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
Thornleigh's January weather reaches an average high of 29.2°C (84.6°F) and an average low of 18.8°C (65.8°F), making it the warmest month.Heat index
January's average heat index is calculated to be a hot 33°C (91.4°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.Heat index evaluations are typically in the context of light winds and shaded environments. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Humidity
In Thornleigh, the average relative humidity in January is 71%.Rainfall
In Thornleigh, in January, during 15.9 rainfall days, 59mm (2.32") of precipitation is typically accumulated. In Thornleigh, Australia, during the entire year, the rain falls for 149.1 days and collects up to 546mm (21.5") of precipitation.Daylight
In Thornleigh, the average length of the day in January is 14h and 6min.On the first day of January in Thornleigh, sunrise is at 5:48 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 8:02 pm AEDT.
Sunshine
In Thornleigh, the average sunshine in January is 8.2h.UV index
The months with the highest UV index are January, February, November and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In January, an average UV index of 6 transforms into the following instructions:
Deflect overexposure. Sun protection is a necessity. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the warmest month in Thornleigh?
How hot is it in Thornleigh in January?
What is the average humidity in January in Thornleigh?
How much does it rain in Thornleigh in January?
What is the average length of the day in January in Thornleigh?
When is the sunrise / sunset in January in Thornleigh?
How long on average sun shines in January in Thornleigh?
What are the months with the highest UV index in Thornleigh?
What is the UV index intensity in January in Thornleigh?
Average temperature in January
Thornleigh, Australia
- Average high temperature in January: 29.2°C
The warmest month (with the highest average high temperature) is January (29.2°C).
The month with the lowest average high temperature is June (16.8°C).
- Average low temperature in January: 18.8°C
The month with the highest average low temperature is January (18.8°C).
The coldest month (with the lowest average low temperature) is July (8.1°C).
Average pressure in January
Thornleigh, Australia
- Average pressure in January: 1012.9mbar
The month with the highest atmospheric pressure is June (1021mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).
Average wind speed in January
Thornleigh, Australia
- Average wind speed in January: 10.1km/h
The windiest month (with the highest average wind speed) is December (10.2km/h).
The calmest month (with the lowest average wind speed) is April (8.8km/h).
Average humidity in January
Thornleigh, Australia
- Average humidity in January: 71%
The month with the highest relative humidity is June (76%).
The month with the lowest relative humidity is September (65%).
Average rainfall in January
Thornleigh, Australia
- Average rainfall in January: 59mm
The wettest month (with the highest rainfall) is February (87mm).
The driest month (with the least rainfall) is May (27mm).
Average rainfall days in January
Thornleigh, Australia
- Average rainfall days in January: 15.9 days
The month with the highest number of rainy days is March (17.6 days).
The month with the least rainy days is August (7.9 days).
Average daylight in January /
Average sunshine in January
Thornleigh, Australia
- Average daylight in January: 14h and 1min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 10h and 0min).
- Average sunshine in January: 8h and 1min
The months with the most sunshine are November and December (Average sunshine: 9h and 24min).
The month with the least sunshine is June (Average sunshine: 5h and 48min).
Average sunshine days in January
Thornleigh, Australia
- Average sunshine days in January: 11.6 days
The month with the most sunshine days is August (21 days).
The month with the least sunshine days is February (10.4 days).
Average UV index in January
Thornleigh, Australia
- Average UV index in January: 6
The months with the highest UV index are January, February, November and December (UV index 6).
The months with the lowest UV index are May, June, July, August and September (UV index 4).
Average cloud cover in January
Thornleigh, Australia
- Average cloud cover in January: 43
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in January
Thornleigh, Australia
- Average visibility in January: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
