January weather forecast
Apatou, French Guiana

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Weather in January

Kicking off the year in Apatou, French Guiana, the climate stays somewhat constant, resembling its neighboring month of February. The weather, observable in little variations in temperature, is characterized by moderate rain totaling 54mm (2.13") across 23.6 days. A rather humid environment prevails, with clouds mostly dominating the skies, reducing the chances of having many sunny days. Breezy conditions, albeit significant, do not usually create disruptive weather patterns. Visitors can enjoy the city's immense biodiversity or engage in outdoor activities, considering the predictably warm and humid weather.

Temperature

Apatou's shift into January sets the average high-temperature at a warm 29.4°C (84.9°F), a figure that deviates only slightly from December's 30.2°C (86.4°F). During January, Apatou's temperature averages to an agreeable 22.4°C (72.3°F) at night.

Heat index

For most parts of January, the heat index is evaluated at a fiery hot 36°C (96.8°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In Apatou, French Guiana, the average relative humidity in January is 82%.

Rainfall

In Apatou, in January, it is raining for 23.6 days, with typically 54mm (2.13") of accumulated precipitation. In Apatou, during the entire year, the rain falls for 253 days and collects up to 878mm (34.57") of precipitation.

Daylight

The average length of the day in January is 11h and 52min.
On the first day of the month, sunrise is at 06:45 and sunset at 18:35. On the last day of January, sunrise is at 06:53 and sunset at 18:47 -03.

Sunshine

The average sunshine in January is 6.3h.

UV index

The months with the lowest UV index are January through June and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: In January, a daily UV index of 6 turns into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.

Frequently asked questions

How hot is it in January?

The average high-temperature and low-temperature during January are 29.4°C (84.9°F) and 22.4°C (72.3°F) respectively. In January, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 36°C (96.8°F).

What is the average humidity in January in Apatou?

In Apatou, French Guiana, the average relative humidity in January is 82%.

How many days does it rain in January?

In Apatou, in January, during 23.6 rainfall days, 54mm (2.13") of precipitation is typically accumulated.

How many hours of daylight does Apatou have in January?

In January, the average day length is 11h and 52min.

When is the sunrise / sunset in January?

On the first day of January in Apatou, sunrise is at 06:45 and sunset at 18:35. On the last day of the month, sunrise is at 06:53 and sunset at 18:47 -03.

How long on average sun shines in January?

In January, the average sunshine duration is 6.3h.

When is the lowest UV index?

The months with the lowest UV index are January through June and December, with an average maximum UV index of 6.

What is the UV index reading in January?

The average daily maximum UV index in January is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.

Average temperature in January
Apatou, French Guiana

Average temperature in January - Apatou, French Guiana
  • Average high temperature in January: 29.4°C

The warmest month (with the highest average high temperature) is October (33.1°C).
The month with the lowest average high temperature is February (29.1°C).

  • Average low temperature in January: 22.4°C

The month with the highest average low temperature is May (23.3°C).
The coldest month (with the lowest average low temperature) is July (22.2°C).

Average pressure in January
Apatou, French Guiana

Average pressure in January - Apatou, French Guiana
  • Average pressure in January: 1012mbar

The months with the highest atmospheric pressure are June and July (1012.9mbar).
The month with the lowest atmospheric pressure is November (1009.5mbar).

Average wind speed in January
Apatou, French Guiana

Average wind speed in January - Apatou, French Guiana
  • Average wind speed in January: 9.1km/h

The windiest months (with the highest average wind speed) are February and March (9.5km/h).
The calmest month (with the lowest average wind speed) is July (6.4km/h).

Average humidity in January
Apatou, French Guiana

Average humidity in January - Apatou, French Guiana
  • Average humidity in January: 82%

The month with the highest relative humidity is June (88%).
The month with the lowest relative humidity is October (77%).

Average rainfall in January
Apatou, French Guiana

Average rainfall in January - Apatou, French Guiana
  • Average rainfall in January: 54mm

The wettest month (with the highest rainfall) is May (137mm).
The driest month (with the least rainfall) is October (23mm).

Average rainfall days in January
Apatou, French Guiana

Average rainfall days in January - Apatou, French Guiana
  • Average rainfall days in January: 23.6 days

The month with the highest number of rainy days is May (28 days).
The month with the least rainy days is September (11.5 days).

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

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

The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 48min).

  • Average sunshine in January: 6h and 2min

The month with the most sunshine is September (Average sunshine: 9h and 6min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

Average sunshine days in January
Apatou, French Guiana

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

The month with the most sunshine days is October (16 days).
The month with the least sunshine days is May (1.8 days).

Average UV index in January
Apatou, French Guiana

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

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

Average cloud cover in January
Apatou, French Guiana

Average cloud cover in January - Apatou, French Guiana
  • Average cloud cover in January: 54

The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 34).

Average visibility in January
Apatou, French Guiana

Average visibility in January - Apatou, French Guiana
  • Average visibility in January: 8km

The months with the highest visibility are February, March and April (9km).
The months with the lowest visibility are June, July and August (7km).

Apatou, French Guiana

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