French Guiana weather in May

Many people wonder what kind of weather they can expect in May 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 May?

The weather conditions in French Guiana in May are generally poor.

During May in French Guiana the average maximum daytime temperatures are high and range from 27°C (81°F) in Kourou to 30°C (85°F) in Matoury.

Precipitation in May varies from heavy in Maripasoula with an average of 400mm (16 inches) of rainfall to heavy in Cayenne with 521mm (20 inches). It is the wettest month of the year in Kourou. It is also generally a moderately sunny time of year with an average of 119 hours of sunshine in Kourou during the entire month.

We invite you to have a look at the map below to discover more about the various weather conditions around French Guiana.

Where to go in French Guiana in May

Find the average weather conditions in May 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 / 3.5inches a month).

Popular destinations in French Guiana

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

Average weather in Kourou

In May 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
<<   April April
<<  
27°C / 81°F 
25°C / 77°F 
119 hours 
311mm / 12" 
20 days 
poor 
27°C / 81°F 
25°C / 77°F 
119 hours 
477mm / 19" 
26 days 
poor 
June   >> June
>>  
27°C / 81°F 
25°C / 76°F 
149 hours 
373mm / 15" 
23 days 
poor 
Climate in Kourou

Average weather in Matoury

In May Matoury generally has high temperatures with maximum daytime temperatures around 30°C (85°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
<<   April April
<<  
30°C / 85°F 
23°C / 73°F 
122 hours 
444mm / 17" 
26 days 
poor 
30°C / 85°F 
23°C / 73°F 
122 hours 
514mm / 20" 
28 days 
poor 
June   >> June
>>  
30°C / 86°F 
23°C / 73°F 
155 hours 
338mm / 13" 
24 days 
poor 
Climate in Matoury

Average weather in Cayenne

In May Cayenne generally has high temperatures with maximum daytime temperatures around 30°C (85°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
<<   April April
<<  
30°C / 85°F 
23°C / 73°F 
122 hours 
445mm / 18" 
26 days 
poor 
30°C / 85°F 
23°C / 73°F 
122 hours 
521mm / 20" 
28 days 
poor 
June   >> June
>>  
30°C / 86°F 
23°C / 73°F 
155 hours 
343mm / 14" 
24 days 
poor 
Climate in Cayenne

Average weather in Maripasoula

In May Maripasoula generally has high temperatures with maximum daytime temperatures around 30°C (85°F), minimum nighttime temperatures around 22°C (72°F) and heavy monthly rainfall. So on average the conditions are poor 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
<<   April April
<<  
30°C / 85°F 
22°C / 72°F 
156 hours 
343mm / 13" 
24 days 
poor 
30°C / 85°F 
22°C / 72°F 
153 hours 
400mm / 16" 
26 days 
poor 
June   >> June
>>  
30°C / 86°F 
22°C / 71°F 
166 hours 
270mm / 11" 
23 days 
poor 
Climate in Maripasoula

Average weather in Saint Georges

In May Saint Georges generally has high temperatures with maximum daytime temperatures around 29°C (85°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
<<   April April
<<  
29°C / 85°F 
23°C / 73°F 
118 hours 
445mm / 18" 
26 days 
poor 
29°C / 85°F 
23°C / 73°F 
111 hours 
501mm / 20" 
28 days 
poor 
June   >> June
>>  
30°C / 85°F 
22°C / 72°F 
146 hours 
318mm / 13" 
24 days 
poor 
Climate in Saint Georges

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

Is May the best time to go to French Guiana?

In our opinion May 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 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.