July weather forecast
Heerassagala, Sri Lanka

July

Weather in July

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

Temperature

Heerassagala experiences an average high-temperature of a still warm 29.3°C (84.7°F) in July, mirroring June's climate. The temperature dips to an average of 21.4°C (70.5°F) during July nights.

Heat index

The heat index value for July is evaluated at a fiery hot 35°C (95°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

In July, the average relative humidity is 77%.

Rainfall

In Heerassagala, Sri Lanka, in July, during 24.3 rainfall days, 88mm (3.46") of precipitation is typically accumulated. Throughout the year, there are 278.4 rainfall days, and 1466mm (57.72") of precipitation is accumulated.

Daylight

In Heerassagala, Sri Lanka, the average length of the day in July 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 18:27 +0530.

Sunshine

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

UV index

The months with the highest UV index are January through September, November and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 6 during July leads to these instructions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Experience reduced UV exposure by about half when donning a wide-brim hat.

Frequently asked questions

How hot is it in Heerassagala in July?
The high-temperature, in July, in Heerassagala, records 29.3°C (84.7°F), while the low-temperature is 21.4°C (70.5°F). In July, the average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 35°C (95°F).
What is the average humidity in July in Heerassagala?
In Heerassagala, Sri Lanka, the average relative humidity in July is 77%.
How many days does it rain in July in Heerassagala?
In Heerassagala, in July, during 24.3 rainfall days, 88mm (3.46") of precipitation is typically accumulated.
How many hours of daylight does Heerassagala have in July?
In Heerassagala, Sri Lanka, the average day length in July is 12h and 30min.
When is the sunrise / sunset in July in Heerassagala?
In July, on the first day of the month, sunrise is at 05:55 and sunset at 18:27. On the last day of the month, in Heerassagala, Sri Lanka, sunrise is at 06:00 and sunset at 18:27 +0530.
How long on average sun shines in July in Heerassagala?
The average sunshine duration in July in Heerassagala is 10.2h.
When is the highest UV index in Heerassagala?
The months with the highest UV index in Heerassagala, Sri Lanka, are January through September, November and December, with an average maximum UV index of 6.
What is the UV index reading in July in Heerassagala?
In July, the average daily maximum UV index in Heerassagala, Sri Lanka, is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in July - Heerassagala, Sri Lanka
Average temperature in July
Heerassagala, Sri Lanka
  • Average high temperature in July: 29.3°C

The warmest month (with the highest average high temperature) is March (31.5°C).
The month with the lowest average high temperature is December (27.5°C).

  • Average low temperature in July: 21.4°C

The months with the highest average low temperature are May and June (21.8°C).
The coldest month (with the lowest average low temperature) is February (18.1°C).

Average pressure in July - Heerassagala, Sri Lanka
Average pressure in July
Heerassagala, Sri Lanka
  • Average pressure in July: 1008.2mbar

The month with the highest atmospheric pressure is January (1011.8mbar).
The month with the lowest atmospheric pressure is June (1008.1mbar).

Average wind speed in July - Heerassagala, Sri Lanka
Average wind speed in July
Heerassagala, Sri Lanka
  • Average wind speed in July: 12.6km/h

The windiest month (with the highest average wind speed) is June (13.5km/h).
The calmest month (with the lowest average wind speed) is April (4.7km/h).

Average humidity in July - Heerassagala, Sri Lanka
Average humidity in July
Heerassagala, Sri Lanka
  • Average humidity in July: 77%

The month with the highest relative humidity is December (84%).
The month with the lowest relative humidity is March (74%).

Average rainfall in July - Heerassagala, Sri Lanka
Average rainfall in July
Heerassagala, Sri Lanka
  • Average rainfall in July: 88mm

The wettest month (with the highest rainfall) is October (301mm).
The driest month (with the least rainfall) is January (38mm).

Average rainfall days in July - Heerassagala, Sri Lanka
Average rainfall days in July
Heerassagala, Sri Lanka
  • Average rainfall days in July: 24.3 days

The month with the highest number of rainy days is May (28.6 days).
The month with the least rainy days is January (14.1 days).

Average daylight in July / Average sunshine in July - Heerassagala, Sri Lanka
Average daylight in July /
Average sunshine in July
Heerassagala, Sri Lanka
  • Average daylight in July: 12h and 3min

The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 42min).

  • Average sunshine in July: 10h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in July - Heerassagala, Sri Lanka
Average sunshine days in July
Heerassagala, Sri Lanka
  • Average sunshine days in July: 2.8 days

The month with the most sunshine days is January (14.8 days).
The month with the least sunshine days is May (1.2 days).

Average UV index in July - Heerassagala, Sri Lanka
Average UV index in July
Heerassagala, Sri Lanka
  • Average UV index in July: 6

The months with the highest UV index are January, February, March, April, May, June, July, August, September, November and December (UV index 6).
The month with the lowest UV index is October (UV index 5).

Average cloud cover in July - Heerassagala, Sri Lanka
Average cloud cover in July
Heerassagala, Sri Lanka
  • Average cloud cover in July: 35

The months with the most cloud cover are November and December (Cloud cover 47).
The month with the least cloud cover is March (Cloud cover 27).

Average visibility in July - Heerassagala, Sri Lanka
Average visibility in July
Heerassagala, Sri Lanka
  • Average visibility in July: 10km

The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March, April, November and December (8km).

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