December weather forecastAlmada, Portugal
December
Weather in December
December completes the weather cycle in Almada, marking full-fledged winter conditions with the coldest temperatures, least daylight, and second-highest precipitation of the year. Persistent winds coupled with an average temperature that drops to 15.7°C (60.3°F), give Almada a cool chill, typical of a Mediterranean winter. As rainfall tallies up to 8mm (0.31") over 5.1 days, the city resonates with typical winter vibes, and the winds further enhance the chilly sensation. Despite the decreased hours of sun and sea temperature dipping, December retains its charm with vibrant festive decors and holiday merriment in the air.Temperature
Transitioning from November to December, Almada observes an average high-temperature of a still refreshing 15.7°C (60.3°F), differing subtly from the previous month. Almada maintains a minor drop in temperature during December nights, with averages of 10.9°C (51.6°F).Humidity
In Almada, the average relative humidity in December is 75%.Rainfall
In Almada, in December, it is raining for 5.1 days, with typically 8mm (0.31") of accumulated precipitation. In Almada, during the entire year, the rain falls for 54.2 days and collects up to 61mm (2.4") of precipitation.Sea temperature
In Almada, in December, the average water temperature is 16.6°C (61.9°F).Note: For the majority, swimming in 16.6°C (61.9°F) does not offer a pleasant experience. Below 21°C (69.8°F), the difficulty in controlling breathing escalates.
Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 07:36 and sunset at 17:15. On the last day of the month, sunrise is at 07:54 and sunset at 17:25 WET.
Sunshine
The average sunshine in December is 5.9h.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 estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 4 in December converts into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Almada, Portugal
- Average high temperature in December: 15.7°C
The warmest month (with the highest average high temperature) is August (27.1°C).
The month with the lowest average high temperature is January (14.9°C).
- Average low temperature in December: 10.9°C
The month with the highest average low temperature is July (17.9°C).
The coldest month (with the lowest average low temperature) is February (9.8°C).
Average pressure in December
Almada, 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 (1015.7mbar).
Average wind speed in December
Almada, Portugal
- Average wind speed in December: 15km/h
The windiest month (with the highest average wind speed) is February (16.5km/h).
The calmest month (with the lowest average wind speed) is September (13.1km/h).
Average humidity in December
Almada, Portugal
- Average humidity in December: 75%
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (68%).
Average rainfall in December
Almada, Portugal
- Average rainfall in December: 8mm
The wettest month (with the highest rainfall) is November (15mm).
The driest months (with the least rainfall) are June, July and August (1mm).
Average rainfall days in December
Almada, Portugal
- Average rainfall days in December: 5.1 days
The month with the highest number of rainy days is November (9.3 days).
The month with the least rainy days is August (0.8 days).
Average sea temperature in December
Almada, Portugal
- Average sea temperature in December: 16.6°C
The best month for swimming (with the highest average sea temperature) is September (19.9°C).
The coldest month (with the lowest average sea temperature) is March (15.1°C).
Average daylight in December /
Average sunshine in December
Almada, Portugal
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in December
Almada, Portugal
- Average sunshine days in December: 23.5 days
The month with the most sunshine days is July (29.7 days).
The month with the least sunshine days is November (17.7 days).
Average UV index in December
Almada, Portugal
- Average UV index in December: 4
The months with the highest UV index are May, 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
Almada, Portugal
- Average cloud cover in December: 34
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in December
Almada, 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).
