December weather forecastBeau Vallon, Seychelles
December
Weather in December
December in Beau Vallon, Seychelles, sees a rise in both temperatures and rainfall, ushering in the hot and wet season characteristic of the region's climate. The noticeable increase in wind speed compared to November brings a refreshing relief from the heat. Even though the sea maintains its average temperature, sea activities remain popular due to consistent longer daylight hours. Despite the higher rainfall, December’s blend of warm temperatures and steady breezes invites the holiday-spirited tourists.Temperature
December's onset sees an average high-temperature of a still moderately hot 28°C (82.4°F), exhibiting a slight fluctuation from the previous month. The temperature during December nights demonstrates a small drop from the daytime highs, settling to an average of 27.2°C (81°F).Heat index
In December, the heat index is computed to be a hot 32°C (89.6°F). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
The average relative humidity in December is 76%.Rainfall
In December, the rain falls for 21.8 days. Throughout December, 166mm (6.54") of precipitation is accumulated. Throughout the year, there are 241.9 rainfall days, and 1432mm (56.38") of precipitation is accumulated.Sea temperature
In Beau Vallon, the average seawater temperature in December is 28°C (82.4°F).Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are regarded as very warm, ensuring all water activities are pleasurable for extended periods without feeling uneasy.
Daylight
With an average of 12h and 24min of daylight, December has the longest days of the year in Beau Vallon, Seychelles.On the first day of the month, sunrise is at 05:56 and sunset at 18:18. On the last day of December, in Beau Vallon, sunrise is at 06:09 and sunset at 18:33 +04.
Sunshine
In December, the average sunshine in Beau Vallon is 8.4h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Beau Vallon. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: A maximum daily UV index of 7 during December morphs into the following directions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Caution! The mirror effect of sand and water ups the UV radiation strength.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Beau Vallon, Seychelles
- Average high temperature in December: 28°C
The warmest month (with the highest average high temperature) is April (29.3°C).
The month with the lowest average high temperature is August (26.4°C).
- Average low temperature in December: 27.2°C
The month with the highest average low temperature is April (28.1°C).
The coldest months (with the lowest average low temperature) are July and August (25.7°C).
Average pressure in December
Beau Vallon, Seychelles
- Average pressure in December: 1010.6mbar
The month with the highest atmospheric pressure is August (1012.4mbar).
The month with the lowest atmospheric pressure is April (1010.4mbar).
Average wind speed in December
Beau Vallon, Seychelles
- Average wind speed in December: 17.1km/h
The windiest month (with the highest average wind speed) is August (28.1km/h).
The calmest month (with the lowest average wind speed) is April (12.8km/h).
Average humidity in December
Beau Vallon, Seychelles
- Average humidity in December: 76%
The months with the highest relative humidity are July, August and September (80%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Beau Vallon, Seychelles
- Average rainfall in December: 166mm
The wettest month (with the highest rainfall) is January (220mm).
The driest month (with the least rainfall) is August (50mm).
Average rainfall days in December
Beau Vallon, Seychelles
- Average rainfall days in December: 21.8 days
The month with the highest number of rainy days is January (23.2 days).
The month with the least rainy days is November (17.3 days).
Average sea temperature in December
Beau Vallon, Seychelles
- Average sea temperature in December: 28°C
The best month for swimming (with the highest average sea temperature) is April (30°C).
The coldest months (with the lowest average sea temperature) are July and August (26°C).
Average daylight in December /
Average sunshine in December
Beau Vallon, Seychelles
- Average daylight in December: 12h and 24min
The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in December: 8h and 24min
The month with the most sunshine is November (Average sunshine: 10h and 6min).
The month with the least sunshine is September (Average sunshine: 7h and 0min).
Average sunshine days in December
Beau Vallon, Seychelles
- Average sunshine days in December: 7.6 days
The month with the most sunshine days is November (10.9 days).
The month with the least sunshine days is June (3 days).
Average UV index in December
Beau Vallon, Seychelles
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in December
Beau Vallon, Seychelles
- Average cloud cover in December: 44
The month with the most cloud cover is September (Cloud cover 51).
The month with the least cloud cover is November (Cloud cover 41).
Average visibility in December
Beau Vallon, Seychelles
- Average visibility in December: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
