June weather forecast
Mandandawela, Sri Lanka

June, the first month of the summer in Mandandawela, is still a hot month, with an average temperature varying between 31°C (87.8°F) and 22.8°C (73°F).

Temperature

In June, the average high-temperature registers at a still hot 31°C (87.8°F), nearly identical to May's 31.8°C (89.2°F). In June, Mandandawela experiences an average nighttime temperature of 22.8°C (73°F).

Heat index

Throughout June, the heat index is calculated to be a very hot 39°C (102.2°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In June, the average relative humidity in Mandandawela, Sri Lanka, is 74%.

Rainfall

June is the month with the least rainfall in Mandandawela, Sri Lanka. Rain falls for 14.7 days and accumulates 29mm (1.14") of precipitation.

Daylight

June has the longest days of the year in Mandandawela, Sri Lanka, with an average of 12h and 36min of daylight.
On the first day of June, sunrise is at 05:49 and sunset at 18:21. On the last day of the month, sunrise is at 05:54 and sunset at 18:27 +0530.

Sunshine

The month with the most sunshine is June, with an average of 11h of sunshine.

UV index

The months with the highest UV index are March through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 7 during June translates into the following directions:
Inhibit overexposure. Warding off sun damage is of utmost importance. 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. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.