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
January registers an average high-temperature of a still warm 29.3°C (84.7°F), slightly varied from December's 28.7°C (83.7°F). The average low-temperature, in January, is a refreshing 19.4°C (66.9°F).Heat index
For most parts of January, the heat index is appraised at a very hot 37°C (98.6°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', shows a temperature sensation when both heat and moisture conditions are combined. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
In January, the average relative humidity is 84%.Rainfall
The month with the most rainfall is January, when the rain falls for 23.8 days and typically aggregates up to 164mm (6.46") of precipitation.Daylight
In January, the average length of the day is 13h and 20min.On the first day of the month, sunrise is at 05:15 and sunset at 18:44. On the last day of January, in Barra Mansa, sunrise is at 05:36 and sunset at 18:43 -03.
Sunshine
The average sunshine in January is 8.1h.UV index
The months with the highest UV index in Barra Mansa are January through March, August, October and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 6 in January converts into the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Barra Mansa in January?
What is the average humidity in January in Barra Mansa?
What is the wettest month in Barra Mansa?
How many days does it rain in January in Barra Mansa?
What is the average length of the day in January in Barra Mansa?
When is the sunrise / sunset in January in Barra Mansa?
How many hours of sunshine does Barra Mansa have in January?
What are the months with the highest UV index in Barra Mansa?
What is the UV index intensity in January in Barra Mansa?
Average temperature in January
Barra Mansa, Brazil
- Average high temperature in January: 29.3°C
The warmest month (with the highest average high temperature) is February (29.4°C).
The month with the lowest average high temperature is June (23.6°C).
- Average low temperature in January: 19.4°C
The month with the highest average low temperature is January (19.4°C).
The coldest months (with the lowest average low temperature) are July and August (13.5°C).
Average pressure in January
Barra Mansa, Brazil
- Average pressure in January: 1013.3mbar
The month with the highest atmospheric pressure is July (1020.6mbar).
The month with the lowest atmospheric pressure is December (1012.4mbar).
Average wind speed in January
Barra Mansa, Brazil
- Average wind speed in January: 5.4km/h
The windiest month (with the highest average wind speed) is September (6.4km/h).
The calmest months (with the lowest average wind speed) are March and April (4.9km/h).
Average humidity in January
Barra Mansa, Brazil
- Average humidity in January: 84%
The months with the highest relative humidity are March and April (87%).
The month with the lowest relative humidity is September (76%).
Average rainfall in January
Barra Mansa, Brazil
- Average rainfall in January: 164mm
The wettest month (with the highest rainfall) is January (164mm).
The driest month (with the least rainfall) is June (20mm).
Average rainfall days in January
Barra Mansa, Brazil
- Average rainfall days in January: 23.8 days
The month with the highest number of rainy days is December (26.4 days).
The month with the least rainy days is August (9.1 days).
Average daylight in January /
Average sunshine in January
Barra Mansa, Brazil
- Average daylight in January: 13h and 2min
The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 48min).
- Average sunshine in January: 8h and 1min
The month with the most sunshine is February (Average sunshine: 8h and 30min).
The month with the least sunshine is November (Average sunshine: 7h and 12min).
Average sunshine days in January
Barra Mansa, Brazil
- Average sunshine days in January: 4.4 days
The months with the most sunshine days are July and August (17.3 days).
The month with the least sunshine days is November (2.6 days).
Average UV index in January
Barra Mansa, Brazil
- Average UV index in January: 6
The months with the highest UV index are January, February, March, August, October and December (UV index 6).
The months with the lowest UV index are April, May, June, July, September and November (UV index 5).
Average cloud cover in January
Barra Mansa, Brazil
- Average cloud cover in January: 44
The month with the most cloud cover is November (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in January
Barra Mansa, Brazil
- Average visibility in January: 7km
The months with the highest visibility are February, July, August, September and October (8km).
The month with the lowest visibility is April (6km).
