June weather forecast
Kelaniya, Sri Lanka

June, the first month of the summer in Kelaniya, is also a moderately hot month, with an average temperature varying between 25.8°C (78.4°F) and 29.3°C (84.7°F).

Temperature

The shift into June reveals an average high-temperature of a moderately hot 29.3°C (84.7°F), closely mirroring May's climate. Kelaniya in June observes a slight diminution in temperature from daily highs, recording a low-temperature average of 25.8°C (78.4°F).

Heat index

In June, the average heat index is calculated to be a very hot 36°C (96.8°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is found by incorporating humidity levels into the air temperature measurement. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

June through August, with an average relative humidity of 83%, are the most humid months in Kelaniya.

Rainfall

The month with the most rainfall is June, when the rain falls for 29.3 days and typically aggregates up to 341mm (13.43") of precipitation.

Daylight

June has the longest days of the year, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 05:53 and sunset at 18:23. On the last day of June, sunrise is at 05:58 and sunset at 18:29 +0530.

Sunshine

In Kelaniya, the average sunshine in June is 8h.

UV index

May, June, August and October, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: In June, the maximum UV index of 6 suggests these recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.