The weather in January in French Guiana
It's warm in January in French Guiana with an average temperature of 29°C. Temperatures this month range from a low of 29°C to a high of 30°C. At night, you can expect temperatures between 23°C and 24°C.
Looking for sun? January isn’t a good month to be in French Guiana. 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 January for 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 33°C in 2021, French Guiana reached the highest temperature in January over the past 10 years. The lowest daytime temperature in this month was 22°C in 2023. The extreme nighttime temperatures ranged from a lowest recorded value of 17°C to a highest value of 26°C.
Rainfall amount
In January, there is an average of 284 mm of precipitation, spread over 26 days. The wind speed is around 4 Bft, mostly coming from the Northeast.
Daily weather in January for French Guiana
Click on any day in January to get detailed info about the usual weather on that day in French Guiana. Check out the historical temperatures and precipitation over the past 10 years on this day.
January weather comparison
| French Guiana | New York | |
|---|---|---|
| Average temperature | 29°C | 5°C |
| Max. temperature | 30°C | 11°C |
| Min. temperature | 23°C | -5°C |
| Total precipitation | 284 mm | 97 mm |
| Rainy days | 26 days | 12 days |
Start of January
The month of January starts in French Guiana with hot temps, averaging around 30°C during the day and nights around 24°C.
Mid January
By mid-January, daytime temps stay steady at around 30°C, with nights around 24°C. There’s a high chance of precipitation during this time.
End of January
By the end of January, the average daytime temperature in French Guiana is around 29°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 French Guiana for all months and discover the best travel time
The climate in French Guiana is based on weather data from Cayenne. Other spots might have different weather. You can check out all destinations in French Guiana to get the full picture of the climate.
Temperature charts
These charts show the average temperatures in January in French Guiana. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in January in French Guiana
Temperature in January in French Guiana over the years
Precipitation charts
These charts show the average amount of precipitation in January in 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 January in French Guiana
Total precipitation in January in French Guiana over the years
Daily UV index in January in French Guiana
This chart shows the average daily UV index in January in French Guiana, 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 January in French Guiana
Have you been to French Guiana in January?
Share your weather experience in January in French Guiana.
Average weather in French Guiana by month
Click on a month below to see detailed weather info for French Guiana. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.