May weather forecast
Piyadigama, Sri Lanka

May, the last month of the spring in Piyadigama, is another warm month, with an average temperature varying between 27.1°C (80.8°F) and 29.6°C (85.3°F).

Temperature

The transition from April to May sees average high-temperatures adjusting to a warm 29.6°C (85.3°F), from a not significantly different 30.3°C (86.5°F). In Piyadigama, the nighttime temperature shows a slight difference from the daytime high, averaging to 27.1°C (80.8°F) during May.

Heat index

The heat index value during May is computed to be a very hot 36°C (96.8°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', joins air temperature with relative humidity to produce a temperature perception for humans. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In Piyadigama, the average relative humidity in May is 80%.

Rainfall

May is the month with the most rainfall. Rain falls for 28 days and accumulates 263mm (10.35") of precipitation.

Daylight

In Piyadigama, the average length of the day in May is 12h and 24min.
On the first day of May, sunrise is at 05:56 and sunset at 18:16. On the last day of the month, sunrise is at 05:53 and sunset at 18:20 +0530.

Sunshine

In May, the average sunshine in Piyadigama is 9.1h.

UV index

The months with the lowest UV index are May, June and September, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 6 in May translates into these instructions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.