May weather forecast
Ranpokunagama, Sri Lanka

May, the last month of the spring in Ranpokunagama, is also a hot month, with an average temperature ranging between min 26.4°C (79.5°F) and max 30.8°C (87.4°F).

Temperature

May experiences an average high-temperature of a still hot 30.8°C (87.4°F), barely different from April's 32°C (89.6°F). Throughout May, Ranpokunagama records a steady low-temperature average of 26.4°C (79.5°F), a minor decrease from its daytime counterpart.

Heat index

The heat index in May is evaluated at a blistering 40°C (104°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In Ranpokunagama, Sri Lanka, the average relative humidity in May is 80%.

Rainfall

In Ranpokunagama, in May, during 26.3 rainfall days, 204mm (8.03") of precipitation is typically accumulated. In Ranpokunagama, Sri Lanka, during the entire year, the rain falls for 265.4 days and collects up to 1744mm (68.66") of precipitation.

Daylight

In May, the average length of the day in Ranpokunagama is 12h and 27min.
On the first day of May in Ranpokunagama, sunrise is at 05:55 and sunset at 18:17. On the last day of the month, sunrise is at 05:52 and sunset at 18:22 +0530.

Sunshine

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

UV index

The months with the lowest UV index are May, June, August and October, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 6 during May translates into the following guidance:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.