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 tends to be the coldest month, with temperatures averaging a daily high of 27.3°C (81.1°F) and a low of 24°C (75.2°F).Heat index
Throughout January, the heat index is calculated to be a hot 30°C (86°F). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Humidity
The average relative humidity in January in Vellaveli is 80%.Rainfall
In Vellaveli, during January, the rain falls for 18.7 days and regularly aggregates up to 120mm (4.72") of precipitation. In Vellaveli, during the entire year, the rain falls for 237.8 days and collects up to 1259mm (49.57") of precipitation.Daylight
The average length of the day in January in Vellaveli is 11h and 44min.On the first day of the month, sunrise is at 06:15 and sunset at 17:57. On the last day of January, sunrise is at 06:22 and sunset at 18:10 +0530.
Sunshine
In January, the average sunshine in Vellaveli is 7.5h.UV index
The months with the highest UV index are January through October, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.Note: A maximum UV index of 7 in January translates into the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Vellaveli?
What are January temperatures in Vellaveli?
What is the average humidity in January in Vellaveli?
How many days does it rain in January in Vellaveli?
How many hours of daylight does Vellaveli have in January?
What time are sunrise and sunset in January in Vellaveli?
How many hours of sunshine does Vellaveli have in January?
When is the highest UV index in Vellaveli?
What is the UV index intensity in January in Vellaveli?
Average temperature in January
Vellaveli, Sri Lanka
- Average high temperature in January: 27.3°C
The warmest month (with the highest average high temperature) is June (33°C).
The month with the lowest average high temperature is January (27.3°C).
- Average low temperature in January: 24°C
The month with the highest average low temperature is May (26.6°C).
The coldest month (with the lowest average low temperature) is January (24°C).
Average pressure in January
Vellaveli, Sri Lanka
- Average pressure in January: 1011.8mbar
The month with the highest atmospheric pressure is January (1011.8mbar).
The month with the lowest atmospheric pressure is June (1007.3mbar).
Average wind speed in January
Vellaveli, Sri Lanka
- Average wind speed in January: 13.9km/h
The windiest month (with the highest average wind speed) is January (13.9km/h).
The calmest month (with the lowest average wind speed) is September (9.1km/h).
Average humidity in January
Vellaveli, Sri Lanka
- Average humidity in January: 80%
The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are June and July (68%).
Average rainfall in January
Vellaveli, Sri Lanka
- Average rainfall in January: 120mm
The wettest month (with the highest rainfall) is December (272mm).
The driest month (with the least rainfall) is June (30mm).
Average rainfall days in January
Vellaveli, Sri Lanka
- Average rainfall days in January: 18.7 days
The months with the highest number of rainy days are October and November (25.5 days).
The month with the least rainy days is March (12.8 days).
Average daylight in January /
Average sunshine in January
Vellaveli, Sri Lanka
- Average daylight in January: 11h and 4min
The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in January: 7h and 3min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in January
Vellaveli, Sri Lanka
- Average sunshine days in January: 8.3 days
The month with the most sunshine days is March (15.5 days).
The month with the least sunshine days is November (3.2 days).
Average UV index in January
Vellaveli, 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 and October (UV index 7).
The months with the lowest UV index are November and December (UV index 6).
Average cloud cover in January
Vellaveli, Sri Lanka
- Average cloud cover in January: 47
The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is April (Cloud cover 22).
Average visibility in January
Vellaveli, Sri Lanka
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are November and December (9km).
