November weather forecast
Negombo, Sri Lanka

Negombo, Sri Lanka, in November, offers considerably stable weather conditions with slightly cooler temperatures than in October. Despite a reduction in rainfall, the landscape remains lush, enhancing the city's beauty. The sea temperature remains warm, appreciated by water activity enthusiasts. Declining wind speeds further optimize sightseeing and outdoor pursuits. While daylight hours start to decrease, there are still sufficient hours for daytime exploration.

Temperature

As Negombo, Sri Lanka, transitions from October to November, the average high-temperatures adjust to a tropical 30.2°C (86.4°F), nearly the same as the previous 29.9°C (85.8°F). An average low-temperature of 24.5°C (76.1°F) is expected in Negombo during November.

Heat index

The heat index value for November is computed to be a sweltering 38°C (100.4°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

The average relative humidity in November is 79%.

Rainfall

In Negombo, in November, it is raining for 23.3 days, with typically 174mm (6.85") of accumulated precipitation. Throughout the year, there are 265.4 rainfall days, and 1744mm (68.66") of precipitation is accumulated.

Sea temperature

In November, the average sea temperature in Negombo is 28.8°C (83.8°F).
Note: Water temperatures ranging between 25°C (77°F) and 29°C (84.2°F) are regarded as very warm, making swimming, diving, and similar water activities pleasurable for extended periods.

Daylight

The average length of the day in November in Negombo, Sri Lanka, is 11h and 48min.
On the first day of November, sunrise is at 05:58 and sunset at 17:50. On the last day of the month, sunrise is at 06:07 and sunset at 17:51 +0530.

Sunshine

With an average of 6.6h of sunshine, November has the least sunshine of the year in Negombo.

UV index

The months with the highest UV index are January through April, July, September, November and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In November, the average maximum UV index of 7 translates into the following recommendations:
Deter overexposure. Protecting against the sun's effects is essential. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Note! Reflective surfaces like sand and water heighten the UV radiation levels.