June weather forecast
Hedeniya, Sri Lanka

The first month of the summer, June, is still a warm month in Hedeniya, Sri Lanka, with an average temperature varying between 29.3°C (84.7°F) and 21.8°C (71.2°F).

Temperature

Hedeniya experiences an average high-temperature of a warm 29.3°C (84.7°F) in June, subtly different from May's 30.1°C (86.2°F). Hedeniya reports an average low-temperature of 21.8°C (71.2°F) during the nights of June.

Heat index

The heat index for June is estimated at a sweltering 35°C (95°F). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Heat index data is primarily for areas with shade and subjected to light winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', reflects the feeling of heat when considering both air temperature and humidity. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely vital to babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

In Hedeniya, the average relative humidity in June is 77%.

Rainfall

In Hedeniya, during June, the rain falls for 25.1 days and regularly aggregates up to 57mm (2.24") of precipitation. Throughout the year, there are 278.4 rainfall days, and 1466mm (57.72") of precipitation is accumulated.

Daylight

The month with the longest days is June, with an average of 12h and 30min of daylight.
On the first day of June in Hedeniya, Sri Lanka, sunrise is at 05:49 and sunset at 18:21. On the last day of the month, sunrise is at 05:55 and sunset at 18:27 +0530.

Sunshine

With an average of 10.8h of sunshine, June has the most sunshine of the year in Hedeniya.

UV index

January through September, November and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 6 during June translates into the following guidance:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.