March weather forecast
Wattala, Sri Lanka

The first month of the spring, March, is still a tropical month in Wattala, Sri Lanka, with temperature in the range of an average low of 24.3°C (75.7°F) and an average high of 31.8°C (89.2°F).

Temperature

Wattala witnesses its highest average temperatures during March and April, peaking at 31.8°C (89.2°F).

Heat index

March's heat index is evaluated at a blisteringly hot 42°C (107.6°F). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

The average relative humidity in March in Wattala is 76%.

Rainfall

In Wattala, in March, during 19.8 rainfall days, 66mm (2.6") of precipitation is typically accumulated. In Wattala, during the entire year, the rain falls for 289.4 days and collects up to 2262mm (89.06") of precipitation.

Sea temperature

In Wattala, Sri Lanka, the average seawater temperature in March is 29.1°C (84.4°F).
Note: With water temperature from 25°C (77°F) to 29°C (84.2°F), all water activities are comfortable and delightful, devoid of discomfort even for lengthened periods.

Daylight

In Wattala, Sri Lanka, the average length of the day in March is 12h and 5min.
On the first day of the month, sunrise is at 06:22 and sunset at 18:22. On the last day of March, sunrise is at 06:08 and sunset at 18:20 +0530.

Sunshine

In Wattala, the average sunshine in March is 9h.

UV index

January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index in Wattala. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 7 in March translates into this advice:
Guard against overexposure. Protection from sun-induced harm is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Alert! Sand and water increase UV exposure due to their reflective properties.