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 proves to be the coldest month, recording an average maximum temperature of 27°C (80.6°F) and a minimum temperature of 18.9°C (66°F).Heat index
The heat index for January is appraised at a tropical 30°C (86°F). If exposure and activity persist, fatigue could ensue, possibly leading to heat cramps.The metrics for the heat index are tailored for both shady environments and light winds. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', represents the fusion of temperature and moisture in the air to suggest how warm it feels. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Humidity
In Rianápolis, the average relative humidity in January is 86%.Rainfall
In January, the rain falls for 29.3 days. Throughout January, 229mm (9.02") of precipitation is accumulated. In Rianápolis, during the entire year, the rain falls for 219.6 days and collects up to 1537mm (60.51") of precipitation.Daylight
In Rianápolis, the average length of the day in January is 12h and 55min.On the first day of January, sunrise is at 05:50 and sunset at 18:52. On the last day of the month, sunrise is at 06:07 and sunset at 18:54 -03.
Sunshine
The average sunshine in January in Rianápolis is 7h.UV index
The average daily maximum UV index in January in Rianápolis is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In January, an average UV index of 6 transforms into the following instructions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Rianápolis?
What is the usual temperature for Rianápolis in January?
What is the average humidity in January in Rianápolis?
How many days does it rain in January in Rianápolis?
How many hours of daylight does Rianápolis have in January?
When is the sunrise / sunset in January in Rianápolis?
How many hours of sunshine does Rianápolis have in January?
How high is the UV index in January in Rianápolis?
Average temperature in January
Rianápolis, Brazil
- Average high temperature in January: 27°C
The warmest month (with the highest average high temperature) is September (33.5°C).
The month with the lowest average high temperature is January (27°C).
- Average low temperature in January: 18.9°C
The month with the highest average low temperature is October (21°C).
The coldest month (with the lowest average low temperature) is July (16.1°C).
Average pressure in January
Rianápolis, Brazil
- Average pressure in January: 1012.2mbar
The month with the highest atmospheric pressure is July (1017mbar).
The month with the lowest atmospheric pressure is November (1011mbar).
Average wind speed in January
Rianápolis, Brazil
- Average wind speed in January: 5.6km/h
The windiest month (with the highest average wind speed) is August (8.3km/h).
The calmest month (with the lowest average wind speed) is March (5.2km/h).
Average humidity in January
Rianápolis, Brazil
- Average humidity in January: 86%
The month with the highest relative humidity is March (88%).
The month with the lowest relative humidity is September (40%).
Average rainfall in January
Rianápolis, Brazil
- Average rainfall in January: 229mm
The wettest month (with the highest rainfall) is November (266mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in January
Rianápolis, Brazil
- Average rainfall days in January: 29.3 days
The months with the highest number of rainy days are January and December (29.3 days).
The month with the least rainy days is August (1.3 days).
Average daylight in January /
Average sunshine in January
Rianápolis, Brazil
- Average daylight in January: 12h and 5min
The month with the longest days is December (Average daylight: 13h and 0min).
The month with the shortest days is June (Average daylight: 11h and 12min).
- Average sunshine in January: 7h and 0min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in January
Rianápolis, Brazil
- Average sunshine days in January: 1.1 days
The month with the most sunshine days is August (29 days).
The months with the least sunshine days are February and November (0.7 days).
Average UV index in January
Rianápolis, 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 December (UV index 5).
Average cloud cover in January
Rianápolis, Brazil
- Average cloud cover in January: 55
The month with the most cloud cover is December (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in January
Rianápolis, 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 and March (7km).
