May weather forecast
Hembarawa, Sri Lanka

The last month of the spring, May, is also a hot month in Hembarawa, Sri Lanka, with temperature in the range of an average low of 23°C (73.4°F) and an average high of 31.8°C (89.2°F).

Temperature

The start of May marks an average high-temperature of a still hot 31.8°C (89.2°F), hardly distinguishable from the conditions in April. Hembarawa's nighttime temperature during May is consistently averaged at a warm 23°C (73.4°F).

Heat index

The heat index for May is appraised at a blisteringly hot 42°C (107.6°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
The standards for the heat index are set for locations in shade and under light breezes. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly important for children. 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.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In Hembarawa, Sri Lanka, the average relative humidity in May is 77%.

Rainfall

In Hembarawa, during May, the rain falls for 21.6 days and regularly aggregates up to 117mm (4.61") of precipitation. In Hembarawa, during the entire year, the rain falls for 217.7 days and collects up to 1165mm (45.87") of precipitation.

Daylight

In Hembarawa, the average length of the day in May is 12h and 28min.
On the first day of the month, sunrise is at 05:51 and sunset at 18:14. On the last day of May, in Hembarawa, sunrise is at 05:47 and sunset at 18:19 +0530.

Sunshine

The average sunshine in May in Hembarawa is 10.7h.

UV index

March through September, 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 threat to health from unsafe exposure to UV radiation for average individuals.
Note: In May, the maximum UV index of 7 transforms into these recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.