January weather forecastBertioga, Brazil
January
Weather in January
January, like December, in Bertioga, Brazil, is another warm summer month, with an average temperature fluctuating between 23.5°C (74.3°F) and 27.5°C (81.5°F).Temperature
On the advent of January, Bertioga's average high-temperature exhibits a minor adjustment to a still moderately hot 27.5°C (81.5°F) from December's 26.6°C (79.9°F). Bertioga sees a minor drop to an average minimum temperature of 23.5°C (74.3°F) during the night in the month of January.Heat index
January's heat index is computed to be a hot 31°C (87.8°F). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.Heat index details are generally centered around shaded locations and a mild breeze. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical 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
The average relative humidity in January is 81%.Rainfall
In Bertioga, during January, the rain falls for 23.3 days and regularly aggregates up to 123mm (4.84") of precipitation. Throughout the year, in Bertioga, there are 191.3 rainfall days, and 819mm (32.24") of precipitation is accumulated.Sea temperature
In Bertioga, the average seawater temperature in January is 26.7°C (80.1°F).Note: 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.
Daylight
In Bertioga, the average length of the day in January is 13h and 25min.On the first day of the month, sunrise is at 05:20 and sunset at 18:54. On the last day of January, in Bertioga, sunrise is at 05:41 and sunset at 18:53 -03.
Sunshine
In January, the average sunshine is 7.7h.UV index
January is the month with the highest UV index in Bertioga, Brazil, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.Note: In January, the maximum UV index of 7 suggests these recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Attention! UV strength is notably upped by the reflection of sand and water.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Bertioga, Brazil
- Average high temperature in January: 27.5°C
The warmest month (with the highest average high temperature) is February (27.8°C).
The month with the lowest average high temperature is July (22°C).
- Average low temperature in January: 23.5°C
The month with the highest average low temperature is February (23.7°C).
The coldest month (with the lowest average low temperature) is August (17.5°C).
Average pressure in January
Bertioga, Brazil
- Average pressure in January: 1012.4mbar
The month with the highest atmospheric pressure is July (1020.1mbar).
The month with the lowest atmospheric pressure is December (1011.7mbar).
Average wind speed in January
Bertioga, Brazil
- Average wind speed in January: 10.2km/h
The windiest month (with the highest average wind speed) is November (11.6km/h).
The calmest month (with the lowest average wind speed) is February (9.8km/h).
Average humidity in January
Bertioga, Brazil
- Average humidity in January: 81%
The month with the highest relative humidity is November (84%).
The month with the lowest relative humidity is August (78%).
Average rainfall in January
Bertioga, Brazil
- Average rainfall in January: 123mm
The wettest month (with the highest rainfall) is February (125mm).
The driest month (with the least rainfall) is August (35mm).
Average rainfall days in January
Bertioga, Brazil
- Average rainfall days in January: 23.3 days
The month with the highest number of rainy days is January (23.3 days).
The month with the least rainy days is August (9.1 days).
Average sea temperature in January
Bertioga, Brazil
- Average sea temperature in January: 26.7°C
The best month for swimming (with the highest average sea temperature) is February (27°C).
The coldest month (with the lowest average sea temperature) is September (20.7°C).
Average daylight in January /
Average sunshine in January
Bertioga, Brazil
- Average daylight in January: 13h and 24min
The month with the longest days is December (Average daylight: 13h and 36min).
The month with the shortest days is June (Average daylight: 10h and 42min).
- Average sunshine in January: 7h and 42min
The month with the most sunshine is May (Average sunshine: 8h and 6min).
The month with the least sunshine is November (Average sunshine: 7h and 0min).
Average sunshine days in January
Bertioga, Brazil
- Average sunshine days in January: 4.5 days
The month with the most sunshine days is August (19.5 days).
The month with the least sunshine days is February (3.5 days).
Average UV index in January
Bertioga, Brazil
- Average UV index in January: 7
The month with the highest UV index is January (UV index 7).
The months with the lowest UV index are May, July, August and September (UV index 5).
Average cloud cover in January
Bertioga, Brazil
- Average cloud cover in January: 43
The month with the most cloud cover is November (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in January
Bertioga, Brazil
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September and December (10km).
The months with the lowest visibility are October and November (9km).
