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
Weather in December
Temperature
The arrival of December sees an average high-temperature of an enjoyable 18.7°C (65.7°F), hardly diverging from November's 20°C (68°F). Estreito da Calheta sustains an average of approximately a still comfortable 17.5°C (63.5°F) during December nights, with little variation from daytime highs.Humidity
In December, the average relative humidity in Estreito da Calheta is 74%.Rainfall
In Estreito da Calheta, during December, the rain falls for 13.4 days and regularly aggregates up to 27mm (1.06") of precipitation. Throughout the year, there are 116.4 rainfall days, and 232mm (9.13") of precipitation is accumulated.Sea temperature
In Estreito da Calheta, Portugal, the average seawater temperature in December is 20°C (68°F).Note: Most people do not enjoy swimming in water of 20°C (68°F). Breathing control becomes harder as the temperature descends from 21°C (69.8°F) to 15°C (59°F).
Daylight
The month with the shortest days is December, with an average of 10h and 0min of daylight.On the first day of December in Estreito da Calheta, sunrise is at 07:53 and sunset at 18:02. On the last day of the month, sunrise is at 08:10 and sunset at 18:13 WET.
Sunshine
January and December, with an average of 7.6h of sunshine, are months with the least sunshine.UV index
January through June, November and December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In December, the maximum UV index of 5 suggests these recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Estreito da Calheta?
What is the average humidity in December in Estreito da Calheta?
How many days does it rain in December in Estreito da Calheta?
What is the sea temperature in December in Estreito da Calheta?
What is the month with the shortest days in Estreito da Calheta?
How many hours of daylight does Estreito da Calheta have in December?
What time are sunrise and sunset in December in Estreito da Calheta?
What are the months with the least sunshine in Estreito da Calheta?
How many hours of sunshine does Estreito da Calheta have in December?
What is the month with the lowest UV index in Estreito da Calheta?
How high is the UV index in December in Estreito da Calheta?
Average temperature in December
Estreito da Calheta, Portugal
- Average high temperature in December: 18.7°C
The warmest month (with the highest average high temperature) is August (23°C).
The months with the lowest average high temperature are February and March (16.9°C).
- Average low temperature in December: 17.5°C
The month with the highest average low temperature is September (21.7°C).
The coldest month (with the lowest average low temperature) is March (15.1°C).
Average pressure in December
Estreito da Calheta, Portugal
- Average pressure in December: 1022.4mbar
The month with the highest atmospheric pressure is January (1024.1mbar).
The month with the lowest atmospheric pressure is October (1017mbar).
Average wind speed in December
Estreito da Calheta, Portugal
- Average wind speed in December: 22.3km/h
The windiest month (with the highest average wind speed) is February (23km/h).
The calmest month (with the lowest average wind speed) is September (17.7km/h).
Average humidity in December
Estreito da Calheta, Portugal
- Average humidity in December: 74%
The months with the highest relative humidity are June and August (80%).
The month with the lowest relative humidity is February (73%).
Average rainfall in December
Estreito da Calheta, Portugal
- Average rainfall in December: 27mm
The wettest month (with the highest rainfall) is October (44mm).
The driest month (with the least rainfall) is August (3mm).
Average rainfall days in December
Estreito da Calheta, Portugal
- Average rainfall days in December: 13.4 days
The month with the highest number of rainy days is November (16 days).
The month with the least rainy days is August (3.9 days).
Average sea temperature in December
Estreito da Calheta, Portugal
- Average sea temperature in December: 20°C
The best months for swimming (with the highest average sea temperature) are August, September and October (23°C).
The coldest months (with the lowest average sea temperature) are January, February, March and April (18°C).
Average daylight in December /
Average sunshine in December
Estreito da Calheta, Portugal
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 7h and 4min
The month with the most sunshine is June (Average sunshine: 9h and 12min).
The months with the least sunshine are January and December (Average sunshine: 7h and 36min).
Average sunshine days in December
Estreito da Calheta, Portugal
- Average sunshine days in December: 12 days
The month with the most sunshine days is August (20.9 days).
The month with the least sunshine days is November (8.4 days).
Average UV index in December
Estreito da Calheta, Portugal
- Average UV index in December: 5
The months with the highest UV index are July, August, September and October (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, November and December (UV index 5).
Average cloud cover in December
Estreito da Calheta, Portugal
- Average cloud cover in December: 39
The month with the most cloud cover is November (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in December
Estreito da Calheta, 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).
Estreito da Calheta, Portugal
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