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
With the onset of December, a modest change to a moderate 15.6°C (60.1°F) from November's 17.9°C (64.2°F) is noted in high-temperature. In the month of December, Palmela witnesses a consistent average low-temperature of 10.3°C (50.5°F).Humidity
In Palmela, the average relative humidity in December is 76%.Rainfall
In December, in Palmela, the rain falls for 9.7 days. Throughout December, 47mm (1.85") of precipitation is accumulated. Throughout the year, in Palmela, Portugal, there are 100.8 rainfall days, and 338mm (13.31") of precipitation is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 07:34 and sunset at 17:14. On the last day of December, sunrise is at 07:53 and sunset at 17:24 WET.
Sunshine
In Palmela, the average sunshine in December is 5.9h.UV index
January through April, November and December, with an average maximum UV index of 4, are months with the lowest UV index in Palmela, Portugal. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: A maximum UV index of 4 in December translates into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
What is the average December temperature in Palmela?
What is the average humidity in December in Palmela?
How much does it rain in Palmela in December?
What is the month with the shortest days in Palmela?
How many hours of daylight does Palmela have in December?
When are sunrise and sunset in December in Palmela?
How long on average sun shines in December in Palmela?
What are the months with the lowest UV index in Palmela?
What is the UV index reading in December in Palmela?
Average temperature in December
Palmela, Portugal
- Average high temperature in December: 15.6°C
The warmest month (with the highest average high temperature) is August (28.8°C).
The month with the lowest average high temperature is January (14.8°C).
- Average low temperature in December: 10.3°C
The month with the highest average low temperature is July (17.3°C).
The coldest month (with the lowest average low temperature) is February (9.1°C).
Average pressure in December
Palmela, 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 (1015.6mbar).
Average wind speed in December
Palmela, Portugal
- Average wind speed in December: 13.6km/h
The windiest month (with the highest average wind speed) is February (14.8km/h).
The calmest month (with the lowest average wind speed) is September (11.6km/h).
Average humidity in December
Palmela, Portugal
- Average humidity in December: 76%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is August (64%).
Average rainfall in December
Palmela, Portugal
- Average rainfall in December: 47mm
The wettest month (with the highest rainfall) is November (55mm).
The driest months (with the least rainfall) are July and August (2mm).
Average rainfall days in December
Palmela, Portugal
- Average rainfall days in December: 9.7 days
The month with the highest number of rainy days is November (13.3 days).
The month with the least rainy days is August (1.7 days).
Average daylight in December /
Average sunshine in December
Palmela, Portugal
- Average daylight in December: 9h and 3min
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 5min
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
Palmela, Portugal
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is August (28 days).
The month with the least sunshine days is November (14.9 days).
Average UV index in December
Palmela, 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, April, November and December (UV index 4).
Average cloud cover in December
Palmela, Portugal
- Average cloud cover in December: 35
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in December
Palmela, 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).
Palmela, Portugal
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