June weather forecast
Radawadunna, Sri Lanka

The first month of the summer, June, is also a moderately hot month in Radawadunna, Sri Lanka, with an average temperature varying between 29.6°C (85.3°F) and 25.9°C (78.6°F).

Temperature

The average high-temperature in June, at a moderately hot 29.6°C (85.3°F), reveals a modest deviation from May's 30.8°C (87.4°F). Radawadunna records a consistent average nighttime temperature of 25.9°C (78.6°F) in June, slightly lower than the daytime high.

Heat index

June's average heat index is evaluated at a sweltering 37°C (98.6°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', determines the feeling of heat when you account for the relative humidity. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

The months with the highest humidity are June through August, with an average relative humidity of 82%.

Rainfall

The month with the most rainfall is June, when the rain falls for 27.6 days and typically aggregates up to 231mm (9.09") of precipitation.

Daylight

The month with the longest days is June, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 05:51 and sunset at 18:22. On the last day of June, sunrise is at 05:57 and sunset at 18:29 +0530.

Sunshine

In June, the average sunshine is 8.2h.

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 reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 6 in June translates into these instructions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.