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
Deniyaya sees the arrival of January with an average high-temperature of a still moderately hot 29.3°C (84.7°F), indicating a subtle variation from December. In January, the nighttime temperature in Deniyaya lowers to an average of 18.8°C (65.8°F).Heat index
During January, the heat index is calculated to be a fiery hot 36°C (96.8°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.In the scope of the heat index, its values resonate with shade and light wind conditions. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.
Humidity
The months with the lowest humidity are January and February, with an average relative humidity of 80%.Rainfall
The month with the least rainfall in Deniyaya, Sri Lanka, is January, when the rain falls for 18.9 days and typically collects 85mm (3.35") of precipitation.Daylight
The average length of the day in January is 11h and 48min.On the first day of the month, sunrise is at 06:18 and sunset at 18:03. On the last day of January, sunrise is at 06:25 and sunset at 18:16 +0530.
Sunshine
In Deniyaya, the average sunshine in January is 8.3h.UV index
The months with the highest UV index are January through August, November and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In January, a regular UV index of 6 translates into these guidelines:
Inhibit overexposure. Warding off sun damage is of utmost importance. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is January in Deniyaya?
What are the least humid months in Deniyaya?
What is the average humidity in January in Deniyaya?
What is the driest month in Deniyaya?
How many days does it rain in January in Deniyaya?
How many hours of daylight does Deniyaya have in January?
When are sunrise and sunset in January in Deniyaya?
How long on average sun shines in January in Deniyaya?
What are the months with the highest UV index in Deniyaya?
What is the UV index intensity in January in Deniyaya?
Average temperature in January
Deniyaya, Sri Lanka
- Average high temperature in January: 29.3°C
The warmest month (with the highest average high temperature) is March (31.1°C).
The months with the lowest average high temperature are June and July (27.3°C).
- Average low temperature in January: 18.8°C
The months with the highest average low temperature are May and June (21.8°C).
The coldest month (with the lowest average low temperature) is February (18.7°C).
Average pressure in January
Deniyaya, 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 (1008.6mbar).
Average wind speed in January
Deniyaya, Sri Lanka
- Average wind speed in January: 4.2km/h
The windiest month (with the highest average wind speed) is July (8.8km/h).
The calmest months (with the lowest average wind speed) are February and March (3.9km/h).
Average humidity in January
Deniyaya, Sri Lanka
- Average humidity in January: 80%
The months with the highest relative humidity are May and June (88%).
The months with the lowest relative humidity are January and February (80%).
Average rainfall in January
Deniyaya, Sri Lanka
- Average rainfall in January: 85mm
The wettest month (with the highest rainfall) is October (357mm).
The driest month (with the least rainfall) is January (85mm).
Average rainfall days in January
Deniyaya, Sri Lanka
- Average rainfall days in January: 18.9 days
The month with the highest number of rainy days is May (29.8 days).
The month with the least rainy days is January (18.9 days).
Average daylight in January /
Average sunshine in January
Deniyaya, 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: 8h and 2min
The month with the most sunshine is April (Average sunshine: 8h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in January
Deniyaya, Sri Lanka
- Average sunshine days in January: 9.2 days
The month with the most sunshine days is January (9.2 days).
The month with the least sunshine days is April (0.2 days).
Average UV index in January
Deniyaya, Sri Lanka
- Average UV index in January: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, November and December (UV index 6).
The months with the lowest UV index are September and October (UV index 5).
Average cloud cover in January
Deniyaya, Sri Lanka
- Average cloud cover in January: 33
The month with the most cloud cover is June (Cloud cover 65).
The month with the least cloud cover is January (Cloud cover 33).
Average visibility in January
Deniyaya, Sri Lanka
- Average visibility in January: 8km
The months with the highest visibility are January, February, March, June, July, August and December (8km).
The months with the lowest visibility are April, May, September, October and November (7km).
