June weather forecast
Dematagahapelessa, Sri Lanka

June, the first month of the summer in Dematagahapelessa, is still a hot month, with temperature in the range of an average high of 31°C (87.8°F) and an average low of 22.8°C (73°F).

Temperature

The arrival of June coincides with an average high-temperature of a still hot 31°C (87.8°F), indicating a minimal shift from May's 31.8°C (89.2°F). The average low-temperature of 22.8°C (73°F) is witnessed during June.

Heat index

The heat index value during June is calculated to be a very hot 39°C (102.2°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
When assessing, remember that heat index measurements are for light winds and shaded spots. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In Dematagahapelessa, the average relative humidity in June is 74%.

Rainfall

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

Daylight

June has the longest days of the year, with an average of 12h and 36min of daylight.
On the first day of the month, sunrise is at 05:50 and sunset at 18:22. On the last day of June, sunrise is at 05:55 and sunset at 18:29 +0530.

Sunshine

With an average of 11h of sunshine, June has the most sunshine of the year.

UV index

March through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.
Note: The daily high UV index of 7 during June translates into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.