May weather forecast
Nonagama, Sri Lanka

May, the last month of the spring in Nonagama, is also a hot month, with temperature in the range of an average low of 26.7°C (80.1°F) and an average high of 30.8°C (87.4°F).

Temperature

Stepping into May, Nonagama records an average high-temperature of a still hot 30.8°C (87.4°F), almost consistent with April. Nonagama sees a minor drop to an average minimum temperature of 26.7°C (80.1°F) during the night in the month of May.

Heat index

During May, the heat index is computed to be a torrid 39°C (102.2°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Records show heat index calculations are tailored for shaded regions and mild winds. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

In Nonagama, the average relative humidity in May is 77%.

Rainfall

In Nonagama, in May, during 17.8 rainfall days, 72mm (2.83") of precipitation is typically accumulated. In Nonagama, during the entire year, the rain falls for 192.9 days and collects up to 942mm (37.09") of precipitation.

Daylight

The average length of the day in May is 12h and 24min.
On the first day of May, sunrise is at 05:52 and sunset at 18:13. On the last day of the month, sunrise is at 05:50 and sunset at 18:17 +0530.

Sunshine

In May, the average sunshine is 10.9h.

UV index

January through September, November and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum daily UV index of 7 during May morphs into the following directions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.