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
December
Weather in December
Temperature
The arrival of December denotes a barely perceptible change in the average high-temperatures to a mild 14.2°C (57.6°F) from November's 16.4°C (61.5°F). An average nighttime temperature of 6.6°C (43.9°F) is witnessed throughout December.Humidity
The average relative humidity in December is 78%.Rainfall
In Galveias, in December, during 8.3 rainfall days, 42mm (1.65") of precipitation is typically accumulated. Throughout the year, in Galveias, there are 85.1 rainfall days, and 280mm (11.02") of precipitation is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year in Galveias.On the first day of the month, sunrise is at 07:32 and sunset at 17:09. On the last day of December, sunrise is at 07:51 and sunset at 17:19 WET.
Sunshine
The average sunshine in December is 5.7h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A daily high UV index of 3 in December leads to these guidelines:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Around midday, solar radiation is most harmful; hence, exposure should be limited. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Galveias in December?
What is the average humidity in December in Galveias?
How much does it rain in Galveias in December?
What is the month with the shortest days in Galveias?
How many hours of daylight does Galveias have in December?
When are sunrise and sunset in December in Galveias?
How long on average sun shines in December in Galveias?
What are the months with the lowest UV index in Galveias?
What is the UV index intensity in December in Galveias?
Average temperature in December
Galveias, Portugal
- Average high temperature in December: 14.2°C
The warmest month (with the highest average high temperature) is August (32.7°C).
The month with the lowest average high temperature is January (13.3°C).
- Average low temperature in December: 6.6°C
The month with the highest average low temperature is August (15.7°C).
The coldest month (with the lowest average low temperature) is January (5.7°C).
Average pressure in December
Galveias, Portugal
- Average pressure in December: 1022.8mbar
The month with the highest atmospheric pressure is December (1022.8mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in December
Galveias, Portugal
- Average wind speed in December: 10.7km/h
The windiest month (with the highest average wind speed) is February (12.6km/h).
The calmest month (with the lowest average wind speed) is September (9.8km/h).
Average humidity in December
Galveias, 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 (55%).
Average rainfall in December
Galveias, Portugal
- Average rainfall in December: 42mm
The wettest month (with the highest rainfall) is November (50mm).
The driest months (with the least rainfall) are July and August (3mm).
Average rainfall days in December
Galveias, Portugal
- Average rainfall days in December: 8.3 days
The month with the highest number of rainy days is November (11.2 days).
The month with the least rainy days is August (1.6 days).
Average daylight in December /
Average sunshine in December
Galveias, 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 36min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in December
Galveias, Portugal
- Average sunshine days in December: 21.6 days
The months with the most sunshine days are July and August (28.7 days).
The month with the least sunshine days is November (17.9 days).
Average UV index in December
Galveias, Portugal
- Average UV index in December: 3
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, November and December (UV index 3).
Average cloud cover in December
Galveias, Portugal
- Average cloud cover in December: 38
The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 12).
Average visibility in December
Galveias, Portugal
- Average visibility in December: 9km
The month with the highest visibility is June (10km).
The month with the lowest visibility is January (8km).
