March weather forecast
Hiriwadunna, Sri Lanka

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

Temperature

As Hiriwadunna welcomes March, the average high-temperature stabilizes at a still hot 33.8°C (92.8°F), showing little deviation from February's 31.3°C (88.3°F). Marked by a significant drop from the daytime highs, Hiriwadunna's average low-temperature in March stands at a pleasant 21.1°C (70°F).

Heat index

The heat index for March is appraised at a life-threatening hot 48°C (118.4°F). Precaution: Heat cramps along with heat exhaustion are possible. Heatstroke is a serious risk with continued exertion.
One should consider that heat index numbers are for shaded settings and light wind. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

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

Rainfall

In Hiriwadunna, during March, the rain falls for 14 days and regularly aggregates up to 38mm (1.5") of precipitation. Throughout the year, in Hiriwadunna, 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 in Hiriwadunna is 12h and 5min.
On the first day of the month, sunrise is at 06:19 and sunset at 18:18. On the last day of March, sunrise is at 06:05 and sunset at 18:17 +0530.

Sunshine

The average sunshine in March in Hiriwadunna is 9.1h.

UV index

The months with the highest UV index in Hiriwadunna are February through October, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 7 during March leads to these instructions:
Guard oneself from overexposure. Defence against sun injury is vital. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.