Cayenne weather in September (French Guiana)

This month is known as a warm month. The average maximum daytime temperature in Cayenne in September lies at 31.8°C (89.24°F). The average minimum temperature goes down to around 22.3°C (72.14°F) (often the minimum temperature is noted at night).

Rainfall during September is moderate with an average of 50mm (1.9 inches). There are generally around 7 rainy days. If you enjoy blue skies and sunshine, then this is a great time to go to Cayenne with 255 hours of sun during the entire month.

 

Cayenne, monthly averages in September

Show in Fahrenheit

Min Temperature 22 °C  

Max Temperature 31 °C  

Water Temperature 28 °C *  

Chance of Rain 25%  

Precipitation 49mm  

Rainy days 8 days  

Humidity 71% *  

Sunshine 255 hrs *  

Where to stay in Cayenne

Booking.com

Where to go in French Guiana in September

Find out more about the weather in French Guiana in September and which places have the best weather conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

Map not visible? Whoops sorry! Please refresh the page.

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).

So what to wear in September? Visitors traveling to Cayenne might want to wear airy clothing, t-shirts and other summer cloths. Shorts for men made of cotton or linen are good options for staying cool on a hot day. With a water temperature of around 28.0°C (82.4°F), this is a great month to swim so bring your swimwear.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in September.

Swimming

10/10

Cycling

8/10

Walking

8/10

Barbeque

10/10

Camping

10/10

Outdoor sports

8/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Cayenne.

Our site offers climate and forecast data for every country in the world. Are you going to French Guiana? On this website you can find 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 climate conditions. Find out where to go with our weather planner.