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French GuianaThe weather in December in Cayenne
It's hot in December in Cayenne with an average temperature of 31°C. Temperatures this month range from a low of 29°C to a high of 31°C. At night, you can expect temperatures between 23°C and 24°C.
Looking for sun? December isn’t a good month to be in Cayenne. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in December for Cayenne, French Guiana. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 36°C in 2023, Cayenne reached the highest temperature in December over the past 10 years. The lowest daytime temperature in this month was 24°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 20°C to a highest value of 26°C.
Rainfall amount
In December, there is an average of 338 mm of precipitation, spread over 28 days. The wind speed is around 4 Bft, mostly coming from the East.
Daily weather in December for Cayenne
Click on any day in December to get detailed info about the usual weather on that day in Cayenne. Check out the historical temperatures and precipitation over the past 10 years on this day.
December weather comparison
| Cayenne | New York | |
|---|---|---|
| Average temperature | 31°C | 9°C |
| Max. temperature | 31°C | 12°C |
| Min. temperature | 23°C | -5°C |
| Total precipitation | 338 mm | 133 mm |
| Rainy days | 28 days | 17 days |
Start of December
The month of December starts in Cayenne with hot temps, averaging around 31°C during the day and nights around 24°C.
Mid December
By mid-December, daytime temps stay steady at around 31°C, with nights around 24°C. There’s a high chance of precipitation during this time.
End of December
By the end of December, the average daytime temperature in Cayenne is around 30°C, while nighttime temps are about 24°C. There’s a significant chance of many days with precipitation.
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UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Cayenne for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in December in Cayenne, French Guiana. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in December in Cayenne
Temperature in December in Cayenne over the years
Precipitation charts
These charts show the average amount of precipitation in December in Cayenne, French Guiana. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in December in Cayenne
Total precipitation in December in Cayenne over the years
Daily UV index in December in Cayenne
This chart shows the average daily UV index in December in Cayenne, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in December in Cayenne
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Average weather in Cayenne by month
Click on a month below to see detailed weather info for Cayenne. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.