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 transition into January marks the average high-temperature at a still warm 29.2°C (84.6°F), differing minimally from December's 29°C (84.2°F). An average low-temperature of 23.9°C (75°F) is observed during the January nights.Heat index
In January, the average heat index is evaluated at a hot 34°C (93.2°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.Metrics for the heat index primarily focus on shaded spots and light wind conditions. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', determines the feeling of heat when you account for the relative humidity. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. 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 hold particular importance for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Humidity
In Weerawila, the average relative humidity in January is 76%.Rainfall
In January, the rain falls for 11.3 days. Throughout January, 44mm (1.73") of precipitation is accumulated. In Weerawila, during the entire year, the rain falls for 192.9 days and collects up to 942mm (37.09") of precipitation.Daylight
The average length of the day in January is 11h and 49min.On the first day of January, sunrise is at 06:15 and sunset at 18:01. On the last day of the month, sunrise is at 06:22 and sunset at 18:14 +0530.
Sunshine
The average sunshine in January is 9.2h.UV index
January through September, November and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In January, a regular UV index of 7 translates into these guidelines:
Resist overexposure. Safeguarding from solar damage is indispensable. 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. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in January?
What is the average humidity in January?
How many days does it rain in January?
How many hours of daylight does Weerawila have in January?
What time are sunrise and sunset in January?
How many hours of sunshine does Weerawila have in January?
What are the months with the highest UV index?
How high is the UV index in January?
Average temperature in January
Weerawila, Sri Lanka
- Average high temperature in January: 29.2°C
The warmest month (with the highest average high temperature) is April (31.1°C).
The month with the lowest average high temperature is December (29°C).
- Average low temperature in January: 23.9°C
The month with the highest average low temperature is May (26.7°C).
The coldest month (with the lowest average low temperature) is January (23.9°C).
Average pressure in January
Weerawila, Sri Lanka
- Average pressure in January: 1011.5mbar
The month with the highest atmospheric pressure is January (1011.5mbar).
The month with the lowest atmospheric pressure is May (1008.6mbar).
Average wind speed in January
Weerawila, Sri Lanka
- Average wind speed in January: 16.7km/h
The windiest month (with the highest average wind speed) is June (26.4km/h).
The calmest month (with the lowest average wind speed) is November (11.7km/h).
Average humidity in January
Weerawila, Sri Lanka
- Average humidity in January: 76%
The months with the highest relative humidity are November and December (79%).
The month with the lowest relative humidity is July (74%).
Average rainfall in January
Weerawila, Sri Lanka
- Average rainfall in January: 44mm
The wettest month (with the highest rainfall) is November (182mm).
The driest month (with the least rainfall) is July (16mm).
Average rainfall days in January
Weerawila, Sri Lanka
- Average rainfall days in January: 11.3 days
The month with the highest number of rainy days is November (25.3 days).
The month with the least rainy days is July (10.6 days).
Average daylight in January /
Average sunshine in January
Weerawila, Sri Lanka
- Average daylight in January: 11h and 5min
The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 48min).
- Average sunshine in January: 9h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in January
Weerawila, Sri Lanka
- Average sunshine days in January: 18.3 days
The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is November (3.6 days).
Average UV index in January
Weerawila, Sri Lanka
- Average UV index in January: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, November and December (UV index 7).
The month with the lowest UV index is October (UV index 6).
Average cloud cover in January
Weerawila, Sri Lanka
- Average cloud cover in January: 22
The month with the most cloud cover is November (Cloud cover 40).
The month with the least cloud cover is March (Cloud cover 21).
Average visibility in January
Weerawila, Sri Lanka
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (10km).
The month with the lowest visibility is November (9km).
