Weather in December
Temperature
As November transitions into December, Santo Tomas sees a gentle drop in the average high-temperature, transitioning from a comfortable 18°C (64.4°F) to a mild 15°C (59°F). Santo Tomas observes an average nighttime temperature of 8°C (46.4°F) during December.Rainfall
In Santo Tomas, during December, the rain falls for 16 days and regularly aggregates up to 81mm (3.19") of precipitation. Throughout the year, there are 127 rainfall days, and 641mm (25.24") of precipitation is accumulated.Sea temperature
In Santo Tomas, in December, the average water temperature is 16°C (60.8°F).Note: In 16°C (60.8°F), swimming is not an enjoyable activity for most. The challenge of managing one's breathing increases as the temperature goes under 21°C (69.8°F).
Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 07:46 and sunset at 17:19. On the last day of December, sunrise is at 08:05 and sunset at 17:28 CET.
Sunshine
December has the least sunshine of the year, with an average of 4h of sunshine.UV index
The months with the lowest UV index in Santo Tomas are January, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Frequently asked questions
What is the average December temperature in Santo Tomas?
How much does it rain in Santo Tomas in December?
How cold is the water in December in Santo Tomas?
What is the month with the shortest days in Santo Tomas?
How many hours of daylight does Santo Tomas have in December?
When is the sunrise / sunset in December in Santo Tomas?
What is the month with the least sunshine in Santo Tomas?
How long on average sun shines in December in Santo Tomas?
When is the lowest UV index in Santo Tomas?
How high is the UV index in December in Santo Tomas?
Average temperature in December
Santo Tomas, Spain
- Average high temperature in December: 15°C
The warmest months (with the highest average high temperature) are July and August (28°C).
The months with the lowest average high temperature are January and February (14°C).
- Average low temperature in December: 8°C
The month with the highest average low temperature is August (20°C).
The coldest months (with the lowest average low temperature) are January, February and March (7°C).
Average rainfall in December
Santo Tomas, Spain
- Average rainfall in December: 81mm
The wettest month (with the highest rainfall) is October (100mm).
The driest month (with the least rainfall) is July (7mm).
Average rainfall days in December
Santo Tomas, Spain
- Average rainfall days in December: 16 days
The month with the highest number of rainy days is December (16 days).
The month with the least rainy days is July (3 days).
Average sea temperature in December
Santo Tomas, Spain
- Average sea temperature in December: 16°C
The best month for swimming (with the highest average sea temperature) is August (25°C).
The coldest months (with the lowest average sea temperature) are February and March (14°C).
Average daylight in December /
Average sunshine in December
Santo Tomas, Spain
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h
The month with the most sunshine is July (Average sunshine: 11h).
The month with the least sunshine is December (Average sunshine: 4h).
Average UV index in December
Santo Tomas, Spain
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 9).
The months with the lowest UV index are January, November and December (UV index 2).
Santo Tomas, Spain
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