May weather forecast
Ambalangoda, Sri Lanka

The last month of the spring, May, is also a moderately hot month in Ambalangoda, Sri Lanka, with temperature in the range of an average low of 26.7°C (80.1°F) and an average high of 29.5°C (85.1°F).

Temperature

May's arrival shows an average high-temperature of a moderately hot 29.5°C (85.1°F), hardly different from the previous month. May notes an average low temperature of 26.7°C (80.1°F), subtly down from the daytime highs.

Heat index

For most parts of May, the heat index is computed to be a fiery hot 36°C (96.8°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

The average relative humidity in May is 81%.

Rainfall

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

Sea temperature

In Ambalangoda, the average seawater temperature in May is 29.1°C (84.4°F).
Note: For swimming, diving, and similar activities, the water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered delightful, allowing for extended periods of enjoyment without discomfort.

Daylight

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

In Ambalangoda, the average sunshine in May is 9h.

UV index

The months with the lowest UV index are May and September, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: A maximum high daily UV index of 6 during May translates into the following directions:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be careful! The Sun's UV radiation is accentuated by reflecting off sand and water.