Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
January
Weather in January
Temperature
The arrival of January brings an average high-temperature of a warm 29.8°C (85.6°F), nearly identical to December's 30.8°C (87.4°F). January nights experience a consistent temperature drop to an agreeable 20.6°C (69.1°F).Heat index
January's heat index is estimated at a fiery hot 39°C (102.2°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.Know that the heat index computations account for shaded terrains and slight winds. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
The average relative humidity in January is 86%.Rainfall
In L'Observatoire, during January, the rain falls for 28 days and regularly aggregates up to 86mm (3.39") of precipitation. Throughout the year, in L'Observatoire, there are 259.3 rainfall days, and 898mm (35.35") of precipitation is accumulated.Daylight
The average length of the day in January in L'Observatoire is 11h and 53min.On the first day of the month, sunrise is at 06:43 and sunset at 18:35. On the last day of January, sunrise is at 06:51 and sunset at 18:47 -03.
Sunshine
The average sunshine in January in L'Observatoire is 5.3h.UV index
The average daily maximum UV index in January is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In January, a regular UV index of 6 translates into these guidelines:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in L'Observatoire during January?
What is the average humidity in January in L'Observatoire?
How much does it rain in L'Observatoire in January?
How many hours of daylight does L'Observatoire have in January?
When are sunrise and sunset in January in L'Observatoire?
How long on average sun shines in January in L'Observatoire?
How high is the UV index in January in L'Observatoire?
Average temperature in January
L'Observatoire, French Guiana
- Average high temperature in January: 29.8°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 (29.5°C).
- Average low temperature in January: 20.6°C
The month with the highest average low temperature is May (22.1°C).
The coldest month (with the lowest average low temperature) is January (20.6°C).
Average pressure in January
L'Observatoire, French Guiana
- Average pressure in January: 1011.9mbar
The months with the highest atmospheric pressure are June and July (1012.9mbar).
The month with the lowest atmospheric pressure is November (1009.3mbar).
Average wind speed in January
L'Observatoire, French Guiana
- Average wind speed in January: 5.3km/h
The windiest months (with the highest average wind speed) are March and November (5.5km/h).
The calmest month (with the lowest average wind speed) is July (4.4km/h).
Average humidity in January
L'Observatoire, French Guiana
- Average humidity in January: 86%
The month with the highest relative humidity is May (90%).
The month with the lowest relative humidity is October (73%).
Average rainfall in January
L'Observatoire, French Guiana
- Average rainfall in January: 86mm
The wettest month (with the highest rainfall) is May (169mm).
The driest month (with the least rainfall) is October (21mm).
Average rainfall days in January
L'Observatoire, French Guiana
- Average rainfall days in January: 28 days
The months with the highest number of rainy days are January and December (28 days).
The month with the least rainy days is September (10.3 days).
Average daylight in January /
Average sunshine in January
L'Observatoire, 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 54min).
- Average sunshine in January: 5h and 2min
The month with the most sunshine is September (Average sunshine: 9h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in January
L'Observatoire, French Guiana
- Average sunshine days in January: 1.9 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is February (1.4 days).
Average UV index in January
L'Observatoire, 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 month with the lowest UV index is December (UV index 5).
Average cloud cover in January
L'Observatoire, French Guiana
- Average cloud cover in January: 74
The month with the most cloud cover is February (Cloud cover 78).
The month with the least cloud cover is October (Cloud cover 46).
Average visibility in January
L'Observatoire, French Guiana
- Average visibility in January: 6km
The months with the highest visibility are August, September, October and November (7km).
The months with the lowest visibility are January, February, March, April, May, June, July and December (6km).
