June weather forecast
Periyamulla, Sri Lanka

June, the first month of the summer in Periyamulla, is still a warm month, with an average temperature ranging between max 29.6°C (85.3°F) and min 25.9°C (78.6°F).

Temperature

At the onset of June, Periyamulla records an average high-temperature of a warm 29.6°C (85.3°F), showing little deviation from the preceding month. Periyamulla's nighttime average temperature in June subtly descends to 25.9°C (78.6°F) from the daily highs.

Heat index

During June, the heat index is estimated at a sweltering 37°C (98.6°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

June through August, with an average relative humidity of 82%, are the most humid months in Periyamulla.

Rainfall

June is the month with the most rainfall in Periyamulla. Rain falls for 27.6 days and accumulates 231mm (9.09") of precipitation.

Daylight

With an average of 12h and 30min of daylight, June has the longest days of the year in Periyamulla, Sri Lanka.
On the first day of the month, sunrise is at 05:53 and sunset at 18:24. On the last day of June, sunrise is at 05:58 and sunset at 18:30 +0530.

Sunshine

In Periyamulla, the average sunshine in June is 8.2h.

UV index

The months with the lowest UV index in Periyamulla are May, June, August and October, 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 radiation for the ordinary person.
Note: In June, the maximum UV index of 6 translates into these guidelines:
Prevent overexposure. Protection from the sun's harmful effects is needed. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.