June weather forecast
Nainativu, Sri Lanka

The first month of the summer, June, is still a warm month in Nainativu, Sri Lanka, with an average temperature varying between 28.4°C (83.1°F) and 29.7°C (85.5°F).

Temperature

The commencement of June notes an average high-temperature of a moderately hot 29.7°C (85.5°F), exhibiting little difference from the previous month. In Nainativu, the nightly June temperatures experience a slight descent from daily highs to an average low of 28.4°C (83.1°F).

Heat index

The average heat index in June is computed to be a sweltering 36°C (96.8°F). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Heat index determinations are made taking into account the shade and light air movements. 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 'felt air temperature', combines both the air temperature and the humidity level to give a perceived human temperature. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

The average relative humidity in June is 78%.

Rainfall

In Nainativu, Sri Lanka, during June, the rain falls for 6.9 days and regularly aggregates up to 18mm (0.71") of precipitation. In Nainativu, Sri Lanka, during the entire year, the rain falls for 148.6 days and collects up to 769mm (30.28") of precipitation.

Daylight

The month with the longest days in Nainativu is June, with an average of 12h and 42min of daylight.
On the first day of the month, sunrise is at 05:49 and sunset at 18:28. On the last day of June, sunrise is at 05:54 and sunset at 18:35 +0530.

Sunshine

June has the most sunshine of the year in Nainativu, with an average of 11.6h of sunshine.

UV index

The months with the highest UV index in Nainativu are January through October and December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 7 in June interprets into the following recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.