Weather in December in French Guiana

Many people wonder what the weather conditions are in December in French Guiana. Is this month a good time to go to French Guiana? To answer that question we created this page with all the information you need.

What is the weather like in French Guiana in December?

The weather in French Guiana in December ranges from poor to tolerable depending on the destination.

You can expect very warm maximum average daytime temperatures around 30°C (86°F) and nighttime temperatures around 23°C (73°F) in Cayenne. These night and day temperatures are an average and some days may be even warmer. So be prepared and bring light clothes.

December is a rainy month with an average rainfall around 135mm (5.3inch) in Cayenne. It is also generally a moderate sunny month with an average of 140 hours of sunshine in Cayenne during the whole month.

We invite you to have a look at the map below to find out more about the different weather conditions per location in French Guiana.

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.

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 / 3.5inch a month).

Popular destinations in French Guiana

What is the weather like in December for the 3 most popular destinations in French Guiana?

Average weather in Cayenne

In December Cayenne generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 23°C (73°F) and high monthly rainfall. So on average the conditions are tolerable 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
32°C / 89°F 
22°C / 72°F 
218 hours 
65mm / 2.6inch 
12 days 
30°C / 86°F 
23°C / 73°F 
140 hours 
135mm / 5.3inch 
22 days 
January   >> January
>>  
29°C / 84°F 
23°C / 74°F 
94 hours 
452mm / 18inch 
23 days 
poor 
Climate in Cayenne

Average weather in Kourou

In December Kourou generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 23°C (73°F) and high monthly rainfall. So on average the conditions are tolerable 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
32°C / 89°F 
22°C / 72°F 
218 hours 
65mm / 2.6inch 
12 days 
30°C / 86°F 
23°C / 73°F 
140 hours 
135mm / 5.3inch 
22 days 
January   >> January
>>  
29°C / 84°F 
23°C / 74°F 
94 hours 
452mm / 18inch 
23 days 
poor 
Climate in Kourou

Average weather in Matoury

In December Matoury generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 22°C (72°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
30°C / 86°F 
22°C / 72°F 
225 hours 
154mm / 6.1inch 
15 days 
29°C / 84°F 
22°C / 72°F 
166 hours 
359mm / 14inch 
24 days 
poor 
January   >> January
>>  
28°C / 82°F 
22°C / 72°F 
124 hours 
439mm / 17inch 
27 days 
poor 
Climate in Matoury

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 a good time to visit French Guiana with commonly tolerable weather in Cayenne. However, the weather conditions may vary depending on your destination.

On average the best time to visit French Guiana is in October and November with generally pleasant weather in Cayenne. The worst months are January, February, March, April, May, June, July and August 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 almost all countries 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 suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.