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
With January's arrival, Dematagahapelessa notes an average high-temperature of a still moderately hot 29.3°C (84.7°F), closely following the trend of the preceding month. The temperature dips to an average of 19°C (66.2°F) during January nights.Heat index
During January, the heat index is calculated to be a sweltering 35°C (95°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.Heat index details are generally centered around shaded locations and a mild breeze. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', gives a temperature feeling by integrating air temperature and humidity. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.
Humidity
In Dematagahapelessa, the average relative humidity in January is 79%.Rainfall
In Dematagahapelessa, in January, during 14 rainfall days, 34mm (1.34") of precipitation is typically accumulated. Throughout the year, there are 217.7 rainfall days, and 1165mm (45.87") of precipitation is accumulated.Daylight
The average length of the day in January is 11h and 44min.On the first day of January, sunrise is at 06:20 and sunset at 18:02. On the last day of the month, sunrise is at 06:27 and sunset at 18:16 +0530.
Sunshine
In January, the average sunshine is 8.4h.UV index
January, February, October through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 6 during January translates into the following directions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in January?
What is the average humidity in January?
How much does it rain in January?
How many hours of daylight does Dematagahapelessa have in January?
When is the sunrise / sunset in January?
How many hours of sunshine does Dematagahapelessa have in January?
What is the month with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Dematagahapelessa, Sri Lanka
- Average high temperature in January: 29.3°C
The warmest month (with the highest average high temperature) is April (32.9°C).
The month with the lowest average high temperature is December (28.6°C).
- Average low temperature in January: 19°C
The month with the highest average low temperature is May (23°C).
The coldest month (with the lowest average low temperature) is February (18.9°C).
Average pressure in January
Dematagahapelessa, Sri Lanka
- Average pressure in January: 1011.9mbar
The month with the highest atmospheric pressure is January (1011.9mbar).
The month with the lowest atmospheric pressure is June (1007.9mbar).
Average wind speed in January
Dematagahapelessa, Sri Lanka
- Average wind speed in January: 9.1km/h
The windiest month (with the highest average wind speed) is June (16.5km/h).
The calmest month (with the lowest average wind speed) is April (5.6km/h).
Average humidity in January
Dematagahapelessa, Sri Lanka
- Average humidity in January: 79%
The month with the highest relative humidity is December (83%).
The months with the lowest relative humidity are March and September (72%).
Average rainfall in January
Dematagahapelessa, Sri Lanka
- Average rainfall in January: 34mm
The wettest month (with the highest rainfall) is October (267mm).
The driest month (with the least rainfall) is June (29mm).
Average rainfall days in January
Dematagahapelessa, Sri Lanka
- Average rainfall days in January: 14 days
The month with the highest number of rainy days is April (24.7 days).
The month with the least rainy days is February (11.8 days).
Average daylight in January /
Average sunshine in January
Dematagahapelessa, 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: 8h and 2min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in January
Dematagahapelessa, Sri Lanka
- Average sunshine days in January: 14.8 days
The month with the most sunshine days is January (14.8 days).
The month with the least sunshine days is April (4 days).
Average UV index in January
Dematagahapelessa, Sri Lanka
- Average UV index in January: 6
The months with the highest UV index are March, April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, October, November and December (UV index 6).
Average cloud cover in January
Dematagahapelessa, Sri Lanka
- Average cloud cover in January: 35
The months with the most cloud cover are November and December (Cloud cover 46).
The month with the least cloud cover is March (Cloud cover 24).
Average visibility in January
Dematagahapelessa, Sri Lanka
- Average visibility in January: 8km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, November and December (8km).
