December Weather forecast - Summer forecast

Weather in December
Frequently asked questions
Average temperature in December
Average pressure in December
Average wind speed in December
Average humidity in December
Average rainfall in December
Average rainfall days in December
Average sea temperature in December
Average daylight in December
Average sunshine in December
Average sunshine days in December
Average UV index in December
Average cloud cover in December
Average visibility in December

A view from mount Copolia, of the scenic islands of Victoria and Eden, in Mahé, Seychelles, surrounded by clear water

Weather in December

December, the first month of the summer in Mahé, is still a warm month, with an average temperature ranging between max 28°C (82.4°F) and min 27.2°C (81°F).

Temperature

In December, the average high-temperature is essentially the same as in November - a still warm 28°C (82.4°F). In Mahé, the average low-temperature is 27.2°C (81°F).

Heat index

The average heat index in December is calculated to be a tropical 32°C (89.6°F). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'feels like', or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like activity, metabolic differences, wind, and clothing affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in December in Mahé is 76%.

Rainfall

In Mahé, during December, the rain falls for 21.8 days and regularly aggregates up to 166mm (6.54") of precipitation. Throughout the year, in Mahé, there are 241.9 rainfall days, and 1432mm (56.38") of precipitation is accumulated.

Sea temperature

In Mahé, Seychelles, the average seawater temperature in December is 28.2°C (82.8°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

December has the longest days of the year in Mahé, with an average of 12h and 23min of daylight.
On the first day of the month, sunrise is at 05:55 and sunset at 18:18. On the last day of December, in Mahé, sunrise is at 06:09 and sunset at 18:32 +04.

Sunshine

In Mahé, the average sunshine in December is 8.4h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Mahé, Seychelles, are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In December, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

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FAQ

What is the temperature in December in Mahé?

In Mahé, in December, the average high-temperature is 28°C (82.4°F), and the average low-temperature is 27.2°C (81°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in December is calculated to be 32°C (89.6°F).

What is the average humidity in December in Mahé?

In Mahé, the average relative humidity in December is 76%.

How many days does it rain in December in Mahé?

In December, in Mahé, the rain falls for 21.8 days. Throughout December, 166mm (6.54") of precipitation is accumulated.

How warm is the water in December in Mahé?

In Mahé, Seychelles, the average seawater temperature in December is 28.2°C (82.8°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

When are the longest days in Mahé?

The month with the longest days is December, with an average of 12h and 23min of daylight.

How many hours of daylight does Mahé have in December?

The average day length in December in Mahé is 12h and 23min.

When is the sunrise / sunset in December in Mahé?

In December, on the first day of the month, sunrise is at 05:55 and sunset at 18:18. On the last day of the month, in Mahé, Seychelles, sunrise is at 06:09 and sunset at 18:32 +04.

How many hours of sunshine does Mahé have in December?

In Mahé, Seychelles, the average sunshine duration in December is 8.4h.

What is the month with the highest UV index in Mahé?

January through December, with an average maximum UV index of 7, are months with the highest UV index.

What is the month with the lowest UV index in Mahé?

The months with the lowest UV index are January through December, with an average maximum UV index of 7.

What is the UV index reading in December in Mahé?

In December, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

27.9°C 82.2°F

28°C 82.4°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

15.2km/h 9.4mph

17.7km/h 11mph

19.1km/h 11.9mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

17.3

21.8

23.2

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

10.9

7.6

4.5

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Mahé, 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).

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Average pressure in December
Mahé, 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).

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Average wind speed in December
Mahé, 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).

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Average humidity in December
Mahé, 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%).

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Average rainfall in December
Mahé, 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).

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Average rainfall days in December
Mahé, 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).

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Average sea temperature in December
Mahé, Seychelles

Average sea temperature in December: 28.2°C

The best month for swimming (with the highest average sea temperature) is April (29.8°C).
The coldest month (with the lowest average sea temperature) is August (26.2°C).

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Average daylight in December /
Average sunshine in December
Mahé, Seychelles

Average daylight in December: 12h and 23min

The month with the longest days is December (Average daylight: 12h and 23min).
The month with the shortest days is June (Average daylight: 11h and 52min).

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).

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Average sunshine days in December
Mahé, 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).

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Average UV index in December
Mahé, 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).

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Average cloud cover in December
Mahé, 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).

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Average visibility in December
Mahé, 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).

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December weather forecast
Mahé, Seychelles

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