November weather forecast
Ambalanduwa, Sri Lanka

The last month of the autumn, November, is also a moderately hot month in Ambalanduwa, Sri Lanka, with temperature in the range of an average low of 24.8°C (76.6°F) and an average high of 29.8°C (85.6°F).

Temperature

The onset of November brings with it an average high-temperature of a still moderately hot 29.8°C (85.6°F), showing a negligible variation from the month before. Ambalanduwa experiences a minimal drop from daytime high temperatures, recording an average low-temperature of 24.8°C (76.6°F) throughout November.

Heat index

November's mean heat index is appraised at a sweltering 37°C (98.6°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In November, the average relative humidity in Ambalanduwa is 80%.

Rainfall

In Ambalanduwa, during November, the rain falls for 23.5 days and regularly aggregates up to 133mm (5.24") of precipitation. In Ambalanduwa, during the entire year, the rain falls for 273.8 days and collects up to 2059mm (81.06") of precipitation.

Daylight

The average length of the day in November in Ambalanduwa is 11h and 49min.
On the first day of November in Ambalanduwa, sunrise is at 05:57 and sunset at 17:50. On the last day of the month, sunrise is at 06:06 and sunset at 17:51 +0530.

Sunshine

November has the least sunshine of the year, with an average of 6.8h of sunshine.

UV index

January through April, July, September through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 7 in November transforms into the following instructions:
Fend off overexposure. Sun protection is vital. 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. Always opt for UVA and UVB-resistant sunglasses on radiant days.