July weather forecast
Negombo, Sri Lanka

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.