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
Keselwatta measures an average high-temperature of a tropical 30.3°C (86.5°F) in January, nearly consistent with the preceding month. Keselwatta observes an average low-temperature of 23.4°C (74.1°F) during January nights.Heat index
For most parts of January, the heat index is appraised at a fiery hot 37°C (98.6°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.Heat index details are generally centered around shaded locations and a mild breeze. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.
Humidity
January and February, with an average relative humidity of 75%, are the least humid months.Rainfall
The month with the least rainfall in Keselwatta is January, when the rain falls for 8.9 days and typically collects 25mm (0.98") of precipitation.Daylight
In January, the average length of the day in Keselwatta, Sri Lanka, is 11h and 47min.On the first day of the month, sunrise is at 06:21 and sunset at 18:05. On the last day of January, sunrise is at 06:28 and sunset at 18:18 +0530.
Sunshine
January has the most sunshine of the year, with an average of 9.2h of sunshine.UV index
The months with the highest UV index in Keselwatta are January through April, July, September through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 7 in January interprets into the following recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Keselwatta in January?
What is the least humid month in Keselwatta?
What is the average humidity in January in Keselwatta?
What is the driest month in Keselwatta?
How many days does it rain in January in Keselwatta?
What is the average length of the day in January in Keselwatta?
When are sunrise and sunset in January in Keselwatta?
What month has the most sunshine in Keselwatta?
How many hours of sunshine does Keselwatta have in January?
What are the months with the highest UV index in Keselwatta?
What is the UV index reading in January in Keselwatta?
Average temperature in January
Keselwatta, Sri Lanka
- Average high temperature in January: 30.3°C
The warmest months (with the highest average high temperature) are March and April (31.3°C).
The month with the lowest average high temperature is August (28.6°C).
- Average low temperature in January: 23.4°C
The month with the highest average low temperature is May (26.3°C).
The coldest month (with the lowest average low temperature) is January (23.4°C).
Average pressure in January
Keselwatta, Sri Lanka
- Average pressure in January: 1011.6mbar
The month with the highest atmospheric pressure is January (1011.6mbar).
The month with the lowest atmospheric pressure is May (1008.7mbar).
Average wind speed in January
Keselwatta, Sri Lanka
- Average wind speed in January: 12.2km/h
The windiest month (with the highest average wind speed) is June (15.9km/h).
The calmest month (with the lowest average wind speed) is March (7.9km/h).
Average humidity in January
Keselwatta, Sri Lanka
- Average humidity in January: 75%
The months with the highest relative humidity are June, July and August (83%).
The months with the lowest relative humidity are January and February (75%).
Average rainfall in January
Keselwatta, Sri Lanka
- Average rainfall in January: 25mm
The wettest month (with the highest rainfall) is June (350mm).
The driest month (with the least rainfall) is January (25mm).
Average rainfall days in January
Keselwatta, Sri Lanka
- Average rainfall days in January: 8.9 days
The months with the highest number of rainy days are July and August (29.5 days).
The month with the least rainy days is January (8.9 days).
Average daylight in January /
Average sunshine in January
Keselwatta, 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 42min).
- Average sunshine in January: 9h and 1min
The month with the most sunshine is January (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 48min).
Average sunshine days in January
Keselwatta, Sri Lanka
- Average sunshine days in January: 21 days
The month with the most sunshine days is January (21 days).
The months with the least sunshine days are June and July (0.3 days).
Average UV index in January
Keselwatta, Sri Lanka
- Average UV index in January: 7
The months with the highest UV index are January, February, March, April, July, September, October, November and December (UV index 7).
The months with the lowest UV index are May, June and August (UV index 6).
Average cloud cover in January
Keselwatta, Sri Lanka
- Average cloud cover in January: 24
The month with the most cloud cover is June (Cloud cover 55).
The month with the least cloud cover is January (Cloud cover 24).
Average visibility in January
Keselwatta, Sri Lanka
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, November and December (10km).
The months with the lowest visibility are May, June, July, August, September and October (9km).
