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
Ceira registers an average high-temperature of a still refreshing 14°C (57.2°F) with the arrival of December, showing minor deviation from the preceding month. In the month of December, an average of 6.5°C (43.7°F) marks the low-temperature in Ceira.Humidity
The average relative humidity in December is 80%.Rainfall
In December, the rain falls for 11 days. Throughout December, 70mm (2.76") of precipitation is accumulated. Throughout the year, there are 119.4 rainfall days, and 525mm (20.67") of precipitation is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 07:37 and sunset at 17:08. On the last day of December, sunrise is at 07:55 and sunset at 17:17 WET.
Sunshine
In December, the average sunshine is 5.7h.UV index
January through March, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Ceira. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 3 in December translates into these instructions:
Be vigilant - Preventing sunburn is recommended. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Frequently asked questions
What are December temperatures in Ceira?
What is the average humidity in December in Ceira?
How many days does it rain in December in Ceira?
What is the month with the shortest days in Ceira?
What is the average length of the day in December in Ceira?
When is the sunrise / sunset in December in Ceira?
How long on average sun shines in December in Ceira?
What are the months with the lowest UV index in Ceira?
What is the UV index intensity in December in Ceira?
Average temperature in December
Ceira, Portugal
- Average high temperature in December: 14°C
The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (12.9°C).
- Average low temperature in December: 6.5°C
The month with the highest average low temperature is July (14.5°C).
The coldest month (with the lowest average low temperature) is January (5.4°C).
Average pressure in December
Ceira, Portugal
- Average pressure in December: 1022.7mbar
The month with the highest atmospheric pressure is December (1022.7mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in December
Ceira, Portugal
- Average wind speed in December: 8.4km/h
The windiest month (with the highest average wind speed) is March (9km/h).
The calmest month (with the lowest average wind speed) is September (7.2km/h).
Average humidity in December
Ceira, Portugal
- Average humidity in December: 80%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are August and September (65%).
Average rainfall in December
Ceira, Portugal
- Average rainfall in December: 70mm
The wettest month (with the highest rainfall) is November (77mm).
The driest month (with the least rainfall) is July (4mm).
Average rainfall days in December
Ceira, Portugal
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is April (14.7 days).
The month with the least rainy days is August (2.8 days).
Average daylight in December /
Average sunshine in December
Ceira, Portugal
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- 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 0min).
Average sunshine days in December
Ceira, Portugal
- Average sunshine days in December: 18.9 days
The month with the most sunshine days is August (27.5 days).
The months with the least sunshine days are April and November (14.3 days).
Average UV index in December
Ceira, 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, March, November and December (UV index 3).
Average cloud cover in December
Ceira, Portugal
- Average cloud cover in December: 41
The month with the most cloud cover is January (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 22).
Average visibility in December
Ceira, Portugal
- Average visibility in December: 9km
The months with the highest visibility are June, September, October and December (9km).
The months with the lowest visibility are January, February, March, April, May, July, August and November (8km).
Ceira, Portugal
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