May weather forecast
Pannala, Sri Lanka

The last month of the spring, May, is another tropical month in Pannala, Sri Lanka, with an average temperature fluctuating between 30.8°C (87.4°F) and 26.4°C (79.5°F).

Temperature

The commencement of May introduces an average high-temperature of a still hot 30.8°C (87.4°F), closely mirroring the preceding month. During May's nights, Pannala notes a minor temperature decline, reaching an average of 26.4°C (79.5°F).

Heat index

The heat index value for May is computed to be a scorching 40°C (104°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

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

Rainfall

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

Daylight

The average length of the day in May in Pannala, Sri Lanka, is 12h and 28min.
On the first day of the month, sunrise is at 05:55 and sunset at 18:18. On the last day of May, sunrise is at 05:52 and sunset at 18:23 +0530.

Sunshine

The average sunshine in May in Pannala 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 value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: In May, a daily UV index of 6 turns into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.