May weather forecast
Alampil, Sri Lanka

May, the last month of the spring in Alampil, is another hot month, with an average temperature varying between 33.1°C (91.6°F) and 25.1°C (77.2°F).

Temperature

At the start of May, Alampil's average high-temperature reaches a still hot 33.1°C (91.6°F), subtly different from the preceding month. Alampil observes an average nighttime temperature of 25.1°C (77.2°F) during May.

Heat index

For May, the heat index is computed to be a burning hot 47°C (116.6°F). Stay watchful: Heat exhaustion along with heat cramps are likely. Ongoing effort may cause heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In Alampil, the average relative humidity in May is 76%.

Rainfall

In May, the rain falls for 16.4 days. Throughout May, 74mm (2.91") of precipitation is accumulated. In Alampil, during the entire year, the rain falls for 199.1 days and collects up to 893mm (35.16") of precipitation.

Daylight

The average length of the day in May in Alampil is 12h and 32min.
On the first day of May in Alampil, sunrise is at 05:50 and sunset at 18:17. On the last day of the month, sunrise is at 05:45 and sunset at 18:23 +0530.

Sunshine

The months with the most sunshine in Alampil, Sri Lanka, are May and July, with an average of 10.2h of sunshine.

UV index

The months with the highest UV index are February through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily high UV index of 7 in May translates into this advice:
Inhibit overexposure. Warding off sun damage is of utmost importance. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.