June weather forecast
Lunuwila, Sri Lanka

The first month of the summer, June, is also a moderately hot month in Lunuwila, Sri Lanka, with an average temperature fluctuating between 25.9°C (78.6°F) and 29.6°C (85.3°F).

Temperature

June commences with an average high-temperature of a moderately hot 29.6°C (85.3°F), showing little deviation from May's 30.8°C (87.4°F). Lunuwila's nocturnal average in June closely mirrors its daytime temperatures, settling at 25.9°C (78.6°F).

Heat index

The average heat index in June is estimated at a sweltering 37°C (98.6°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', melds the effects of warmth and moisture to generate a feeling of heat. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

The months with the highest humidity are June through August, with an average relative humidity of 82%.

Rainfall

June is the month with the most rainfall. Rain falls for 27.6 days and accumulates 231mm (9.09") 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, sunrise is at 05:52 and sunset at 18:24. On the last day of the month, sunrise is at 05:57 and sunset at 18:30 +0530.

Sunshine

The average sunshine in June is 8.2h.

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 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:
Resist overexposure. Safeguarding from solar damage is indispensable. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.