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
Weather in January
Temperature
Walahanduwa's January average high-temperature settles at a still warm 29.2°C (84.6°F), showing a near match with the preceding month. Nighttime temperatures consistently average a still moderately hot 24°C (75.2°F) during January.Heat index
During January, the heat index is evaluated at a very hot 35°C (95°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.It is emphasized that the heat index's values are meant for shaded zones with mild winds. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.
Humidity
In January, the average relative humidity in Walahanduwa is 78%.Rainfall
The month with the least rainfall in Walahanduwa, Sri Lanka, is January, when the rain falls for 14.8 days and typically collects 38mm (1.5") of precipitation.Daylight
In January, the average length of the day is 11h and 49min.On the first day of the month, sunrise is at 06:18 and sunset at 18:05. On the last day of January, sunrise is at 06:26 and sunset at 18:18 +0530.
Sunshine
The average sunshine in January is 9h.UV index
January through April, June through August, October through December, with an average maximum UV index of 7, are months with the highest UV index in Walahanduwa. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.Note: In January, the maximum UV index of 7 translates into these guidelines:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Frequently asked questions
Is it hot in Walahanduwa during January?
What is the average humidity in January in Walahanduwa?
What is the driest month in Walahanduwa?
How many days does it rain in January in Walahanduwa?
What is the average length of the day in January in Walahanduwa?
When is the sunrise / sunset in January in Walahanduwa?
How long on average sun shines in January in Walahanduwa?
What are the months with the highest UV index in Walahanduwa?
What is the UV index reading in January in Walahanduwa?
Average temperature in January
Walahanduwa, 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
Walahanduwa, 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
Walahanduwa, 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
Walahanduwa, 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
Walahanduwa, 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
Walahanduwa, 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
Walahanduwa, 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
Walahanduwa, 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
Walahanduwa, 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
Walahanduwa, 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
Walahanduwa, 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).
Walahanduwa, Sri Lanka
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