October weather forecast
Nampamunuwa, Sri Lanka

October, like September, in Nampamunuwa, Sri Lanka, is another warm autumn month, with temperature in the range of an average low of 25.4°C (77.7°F) and an average high of 29.7°C (85.5°F).

Temperature

The dawn of October sees an average high-temperature of a still moderately hot 29.7°C (85.5°F), subtly contrasting with September's 28.8°C (83.8°F). In October, Nampamunuwa temperatures settle at a low of 25.4°C (77.7°F) during the nights, reflecting a minor change from daytime highs.

Heat index

In October, the heat index is calculated to be a torrid 37°C (98.6°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
Understanding the heat index involves considering values for shaded locales with light wind. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In Nampamunuwa, the average relative humidity in October is 80%.

Rainfall

In Nampamunuwa, in October, it is raining for 24.3 days, with typically 195mm (7.68") of accumulated precipitation. Throughout the year, there are 272.8 rainfall days, and 2100mm (82.68") of precipitation is accumulated.

Daylight

The average length of the day in October in Nampamunuwa, Sri Lanka, is 11h and 58min.
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 05:57 and sunset at 17:50 +0530.

Sunshine

In Nampamunuwa, the average sunshine in October is 7.8h.

UV index

The months with the lowest UV index in Nampamunuwa are May, June, August and October, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In October, the average maximum UV index of 6 translates into the following recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Always opt for UVA and UVB-resistant sunglasses on radiant days.