October weather forecast
Kalutara, Sri Lanka

October in Kalutara exhibits a drier atmosphere, a slight incline in temperature, and reduced cloudiness. With a considerable decline in rain, compared to September, October has 192mm (7.56") of average rainfall. Outdoor activities become more favorable owing to the decline in rainfall and an increase in sunshine duration. The tropical climate permits warmer temperatures throughout the month, thus an excellent time for exploring the coastal city.

Temperature

Kalutara marks the arrival of October with an average high-temperature of a still moderately hot 29.6°C (85.3°F), hardly different from September's 28.8°C (83.8°F). October nights document an average temperature reading of 25.5°C (77.9°F).

Heat index

During October, the heat index is evaluated at a torrid 36°C (96.8°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended 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 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

The average relative humidity in October is 80%.

Rainfall

In Kalutara, during October, the rain falls for 25.2 days and regularly aggregates up to 192mm (7.56") of precipitation. In Kalutara, during the entire year, the rain falls for 273.8 days and collects up to 2059mm (81.06") of precipitation.

Sea temperature

In October, the average sea temperature is 28.6°C (83.5°F).
Note: Swimming, diving, and other activities in water temperatures between 25°C (77°F) and 29°C (84.2°F) are thought to be quite enjoyable and satisfying for extended periods, with no discomfort.

Daylight

In October, the average length of the day is 11h and 59min.
On the first day of the month, sunrise is at 05:57 and sunset at 18:01. On the last day of October, sunrise is at 05:56 and sunset at 17:50 +0530.

Sunshine

In October, the average sunshine is 7.9h.

UV index

The months with the highest UV index are January through April, July, September through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.
Note: During October, 7 as the daily maximum UV index converts into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Warning! The reflection of sand and water increases the UV dose.