June weather forecast
Heerassagala, Sri Lanka

The first month of the summer, June, is also a moderately hot month in Heerassagala, Sri Lanka, with an average temperature fluctuating between 21.8°C (71.2°F) and 29.3°C (84.7°F).

Temperature

The onset of June marks an average high-temperature of a moderately hot 29.3°C (84.7°F), hardly differing from May's 30.1°C (86.2°F). Heerassagala's temperature in June lowers to a consistent average of 21.8°C (71.2°F) during the nights.

Heat index

During June, the heat index is evaluated at a sweltering 35°C (95°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', takes into account both air temperature and humidity to illustrate what people actually feel. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical to babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

In Heerassagala, the average relative humidity in June is 77%.

Rainfall

In June, in Heerassagala, the rain falls for 25.1 days. Throughout June, 57mm (2.24") of precipitation is accumulated. In Heerassagala, during the entire year, the rain falls for 278.4 days and collects up to 1466mm (57.72") of precipitation.

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 05:49 and sunset at 18:20. On the last day of June, sunrise is at 05:55 and sunset at 18:27 +0530.

Sunshine

With an average of 10.8h of sunshine, June has the most sunshine of the year.

UV index

January through September, November and December, with an average maximum UV index of 6, are months with the highest UV index in Heerassagala. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 6 in June transforms into the following instructions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.