days 
30°C / 86°F 
22°C / 71°F 
183 hours 
199mm / 7.8" 
17 days 
January   >> January
>>  
29°C / 84°F 
22°C / 71°F 
148 hours 
255mm / 10" 
21 days 
Climate in Maripasoula

Average weather in Saint Georges

In December Saint Georges generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 23°C (73°F) and heavy monthly rainfall. So on average the conditions are poor that month.

Saint Georges
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
31°C / 88°F 
23°C / 73°F 
210 hours 
91mm / 3.6" 
11 days 
30°C / 86°F 
23°C / 73°F 
149 hours 
240mm / 9.4" 
18 days 
poor 
January   >> January
>>  
29°C / 84°F 
22°C / 72°F 
109 hours 
347mm / 14" 
24 days 
poor 
Climate in Saint Georges

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

Is December the best time to go to French Guiana?

In our opinion December is not the best time to visit French Guiana with commonly poor weather in Kourou.

On average the best time to visit French Guiana is in August, September and October with generally perfect weather in Kourou. The worst months are January, March, April, May, June and December that can have poor weather conditions.

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.