January weather forecast
Mana, French Guiana

englishespañol中文
Share

Weather in January

Compared to the rest of the year, January in Mana, French Guiana showcases a stable weather pattern. Despite the continuous hovering of the thermometer in the 29.4°C (84.9°F) range, a relative humidity of 82% signifies a humid start of the year. A quick transition to February could result in notable differences in weather patterns. The overall daytime weather could be characterized by overcast skies, with cloud cover comprising 54% of the total sky. Coastal promenades can be less enjoyable due to a steady breeze, blowing at 9.1km/h (5.7mph).

Temperature

January's advent presents an average high-temperature of a moderately hot 29.4°C (84.9°F), indicating a slight variation from the conditions of the previous month. January's nights observe an average temperature of 22.4°C (72.3°F).

Heat index

The heat index value for January is evaluated at a very hot 36°C (96.8°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

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

Rainfall

In Mana, in January, it is raining for 23.6 days, with typically 54mm (2.13") of accumulated precipitation. Throughout the year, in Mana, there are 253 rainfall days, and 878mm (34.57") of precipitation is accumulated.

Sea temperature

In Mana, in January, the average water temperature is 27.1°C (80.8°F).
Note: For any water activity, the surface water temperatures in the range of 25°C (77°F) to 29°C (84.2°F) are deemed excellent and incredibly pleasant for longer durations.

Daylight

The average length of the day in January in Mana is 11h and 50min.
On the first day of January in Mana, sunrise is at 06:44 and sunset at 18:32. On the last day of the month, sunrise is at 06:52 and sunset at 18:44 -03.

Sunshine

The average sunshine in January is 6.3h.

UV index

The months with the lowest UV index in Mana are January through June and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 6 in January transforms into the following instructions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be alert! The reflection of water and sand augments UV radiation intensity.

Frequently asked questions

How hot is January in Mana?

In Mana, in January, the average high-temperature is 29.4°C (84.9°F), and the average low-temperature is 22.4°C (72.3°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in January is evaluated at 36°C (96.8°F).

What is the average humidity in January in Mana?

The average relative humidity in January is 82%.

How many days does it rain in January in Mana?

In Mana, French Guiana, during January, the rain falls for 23.6 days and regularly aggregates up to 54mm (2.13") of precipitation.

What is the water temperature in January in Mana?

In Mana, French Guiana, the average seawater temperature in January is 27.1°C (80.8°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

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

The average day length in January in Mana, French Guiana, is 11h and 50min.

When is the sunrise / sunset in January in Mana?

In January, on the first day of the month, sunrise is at 06:44 and sunset at 18:32. On the last day of the month, in Mana, French Guiana, sunrise is at 06:52 and sunset at 18:44 -03.

How many hours of sunshine does Mana have in January?

The average sunshine duration in January in Mana is 6.3h.

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

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 in Mana?

In January, the average daily maximum UV index in Mana is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.

Average temperature in January
Mana, French Guiana

Average temperature in January - Mana, 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
Mana, French Guiana

Average pressure in January - Mana, 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
Mana, French Guiana

Average wind speed in January - Mana, 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
Mana, French Guiana

Average humidity in January - Mana, 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
Mana, French Guiana

Average rainfall in January - Mana, 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
Mana, French Guiana

Average rainfall days in January - Mana, 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 sea temperature in January
Mana, French Guiana

Average sea temperature in January - Mana, French Guiana
  • Average sea temperature in January: 27.1°C

The best months for swimming (with the highest average sea temperature) are July and August (28.4°C).
The coldest month (with the lowest average sea temperature) is February (27°C).

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

Average daylight in January / Average sunshine in January - Mana, 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
Mana, French Guiana

Average sunshine days in January - Mana, 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
Mana, French Guiana

Average UV index in January - Mana, 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
Mana, French Guiana

Average cloud cover in January - Mana, 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
Mana, French Guiana

Average visibility in January - Mana, 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).

Mana, French Guiana

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location