June weather forecast
Hiyarapitiya, Sri Lanka

June, the first month of the summer in Hiyarapitiya, is still a warm month, with temperature in the range of an average high of 29.3°C (84.7°F) and an average low of 21.8°C (71.2°F).

Temperature

The average high-temperature is a warm 29.3°C (84.7°F) in June, hardly different from the 30.1°C (86.2°F) recorded in May. In the month of June, Hiyarapitiya witnesses a consistent average low-temperature of 21.8°C (71.2°F).

Heat index

The heat index value 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.
Data suggests that the heat index is set for environments in shade and with a light wind. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

The average relative humidity in June in Hiyarapitiya is 77%.

Rainfall

In Hiyarapitiya, during June, the rain falls for 25.1 days and regularly aggregates up to 57mm (2.24") of precipitation. In Hiyarapitiya, 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 in Hiyarapitiya, Sri Lanka, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 05:50 and sunset at 18:21. On the last day of June, in Hiyarapitiya, Sri Lanka, sunrise is at 05:55 and sunset at 18:27 +0530.

Sunshine

The month with the most sunshine is June, with an average of 10.8h of sunshine.

UV index

The months with the highest UV index in Hiyarapitiya are January through September, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.
Note: The UV index of 6 in June translates into these instructions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.