July weather forecast
Siyambalapitiya, Sri Lanka

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Weather in July

July, like June, in Siyambalapitiya, Sri Lanka, is a moderately hot summer month, with an average temperature varying between 29.3°C (84.7°F) and 21.4°C (70.5°F).

Temperature

Siyambalapitiya's July experiences a high-temperature average of a still warm 29.3°C (84.7°F), matching the temperature of June. The temperature lowers 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 sweltering 35°C (95°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

In July, the average relative humidity is 77%.

Rainfall

In July, the rain falls for 24.3 days. Throughout July, 88mm (3.46") of precipitation is accumulated. In Siyambalapitiya, during the entire year, the rain falls for 278.9 days and collects up to 1477mm (58.15") of precipitation.

Daylight

The average length of the day in July is 12h and 29min.
On the first day of the month, sunrise is at 05:58 and sunset at 18:30. On the last day of July, sunrise is at 06:03 and sunset at 18:29 +0530.

Sunshine

The average sunshine in July is 10.2h.

UV index

January through September, November and December, with an average maximum UV index of 6, are months with the highest UV index in Siyambalapitiya. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 in July converts into the following recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
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Frequently asked questions

Is it hot in Siyambalapitiya during July?

In July, in Siyambalapitiya, the average high-temperature is 29.3°C (84.7°F), and the average low-temperature is 21.4°C (70.5°F). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is evaluated at 35°C (95°F).

What is the average humidity in July in Siyambalapitiya?

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

How much does it rain in Siyambalapitiya in July?

In Siyambalapitiya, during July, the rain falls for 24.3 days and regularly aggregates up to 88mm (3.46") of precipitation.

How many hours of daylight does Siyambalapitiya have in July?

The average day length in July in Siyambalapitiya is 12h and 29min.

When is the sunrise / sunset in July in Siyambalapitiya?

On the first day of July in Siyambalapitiya, sunrise is at 05:58 and sunset at 18:30. On the last day of the month, sunrise is at 06:03 and sunset at 18:29 +0530.

How many hours of sunshine does Siyambalapitiya have in July?

In July, the average sunshine duration in Siyambalapitiya is 10.2h.

When is the highest UV index in Siyambalapitiya?

The months with the highest UV index are January through September, November and December, with an average maximum UV index of 6.

What is the UV index reading in July in Siyambalapitiya?

In July, the average daily maximum UV index in Siyambalapitiya is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.

Average temperature in July
Siyambalapitiya, Sri Lanka

Average temperature in July - Siyambalapitiya, 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).

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Average pressure in July
Siyambalapitiya, Sri Lanka

Average pressure in July - Siyambalapitiya, 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).

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Average wind speed in July
Siyambalapitiya, Sri Lanka

Average wind speed in July - Siyambalapitiya, 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).

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Average humidity in July
Siyambalapitiya, Sri Lanka

Average humidity in July - Siyambalapitiya, 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%).

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Average rainfall in July
Siyambalapitiya, Sri Lanka

Average rainfall in July - Siyambalapitiya, 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).

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Average rainfall days in July
Siyambalapitiya, Sri Lanka

Average rainfall days in July - Siyambalapitiya, 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).

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Average daylight in July /
Average sunshine in July
Siyambalapitiya, Sri Lanka

Average daylight in July / Average sunshine in July - Siyambalapitiya, 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).

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Average sunshine days in July
Siyambalapitiya, Sri Lanka

Average sunshine days in July - Siyambalapitiya, 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).

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Average UV index in July
Siyambalapitiya, Sri Lanka

Average UV index in July - Siyambalapitiya, 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).

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Average cloud cover in July
Siyambalapitiya, Sri Lanka

Average cloud cover in July - Siyambalapitiya, 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).

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Average visibility in July
Siyambalapitiya, Sri Lanka

Average visibility in July - Siyambalapitiya, 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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Siyambalapitiya, Sri Lanka

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