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 observes an average high-temperature of a still warm 29.2°C (84.6°F), marking an insignificant difference from December's 28.9°C (84°F). January brings with it a nighttime average temperature of 24°C (75.2°F).Heat index
The average heat index in January is calculated to be a sweltering 35°C (95°F). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.Heat index determinations are made taking into account the shade and light air movements. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. 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 largely significant for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
The average relative humidity in January is 78%.Rainfall
The month with the least rainfall is January, when the rain falls for 14.8 days and typically collects 38mm (1.5") of precipitation.Daylight
In Kalegana, the average length of the day in January is 11h and 49min.On the first day of January, sunrise is at 06:19 and sunset at 18:05. On the last day of the month, sunrise is at 06:26 and sunset at 18:18 +0530.
Sunshine
In Kalegana, the average sunshine in January is 9h.UV index
The months with the highest UV index are January through April, June through August, October through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 7 in January interprets into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during January?
What is the average humidity in January?
What is the driest month?
How much does it rain in January?
What is the average length of the day in January?
When are sunrise and sunset in January?
How many hours of sunshine does Kalegana have in January?
What is the month with the highest UV index?
How high is the UV index in January?
Average temperature in January
Kalegana, Sri Lanka
- Average high temperature in January: 29.2°C
The warmest months (with the highest average high temperature) are March and April (30.3°C).
The months with the lowest average high temperature are August and September (28.3°C).
- Average low temperature in January: 24°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 (24°C).
Average pressure in January
Kalegana, Sri Lanka
- Average pressure in January: 1011.4mbar
The month with the highest atmospheric pressure is January (1011.4mbar).
The month with the lowest atmospheric pressure is May (1008.9mbar).
Average wind speed in January
Kalegana, Sri Lanka
- Average wind speed in January: 7.8km/h
The windiest month (with the highest average wind speed) is June (20.2km/h).
The calmest month (with the lowest average wind speed) is January (7.8km/h).
Average humidity in January
Kalegana, Sri Lanka
- Average humidity in January: 78%
The months with the highest relative humidity are June and September (82%).
The months with the lowest relative humidity are February and March (77%).
Average rainfall in January
Kalegana, Sri Lanka
- Average rainfall in January: 38mm
The wettest month (with the highest rainfall) is May (302mm).
The driest month (with the least rainfall) is January (38mm).
Average rainfall days in January
Kalegana, Sri Lanka
- Average rainfall days in January: 14.8 days
The month with the highest number of rainy days is June (28 days).
The month with the least rainy days is January (14.8 days).
Average daylight in January /
Average sunshine in January
Kalegana, 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 0min
The month with the most sunshine is April (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in January
Kalegana, Sri Lanka
- Average sunshine days in January: 12.8 days
The month with the most sunshine days is January (12.8 days).
The month with the least sunshine days is June (1 days).
Average UV index in January
Kalegana, Sri Lanka
- Average UV index in January: 7
The months with the highest UV index are January, February, March, April, June, July, August, October, November and December (UV index 7).
The months with the lowest UV index are May and September (UV index 6).
Average cloud cover in January
Kalegana, Sri Lanka
- Average cloud cover in January: 27
The month with the most cloud cover is June (Cloud cover 51).
The month with the least cloud cover is February (Cloud cover 26).
Average visibility in January
Kalegana, Sri Lanka
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, June and December (10km).
The months with the lowest visibility are May, July, August, September, October and November (9km).
