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 advent of December reveals an average high-temperature of an enjoyable 18.7°C (65.7°F), showing minimal difference from the prior month. In Santo António, December's low temperatures hover around 17.5°C (63.5°F), reflecting a minor decrease from the daytime highs.Humidity
In December, the average relative humidity in Santo António is 74%.Rainfall
In Santo António, in December, it is raining for 13.4 days, with typically 27mm (1.06") of accumulated precipitation. Throughout the year, there are 116.4 rainfall days, and 232mm (9.13") of precipitation is accumulated.Daylight
December has the shortest days of the year, with an average of 10h and 0min of daylight.On the first day of the month, sunrise is at 07:52 and sunset at 18:01. On the last day of December, sunrise is at 08:09 and sunset at 18:12 WET.
Sunshine
The months with the least sunshine are January and December, with an average of 7.6h of sunshine.UV index
The months with the lowest UV index are January through June, November and December, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: A maximum daily UV index of 5 during December morphs into the following directions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in Santo António?
What is the average humidity in December in Santo António?
How many days does it rain in December in Santo António?
What is the month with the shortest days in Santo António?
How many hours of daylight does Santo António have in December?
When is the sunrise / sunset in December in Santo António?
What is the month with the least sunshine in Santo António?
How many hours of sunshine does Santo António have in December?
What is the month with the lowest UV index in Santo António?
What is the UV index intensity in December in Santo António?
Average temperature in December
Santo António, Portugal
- Average high temperature in December: 18.7°C
The warmest month (with the highest average high temperature) is August (23°C).
The months with the lowest average high temperature are February and March (16.9°C).
- Average low temperature in December: 17.5°C
The month with the highest average low temperature is September (21.7°C).
The coldest month (with the lowest average low temperature) is March (15.1°C).
Average pressure in December
Santo António, Portugal
- Average pressure in December: 1022.4mbar
The month with the highest atmospheric pressure is January (1024.1mbar).
The month with the lowest atmospheric pressure is October (1017mbar).
Average wind speed in December
Santo António, Portugal
- Average wind speed in December: 22.3km/h
The windiest month (with the highest average wind speed) is February (23km/h).
The calmest month (with the lowest average wind speed) is September (17.7km/h).
Average humidity in December
Santo António, Portugal
- Average humidity in December: 74%
The months with the highest relative humidity are June and August (80%).
The month with the lowest relative humidity is February (73%).
Average rainfall in December
Santo António, Portugal
- Average rainfall in December: 27mm
The wettest month (with the highest rainfall) is October (44mm).
The driest month (with the least rainfall) is August (3mm).
Average rainfall days in December
Santo António, Portugal
- Average rainfall days in December: 13.4 days
The month with the highest number of rainy days is November (16 days).
The month with the least rainy days is August (3.9 days).
Average daylight in December /
Average sunshine in December
Santo António, Portugal
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 7h and 4min
The month with the most sunshine is June (Average sunshine: 9h and 12min).
The months with the least sunshine are January and December (Average sunshine: 7h and 36min).
Average sunshine days in December
Santo António, Portugal
- Average sunshine days in December: 12 days
The month with the most sunshine days is August (20.9 days).
The month with the least sunshine days is November (8.4 days).
Average UV index in December
Santo António, Portugal
- Average UV index in December: 5
The months with the highest UV index are July, August, September and October (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, November and December (UV index 5).
Average cloud cover in December
Santo António, Portugal
- Average cloud cover in December: 39
The month with the most cloud cover is November (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in December
Santo António, Portugal
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Santo António, Portugal
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