French Guiana in december: average Weather, Temperature and Climate, Where to go?
Weather in French Guyana in december 2026
In this section, check out the weather forecast for december for most popular cities in French Guiana. These predictions are statistics for the month of december from weather reports for over 10 years. The percentage indicates the possibility of having the weather indicated.
Average weather in december in Cayenne
tolerable weather UV index: 7
Weather at 6am
77°F
Moderate rain at times
52% of time
20%
19%
7%
Weather at 12pm
85°F
Moderate rain at times
50% of time
29%
13%
9%
Weather at 6pm
81°F
Moderate rain at times
53% of time
19%
18%
10%
Weather at 3am
77°F
33%
31%
21%
10%
Where to go in French Guyana in december?
Where to go in French Guyana in december: destination map
perfect weather
good
tolerable
bad
very bad
Where should you go in French Guyana in december when it comes to the weather?
Remember:
The climate in French Guyana in december ranges from good to bad depending on the region and city.
That month is not the best month to travel to in French Guiana. The weather everywhere is OK but just acceptable: in Maripasoula, Saint-Laurent-du-Maroni, Sinnamary, Kourou, Roura, Awala-Yalimapo and Cayenne. The sun is not there all the time and you may be faced the rain often. However, if you don't plan a beach and relaxation trip in French Guiana but rather city tours or a trek, this climate could be appropriate. In addition, there are surely fewer tourists at this time of year.
Climate in French Guyana in december
Climate in Cayenne in december
In the month of december, the mean temperature in Cayenne is 81°F (maximum temperature is 85°F and minimum temperature is 77°F). The climate is very hot in that locality in this month. With 16.6in over 18 days, the weather is rather to rain throughout your journey. So remember to bring clothes for rain.
With proper weather, december is okay (but not the best month) for traveling in this city in French Guiana.
| December | |||
| Average temperature | 81°F | ||
| Highest temperature | 85°F | ||
| Lowest temperature | 77°F | ||
| Sea temperature | 83°F | ||
| Rainfall | 16.6in | ||
| Number of days with rainfall | 18 day(s) (59%) | ||
| Humidity | 91% | ||
| Daily sunshine hours | 10 | ||
| Cloud cover | 49% | ||
| Length of day | 11:51 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Kourou in december
In the month of december, maximum temperature is 85°F and minimum temperature is 77°F (for an average temperature of 81°F). The climate is burning there in the month of december. With 16.9in over 19 days, the weather is rather to rain for your holidays. So remember to bring Rain coats.
With proper weather, december is okay (but not good month) for traveling in this city in French Guiana.
| December | |||
| Average temperature | 81°F | ||
| Highest temperature | 85°F | ||
| Lowest temperature | 77°F | ||
| Sea temperature | 83°F | ||
| Rainfall | 16.9in | ||
| Number of days with rainfall | 19 day(s) (61%) | ||
| Humidity | 90% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 47% | ||
| Length of day | 11:50 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Mana in december
In the month of december, the mean temperature in Mana is 81°F (maximum temperature is 88°F and minimum temperature is 74°F). The climate is very hot in this location in this month. With 7.5in over 11 days, rain may occur during your holidays. But this is pretty moderate and you will not be too bothered by it.
With a correct weather, the month of december is okay (but not the best month) for traveling in this locality in French Guiana.
| December | |||
| Average temperature | 81°F | ||
| Highest temperature | 88°F | ||
| Lowest temperature | 74°F | ||
| Sea temperature | 83°F | ||
| Rainfall | 7.5in | ||
| Number of days with rainfall | 11 day(s) (35%) | ||
| Humidity | 97% | ||
| Daily sunshine hours | 10 | ||
| Cloud cover | 55% | ||
| Length of day | 11:48 | ||
| Our opinion at whereandwhen.net | good |
Climate in Maripasoula in december
In december, maximum temperature is 90°F and minimum temperature is 70°F (for an average temperature of 81°F). The climate is very hot in this city in december. With 8.4in over 13 days, rainfall can happen during your vacations. But this is pretty moderate and you will not be too bothered by it.
With a correct weather, december is okay (but not the best time) for traveling in this city in French Guiana.
| December | |||
| Average temperature | 81°F | ||
| Highest temperature | 90°F | ||
| Lowest temperature | 70°F | ||
| Rainfall | 8.4in | ||
| Number of days with rainfall | 13 day(s) (43%) | ||
| Humidity | 100% | ||
| Daily sunshine hours | 9 | ||
| Cloud cover | 68% | ||
| Length of day | 11:55 | ||
| Our opinion at whereandwhen.net | bad |
Climate in Apatou in december
In the month of december, maximum temperature is 88°F and minimum temperature is 74°F (for an average temperature of 81°F). The climate is very hot in this location in the month of december. With 7.5in over 11 days, rain may occur throughout your stay. But this is rather reasonably and you will not be too bothered by it.
With proper weather, the month of december is okay (but not good month) for traveling in Apatou.
| December | |||
| Average temperature | 81°F | ||
| Highest temperature | 88°F | ||
| Lowest temperature | 74°F | ||
| Rainfall | 7.5in | ||
| Number of days with rainfall | 11 day(s) (35%) | ||
| Humidity | 97% | ||
| Daily sunshine hours | 10 | ||
| Cloud cover | 55% | ||
| Length of day | 11:49 | ||
| Our opinion at whereandwhen.net | good |
All cities in French Guyana in december
| Cayenne in december | tolerable weather |
| Kourou in december | tolerable weather |
| Mana in december | good weather |
| Maripasoula in december | bad weather |
| Apatou in december | good weather |
| Awala-Yalimapo in december | good weather |
| Cacao in december | tolerable weather |
| Camopi in december | tolerable weather |
| Îles du Salut in december | tolerable weather |
| Iracoubo in december | tolerable weather |
| Macouria in december | tolerable weather |
| Montagne des Singes in december | tolerable weather |
| Ouanary in december | tolerable weather |
| Régina in december | tolerable weather |
| Rémire-Montjoly in december | tolerable weather |
| Roura in december | tolerable weather |
| Saint George de l’Oyapock in december | tolerable weather |
| Saint-Laurent-du-Maroni in december | good weather |
| Saül in december | bad weather |
| Sinnamary in december | tolerable weather |
Weather data for French Guiana in december:
Weather data for French Guiana in december is derived from an average of the weather forecast since 2009 in French Guyana. There is a margin of error and these forecasts are to be considered as general information only. The weather in French Guyana can vary slightly from year to year, but these predictions should limit surprises. So you can pack your bags and check when is the best time to go to French Guyana.