October weather forecast
Chilaw, Sri Lanka

October, like September, in Chilaw, Sri Lanka, is a moderately hot autumn month, with an average temperature varying between 29.9°C (85.8°F) and 25.1°C (77.2°F).

Temperature

October is marked by an average high-temperature of a still warm 29.9°C (85.8°F), almost identical to the preceding month. Chilaw marks an average drop to a still warm 25.1°C (77.2°F) during nighttime in October, following the high of the day.

Heat index

Throughout October, the heat index is appraised at a very hot 37°C (98.6°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

The average relative humidity in October in Chilaw, Sri Lanka, is 79%.

Rainfall

In Chilaw, in October, it is raining for 25.9 days, with typically 224mm (8.82") of accumulated precipitation. In Chilaw, during the entire year, the rain falls for 265.4 days and collects up to 1744mm (68.66") of precipitation.

Sea temperature

In Chilaw, the average seawater temperature in October is 28.5°C (83.3°F).
Note: Water activities in surface temperatures between 25°C (77°F) and 29°C (84.2°F) are seen as exceptional and extremely agreeable for lengthened time spans.

Daylight

In October, the average length of the day in Chilaw, Sri Lanka, is 11h and 58min.
On the first day of the month, sunrise is at 05:58 and sunset at 18:01. On the last day of October, in Chilaw, sunrise is at 05:58 and sunset at 17:50 +0530.

Sunshine

In October, the average sunshine is 7.8h.

UV index

May, June, August and October, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: An average maximum UV index of 6 in October leads to these recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Beware! Reflecting off water and sand, UV rays are much stronger.