French Guiana

French Guiana Weather in August

Average temperatures, rainfall, sunshine and the best places to visit in French Guiana in August.

🔎
Cayenne Kourou Matoury Cayenne

Planning a journey to French Guiana this August and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What to Expect in French Guiana in August

August in French Guiana generally has very warm temperatures, with precipitation levels ranging from moderate to high.

Temperatures

The average maximum temperatures are very warm and range from 31°C (88°F) in Kourou to 33°C (91°F) in Maripasoula. Nighttime temperatures generally drop to 22°C (72°F) in Maripasoula and 24°C (75°F) in Kourou. The temperatures mentioned for both day and night are typical averages. However some days might get even hotter. It's best to stay prepared by wearing cloths suitable for the warmth.

To explore the conditions in French Guiana in more detail, check the map below.

Precipitation

In August, precipitation varies across different areas. From moderate rainfall in Maripasoula with an average of 63 mm (2.5 in) to high rainfall in Cayenne with 130 mm (5.1 in).

Average sunshine

Sunshine is generally plentiful throughout many areas. Kourou enjoys about 230 hours of sunlight, ideal for those seeking sunny weather.

Explore French Guiana by month

Pick a month to see the average temperature, rainfall and sunshine in French Guiana - and find the best time to visit. (based on Cayenne)

January29°C (84°F) February29°C (84°F) March29°C (84°F) April30°C (86°F) May30°C (86°F) June30°C (86°F) July30°C (86°F) August31°C (88°F) This monthSeptember32°C (90°F) October32°C (90°F) November31°C (88°F) December30°C (86°F)
Best Time to Visit French Guiana →

Best Places to Visit in French Guiana in August

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across French Guiana.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in French Guiana

What is the weather like in August for some of the most popular destinations in French Guiana?

Temperature range in French Guiana (August)

Precipitation variation in French Guiana (August)

Kourou

In August Kourou generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 24°C (75°F) and high monthly rainfall. So on average the conditions are good that month.

« July
August
September »
July
August
September
Max temperature
30°C (86°F)
31°C (88°F)
31°C (88°F)
Min temperature
24°C (75°F)
24°C (75°F)
25°C (77°F)
Monthly sun hours
197 hours
230 hours
255 hours
Monthly rainfall
228 mm (9 in)
110 mm (4.3 in)
54 mm (2.1 in)
Monthly rainy days
18 days
10 days
5 days
Weather conditions
less favorable
good
very good
Climate in Kourou →

Matoury

In August Matoury generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 24°C (75°F) and high monthly rainfall. So on average the conditions are good that month.

« July
August
September »
July
August
September
Max temperature
31°C (88°F)
32°C (90°F)
32°C (90°F)
Min temperature
23°C (73°F)
24°C (75°F)
24°C (75°F)
Monthly sun hours
202 hours
235 hours
255 hours
Monthly rainfall
239 mm (9.4 in)
123 mm (4.8 in)
62 mm (2.4 in)
Monthly rainy days
18 days
9 days
4 days
Weather conditions
less favorable
good
very good
Climate in Matoury →

Cayenne

In August Cayenne generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 23°C (73°F) and high monthly rainfall. So on average the conditions are good that month.

« July
August
September »
July
August
September
Max temperature
31°C (88°F)
32°C (90°F)
32°C (90°F)
Min temperature
23°C (73°F)
23°C (73°F)
24°C (75°F)
Monthly sun hours
202 hours
235 hours
255 hours
Monthly rainfall
245 mm (9.6 in)
130 mm (5.1 in)
65 mm (2.6 in)
Monthly rainy days
18 days
9 days
5 days
Weather conditions
less favorable
good
very good
Climate in Cayenne →

Maripasoula

In August Maripasoula generally has very high temperatures with maximum daytime temperatures around 33°C (91°F), minimum nighttime temperatures around 22°C (72°F) and moderate monthly rainfall. So on average the conditions are very good that month.

« July
August
September »
July
August
September
Max temperature
31°C (88°F)
33°C (91°F)
34°C (93°F)
Min temperature
22°C (72°F)
22°C (72°F)
23°C (73°F)
Monthly sun hours
206 hours
235 hours
250 hours
Monthly rainfall
116 mm (4.6 in)
63 mm (2.5 in)
32 mm (1.3 in)
Monthly rainy days
20 days
12 days
7 days
Weather conditions
good
very good
good
Climate in Maripasoula →

Saint Georges

In August Saint Georges generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 23°C (73°F) and high monthly rainfall. So on average the conditions are good that month.

« July
August
September »
July
August
September
Max temperature
31°C (88°F)
32°C (90°F)
33°C (91°F)
Min temperature
23°C (73°F)
23°C (73°F)
23°C (73°F)
Monthly sun hours
206 hours
235 hours
246 hours
Monthly rainfall
196 mm (7.7 in)
102 mm (4 in)
42 mm (1.7 in)
Monthly rainy days
19 days
10 days
6 days
Weather conditions
mixed
good
very good
Climate in Saint Georges →

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

Popular cities in August

Day & night temperatures, rainfall and average weather in French Guiana in August.

City Weather Day temp Night temp Rainfall
Cayenne 31°C (88°F) 24°C (75°F) 107 mm (4.2 in)
Kourou 31°C (88°F) 24°C (75°F) 110 mm (4.3 in)
Matoury 32°C (90°F) 24°C (75°F) 123 mm (4.8 in)
Cayenne 32°C (90°F) 23°C (73°F) 130 mm (5.1 in)
Saint Georges 32°C (90°F) 23°C (73°F) 102 mm (4 in)
Maripasoula 33°C (91°F) 22°C (72°F) 63 mm (2.5 in)

French Guiana weather in August: frequently asked questions

What is the weather like in French Guiana in August?

August in French Guiana brings mixed weather. In Kourou, daytime temperatures are typically around 31°C (88°F) and nighttime lows hover near 24°C (75°F).

What is the average temperature in French Guiana in August?

Kourou averages a daytime maximum of 31°C (88°F) in August, with overnight lows close to 24°C (75°F).

Does French Guiana get a lot of rain in August?

Yes, August tends to be a wetter month in French Guiana. Average rainfall in Kourou sits around 110 mm (4.3 in).

Is August a Good Time to Visit French Guiana?

Given the typically good weather conditions in Kourou, August might be a good time to visit French Guiana.

Generally speaking, March, September and October provide good weather in Kourou. The weather in April, May, June, July and December, on the other hand, tends to be less favorable.

Interested in more climate information?

We have much more information about the climate in French Guiana.

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 travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.

Discover French Guiana

Very few tourists make it to this small South American country. It's a shame, because nature in French Guiana is still pure and unspoiled.

Must visit in French Guiana →