January weather forecast
Dunagaha, Sri Lanka

January is a tropical winter month in Dunagaha, Sri Lanka, with an average temperature varying between 22.8°C (73°F) and 30.8°C (87.4°F).

Temperature

The beginning of January reveals an average high-temperature of a tropical 30.8°C (87.4°F), showing minimal deviation from the previous month. Dunagaha, in January, witnesses an average low-temperature of 22.8°C (73°F).

Heat index

The heat index for January is calculated to be a fiery hot 38°C (100.4°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly important for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The months with the lowest humidity in Dunagaha are January and February, with an average relative humidity of 73%.

Rainfall

January is the month with the least rainfall. Rain falls for 9.7 days and accumulates 29mm (1.14") of precipitation.

Daylight

In Dunagaha, Sri Lanka, the average length of the day in January is 11h and 46min.
On the first day of the month, sunrise is at 06:21 and sunset at 18:04. On the last day of January, in Dunagaha, Sri Lanka, sunrise is at 06:28 and sunset at 18:17 +0530.

Sunshine

The months with the most sunshine are January through April, with an average of 9.2h of sunshine.

UV index

The months with the highest UV index in Dunagaha are January through April, July, September, November and December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum daily UV index of 7 during January morphs into the following directions:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.