December weather forecast
Beruwala, Sri Lanka

Saying farewell to the year, December in Beruwala invites mild winter. Falling temperature accompanied by a decrease in rainfall to 93mm (3.66") marks this period as the driest. The clear and cool weather manipulates the coastal panorama into a picturesque landscape, encouraging outdoor activities. Overall, the city witnesses a smooth transition into the new year with the return of mild weather conditions as observed in January.

Temperature

The advent of December signifies a minor shift to an average high-temperature of a still warm 29.7°C (85.5°F), aligning closely with November. Beruwala anticipates an average minimum temperature of 24.4°C (75.9°F) in the month of December.

Heat index

December's mean heat index is appraised at a sweltering 36°C (96.8°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. 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. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

The average relative humidity in December is 79%.

Rainfall

In Beruwala, in December, during 16.5 rainfall days, 93mm (3.66") of precipitation is typically accumulated. In Beruwala, during the entire year, the rain falls for 273.8 days and collects up to 2059mm (81.06") of precipitation.

Sea temperature

In Beruwala, in December, the average water temperature is 28.1°C (82.6°F).
Note: Water activities including swimming and diving at temperatures from 25°C (77°F) to 29°C (84.2°F) are deemed very pleasurable and enjoyable for extended periods, devoid of discomfort.

Daylight

The month with the shortest days is December, with an average of 11h and 48min of daylight.
On the first day of December, sunrise is at 06:05 and sunset at 17:52. On the last day of the month, sunrise is at 06:20 and sunset at 18:05 +0530.

Sunshine

The average sunshine in December is 7.1h.

UV index

January through April, July, September through December, with an average maximum UV index of 7, are months with the highest UV index in Beruwala, Sri Lanka. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index, 7 during December, leads to the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Heads up! Sand and water reflection magnifies the UV exposure from the Sun.