October weather forecast
Mirihana, Sri Lanka

October is a tropical autumn month in Mirihana, Sri Lanka, with an average temperature ranging between min 25°C (77°F) and max 30°C (86°F).

Temperature

With October's arrival, Mirihana's weather records an average high-temperature of a hot 30°C (86°F), marking little difference from September's 29.1°C (84.4°F). The temperature in Mirihana during October sees a subtle transition from day to night, averaging a low of 25°C (77°F).

Heat index

The average heat index in October is computed to be a fiery hot 38°C (100.4°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. 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 hold particular importance for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In October, the average relative humidity is 80%.

Rainfall

In Mirihana, Sri Lanka, during October, the rain falls for 27 days and regularly aggregates up to 237mm (9.33") of precipitation. In Mirihana, during the entire year, the rain falls for 289.4 days and collects up to 2262mm (89.06") of precipitation.

Daylight

The average length of the day in October in Mirihana, 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 Mirihana, sunrise is at 05:57 and sunset at 17:50 +0530.

Sunshine

In Mirihana, the average sunshine in October is 7.7h.

UV index

The months with the lowest UV index are May, June, August and October, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.
Note: An average UV index of 6 in October transforms into this advice:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.