May weather forecast
Tissamaharama, Sri Lanka

The last month of the spring, May, is also a hot month in Tissamaharama, Sri Lanka, with an average temperature ranging between min 26.7°C (80.1°F) and max 30.8°C (87.4°F).

Temperature

The advent of May presents an average high-temperature of a still tropical 30.8°C (87.4°F), maintaining a close correlation with the preceding month. A modest decline from daytime high temperatures in Tissamaharama is noticed in May, marking the average low at a moderately hot 26.7°C (80.1°F).

Heat index

The heat index value for May is evaluated at a fiery hot 39°C (102.2°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. 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 human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

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

Rainfall

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

Daylight

In Tissamaharama, the average length of the day in May is 12h and 25min.
On the first day of May, sunrise is at 05:51 and sunset at 18:12. On the last day of the month, sunrise is at 05:48 and sunset at 18:16 +0530.

Sunshine

In Tissamaharama, Sri Lanka, the average sunshine in May 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 in Tissamaharama. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 7 during May translates into the following guidance:
Fend off overexposure. Sun protection is vital. 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. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.