December weather forecastStanley, Mauritius

December

Weather in December

The first month of the summer, December, is also a moderately hot month in Stanley, Mauritius, with an average temperature ranging between min 24.7°C (76.5°F) and max 27.6°C (81.7°F).

Temperature

The onset of December manifests an average high-temperature of a still warm 27.6°C (81.7°F), demonstrating a minor variation from the preceding month. A mean low-temperature of 24.7°C (76.5°F) is anticipated during the month of December, a slight step down from the daytime high.

Heat index

December's mean heat index is estimated at a tropical 30°C (86°F). Exhaustion becomes probable with enduring exposure and activity, potentially causing heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', blends air temperature and moisture content to represent the felt temperature to humans. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index 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 75%.

Rainfall

In Stanley, in December, during 18.3 rainfall days, 72mm (2.83") of precipitation is typically accumulated. Throughout the year, there are 207.3 rainfall days, and 645mm (25.39") of precipitation is accumulated.

Daylight

The month with the longest days in Stanley is December, with an average of 13h and 18min of daylight.
On the first day of the month, sunrise is at 05:21 and sunset at 18:37. On the last day of December, in Stanley, Mauritius, sunrise is at 05:33 and sunset at 18:53 +04.

Sunshine

In Stanley, the average sunshine in December is 10.1h.

UV index

January through March and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 7 in December translates into these instructions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.

Frequently asked questions

In Stanley, 27.6°C (81.7°F) is the average high-temperature and 24.7°C (76.5°F) is the average low-temperature during December. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in December is estimated at 30°C (86°F).

The average relative humidity in December is 75%.

In Stanley, Mauritius, in December, during 18.3 rainfall days, 72mm (2.83") of precipitation is typically accumulated.

The month with the longest days is December, with an average of 13h and 18min of daylight.

The average day length in December in Stanley, Mauritius, is 13h and 20min.

On the first day of December in Stanley, sunrise is at 05:21 and sunset at 18:37. On the last day of the month, sunrise is at 05:33 and sunset at 18:53 +04.

In Stanley, the average sunshine duration in December is 10.1h.

The months with the highest UV index in Stanley are January through March and December, with an average maximum UV index of 7.

In December, the average daily maximum UV index in Stanley is 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Stanley, Mauritius

  • Average high temperature in December: 27.6°C

The warmest month (with the highest average high temperature) is February (28.5°C).
The months with the lowest average high temperature are July and August (23.3°C).

  • Average low temperature in December: 24.7°C

The month with the highest average low temperature is February (25.6°C).
The coldest month (with the lowest average low temperature) is August (20.7°C).

Average pressure in December
Stanley, Mauritius

  • Average pressure in December: 1013.3mbar

The month with the highest atmospheric pressure is August (1021mbar).
The month with the lowest atmospheric pressure is February (1011.1mbar).

Average wind speed in December
Stanley, Mauritius

  • Average wind speed in December: 16.8km/h

The windiest month (with the highest average wind speed) is August (22.8km/h).
The calmest month (with the lowest average wind speed) is November (16.4km/h).

Average humidity in December
Stanley, Mauritius

  • Average humidity in December: 75%

The months with the highest relative humidity are January, February and March (78%).
The months with the lowest relative humidity are August and September (73%).

Average rainfall in December
Stanley, Mauritius

  • Average rainfall in December: 72mm

The wettest month (with the highest rainfall) is January (129mm).
The driest month (with the least rainfall) is September (12mm).

Average rainfall days in December
Stanley, Mauritius

  • Average rainfall days in December: 18.3 days

The month with the highest number of rainy days is March (23.6 days).
The month with the least rainy days is October (12.2 days).

Average daylight in December /
Average sunshine in December
Stanley, Mauritius

  • Average daylight in December: 13h and 18min

The month with the longest days is December (Average daylight: 13h and 18min).
The month with the shortest days is June (Average daylight: 10h and 54min).

  • Average sunshine in December: 10h and 6min

The month with the most sunshine is October (Average sunshine: 10h and 12min).
The month with the least sunshine is July (Average sunshine: 6h and 12min).

Average sunshine days in December
Stanley, Mauritius

  • Average sunshine days in December: 7.8 days

The month with the most sunshine days is October (11.8 days).
The month with the least sunshine days is February (3.2 days).

Average UV index in December
Stanley, Mauritius

  • Average UV index in December: 7

The months with the highest UV index are January, February, March and December (UV index 7).
The months with the lowest UV index are April, May, June, July, August, September, October and November (UV index 6).

Average cloud cover in December
Stanley, Mauritius

  • Average cloud cover in December: 41

The months with the most cloud cover are March and April (Cloud cover 45).
The month with the least cloud cover is September (Cloud cover 37).

Average visibility in December
Stanley, Mauritius

  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).