February weather forecast
Polonnaruwa, Sri Lanka

In February, the weather in Polonnaruwa remains within a similar spectrum as that of January, albeit with a small increase in temperature. Slightly lower rainfall and humidity levels are present, and the change in weather conditions is primarily characterized by longer daylight hours and higher solar radiation. The cooler days of January give way to slightly warmer ones, as March approaches with an expected rise in temperature and a decrease in rainfall.

Temperature

The shift into February uncovers an average high-temperature of a tropical 31.3°C (88.3°F), subtly different from the previous month. Polonnaruwa records a consistent low-temperature of 20°C (68°F) during February nights.

Heat index

February's mean heat index is evaluated at a scorching 42°C (107.6°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. 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 relevant to babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. 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 average relative humidity in February is 79%.

Rainfall

In Polonnaruwa, in February, during 13.1 rainfall days, 47mm (1.85") of precipitation is typically accumulated. In Polonnaruwa, during the entire year, the rain falls for 196.8 days and collects up to 943mm (37.13") of precipitation.

Daylight

In Polonnaruwa, the average length of the day in February is 11h and 53min.
On the first day of the month, sunrise is at 06:25 and sunset at 18:13. On the last day of February, sunrise is at 06:19 and sunset at 18:17 +0530.

Sunshine

In February, the average sunshine is 8.2h.

UV index

February through October, with an average maximum UV index of 7, are months with the highest UV index. 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: The daily high UV index of 7 during February translates into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.