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 dawn of January sees an average high-temperature of a still moderately hot 27.3°C (81.1°F), subtly contrasting with December's 27.6°C (81.7°F). São Luís de Montes Belos's temperature tends to fall to an average low of 19°C (66.2°F) during the nights of January.Heat index
The heat index value for January is estimated at a tropical 31°C (87.8°F). Uninterrupted exposure and activity might result in fatigue, potentially causing heat cramps.Always consider that heat index estimations are for light winds and places in the shade. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Humidity
In São Luís de Montes Belos, Brazil, the average relative humidity in January is 87%.Rainfall
In São Luís de Montes Belos, during January, the rain falls for 29.1 days and regularly aggregates up to 193mm (7.6") of precipitation. Throughout the year, there are 205.3 rainfall days, and 1139mm (44.84") of precipitation is accumulated.Daylight
The average length of the day in January is 12h and 59min.On the first day of the month, sunrise is at 05:52 and sunset at 18:57. On the last day of January, sunrise is at 06:09 and sunset at 18:59 -03.
Sunshine
With an average of 6.7h of sunshine, January has the least sunshine of the year.UV index
In January, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The average daily UV index of 6 in January transforms into the following instructions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. 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. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for São Luís de Montes Belos in January?
What is the average humidity in January in São Luís de Montes Belos?
How many days does it rain in January in São Luís de Montes Belos?
How many hours of daylight does São Luís de Montes Belos have in January?
What time are sunrise and sunset in January in São Luís de Montes Belos?
What is the month with the least sunshine in São Luís de Montes Belos?
How many hours of sunshine does São Luís de Montes Belos have in January?
How high is the UV index in January in São Luís de Montes Belos?
Average temperature in January
São Luís de Montes Belos, Brazil
- Average high temperature in January: 27.3°C
The warmest month (with the highest average high temperature) is September (34.1°C).
The month with the lowest average high temperature is May (27.1°C).
- Average low temperature in January: 19°C
The month with the highest average low temperature is September (21°C).
The coldest months (with the lowest average low temperature) are June and July (16.6°C).
Average pressure in January
São Luís de Montes Belos, Brazil
- Average pressure in January: 1011.8mbar
The month with the highest atmospheric pressure is July (1016.6mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).
Average wind speed in January
São Luís de Montes Belos, Brazil
- Average wind speed in January: 6km/h
The windiest month (with the highest average wind speed) is August (8.9km/h).
The calmest month (with the lowest average wind speed) is March (5.3km/h).
Average humidity in January
São Luís de Montes Belos, Brazil
- Average humidity in January: 87%
The month with the highest relative humidity is March (89%).
The month with the lowest relative humidity is August (39%).
Average rainfall in January
São Luís de Montes Belos, Brazil
- Average rainfall in January: 193mm
The wettest month (with the highest rainfall) is December (199mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in January
São Luís de Montes Belos, Brazil
- Average rainfall days in January: 29.1 days
The month with the highest number of rainy days is December (29.3 days).
The month with the least rainy days is August (0.8 days).
Average daylight in January /
Average sunshine in January
São Luís de Montes Belos, Brazil
- Average daylight in January: 13h and 0min
The month with the longest days is December (Average daylight: 13h and 6min).
The month with the shortest days is June (Average daylight: 11h and 12min).
- Average sunshine in January: 6h and 4min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 42min).
Average sunshine days in January
São Luís de Montes Belos, Brazil
- Average sunshine days in January: 1.2 days
The month with the most sunshine days is July (30.1 days).
The month with the least sunshine days is February (0.9 days).
Average UV index in January
São Luís de Montes Belos, Brazil
- Average UV index in January: 6
The months with the highest UV index are August and September (UV index 7).
The months with the lowest UV index are February and March (UV index 5).
Average cloud cover in January
São Luís de Montes Belos, Brazil
- Average cloud cover in January: 57
The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 11).
Average visibility in January
São Luís de Montes Belos, Brazil
- Average visibility in January: 7km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April and December (7km).
