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
The commencement of December notes an average high-temperature of a still warm 27.5°C (81.5°F), exhibiting little difference from the previous month. The December average low temperature in Santa Clotilde, marginally lower than the daytime high, records at a still moderately hot 26.6°C (79.9°F).Heat index
During December, the heat index is computed to be a tropical 31°C (87.8°F). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
In December, the average relative humidity is 79%.Rainfall
In Santa Clotilde, in December, during 28.6 rainfall days, 159mm (6.26") of precipitation is typically accumulated. Throughout the year, there are 241.7 rainfall days, and 1287mm (50.67") of precipitation is accumulated.Daylight
The months with the shortest days are January, November and December, with an average of 12h and 6min of daylight.On the first day of the month, sunrise is at 05:20 and sunset at 17:26. On the last day of December, in Santa Clotilde, sunrise is at 05:34 and sunset at 17:40 GMT.
Sunshine
In Santa Clotilde, São Tomé and Príncipe, the average sunshine in December 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 estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: In December, an average UV index of 7 transforms into the following instructions:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Santa Clotilde in December?
What is the average humidity in December in Santa Clotilde?
How many days does it rain in December in Santa Clotilde?
What is the month with the shortest days in Santa Clotilde?
What is the average length of the day in December in Santa Clotilde?
When are sunrise and sunset in December in Santa Clotilde?
How long on average sun shines in December in Santa Clotilde?
When is the highest UV index in Santa Clotilde?
What is the UV index reading in December in Santa Clotilde?
Average temperature in December
Santa Clotilde, 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
Santa Clotilde, 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
Santa Clotilde, 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
Santa Clotilde, 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
Santa Clotilde, 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
Santa Clotilde, 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
Santa Clotilde, 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 months with the shortest days are January, November and December (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
Santa Clotilde, 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
Santa Clotilde, 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
Santa Clotilde, 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
Santa Clotilde, 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).
Santa Clotilde, São Tomé and Príncipe
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