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's presence records an average high-temperature of a still warm 29.2°C (84.6°F), closely mirroring December's climate. January nights in Udawalawa are marked by an average low-temperature of 23.9°C (75°F).Heat index
January's mean heat index is computed to be a hot 34°C (93.2°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.Research indicates the heat index considers values in shaded locales and with light winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Humidity
The average relative humidity in January is 76%.Rainfall
In Udawalawa, in January, during 11.3 rainfall days, 44mm (1.73") of precipitation is typically accumulated. In Udawalawa, during the entire year, the rain falls for 192.9 days and collects up to 942mm (37.09") of precipitation.Daylight
In Udawalawa, the average length of the day in January is 11h and 48min.On the first day of January in Udawalawa, sunrise is at 06:17 and sunset at 18:02. On the last day of the month, sunrise is at 06:24 and sunset at 18:15 +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 reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 7 in January interprets into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Udawalawa in January?
What is the average humidity in January in Udawalawa?
How much does it rain in Udawalawa in January?
What is the average length of the day in January in Udawalawa?
What time are sunrise and sunset in January in Udawalawa?
How long on average sun shines in January in Udawalawa?
When is the highest UV index in Udawalawa?
What is the UV index reading in January in Udawalawa?
Average temperature in January
Udawalawa, 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
Udawalawa, 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
Udawalawa, 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
Udawalawa, 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
Udawalawa, 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
Udawalawa, 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
Udawalawa, 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
Udawalawa, 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
Udawalawa, 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
Udawalawa, 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
Udawalawa, 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).
