March weather forecast
Gampaha, Sri Lanka

The weather in Gampaha makes a significant leap in March. There is an escalation in rainfall, reaching 55mm (2.17") over 18.2 days, indicative of the impending monsoon season. Despite this, the temperatures are still reasonably warm, whilst the hours of sunshine show a minor increase. The increase in cloud coverage signifies a direct correlation with the escalation in rainfall. However, the city still enjoys a good amount of natural daylight and the winds are calm, making March ideal for indoor activities.

Temperature

March, with an average high of 32.1°C (89.8°F) and a low of 24.5°C (76.1°F), signifies the warmest month of the year.

Heat index

March's mean heat index is appraised at a scorching 43°C (109.4°F). Mindful: Heat cramps and heat exhaustion are to be expected. Extended physical effort might result in heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

The average relative humidity in March is 75%.

Rainfall

In Gampaha, in March, it is raining for 18.2 days, with typically 55mm (2.17") of accumulated precipitation. In Gampaha, during the entire year, the rain falls for 265.4 days and collects up to 1744mm (68.66") of precipitation.

Daylight

The average length of the day in March in Gampaha is 12h and 5min.
On the first day of March, sunrise is at 06:22 and sunset at 18:21. On the last day of the month, sunrise is at 06:08 and sunset at 18:19 +0530.

Sunshine

The months with the most sunshine in Gampaha are January through April, with an average of 9.2h of sunshine.

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 Gampaha. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum daily UV index of 7 during March morphs into the following directions:
Ward off overexposure. Defence against solar harm is crucial. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.