January weather forecast
Piliyandala, Sri Lanka

January is a tropical winter month in Piliyandala, Sri Lanka, with an average temperature ranging between min 23.3°C (73.9°F) and max 30.3°C (86.5°F).

Temperature

The onset of January notes an average high-temperature of a tropical 30.3°C (86.5°F), subtly shifted from December's 29.7°C (85.5°F). Piliyandala reports a consistent average low-temperature of 23.3°C (73.9°F) throughout January nights.

Heat index

January's average heat index is evaluated at a fiery hot 37°C (98.6°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. 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.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

The least humid month in Piliyandala is January, with an average relative humidity of 74%.

Rainfall

The month with the least rainfall in Piliyandala is January, when the rain falls for 11.2 days and typically collects 37mm (1.46") of precipitation.

Daylight

In Piliyandala, the average length of the day in January is 11h and 47min.
On the first day of January in Piliyandala, sunrise is at 06:21 and sunset at 18:05. On the last day of the month, sunrise is at 06:28 and sunset at 18:18 +0530.

Sunshine

With an average of 9.2h of sunshine, January has the most sunshine of the year in Piliyandala.

UV index

The months with the highest UV index 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 unsafe exposure to UV radiation for average individuals.
Note: In January, the maximum UV index of 7 suggests this advice:
Deter overexposure. Protecting against the sun's effects is essential. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.