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

With average high temperatures of 33°C (91.4°F) and lows of 26.3°C (79.3°F), June is the warmest month.

Heat index

During June, the heat index is estimated at a blistering 43°C (109.4°F). Eyes open: Heat cramps and heat exhaustion are expected. Prolonged exertion could lead to heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

June and July, with an average relative humidity of 68%, are the least humid months.

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, the average seawater temperature in June is 29.4°C (84.9°F).
Note: Swimming, diving, and other water activities in the temperature range of 25°C (77°F) to 29°C (84.2°F) are perceived as very enjoyable and comfortable for prolonged durations.

Daylight

With an average of 12h and 30min of daylight, June has the longest days of the year.
On the first day of the month, sunrise is at 05:44 and sunset at 18:16. On the last day of June, in Kalmunai, 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

The months with the highest UV index are January through October, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: In June, an average UV index of 7 transforms into the following instructions:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.