December weather forecast
Monte Carmo, São Tomé and Príncipe

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Weather in December

Monte Carmo in December ushers in moderately high temperatures providing a warm end to the year. Even with high temperatures, the month welcomes holidaymakers with its lush landscapes and balmy evenings. The festive season, coupled with Monte Carmo's tropical charm, create an unforgettable end-of-year experience. Among the notable weather patterns, December sees a fall in rainfall to 159mm (6.26"), signalling the commencement of the dry season. This weather transition makes outdoor celebratory events and parties particularly enjoyable during this festive month.

Temperature

December's weather in Monte Carmo, São Tomé and Príncipe, displays an average high-temperature of a still moderately hot 27.5°C (81.5°F), slightly varied from November's 27.1°C (80.8°F). During December's nights, Monte Carmo notes a minor temperature decline, reaching an average of 26.6°C (79.9°F).

Heat index

In December, the heat index is appraised at a hot 31°C (87.8°F). Continuous activity in exposure could lead to a feeling of fatigue and heat cramps.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.

Humidity

In December, the average relative humidity is 79%.

Rainfall

In Monte Carmo, São Tomé and Príncipe, during December, the rain falls for 28.6 days and regularly aggregates up to 159mm (6.26") of precipitation. Throughout the year, there are 241.7 rainfall days, and 1287mm (50.67") of precipitation is accumulated.

Daylight

In Monte Carmo, São Tomé and Príncipe, the average length of the day in December is 12h and 7min.
On the first day of the month, sunrise is at 05:19 and sunset at 17:26. On the last day of December, in Monte Carmo, sunrise is at 05:33 and sunset at 17:40 GMT.

Sunshine

The average sunshine in December in Monte Carmo is 8.2h.

UV index

January through May, October through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 7 in December transforms into the following instructions:
Prevent overexposure. Protection from the sun's harmful effects is needed. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Enhance your sun protection with tightly woven, yet airy clothing.

Frequently asked questions

What is the temperature in December in Monte Carmo?

Monte Carmo in December has an average high-temperature of 27.5°C (81.5°F) and an average low-temperature of 26.6°C (79.9°F). In December, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is appraised at 31°C (87.8°F).

What is the average humidity in December in Monte Carmo?

In December, the average relative humidity in Monte Carmo is 79%.

How many days does it rain in December in Monte Carmo?

In December, in Monte Carmo, the rain falls for 28.6 days. Throughout December, 159mm (6.26") of precipitation is accumulated.

How many hours of daylight does Monte Carmo have in December?

In Monte Carmo, the average day length in December is 12h and 7min.

When is the sunrise / sunset in December in Monte Carmo?

On the first day of December in Monte Carmo, São Tomé and Príncipe, sunrise is at 05:19 and sunset at 17:26. On the last day of the month, sunrise is at 05:33 and sunset at 17:40 GMT.

How many hours of sunshine does Monte Carmo have in December?

In Monte Carmo, São Tomé and Príncipe, the average sunshine duration in December is 8.2h.

What are the months with the highest UV index in Monte Carmo?

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

What is the UV index reading in December in Monte Carmo?

In Monte Carmo, the average daily maximum UV index in December is 7. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to Sun's UV rays.

Average temperature in December
Monte Carmo, São Tomé and Príncipe

Average temperature in December - Monte Carmo, São Tomé and Príncipe
  • Average high temperature in December: 27.5°C

The warmest month (with the highest average high temperature) is March (28.8°C).
The month with the lowest average high temperature is July (24.5°C).

  • Average low temperature in December: 26.6°C

The month with the highest average low temperature is March (27.5°C).
The coldest month (with the lowest average low temperature) is July (23°C).

Average pressure in December
Monte Carmo, São Tomé and Príncipe

Average pressure in December - Monte Carmo, São Tomé and Príncipe
  • Average pressure in December: 1010.6mbar

The month with the highest atmospheric pressure is July (1014.3mbar).
The month with the lowest atmospheric pressure is February (1009.8mbar).

Average wind speed in December
Monte Carmo, São Tomé and Príncipe

Average wind speed in December - Monte Carmo, São Tomé and Príncipe
  • Average wind speed in December: 10.8km/h

The windiest month (with the highest average wind speed) is July (17.7km/h).
The calmest month (with the lowest average wind speed) is December (10.8km/h).

Average humidity in December
Monte Carmo, São Tomé and Príncipe

Average humidity in December - Monte Carmo, São Tomé and Príncipe
  • Average humidity in December: 79%

The months with the highest relative humidity are August, September and October (83%).
The month with the lowest relative humidity is March (76%).

Average rainfall in December
Monte Carmo, São Tomé and Príncipe

Average rainfall in December - Monte Carmo, São Tomé and Príncipe
  • Average rainfall in December: 159mm

The wettest month (with the highest rainfall) is November (224mm).
The driest month (with the least rainfall) is July (9mm).

Average rainfall days in December
Monte Carmo, São Tomé and Príncipe

Average rainfall days in December - Monte Carmo, São Tomé and Príncipe
  • Average rainfall days in December: 28.6 days

The month with the highest number of rainy days is December (28.6 days).
The month with the least rainy days is June (7.3 days).

Average daylight in December /
Average sunshine in December
Monte Carmo, São Tomé and Príncipe

Average daylight in December / Average sunshine in December - Monte Carmo, São Tomé and Príncipe
  • Average daylight in December: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 6min).
The month with the shortest days is October (Average daylight: 12h and 6min).

  • Average sunshine in December: 8h and 1min

The month with the most sunshine is February (Average sunshine: 8h and 36min).
The month with the least sunshine is August (Average sunshine: 5h and 0min).

Average sunshine days in December
Monte Carmo, São Tomé and Príncipe

Average sunshine days in December - Monte Carmo, São Tomé and Príncipe
  • Average sunshine days in December: 1.5 days

The month with the most sunshine days is June (16.4 days).
The month with the least sunshine days is December (1.5 days).

Average UV index in December
Monte Carmo, São Tomé and Príncipe

Average UV index in December - Monte Carmo, São Tomé and Príncipe
  • Average UV index in December: 7

The months with the highest UV index are January, February, March, April, May, October, November and December (UV index 7).
The month with the lowest UV index is July (UV index 5).

Average cloud cover in December
Monte Carmo, São Tomé and Príncipe

Average cloud cover in December - Monte Carmo, São Tomé and Príncipe
  • Average cloud cover in December: 41

The month with the most cloud cover is August (Cloud cover 65).
The month with the least cloud cover is February (Cloud cover 37).

Average visibility in December
Monte Carmo, São Tomé and Príncipe

Average visibility in December - Monte Carmo, São Tomé and Príncipe
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September and December (10km).
The months with the lowest visibility are October and November (9km).

Monte Carmo, São Tomé and Príncipe

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