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
During December, the average high-temperature is a moderate 15.4°C (59.7°F), maintaining a close resemblance to that of the preceding month. The month of December in Olhalvo is marked by an average minimum temperature of 10.4°C (50.7°F), slightly cooler than its daytime counterpart.Humidity
In Olhalvo, the average relative humidity in December is 77%.Rainfall
In Olhalvo, in December, it is raining for 11.1 days, with typically 53mm (2.09") of accumulated precipitation. Throughout the year, there are 118.8 rainfall days, and 406mm (15.98") 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 07:36 and sunset at 17:14. On the last day of December, in Olhalvo, sunrise is at 07:55 and sunset at 17:23 WET.
Sunshine
In Olhalvo, Portugal, the average sunshine in December is 5.8h.UV index
January through April, November and December, with an average maximum UV index of 4, are months with the lowest UV index in Olhalvo. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: An average UV index of 4 in December transforms into this advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Olhalvo?
What is the average humidity in December in Olhalvo?
How much does it rain in Olhalvo in December?
What is the month with the shortest days in Olhalvo?
How many hours of daylight does Olhalvo have in December?
When is the sunrise / sunset in December in Olhalvo?
How long on average sun shines in December in Olhalvo?
When is the lowest UV index in Olhalvo?
How high is the UV index in December in Olhalvo?
Average temperature in December
Olhalvo, Portugal
- Average high temperature in December: 15.4°C
The warmest month (with the highest average high temperature) is August (25.7°C).
The month with the lowest average high temperature is January (14.3°C).
- Average low temperature in December: 10.4°C
The month with the highest average low temperature is August (17.3°C).
The coldest month (with the lowest average low temperature) is February (9.5°C).
Average pressure in December
Olhalvo, Portugal
- Average pressure in December: 1022.5mbar
The month with the highest atmospheric pressure is December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in December
Olhalvo, Portugal
- Average wind speed in December: 15.8km/h
The windiest month (with the highest average wind speed) is February (17.6km/h).
The calmest month (with the lowest average wind speed) is October (14km/h).
Average humidity in December
Olhalvo, Portugal
- Average humidity in December: 77%
The month with the highest relative humidity is January (78%).
The months with the lowest relative humidity are September and October (72%).
Average rainfall in December
Olhalvo, Portugal
- Average rainfall in December: 53mm
The wettest month (with the highest rainfall) is November (74mm).
The driest month (with the least rainfall) is July (3mm).
Average rainfall days in December
Olhalvo, Portugal
- Average rainfall days in December: 11.1 days
The month with the highest number of rainy days is November (14.8 days).
The month with the least rainy days is August (3.1 days).
Average daylight in December /
Average sunshine in December
Olhalvo, 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 5min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in December
Olhalvo, Portugal
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is July (26.5 days).
The month with the least sunshine days is November (12.8 days).
Average UV index in December
Olhalvo, Portugal
- Average UV index in December: 4
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, April, November and December (UV index 4).
Average cloud cover in December
Olhalvo, Portugal
- Average cloud cover in December: 37
The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in December
Olhalvo, Portugal
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (10km).
The months with the lowest visibility are July and August (9km).
