May weather forecast
Balapitiya, Sri Lanka

May, the last month of the spring in Balapitiya, is also a moderately hot month, with an average temperature ranging between max 29.5°C (85.1°F) and min 26.7°C (80.1°F).

Temperature

In May, Balapitiya notes an average high-temperature of a warm 29.5°C (85.1°F), hardly different from the preceding month. Balapitiya observes a slightly reduced average nighttime temperature of 26.7°C (80.1°F) during May.

Heat index

The heat index for May is calculated to be a very hot 36°C (96.8°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gauges the sensation of temperature factoring in the air's moisture content. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular importance for 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 physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

In Balapitiya, the average relative humidity in May is 81%.

Rainfall

May is the month with the most rainfall in Balapitiya, Sri Lanka. Rain falls for 27.7 days and accumulates 302mm (11.89") of precipitation.

Daylight

In Balapitiya, the average length of the day in May is 12h and 25min.
On the first day of May, sunrise is at 05:56 and sunset at 18:17. On the last day of the month, sunrise is at 05:53 and sunset at 18:21 +0530.

Sunshine

The average sunshine in May is 9h.

UV index

May and September, with an average maximum UV index of 6, are months with the lowest UV index in Balapitiya. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 6 during May translates into these guidelines:
Prevent overexposure. Protection from the sun's harmful effects is needed. 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. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.