July weather forecast and climate
Negombo, Sri Lanka

July, like June, in Negombo, Sri Lanka, is a warm summer month, with temperature in the range of an average high of 29°C (84.2°F) and an average low of 25°C (77°F).

Temperature

June through December, with an average high-temperature of 29°C (84.2°F), are the coldest months.

Rainfall

In Negombo, in July, during 10 rainfall days, 135mm (5.3") of precipitation is typically accumulated. Throughout the year, in Negombo, Sri Lanka, there are 125 rainfall days, and 2345mm (92.3") of precipitation is accumulated.

Sea temperature

In July, the average sea temperature in Negombo is 27.3°C (81.1°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

Months with the longest days in Negombo are May through July, with an average of 12.5h of daylight.

Sunshine

June through October, with an average of 6h of sunshine, are months with the least sunshine.

UV index

Months with the highest UV index are February through October, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an ultimate health vulnerability from the exposure to the Sun's UV rays for average individuals.
The average daily UV index of 12 transform into the following instructions:
Take all necessary precautions, as unprotected skin can burn in minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the coldest month in Negombo?

The coldest months in Negombo are June through December, with an average high-temperature of 29°C (84.2°F).

What is the temperature in July in Negombo?

The average high-temperature, in July, in Negombo, is 29°C (84.2°F), while the average low-temperature is 25°C (77°F).

How many days does it rain in July in Negombo?

In July, the rain falls for 10 days. Throughout July, 135mm (5.3") of precipitation is accumulated.

How warm is the water in July in Negombo?

In Negombo, the average seawater temperature in July is 27.3°C (81.1°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

When are the longest days in Negombo?

Months with the longest days are May through July, with an average of 12.5h of daylight.

What is the average length of the day in July in Negombo?

In July, the average length of the day in Negombo, Sri Lanka, is 12.5h.

What is the month with the least sunshine in Negombo?

June through October, with an average of 6h of sunshine, are months with the least sunshine in Negombo.

How long on average sun shines in July in Negombo?

In July, the average sunshine in Negombo is 6h.

What are the months with the highest UV index in Negombo?

February through October, with an average maximum UV index of 12, are months with the highest UV index.

What is the UV index reading in July in Negombo?

In Negombo, Sri Lanka, the average daily maximum UV index in July is 12. A UV Index of 11, and more, symbolizes an extreme health threat from the exposure to the Sun's UV rays.
Average temperature in July - Negombo, Sri Lanka
  • Average high temperature in July: 29°C

Warmest months (with the highest average high temperature) are February, March, April and May (31°C).
Months with the lowest average high temperature are June, July, August, September, October, November and December (29°C).

  • Average low temperature in July: 25°C

The month with the highest average low temperature is May (26°C).
Coldest months (with the lowest average low temperature) are January, February and December (22°C).

Average rainfall in July - Negombo, Sri Lanka
  • Average rainfall in July: 135mm

The wettest month (with the highest rainfall) is May (371mm).
The driest month (with the lowest rainfall) is February (69mm).

Average rainfall days in July - Negombo, Sri Lanka
  • Average rainfall days in July: 10 days

Months with the highest number of rainy days are October and November (15 days).
Months with the lowest number of rainy days are January and February (4 days).

Average sea temperature in July - Negombo, Sri Lanka
  • Average sea temperature in July: 27.3°C

The best month for swimming (with the highest average sea temperature) is April (29.7°C).
The coldest month (with the lowest average sea temperature) is August (27°C).

Average daylight in July / Average sunshine in July - Negombo, Sri Lanka
  • Average daylight in July: 12.5h

Months with the longest days are May, June and July (Average daylight: 12.5h).
The month with shortest days is December (Average daylight: 11.7h).

  • Average sunshine in July: 6h

The month with most sunshine is March (Average sunshine: 9h).
Months with least sunshine are June, July, August, September and October (Average sunshine: 6).

Average UV index in July - Negombo, Sri Lanka
  • Average UV index in July: 12

Months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
Months with the lowest UV index are January, November and December (UV index 11).

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