March weather forecast
Polonnaruwa, Sri Lanka

March, the first month of the spring in Polonnaruwa, is still a tropical month, with an average temperature varying between 21.1°C (70°F) and 33.8°C (92.8°F).

Temperature

In Polonnaruwa, the average high-temperature in March is relatively the same as in February - a still hot 33.8°C (92.8°F). The average low-temperature, in Polonnaruwa, is 21.1°C (70°F).

Heat index

In March, the average heat index is computed to be a burning hot 48°C (118.4°F). Be wary: Heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'felt air temperature', or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like differences in body mass, height, and shape, wind, metabolic differences, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

In Polonnaruwa, the average relative humidity in March is 73%.

Rainfall

In Polonnaruwa, Sri Lanka, in March, it is raining for 14 days, with typically 38mm (1.5") of accumulated precipitation. Throughout the year, in Polonnaruwa, Sri Lanka, there are 196.8 rainfall days, and 943mm (37.13") of precipitation is accumulated.

Daylight

In March, the average length of the day is 12h and 5min.
On the first day of the month, sunrise is at 06:19 and sunset at 18:17. On the last day of March, in Polonnaruwa, sunrise is at 06:04 and sunset at 18:16 +0530.

Sunshine

In Polonnaruwa, the average sunshine in March is 9.1h.

UV index

The months with the highest UV index in Polonnaruwa are February through October, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 7 in March transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.