Average weather for French Guiana in January
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.
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. There are plenty of days with a good chance of precipitation. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
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. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
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.
In January, there is an average of 284 mm of precipitation, spread over 23 days. The wind speed is around 4 Bft, mostly coming from the Northeast.
French Guiana in January |
New York | ||
|---|---|---|---|
 Average temperature |
29°C | 5°C | |
 Max. temperature |
30°C | 11°C | |
| Min. temperature |
29°C | -5°C | |
 Total precipitation |
284 mm | 97 mm | |
| Rainy days |
23 days | 12 days | |
December
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.
Is January a good time to visit French Guiana?
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.
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.
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.
Daily Temperature in January in French Guiana
This chart shows the average daily high and low temperatures in January for French Guiana, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in January in French Guiana
The chart below shows the average daily precipitation in January for French Guiana, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for January, you can expect about 23 days of precipitation in French Guiana.
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.
Temperature in January in French Guiana over the years
This chart shows the average temperature in January in French Guiana, measured in degrees Celsius, over the past few years.
Total precipitation in January in French Guiana over the years
This chart shows the average precipitation in January in French Guiana, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
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.
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.
Or check out the climate of French Guiana for all months at once
