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

Upon the onset of October, Kalutara witnesses an average high-temperature of a still moderately hot 29.6°C (85.3°F), showing a close resemblance to the prior month. The temperature in Kalutara during October nights demonstrates a small drop from the daytime highs, settling to an average of 25.5°C (77.9°F).

Heat index

Throughout October, the heat index is estimated at a very hot 36°C (96.8°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', melds the effects of warmth and moisture to generate a feeling of heat. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

In October, the average relative humidity is 80%.

Rainfall

In Kalutara, in October, it is raining for 25.2 days, with typically 192mm (7.56") of accumulated precipitation. Throughout the year, there are 273.8 rainfall days, and 2059mm (81.06") of precipitation is accumulated.

Sea temperature

In Kalutara, in October, the average water temperature is 28.6°C (83.5°F).
Note: Surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as excellent and extremely agreeable for enduring enjoyment in water activities.

Daylight

In Kalutara, the average length of the day in October 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 Kalutara, the average sunshine in October 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 estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 7 in October transforms into the following instructions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Watch out! Sand and water enhance the UV exposure you receive.