French Guiana weather, climate and best time to visit

Best time to visit French Guiana

The best time to visit in French Guiana is in March and June until November, when you will have a warm temperature and limited till mediocre rainfall. The highest average temperature in in French Guiana is 32°C in September and the lowest is 28°C in January.

French Guiana has the tropical monsoon climate prevailing. If you want to know what the average temperature is in in French Guiana or when most precipitation (rain or snow) falls, you can find a quick overview below. This way, you are well prepared. Our average monthly climate data is based on data from the past 30 years.

Average weather French Guiana by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Temperature (°C) 28 28 28 28 29 29 30 31 32 32 31 29
Precipitation (mm) 155 168 123 162 192 138 90 47 22 26 65 170
Climate data from city: Cayenne

Travel and stay French Guiana

Looking to book a flight to French Guiana? Hop on one of these airlines.

14 day weather forecast French Guiana

The weather for in French Guiana will be 31° till 32° degrees in the next 14 days with every day chance of light rain showers or even quite a bit of rain.

The weather forecast for French Guiana is based on the weather conditions in the city of Cayenne.

Weather forecast this week

Sunday 19 Sep Precip Chance Wind UV
31°
24°
5.3 mm 65% 2 m/s 8
Monday 20 Sep Precip Chance Wind UV
31°
24°
0.6 mm 15% 3 m/s 7
Tuesday 21 Sep Precip Chance Wind UV
32°
24°
3.1 mm 50% 3 m/s 11
Wednesday 22 Sep Precip Chance Wind UV
31°
24°
9.4 mm 75% 2 m/s 7
Thursday 23 Sep Precip Chance Wind UV
31°
24°
4.1 mm 60% 2 m/s 4
Friday 24 Sep Precip Chance Wind UV
31°
26°
3.4 mm 55% 3 m/s 8
Saturday 25 Sep Precip Chance Wind UV
30°
23°
10.9 mm 80% 2 m/s 4

Weather forecast next week

Sunday 26 Sep Precip Chance Wind UV
32°
23°
10.4 mm 80% 2 m/s 10
Monday 27 Sep Precip Chance Wind UV
32°
24°
2.1 mm 40% 3 m/s 11
Tuesday 28 Sep Precip Chance Wind UV
32°
23°
0.4 mm 15% 3 m/s 11
Wednesday 29 Sep Precip Chance Wind UV
31°
24°
0.2 mm 20% 2 m/s 5
Thursday 30 Sep Precip Chance Wind UV
31°
23°
1.9 mm 40% 3 m/s 5
Friday 1 Oct Precip Chance Wind UV
29°
24°
11.9 mm 80% 2 m/s 2
Saturday 2 Oct Precip Chance Wind UV
32°
23°
0.6 mm 15% 3 m/s 5

Climate French Guiana

French Guiana has the tropical monsoon climate prevailing. You have high temperatures and a lot of rainfall throughout the year. The average annual temperature for French Guiana is 29° degrees and there is about 1357 mm of rain in a year. It is dry for 67 days a year with an average humidity of 81% and an UV-index of 7.

Climate table of French Guiana

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°C) 28 28 28 28 29 29 30 31 32 32 31 29
Night temp. (°C) 24 24 24 25 25 24 24 24 25 25 25 24
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (mm) 155 168 123 162 192 138 90 47 22 26 65 170
Days with rain 28 26 27 27 29 28 26 17 12 11 16 25
Dry days 3 2 4 3 2 2 5 14 18 20 14 6
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 7 6 6 7 8 8 9 9 9 9 9 8
Wind force (Bft) 3 3 3 3 2 2 2 2 2 2 2 3
UV-index 6 6 6 6 6 7 7 7 7 7 7 6
Climate data from city: Cayenne

French Guiana weather by month

What is the average weather like in a given month for French Guiana? Let's find out! Click on a month to check all the monthly averages for sunshine, temperature highs and lows, percentage chance of rain per day, snowfall accumulation and number of rainy days.

Weather experiences French Guiana

Already been to French Guiana?

Share your experience of the French Guiana weather and get a chance to win $150!

Your email will not be included in the review and will not be passed on to third parties.

By submitting the data you agree to our privacy policy

Frequently asked questions

Where is French Guiana?

French Guiana lies in a straight line about 8,570 km from New Zealand (Cape Town → Cayenne).

How long is the flight to French Guiana?

The flight time from Cape Town International Airport to French Guiana is approximately 12 hours.

How many inhabitants are there in French Guiana?

French Guiana has approximately 281,612 inhabitants.

How big is French Guiana?

The area of French Guiana is around 83,534 km². It is 15x smaller than New Zealand.

What is the capital of French Guiana?

The capital of French Guiana is Cayenne.

What is the currency of French Guiana?

In French Guiana the Euro (EUR) is used to pay.

Exchange rates on 19 September 2021

  • 1 Euro = 0.055 South African rand
  • 1 South African rand = 18.32 Euro
  • 10 Euro = 0.546 South African rand
  • 10 South African rand = 183.22 Euro
  • 100 Euro = 5.46 South African rand
  • 100 South African rand = 1,832.19 Euro

What is the area code of French Guiana?

The area code to call French Guiana is +594.