June weather forecast
Kattankudy, Sri Lanka

The first month of the summer, June, is still a tropical month in Kattankudy, Sri Lanka, with an average temperature varying between 26.3°C (79.3°F) and 33°C (91.4°F).

Temperature

June, having an average high-temperature of 33°C (91.4°F) and an average low-temperature of 26.3°C (79.3°F), is the warmest month.

Heat index

In June, the heat index is calculated to be a blisteringly hot 43°C (109.4°F). Eyes open: Heat cramps and heat exhaustion are expected. Prolonged exertion could lead to heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

June and July, with an average relative humidity of 68%, are the least humid months.

Rainfall

The month with the least rainfall is June, when the rain falls for 15.3 days and typically collects 30mm (1.18") of precipitation.

Daylight

The month with the longest days in Kattankudy, Sri Lanka, is June, with an average of 12h and 36min of daylight.
On the first day of the month, sunrise is at 05:44 and sunset at 18:17. On the last day of June, in Kattankudy, sunrise is at 05:49 and sunset at 18:23 +0530.

Sunshine

The month with the most sunshine is June, with an average of 11.8h of sunshine.

UV index

The months with the highest UV index are January through October, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 7 in June translates into these instructions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.