July weather forecast
Sirimalwatta, Sri Lanka

July, like June, in Sirimalwatta, Sri Lanka, is another warm summer month, with an average temperature varying between 21.4°C (70.5°F) and 29.3°C (84.7°F).

Temperature

Entering July, the average high-temperature is recorded at a still warm 29.3°C (84.7°F), maintaining parity with June. Sirimalwatta's temperature drops to an average low of 21.4°C (70.5°F) during the nights of July.

Heat index

In July, the average heat index is evaluated at a very hot 35°C (95°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. 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. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In Sirimalwatta, the average relative humidity in July is 77%.

Rainfall

In Sirimalwatta, Sri Lanka, in July, during 24.3 rainfall days, 88mm (3.46") of precipitation is typically accumulated. In Sirimalwatta, during the entire year, the rain falls for 278.4 days and collects up to 1466mm (57.72") of precipitation.

Daylight

In July, the average length of the day in Sirimalwatta is 12h and 30min.
On the first day of the month, sunrise is at 05:55 and sunset at 18:27. On the last day of July, sunrise is at 06:00 and sunset at 18:26 +0530.

Sunshine

In Sirimalwatta, the average sunshine in July is 10.2h.

UV index

The months with the highest UV index in Sirimalwatta are January through September, November and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 6 in July translates into this advice:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.