June weather forecast
Hirana, Sri Lanka

The first month of the summer, June, is still a warm month in Hirana, Sri Lanka, with an average temperature fluctuating between 26.1°C (79°F) and 29.2°C (84.6°F).

Temperature

The shift from May to June is characterized by an average high-temperature of a warm 29.2°C (84.6°F), not significantly different from the 30.2°C (86.4°F) of May. Hirana, during June nights, records a temperature marginally cooler than the daytime average, at 26.1°C (79°F).

Heat index

In June, the heat index is calculated to be a fiery hot 36°C (96.8°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a composite of temperature and humidity figures to convey how warm it feels. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. 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. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

The months with the highest humidity are June through August, with an average relative humidity of 83%.

Rainfall

June is the month with the most rainfall. Rain falls for 29.2 days and accumulates 350mm (13.78") 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 June in Hirana, sunrise is at 05:53 and sunset at 18:22. On the last day of the month, sunrise is at 05:58 and sunset at 18:29 +0530.

Sunshine

In Hirana, the average sunshine in June is 8.2h.

UV index

The months with the lowest UV index are May, June and August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In June, the maximum UV index of 6 transforms into these recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.