
Current water temperature on the French Guiana coast. Forecast of changes in water temperature. Historical data.
Water temperature in French Guiana today
Most popular locations in French Guiana over the past week
Conditions of sea water on beaches in French Guiana
Now in all beaches in French Guiana, the water is very warm and comfortable for swimming.
The water temperature in French Guiana has increased both over the past 10 days and over a month.

Today the warmest water in French Guiana is recorded in Kourou. Its value in this location is 84°F. And the coldest one is in Remire Montjoly, its value 83°F.
The trend can be seen on the graph. It shows the change in average sea surface temperature over the past two months.
For the two most popular locations for swimming in French Guiana, the graphs of changes in the average water temperature throughout the year are as follows:
We process, analyze and store data for every beach and city in French Guiana. Below is a table with current weather data and trends in some places of the country.
City | Water | Air | ||
Kourou | 84°F | ![]() ![]() | 81°F | ![]() |
Cayenne | 83°F | ![]() ![]() | 81°F | ![]() |
Mana | 83°F | ![]() ![]() | 80°F | ![]() |
Remire Montjoly | 83°F | ![]() ![]() | 81°F | ![]() |
Les Hattes | 83°F | ![]() ![]() | 80°F | ![]() |
Climate in French Guiana

French Guiana is located in South America. The country is washed by the Atlantic Ocean. French Guiana is a small country. To determine the temperature of the water in it, we monitor only four settlements.
Subequatorial, hot and humid. Monthly average temperatures fluctuate between + 25°C and + 28°C, while in the summer, values in the range + 34-37°C are not uncommon. Precipitation is over 3000 mm per year, mainly from January to May-June. Humidity is extremely high all year round, even in the dry period from July-August to December, it can reach 100%. In the Cayenne region and on the Atlantic coast of Guiana, humidity is not as depressing as in the interior, but it is just as difficult to tolerate for a European.
French Guiana: regions

French Guiana: oceans and seas
We monitor the following oceans and seas that wash the country. Just go to the page for a specific reservoir and see the temperature in all settlements on the coast.