March weather forecast
Heerassagala, Sri Lanka

The first month of the spring, March, is a tropical month in Heerassagala, Sri Lanka, with temperature in the range of an average high of 31.5°C (88.7°F) and an average low of 19.2°C (66.6°F).

Temperature

March brings the highest temperatures, with an average high of 31.5°C (88.7°F) and an average low of 19.2°C (66.6°F).

Heat index

March's heat index is evaluated at a blisteringly hot 40°C (104°F). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

With an average relative humidity of 74%, March is the least humid month.

Rainfall

In Heerassagala, in March, it is raining for 18.9 days, with typically 72mm (2.83") of accumulated precipitation. In Heerassagala, Sri Lanka, during the entire year, the rain falls for 278.4 days and collects up to 1466mm (57.72") of precipitation.

Daylight

In March, the average length of the day in Heerassagala, Sri Lanka, is 12h and 5min.
On the first day of March in Heerassagala, sunrise is at 06:20 and sunset at 18:19. On the last day of the month, sunrise is at 06:05 and sunset at 18:17 +0530.

Sunshine

In Heerassagala, the average sunshine in March is 8.9h.

UV index

The months with the highest UV index in Heerassagala, Sri Lanka, are January through September, November and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 6 during March translates into the following directions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.