October weather forecast
Matara, Sri Lanka

October ushers in a slight resurgence in high temperatures to 29.6°C (85.3°F), from 29.1°C (84.4°F) in September. The city experiences more frequent showers, bringing about a refreshing change from the preceding drier months. Although the sea temperature remains slightly warmer, it does not deter water activities, courtesy of the calming sea breezes. With slightly more than half the month covered in clouds, this period offers the chance to witness some breathtaking sunsets. October signifies a balance between the lingering warmth of summer and the beginning of cooler days.

Temperature

September's transformation into October witnesses an average high-temperature of a still moderately hot 29.6°C (85.3°F) in Matara, noting a minor change from the preceding month. October in Matara witnesses a minor deviation from daytime peaks, with an average nighttime temperature of 25.3°C (77.5°F).

Heat index

October's mean heat index is estimated at a torrid 36°C (96.8°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly meaningful for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In October, the average relative humidity is 80%.

Rainfall

In October, in Matara, the rain falls for 17.5 days. Throughout October, 63mm (2.48") of precipitation is accumulated. Throughout the year, in Matara, there are 180 rainfall days, and 509mm (20.04") of precipitation is accumulated.

Sea temperature

In Matara, the average seawater temperature in October is 28.7°C (83.7°F).
Note: 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

The average length of the day in October in Matara is 11h and 59min.
On the first day of the month, sunrise is at 05:55 and sunset at 17:59. On the last day of October, sunrise is at 05:53 and sunset at 17:48 +0530.

Sunshine

In October, the average sunshine in Matara is 8.1h.

UV index

The months with the highest UV index in Matara are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Matara, Sri Lanka, are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In October, a regular UV index of 7 translates into these guidelines:
Fend off overexposure. Sun protection is vital. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be wary! Reflections from sand and water make UV radiation more intense.