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 sea temperature 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
December
Weather in December
Temperature
December's advent notes a subtle adjustment in average high-temperature to a still comfortable 16.4°C (61.5°F) from November. Nights during December maintain a steady temperature, averaging at a mild 13.4°C (56.1°F).Humidity
In December, the average relative humidity is 74%.Rainfall
In Lagos, in December, it is raining for 7.1 days, with typically 12mm (0.47") of accumulated precipitation. In Lagos, during the entire year, the rain falls for 70.2 days and collects up to 95mm (3.74") of precipitation.Sea temperature
In December, the average sea temperature is 17.4°C (63.3°F).Note: Most people do not take pleasure in swimming in water at 17.4°C (63.3°F). The difficulty of managing breathing increases as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).
Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of December, sunrise is at 07:29 and sunset at 17:17. On the last day of the month, sunrise is at 07:48 and sunset at 17:27 WET.
Sunshine
The average sunshine in December is 6.4h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 4 during December translates into the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. To protect against the Sun's most potent rays, avoid direct exposure around midday. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in December?
What is the average humidity in December?
How much does it rain in December?
What is the sea water temperature in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Lagos have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Lagos, Portugal
- Average high temperature in December: 16.4°C
The warmest month (with the highest average high temperature) is August (24.8°C).
The month with the lowest average high temperature is February (15.1°C).
- Average low temperature in December: 13.4°C
The month with the highest average low temperature is August (19.9°C).
The coldest month (with the lowest average low temperature) is February (11.8°C).
Average pressure in December
Lagos, Portugal
- Average pressure in December: 1022.5mbar
The months with the highest atmospheric pressure are January and December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in December
Lagos, Portugal
- Average wind speed in December: 18.6km/h
The windiest month (with the highest average wind speed) is February (20.3km/h).
The calmest month (with the lowest average wind speed) is September (14.6km/h).
Average humidity in December
Lagos, Portugal
- Average humidity in December: 74%
The month with the highest relative humidity is April (76%).
The month with the lowest relative humidity is August (71%).
Average rainfall in December
Lagos, Portugal
- Average rainfall in December: 12mm
The wettest month (with the highest rainfall) is November (19mm).
The driest months (with the least rainfall) are July and August (1mm).
Average rainfall days in December
Lagos, Portugal
- Average rainfall days in December: 7.1 days
The month with the highest number of rainy days is November (11 days).
The month with the least rainy days is August (1.1 days).
Average sea temperature in December
Lagos, Portugal
- Average sea temperature in December: 17.4°C
The best month for swimming (with the highest average sea temperature) is September (21.2°C).
The coldest month (with the lowest average sea temperature) is March (16°C).
Average daylight in December /
Average sunshine in December
Lagos, Portugal
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 6h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).
Average sunshine days in December
Lagos, Portugal
- Average sunshine days in December: 20.7 days
The month with the most sunshine days is July (29.6 days).
The month with the least sunshine days is November (16.4 days).
Average UV index in December
Lagos, Portugal
- Average UV index in December: 4
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in December
Lagos, Portugal
- Average cloud cover in December: 29
The month with the most cloud cover is January (Cloud cover 33).
The months with the least cloud cover are July and August (Cloud cover 7).
Average visibility in December
Lagos, 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).
