June weather forecast
Polonnaruwa, Sri Lanka

In June, Polonnaruwa welcomes dominantly dry weather. Both temperature and precipitation remain fairly low, marking a contrast to the heavier rainfall seen in May. With an average rainfall of just 15mm (0.59") over nearly eight days, June is identified as the driest month of the year in Polonnaruwa.

Temperature

The shift into June finds Polonnaruwa, Sri Lanka, at an average high-temperature of a still tropical 33.6°C (92.5°F), closely comparable to May's conditions. The month of June records an average low-temperature of 24.8°C (76.6°F).

Heat index

June's heat index is evaluated at an extremely hot 44°C (111.2°F). On guard: Heat exhaustion and heat cramps are predicted. Heatstroke is a potential hazard with continuous physical effort.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

June through September, with an average relative humidity of 67%, are the least humid months.

Rainfall

The month with the least rainfall is June, when the rain falls for 7.8 days and typically collects 15mm (0.59") of precipitation.

Daylight

The month with the longest days is June, with an average of 12h and 36min of daylight.
On the first day of the month, sunrise is at 05:47 and sunset at 18:20. On the last day of June, sunrise is at 05:52 and sunset at 18:27 +0530.

Sunshine

With an average of 11.3h of sunshine, June has the most sunshine of the year.

UV index

The months with the highest UV index are February through October, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.
Note: An average UV index of 7 in June transforms into this advice:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.