March weather forecast
Kalmunai, Sri Lanka

March presents an interesting transitional phase in weather patterns in Kalmunai. The temperature continues its rise, but the city sees a departure from the pervasive rain of the previous months, with rainfall dwindling to 39mm (1.54"). The decrease in precipitation also brings a slight dimming in the city's humidity levels, settling at 76%. Though slight, the changes in temperature and rainfall patterns add an element of unpredictability to the weather. The city, thus, offers an intriguing mixture of sunshine and unanticipated showers.

Temperature

The transition from February to March sees an average high-temperature of a tropical 30.1°C (86.2°F), indicating a minor variance from the prior month. In Kalmunai, the nighttime temperature averages to a warm 24.8°C (76.6°F) during March.

Heat index

The heat index value for March is estimated at a very hot 37°C (98.6°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

In Kalmunai, Sri Lanka, the average relative humidity in March is 76%.

Rainfall

In March, the rain falls for 12.8 days. Throughout March, 39mm (1.54") of precipitation is accumulated. In Kalmunai, during the entire year, the rain falls for 237.8 days and collects up to 1259mm (49.57") of precipitation.

Sea temperature

In March, the average sea temperature in Kalmunai, Sri Lanka, is 28.9°C (84°F).
Note: Swimming, diving, and other water activities in the temperature range of 25°C (77°F) to 29°C (84.2°F) are perceived as very enjoyable and comfortable for prolonged durations.

Daylight

In March, the average length of the day in Kalmunai is 12h and 5min.
On the first day of March in Kalmunai, sunrise is at 06:15 and sunset at 18:14. On the last day of the month, sunrise is at 06:01 and sunset at 18:12 +0530.

Sunshine

The average sunshine in March in Kalmunai is 9.4h.

UV index

The months with the highest UV index are January 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 rays for the average person.
Note: An average UV index of 7 in March transforms into this advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Experience reduced UV exposure by about half when donning a wide-brim hat. Take caution! The UV rays from the Sun gain strength from sand and water reflections.