Contents
- 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 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
Weather in December
Temperature
Monte Rosa's shift into December is marked by a subtle change to a still warm 27.5°C (81.5°F) from November's 27.1°C (80.8°F) in temperature. The temperature in Monte Rosa, São Tomé and Príncipe, during December experiences a small drop from daytime peaks, recording an average of 26.6°C (79.9°F) at night.Heat index
December's heat index is computed to be a tropical 31°C (87.8°F). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.One should consider that heat index numbers are for shaded settings and light wind. 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 'apparent temperature' or 'real feel', quantifies the warmth felt when relative humidity is considered. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Humidity
In December, the average relative humidity is 79%.Rainfall
In Monte Rosa, in December, during 28.6 rainfall days, 159mm (6.26") of precipitation is typically accumulated. In Monte Rosa, during the entire year, the rain falls for 241.7 days and collects up to 1287mm (50.67") of precipitation.Daylight
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 Rosa, sunrise is at 05:33 and sunset at 17:40 GMT.
Sunshine
In Monte Rosa, the average sunshine in December is 8.2h.UV index
The months with the highest UV index in Monte Rosa are January through May, October through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, a regular UV index of 7 translates into these guidelines:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Frequently asked questions
What is the usual temperature for Monte Rosa in December?
What is the average humidity in December in Monte Rosa?
How much does it rain in Monte Rosa in December?
What is the average length of the day in December in Monte Rosa?
When are sunrise and sunset in December in Monte Rosa?
How many hours of sunshine does Monte Rosa have in December?
What are the months with the highest UV index in Monte Rosa?
How high is the UV index in December in Monte Rosa?
Average temperature in December
Monte Rosa, 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 Rosa, 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 Rosa, 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 Rosa, 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 Rosa, 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 Rosa, 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 Rosa, 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 Rosa, 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 Rosa, 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 Rosa, 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 Rosa, 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 Rosa, São Tomé and Príncipe
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