June weather forecast
Biyagama, Sri Lanka

The first month of the summer, June, is also a moderately hot month in Biyagama, Sri Lanka, with an average temperature ranging between min 25.8°C (78.4°F) and max 29.3°C (84.7°F).

Temperature

The start of June marks an average high-temperature of a moderately hot 29.3°C (84.7°F), hardly distinguishable from the conditions in May. Biyagama notes a consistent average low-temperature of 25.8°C (78.4°F) during June nights.

Heat index

June's average heat index is appraised at a sweltering 36°C (96.8°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

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

Rainfall

The month with the most rainfall is June, when the rain falls for 29.3 days and typically aggregates up to 341mm (13.43") of precipitation.

Daylight

June has the longest days of the year in Biyagama, Sri Lanka, with an average of 12h and 30min of daylight.
On the first day of June in Biyagama, sunrise is at 05:52 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 June, the average sunshine in Biyagama is 8h.

UV index

The months with the lowest UV index are May, June, August and October, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: During June, 6 as the daily maximum UV index converts into the following advice:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.