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
Santarem's weather in December, with an average high-temperature of a still refreshing 15.1°C (59.2°F), subtly shifts from November's 17.2°C (63°F). In December, Santarem encounters an average low-temperature of 7.5°C (45.5°F) during the night.Humidity
The average relative humidity in December is 78%.Rainfall
In Santarem, Portugal, in December, during 10.1 rainfall days, 42mm (1.65") of precipitation is typically accumulated. Throughout the year, there are 108.1 rainfall days, and 337mm (13.27") of precipitation is accumulated.Daylight
The month with the shortest days in Santarem, Portugal, is December, with an average of 9h and 30min of daylight.On the first day of December in Santarem, Portugal, sunrise is at 07:35 and sunset at 17:12. On the last day of the month, sunrise is at 07:54 and sunset at 17:21 WET.
Sunshine
The average sunshine in December in Santarem, Portugal, is 5.6h.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Santarem, Portugal. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high daily UV index of 3 during December translates into the following directions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Frequently asked questions
What are December temperatures in Santarem?
What is the average humidity in December in Santarem?
How much does it rain in Santarem in December?
What is the month with the shortest days in Santarem?
How many hours of daylight does Santarem have in December?
When is the sunrise / sunset in December in Santarem?
How many hours of sunshine does Santarem have in December?
What is the month with the lowest UV index in Santarem?
What is the UV index intensity in December in Santarem?
Average temperature in December
Santarem, Portugal
- Average high temperature in December: 15.1°C
The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (14°C).
- Average low temperature in December: 7.5°C
The month with the highest average low temperature is July (15.8°C).
The coldest months (with the lowest average low temperature) are January and February (6.8°C).
Average pressure in December
Santarem, Portugal
- Average pressure in December: 1022.6mbar
The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in December
Santarem, Portugal
- Average wind speed in December: 11.2km/h
The windiest month (with the highest average wind speed) is July (13.2km/h).
The calmest months (with the lowest average wind speed) are September and October (10.6km/h).
Average humidity in December
Santarem, Portugal
- Average humidity in December: 78%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (62%).
Average rainfall in December
Santarem, Portugal
- Average rainfall in December: 42mm
The wettest month (with the highest rainfall) is November (53mm).
The driest months (with the least rainfall) are July and August (3mm).
Average rainfall days in December
Santarem, Portugal
- Average rainfall days in December: 10.1 days
The month with the highest number of rainy days is November (13.9 days).
The month with the least rainy days is August (2.4 days).
Average daylight in December /
Average sunshine in December
Santarem, Portugal
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in December
Santarem, Portugal
- Average sunshine days in December: 19.3 days
The month with the most sunshine days is July (27.3 days).
The months with the least sunshine days are April and November (14.6 days).
Average UV index in December
Santarem, Portugal
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Santarem, Portugal
- Average cloud cover in December: 37
The month with the most cloud cover is January (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in December
Santarem, Portugal
- Average visibility in December: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (9km).
Santarem, Portugal
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