December weather forecast
Peliyagoda, Sri Lanka

The first month of the winter, December, is also a moderately hot month in Peliyagoda, Sri Lanka, with an average temperature ranging between min 23.7°C (74.7°F) and max 29.9°C (85.8°F).

Temperature

December experiences an average high-temperature of a moderately hot 29.9°C (85.8°F), barely different from November's 30.1°C (86.2°F). Peliyagoda's temperature drops to an average low of 23.7°C (74.7°F) during the nights of December.

Heat index

For December, the heat index is estimated at a fiery hot 37°C (98.6°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In December, the average relative humidity is 79%.

Rainfall

In December, in Peliyagoda, the rain falls for 21.1 days. Throughout December, 148mm (5.83") of precipitation is accumulated. Throughout the year, there are 289.4 rainfall days, and 2262mm (89.06") of precipitation is accumulated.

Sea temperature

In December, the average sea temperature is 28.1°C (82.6°F).
Note: For engaging in water activities including swimming and diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are perceived as perfect, providing pleasure for extended durations.

Daylight

The month with the shortest days is December, with an average of 11h and 42min of daylight.
On the first day of the month, sunrise is at 06:06 and sunset at 17:51. On the last day of December, sunrise is at 06:21 and sunset at 18:05 +0530.

Sunshine

In Peliyagoda, the average sunshine in December is 6.9h.

UV index

January through April, July, September, November and 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 hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index, 7 during December, leads to the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.