June weather forecast
Kalmunai, Sri Lanka

June brings some respite from Kalmunai's soaring temperatures, with a slight drop to an average maximum of 33°C (91.4°F). Additionally, the town sees a significant decrease in rainfall, alluding to the dry end of the monsoon season. The drop in precipitation also affects the humidity, causing a noticeable decrease. The negligible monsoonal influence and high temperatures evoke characteristics of tropical summer in June. However, the reduced precipitation provides relief, veering the weather slightly away from the preceding monsoon-dominated months.

Temperature

June, with its high-temperature average of 33°C (91.4°F) and a low-temperature average of 26.3°C (79.3°F), is the warmest month.

Heat index

In June, the average heat index is computed to be an extremely hot 43°C (109.4°F). Take note: Heat exhaustion and heat cramps are expected. Heatstroke can occur with prolonged effort.
Data suggests that the heat index is set for environments in shade and with a light wind. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

The months with the lowest humidity in Kalmunai are June and July, with an average relative humidity of 68%.

Rainfall

The month with the least rainfall is June, when the rain falls for 15.3 days and typically collects 30mm (1.18") of precipitation.

Sea temperature

In Kalmunai, in June, the average water temperature is 29.4°C (84.9°F).
Note: Water temperatures from 25°C (77°F) to 29°C (84.2°F) make swimming, diving, and similar activities highly pleasurable and enjoyable for long periods without discomfort.

Daylight

The month with the longest days is June, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 05:44 and sunset at 18:16. On the last day of June, sunrise is at 05:49 and sunset at 18:22 +0530.

Sunshine

With an average of 11.8h of sunshine, June has the most sunshine of the year.

UV index

January through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high UV index of 7 in June translates into the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.