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
Porteirinha experiences an average high-temperature of a still warm 28.8°C (83.8°F) with the onset of January, subtly varied from December's 28.5°C (83.3°F). Nighttime temperatures in January average to a refreshing 18.3°C (64.9°F) in Porteirinha.Heat index
The heat index in January is appraised at a tropical 34°C (93.2°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.Heat index evaluations are typically in the context of light winds and shaded environments. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of 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 quite important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
The average relative humidity in January is 77%.Rainfall
In Porteirinha, during January, the rain falls for 20.4 days and regularly aggregates up to 114mm (4.49") of precipitation. In Porteirinha, during the entire year, the rain falls for 151.8 days and collects up to 685mm (26.97") of precipitation.Daylight
In Porteirinha, the average length of the day in January is 12h and 56min.On the first day of January, sunrise is at 05:24 and sunset at 18:26. On the last day of the month, sunrise is at 05:41 and sunset at 18:29 -03.
Sunshine
In January, the average sunshine is 8.6h.UV index
In Porteirinha, the average daily maximum UV index in January is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The UV index of 6 in January translates into these instructions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Porteirinha in January?
What is the average humidity in January in Porteirinha?
How many days does it rain in January in Porteirinha?
How many hours of daylight does Porteirinha have in January?
When is the sunrise / sunset in January in Porteirinha?
How long on average sun shines in January in Porteirinha?
How high is the UV index in January in Porteirinha?
Average temperature in January
Porteirinha, Brazil
- Average high temperature in January: 28.8°C
The warmest month (with the highest average high temperature) is October (31.1°C).
The month with the lowest average high temperature is June (26.2°C).
- Average low temperature in January: 18.3°C
The month with the highest average low temperature is November (19.2°C).
The coldest month (with the lowest average low temperature) is July (14.9°C).
Average pressure in January
Porteirinha, Brazil
- Average pressure in January: 1013.6mbar
The month with the highest atmospheric pressure is July (1019.5mbar).
The month with the lowest atmospheric pressure is November (1012.6mbar).
Average wind speed in January
Porteirinha, Brazil
- Average wind speed in January: 8km/h
The windiest month (with the highest average wind speed) is August (11.8km/h).
The calmest month (with the lowest average wind speed) is March (7.4km/h).
Average humidity in January
Porteirinha, Brazil
- Average humidity in January: 77%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is September (54%).
Average rainfall in January
Porteirinha, Brazil
- Average rainfall in January: 114mm
The wettest month (with the highest rainfall) is November (125mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in January
Porteirinha, Brazil
- Average rainfall days in January: 20.4 days
The month with the highest number of rainy days is December (23 days).
The month with the least rainy days is August (1.5 days).
Average daylight in January /
Average sunshine in January
Porteirinha, 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: 8h and 4min
The month with the most sunshine is September (Average sunshine: 9h and 48min).
The month with the least sunshine is November (Average sunshine: 8h and 6min).
Average sunshine days in January
Porteirinha, Brazil
- Average sunshine days in January: 8.9 days
The month with the most sunshine days is July (28.3 days).
The month with the least sunshine days is November (6.7 days).
Average UV index in January
Porteirinha, Brazil
- Average UV index in January: 6
The month with the highest UV index is September (UV index 7).
The months with the lowest UV index are June and July (UV index 5).
Average cloud cover in January
Porteirinha, Brazil
- Average cloud cover in January: 41
The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is September (Cloud cover 16).
Average visibility in January
Porteirinha, Brazil
- Average visibility in January: 8km
The months with the highest visibility are July, August, September and October (10km).
The months with the lowest visibility are January, March, April and December (8km).
