July weather forecast
Negombo, Sri Lanka

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Weather in July

July's weather exhibits similar characteristics to June, with high rainfall and comfortable temperatures in Negombo, Sri Lanka. Visibility remains high, rendering it ideal for exploring the city's spectacular landscapes. July holds steady wind speeds, which provide relief from the slightly higher temperatures. Despite the increased rainfall, Negombo remains a stunning location with a tremendous natural appeal. The UV index remains steady, emphasizing the need for skin protection when outdoors.

Temperature

With average temperatures fluctuating between a high of 29.2°C (84.6°F) and a low of 25.5°C (77.9°F), July stands out as the coldest month in Negombo.

Heat index

In July, the heat index is computed to be a sweltering 36°C (96.8°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

The months with the highest humidity are June through August, with an average relative humidity of 82%.

Rainfall

In Negombo, in July, it is raining for 27.7 days, with typically 177mm (6.97") of accumulated precipitation. Throughout the year, there are 265.4 rainfall days, and 1744mm (68.66") of precipitation is accumulated.

Sea temperature

In Negombo, the average seawater temperature in July is 27.3°C (81.1°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are regarded as highly pleasant, making all water activities enjoyable without any discomfort over long durations.

Daylight

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

Sunshine

In July, the average sunshine in Negombo, Sri Lanka, is 8h.

UV index

January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 7 during July translates into the following guidance:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Warning! The reflection of sand and water increases the UV dose.

Frequently asked questions

What are the coldest months in Negombo?

The coldest period tends to be July, when average temperatures fluctuate between a high of 29.2°C (84.6°F) and a low of 25.5°C (77.9°F).

How hot is it in Negombo in July?

The high-temperature, in July, in Negombo, is 29.2°C (84.6°F), while the low-temperature averages to 25.5°C (77.9°F). In July, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is computed to be 36°C (96.8°F).

What is the most humid month in Negombo?

The months with the highest humidity are June through August, with an average relative humidity of 82%.

What is the average humidity in July in Negombo?

In Negombo, the average relative humidity in July is 82%.

How much does it rain in Negombo in July?

In July, the rain falls for 27.7 days. Throughout July, 177mm (6.97") of precipitation is accumulated.

What is the sea water temperature in July in Negombo?

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.

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

In Negombo, the average day length in July is 12h and 30min.

What time are sunrise and sunset in July in Negombo?

In July, on the first day of the month, sunrise is at 05:58 and sunset at 18:30. On the last day of the month, in Negombo, Sri Lanka, sunrise is at 06:03 and sunset at 18:30 +0530.

How long on average sun shines in July in Negombo?

The average sunshine duration in July in Negombo is 8h.

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

January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index in Negombo.

What is the UV index intensity in July in Negombo?

The average daily maximum UV index in July in Negombo, Sri Lanka, is 7. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.

Average temperature in July
Negombo, Sri Lanka

Average temperature in July - Negombo, Sri Lanka
  • Average high temperature in July: 29.2°C

The warmest month (with the highest average high temperature) is March (32.1°C).
The month with the lowest average high temperature is July (29.2°C).

  • Average low temperature in July: 25.5°C

The month with the highest average low temperature is May (26.4°C).
The coldest month (with the lowest average low temperature) is January (22.8°C).

Average pressure in July
Negombo, Sri Lanka

Average pressure in July - Negombo, Sri Lanka
  • Average pressure in July: 1008.5mbar

The month with the highest atmospheric pressure is January (1011.7mbar).
The months with the lowest atmospheric pressure are May and June (1008.4mbar).

Average wind speed in July
Negombo, Sri Lanka

Average wind speed in July - Negombo, Sri Lanka
  • Average wind speed in July: 17.1km/h

The windiest month (with the highest average wind speed) is June (18.3km/h).
The calmest month (with the lowest average wind speed) is March (9.1km/h).

Average humidity in July
Negombo, Sri Lanka

Average humidity in July - Negombo, Sri Lanka
  • Average humidity in July: 82%

The months with the highest relative humidity are June, July and August (82%).
The months with the lowest relative humidity are January and February (73%).

Average rainfall in July
Negombo, Sri Lanka

Average rainfall in July - Negombo, Sri Lanka
  • Average rainfall in July: 177mm

The wettest month (with the highest rainfall) is June (231mm).
The driest month (with the least rainfall) is January (29mm).

Average rainfall days in July
Negombo, Sri Lanka

Average rainfall days in July - Negombo, Sri Lanka
  • Average rainfall days in July: 27.7 days

The month with the highest number of rainy days is August (28.4 days).
The month with the least rainy days is January (9.7 days).

Average sea temperature in July
Negombo, Sri Lanka

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 / Average sunshine in July - Negombo, 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: 8h and 0min

The months with the most sunshine are January, February, March and April (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 36min).

Average sunshine days in July
Negombo, Sri Lanka

Average sunshine days in July - Negombo, Sri Lanka
  • Average sunshine days in July: 2.1 days

The month with the most sunshine days is January (20 days).
The month with the least sunshine days is August (1.2 days).

Average UV index in July
Negombo, Sri Lanka

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

The months with the highest UV index are January, February, March, April, July, September, November and December (UV index 7).
The months with the lowest UV index are May, June, August and October (UV index 6).

Average cloud cover in July
Negombo, Sri Lanka

Average cloud cover in July - Negombo, Sri Lanka
  • Average cloud cover in July: 51

The month with the most cloud cover is June (Cloud cover 57).
The month with the least cloud cover is January (Cloud cover 21).

Average visibility in July
Negombo, Sri Lanka

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

The months with the highest visibility are January, February, March, April, June, July, September and December (10km).
The months with the lowest visibility are May, August, October and November (9km).

Negombo, Sri Lanka

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