May weather forecast
Mirigama, Sri Lanka

The last month of the spring, May, is another tropical month in Mirigama, Sri Lanka, with an average temperature ranging between min 26.4°C (79.5°F) and max 30.8°C (87.4°F).

Temperature

The commencement of May records an average high-temperature of a still hot 30.8°C (87.4°F), barely varying from April's 32°C (89.6°F). Mirigama documents a consistent average low-temperature of 26.4°C (79.5°F) at night during May.

Heat index

The heat index value for May is calculated to be a scorching 40°C (104°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. 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.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

In May, the average relative humidity is 80%.

Rainfall

In Mirigama, in May, it is raining for 26.3 days, with typically 204mm (8.03") of accumulated precipitation. In Mirigama, Sri Lanka, 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 May is 12h and 27min.
On the first day of May in Mirigama, sunrise is at 05:55 and sunset at 18:18. On the last day of the month, sunrise is at 05:51 and sunset at 18:22 +0530.

Sunshine

In Mirigama, the average sunshine in May is 8.8h.

UV index

May, June, August and October, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 6 during May translates into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.