October weather forecast
Trincomalee, Sri Lanka

Trincomalee witnesses a significant transition in weather conditions from September to October. The 214mm (8.43") of rainfall indicates October as the rainiest month of the year. This enormous surge in rainfall is juxtaposed with limit in the number of sunshine days. Notwithstanding the increased wet conditions, the overall temperatures remain steady, ensuring a warm environment despite the rain. The balance between sun, rain, and a drop in wind speed crafts a unique ambiance during October.

Temperature

October's arrival brings an average high-temperature of a still tropical 32.7°C (90.9°F), demonstrating subtle variation from the preceding month. In October, Trincomalee's temperature tends to fall to an average low of 23.2°C (73.8°F) during the night.

Heat index

The heat index in October is estimated at a blazing hot 45°C (113°F). Note: Heat exhaustion and heat cramps are probable. Heatstroke can follow with prolonged activity.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Trincomalee, the average relative humidity in October is 75%.

Rainfall

October is the month with the most rainfall. Rain falls for 22.6 days and accumulates 214mm (8.43") of precipitation.

Sea temperature

In October, the average sea temperature in Trincomalee is 29.3°C (84.7°F).
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) are excellent for swimming, diving, and other water activities, providing comfort and enjoyment for extended periods without discomfort.

Daylight

In Trincomalee, Sri Lanka, the average length of the day in October is 11h and 56min.
On the first day of October in Trincomalee, sunrise is at 05:53 and sunset at 17:56. On the last day of the month, sunrise is at 05:54 and sunset at 17:43 +0530.

Sunshine

In October, the average sunshine in Trincomalee, Sri Lanka, is 8.3h.

UV index

The months with the highest UV index in Trincomalee are February through October, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: In October, a daily UV index of 7 turns into the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Heads up! UV intensity is amplified by reflections from water and sand.