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 snowfall in December
- Average snowfall 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
December's presence records an average high-temperature of a still refreshing 13°C (55.4°F), closely mirroring November's climate. Semelhe encounters an average low-temperature of 6.4°C (43.5°F) during December nights.Humidity
In December, the average relative humidity in Semelhe is 83%.Rainfall
In December, in Semelhe, the rain falls for 13.5 days. Throughout December, 132mm (5.2") of precipitation is accumulated. Throughout the year, in Semelhe, there are 139.7 rainfall days, and 924mm (36.38") of precipitation is accumulated.Snowfall
In Semelhe, snow does not fall in February through December.Daylight
The month with the shortest days in Semelhe, Portugal, is December, with an average of 9h and 12min of daylight.On the first day of December in Semelhe, sunrise is at 07:41 and sunset at 17:04. On the last day of the month, sunrise is at 08:00 and sunset at 17:13 WET.
Sunshine
In Semelhe, the average sunshine in December is 5.4h.UV index
The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 3 during December leads to these instructions:
Ensure safety - Imperative it is to shield skin and eyes from damage. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Semelhe?
What is the average humidity in December in Semelhe?
How much does it rain in Semelhe in December?
When it does not snow in Semelhe?
Does it snow in Semelhe in December?
What is the month with the shortest days in Semelhe?
What is the average length of the day in December in Semelhe?
What time are sunrise and sunset in December in Semelhe?
How many hours of sunshine does Semelhe have in December?
When is the lowest UV index in Semelhe?
What is the UV index reading in December in Semelhe?
Average temperature in December
Semelhe, Portugal
- Average high temperature in December: 13°C
The warmest month (with the highest average high temperature) is August (27.7°C).
The month with the lowest average high temperature is January (11.8°C).
- Average low temperature in December: 6.4°C
The month with the highest average low temperature is August (14.5°C).
The coldest month (with the lowest average low temperature) is February (5°C).
Average pressure in December
Semelhe, Portugal
- Average pressure in December: 1022.4mbar
The month with the highest atmospheric pressure is December (1022.4mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in December
Semelhe, Portugal
- Average wind speed in December: 7.9km/h
The windiest month (with the highest average wind speed) is March (8.3km/h).
The calmest month (with the lowest average wind speed) is September (6.7km/h).
Average humidity in December
Semelhe, Portugal
- Average humidity in December: 83%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (64%).
Average rainfall in December
Semelhe, Portugal
- Average rainfall in December: 132mm
The wettest month (with the highest rainfall) is November (136mm).
The driest month (with the least rainfall) is July (11mm).
Average rainfall days in December
Semelhe, Portugal
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is January (15.8 days).
The month with the least rainy days is August (5.2 days).
Average snowfall in December
Semelhe, Portugal
- Average snowfall in December: 0mm
The month with the highest snowfall is January (1mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in December
Semelhe, Portugal
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Semelhe, Portugal
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in December
Semelhe, Portugal
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is August (24.4 days).
The month with the least sunshine days is April (12.4 days).
Average UV index in December
Semelhe, Portugal
- Average UV index in December: 3
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 3).
Average cloud cover in December
Semelhe, Portugal
- Average cloud cover in December: 45
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 23).
Average visibility in December
Semelhe, Portugal
- Average visibility in December: 8km
The months with the highest visibility are June, July, August and September (9km).
The month with the lowest visibility is January (7km).
