June weather forecast
Penideniya, Sri Lanka

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

Temperature

June's average high-temperature stands at a moderately hot 29.3°C (84.7°F), showing little deviation from May's 30.1°C (86.2°F). Penideniya, in June, observes a steady average low-temperature of 21.8°C (71.2°F).

Heat index

June's mean heat index is computed to be a very hot 35°C (95°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. 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.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

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

Rainfall

In Penideniya, during June, the rain falls for 25.1 days and regularly aggregates up to 57mm (2.24") of precipitation. In Penideniya, during the entire year, the rain falls for 278.9 days and collects up to 1477mm (58.15") 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 Penideniya, 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.

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 reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index, 6 during June, leads to the following recommendations:
Fend off overexposure. Sun protection is vital. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.