June weather forecast
Chilaw, Sri Lanka

June, the first month of the summer in Chilaw, is also a moderately hot month, with temperature in the range of an average low of 25.9°C (78.6°F) and an average high of 29.6°C (85.3°F).

Temperature

The shift into June finds Chilaw at an average high-temperature of a warm 29.6°C (85.3°F), closely comparable to May's conditions. June in Chilaw is characterized by a steady nighttime low-temperature of 25.9°C (78.6°F).

Heat index

The average heat index in June is appraised at a torrid 37°C (98.6°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. 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 are largely significant for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

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

Rainfall

The month with the most rainfall is June, when the rain falls for 27.6 days and typically aggregates up to 231mm (9.09") of precipitation.

Sea temperature

In Chilaw, in June, the average water temperature is 28.3°C (82.9°F).
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) are excellent for swimming, diving, and other water activities, providing comfort and enjoyment for extended periods without discomfort.

Daylight

June has the longest days of the year, with an average of 12h and 36min of daylight.
On the first day of June, sunrise is at 05:52 and sunset at 18:24. On the last day of the month, sunrise is at 05:57 and sunset at 18:31 +0530.

Sunshine

The average sunshine in June in Chilaw, Sri Lanka, is 8.2h.

UV index

May, June, August and October, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In June, an average UV index of 6 transforms into the following instructions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Warning! Sand and water reflections boost the intensity of UV exposure.