July weather forecast
Devinuwara, Sri Lanka

July

Weather in July

July, the same as June, is another warm summer month in Devinuwara, Sri Lanka, with an average temperature varying between 29.6°C (85.3°F) and 25.6°C (78.1°F).

Temperature

July's arrival registers an average high-temperature of a still moderately hot 29.6°C (85.3°F), matching the conditions of the preceding month. July nights document an average temperature reading of 25.6°C (78.1°F).

Heat index

For July, the heat index is appraised at a sweltering 36°C (96.8°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a single figure representing how weather conditions feel when combining temperature and humidity. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In Devinuwara, the average relative humidity in July is 79%.

Rainfall

In Devinuwara, in July, during 11.8 rainfall days, 29mm (1.14") of precipitation is typically accumulated. In Devinuwara, during the entire year, the rain falls for 180 days and collects up to 509mm (20.04") of precipitation.

Daylight

In July, the average length of the day in Devinuwara is 12h and 26min.
On the first day of the month, sunrise is at 05:57 and sunset at 18:25. On the last day of July, sunrise is at 06:02 and sunset at 18:25 +0530.

Sunshine

In July, the average sunshine is 8.5h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In July, the maximum UV index of 7 translates into these guidelines:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. To cut down UV radiation exposure by about half, sport a wide-brim hat.

Frequently asked questions

Is it hot in Devinuwara during July?
In Devinuwara, in July, the average high-temperature is 29.6°C (85.3°F), and the average low-temperature is 25.6°C (78.1°F). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in July is appraised at 36°C (96.8°F).
What is the average humidity in July in Devinuwara?
In Devinuwara, the average relative humidity in July is 79%.
How many days does it rain in July in Devinuwara?
In Devinuwara, during July, the rain falls for 11.8 days and regularly aggregates up to 29mm (1.14") of precipitation.
What is the average length of the day in July?
The average day length in July is 12h and 26min.
When are sunrise and sunset in July?
On the first day of July, sunrise is at 05:57 and sunset at 18:25. On the last day of the month, sunrise is at 06:02 and sunset at 18:25 +0530.
How many hours of sunshine does Devinuwara have in July?
In Devinuwara, the average sunshine duration in July is 8.5h.
What are the months with the highest UV index?
The months with the highest UV index are January through December, with an average maximum UV index of 7.
What are the months with the lowest UV index?
January through December, with an average maximum UV index of 7, are months with the lowest UV index.
How high is the UV index in July?
In July, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health 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 - Devinuwara, Sri Lanka
Average temperature in July
Devinuwara, Sri Lanka
  • Average high temperature in July: 29.6°C

The warmest months (with the highest average high temperature) are March and April (31.1°C).
The month with the lowest average high temperature is September (29.1°C).

  • Average low temperature in July: 25.6°C

The month with the highest average low temperature is May (26.3°C).
The coldest month (with the lowest average low temperature) is January (23°C).

Average pressure in July - Devinuwara, Sri Lanka
Average pressure in July
Devinuwara, Sri Lanka
  • Average pressure in July: 1009.2mbar

The month with the highest atmospheric pressure is January (1011.4mbar).
The month with the lowest atmospheric pressure is May (1008.9mbar).

Average wind speed in July - Devinuwara, Sri Lanka
Average wind speed in July
Devinuwara, Sri Lanka
  • Average wind speed in July: 18.9km/h

The windiest month (with the highest average wind speed) is July (18.9km/h).
The calmest month (with the lowest average wind speed) is January (9km/h).

Average humidity in July - Devinuwara, Sri Lanka
Average humidity in July
Devinuwara, Sri Lanka
  • Average humidity in July: 79%

The months with the highest relative humidity are May, September and November (81%).
The months with the lowest relative humidity are January and February (77%).

Average rainfall in July - Devinuwara, Sri Lanka
Average rainfall in July
Devinuwara, Sri Lanka
  • Average rainfall in July: 29mm

The wettest month (with the highest rainfall) is November (66mm).
The driest month (with the least rainfall) is January (22mm).

Average rainfall days in July - Devinuwara, Sri Lanka
Average rainfall days in July
Devinuwara, Sri Lanka
  • Average rainfall days in July: 11.8 days

The month with the highest number of rainy days is November (19.8 days).
The month with the least rainy days is June (10.7 days).

Average daylight in July / Average sunshine in July - Devinuwara, Sri Lanka
Average daylight in July /
Average sunshine in July
Devinuwara, Sri Lanka
  • Average daylight in July: 12h and 2min

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 48min).

  • Average sunshine in July: 8h and 3min

The month with the most sunshine is April (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).

Average sunshine days in July - Devinuwara, Sri Lanka
Average sunshine days in July
Devinuwara, Sri Lanka
  • Average sunshine days in July: 17.8 days

The month with the most sunshine days is July (17.8 days).
The month with the least sunshine days is November (7.8 days).

Average UV index in July - Devinuwara, Sri Lanka
Average UV index in July
Devinuwara, Sri Lanka
  • Average UV index in July: 7

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

Average cloud cover in July - Devinuwara, Sri Lanka
Average cloud cover in July
Devinuwara, Sri Lanka
  • Average cloud cover in July: 49

The month with the most cloud cover is June (Cloud cover 53).
The month with the least cloud cover is February (Cloud cover 26).

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

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

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