January weather forecast
Dégrad Blanc, French Guiana

January

Weather in January

January, like December, in Dégrad Blanc, French Guiana, is another warm winter month, with temperature in the range of an average low of 20.8°C (69.4°F) and an average high of 29.7°C (85.5°F).

Temperature

Dégrad Blanc indicates an average high-temperature of a moderately hot 29.7°C (85.5°F) in January, showing minor variation from December's 30.8°C (87.4°F). Throughout the month of January, the nighttime temperature dips to an average of 20.8°C (69.4°F).

Heat index

Throughout January, the heat index is evaluated at a very hot 39°C (102.2°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is achieved by amalgamating air temperature with the relative humidity readings. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

The average relative humidity in January in Dégrad Blanc, French Guiana, is 87%.

Rainfall

In January, in Dégrad Blanc, the rain falls for 26.8 days. Throughout January, 86mm (3.39") of precipitation is accumulated. In Dégrad Blanc, during the entire year, the rain falls for 265.5 days and collects up to 1078mm (42.44") of precipitation.

Daylight

The average length of the day in January is 11h and 56min.
On the first day of January, sunrise is at 06:39 and sunset at 18:33. On the last day of the month, sunrise is at 06:47 and sunset at 18:45 -03.

Sunshine

In Dégrad Blanc, the average sunshine in January is 4.9h.

UV index

The months with the lowest UV index in Dégrad Blanc are January, March and December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: An average UV index of 5 in January transforms into this advice:
Guard yourself - An obligation to protect skin and eyes from harm exists. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.

Frequently asked questions

How hot is it in Dégrad Blanc in January?
The high-temperature, in January, in Dégrad Blanc, records 29.7°C (85.5°F), while the low-temperature is 20.8°C (69.4°F). In January, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is evaluated at 39°C (102.2°F).
What is the average humidity in January in Dégrad Blanc?
The average relative humidity in January in Dégrad Blanc is 87%.
How many days does it rain in January in Dégrad Blanc?
In Dégrad Blanc, French Guiana, during January, the rain falls for 26.8 days and regularly aggregates up to 86mm (3.39") of precipitation.
What is the average length of the day in January in Dégrad Blanc?
In January, the average day length in Dégrad Blanc is 11h and 56min.
When is the sunrise / sunset in January in Dégrad Blanc?
On the first day of January in Dégrad Blanc, French Guiana, sunrise is at 06:39 and sunset at 18:33. On the last day of the month, sunrise is at 06:47 and sunset at 18:45 -03.
How many hours of sunshine does Dégrad Blanc have in January?
The average sunshine duration in January in Dégrad Blanc is 4.9h.
What are the months with the lowest UV index in Dégrad Blanc?
January, March and December, with an average maximum UV index of 5, are months with the lowest UV index.
How high is the UV index in January in Dégrad Blanc?
In January, the average daily maximum UV index in Dégrad Blanc, French Guiana, is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in January
Dégrad Blanc, French Guiana
  • Average high temperature in January: 29.7°C

The warmest month (with the highest average high temperature) is October (34.9°C).
The month with the lowest average high temperature is February (29.3°C).

  • Average low temperature in January: 20.8°C

The month with the highest average low temperature is May (21.9°C).
The coldest months (with the lowest average low temperature) are August and September (20.5°C).

Average pressure in January
Dégrad Blanc, French Guiana
  • Average pressure in January: 1011.8mbar

The months with the highest atmospheric pressure are June and July (1013mbar).
The month with the lowest atmospheric pressure is November (1009.4mbar).

Average wind speed in January
Dégrad Blanc, French Guiana
  • Average wind speed in January: 5.1km/h

The windiest months (with the highest average wind speed) are February, March and November (5.3km/h).
The calmest month (with the lowest average wind speed) is July (4.2km/h).

Average humidity in January
Dégrad Blanc, French Guiana
  • Average humidity in January: 87%

The month with the highest relative humidity is May (90%).
The month with the lowest relative humidity is October (72%).

Average rainfall in January
Dégrad Blanc, French Guiana
  • Average rainfall in January: 86mm

The wettest month (with the highest rainfall) is May (192mm).
The driest month (with the least rainfall) is October (21mm).

Average rainfall days in January
Dégrad Blanc, French Guiana
  • Average rainfall days in January: 26.8 days

The months with the highest number of rainy days are January and March (26.8 days).
The month with the least rainy days is October (10.4 days).

Average daylight in January /
Average sunshine in January
Dégrad Blanc, French Guiana
  • Average daylight in January: 11h and 5min

The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).

  • Average sunshine in January: 4h and 5min

The months with the most sunshine are September and October (Average sunshine: 8h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).

Average sunshine days in January
Dégrad Blanc, French Guiana
  • Average sunshine days in January: 2.3 days

The month with the most sunshine days is October (17.3 days).
The month with the least sunshine days is February (1.8 days).

Average UV index in January
Dégrad Blanc, French Guiana
  • Average UV index in January: 5

The months with the highest UV index are August, September, October and November (UV index 7).
The months with the lowest UV index are January, March and December (UV index 5).

Average cloud cover in January
Dégrad Blanc, French Guiana
  • Average cloud cover in January: 76

The month with the most cloud cover is February (Cloud cover 81).
The month with the least cloud cover is October (Cloud cover 44).

Average visibility in January
Dégrad Blanc, French Guiana
  • Average visibility in January: 6km

The month with the highest visibility is October (8km).
The month with the lowest visibility is May (5km).

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