January weather forecast
Bienvenue, French Guiana

Weather in January

January, like December, in Bienvenue, French Guiana, is another warm winter month, with an average temperature varying between 22°C (71.6°F) and 28.4°C (83.1°F).

Temperature

In Bienvenue, the average high-temperature in January is essentially the same as in December - a still warm 28.4°C (83.1°F). In Bienvenue, in January, the average low-temperature is 22°C (71.6°F).

Heat index

The average heat index in January is evaluated at a sweltering 35°C (95°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'apparent temperature', or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like activity, wind, differences in body mass, height, and shape, and clothing affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In January, the average relative humidity in Bienvenue, French Guiana, is 88%.

Rainfall

In January, in Bienvenue, the rain falls for 25.4 days. Throughout January, 92mm (3.62") of precipitation is accumulated. Throughout the year, in Bienvenue, there are 270.6 rainfall days, and 1131mm (44.53") of precipitation is accumulated.

Daylight

In January, the average length of the day in Bienvenue is 11h and 58min.
On the first day of January in Bienvenue, sunrise is at 06:36 and sunset at 18:32. On the last day of the month, sunrise is at 06:44 and sunset at 18:43 -03.

Sunshine

In January, the average sunshine is 5.2h.

UV index

January through July, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 6 in January interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in January in Bienvenue?

The average high-temperature, in January, in Bienvenue, French Guiana, is 28.4°C (83.1°F), while the average low-temperature is 22°C (71.6°F). in January, the average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, is evaluated at 35°C (95°F).

What is the average humidity in January in Bienvenue?

In Bienvenue, French Guiana, the average relative humidity in January is 88%.

How much does it rain in Bienvenue in January?

In Bienvenue, in January, it is raining for 25.4 days, with typically 92mm (3.62") of accumulated precipitation.

What is the average length of the day in January in Bienvenue?

In Bienvenue, the average day length in January is 11h and 58min.

When are sunrise and sunset in January in Bienvenue?

In January, on the first day of the month, sunrise is at 06:36 and sunset at 18:32. On the last day of the month, in Bienvenue, sunrise is at 06:44 and sunset at 18:43 -03.

How many hours of sunshine does Bienvenue have in January?

The average sunshine duration in January in Bienvenue, French Guiana, is 5.2h.

What are the months with the lowest UV index in Bienvenue?

The months with the lowest UV index in Bienvenue are January through July, November and December, with an average maximum UV index of 6.

How high is the UV index in January in Bienvenue?

In Bienvenue, French Guiana, the average daily maximum UV index in January is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.

Average temperature in January
Bienvenue, French Guiana

Average temperature in January - Bienvenue, French Guiana
  • Average high temperature in January: 28.4°C

The warmest month (with the highest average high temperature) is October (34.3°C).
The month with the lowest average high temperature is February (27.9°C).

  • Average low temperature in January: 22°C

The month with the highest average low temperature is April (22.4°C).
The coldest month (with the lowest average low temperature) is July (21.3°C).

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Average pressure in January
Bienvenue, French Guiana

Average pressure in January - Bienvenue, French Guiana
  • Average pressure in January: 1011.7mbar

The month with the highest atmospheric pressure is July (1013.2mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).

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Average wind speed in January
Bienvenue, French Guiana

Average wind speed in January - Bienvenue, French Guiana
  • Average wind speed in January: 5.6km/h

The windiest month (with the highest average wind speed) is October (6.1km/h).
The calmest month (with the lowest average wind speed) is June (4.2km/h).

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Average humidity in January
Bienvenue, French Guiana

Average humidity in January - Bienvenue, French Guiana
  • Average humidity in January: 88%

The month with the highest relative humidity is May (91%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in January
Bienvenue, French Guiana

Average rainfall in January - Bienvenue, French Guiana
  • Average rainfall in January: 92mm

The wettest month (with the highest rainfall) is May (195mm).
The driest month (with the least rainfall) is September (21mm).

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Average rainfall days in January
Bienvenue, French Guiana

Average rainfall days in January - Bienvenue, French Guiana
  • Average rainfall days in January: 25.4 days

The month with the highest number of rainy days is May (28.9 days).
The month with the least rainy days is October (12 days).

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Average daylight in January /
Average sunshine in January
Bienvenue, French Guiana

Average daylight in January / Average sunshine in January - Bienvenue, French Guiana
  • Average daylight in January: 11h and 58min

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 57min).

  • Average sunshine in January: 5h and 12min

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

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Average sunshine days in January
Bienvenue, French Guiana

Average sunshine days in January - Bienvenue, French Guiana
  • Average sunshine days in January: 4.8 days

The month with the most sunshine days is October (16.3 days).
The month with the least sunshine days is May (1.8 days).

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Average UV index in January
Bienvenue, French Guiana

Average UV index in January - Bienvenue, French Guiana
  • Average UV index in January: 6

The months with the highest UV index are August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, November and December (UV index 6).

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Average cloud cover in January
Bienvenue, French Guiana

Average cloud cover in January - Bienvenue, French Guiana
  • Average cloud cover in January: 72

The month with the most cloud cover is February (Cloud cover 78).
The month with the least cloud cover is October (Cloud cover 46).

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Average visibility in January
Bienvenue, French Guiana

Average visibility in January - Bienvenue, French Guiana
  • Average visibility in January: 6km

The months with the highest visibility are September and October (7km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, November and December (6km).

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