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
Weather in December
Temperature
With the onset of December, Roja's average high-temperature slightly adjusts, moderately receding from November's frosty 6°C (42.8°F) to a wintry 2.4°C (36.3°F). In December, Roja temperatures settle at a low of 0.2°C (32.4°F) during the nights, reflecting a minor change from daytime highs.Humidity
In December, the average relative humidity is 86%.Rainfall
In Roja, Latvia, during December, the rain falls for 9.1 days and regularly aggregates up to 18mm (0.71") of precipitation. In Roja, during the entire year, the rain falls for 139.3 days and collects up to 295mm (11.61") of precipitation.Snowfall
January through April, October through December are months with snowfall. In Roja, during December, snow falls for 9.2 days and regularly aggregates up to 39mm (1.54") of snow. In Roja, during the entire year, snow falls for 49.3 days and aggregates up to 183mm (7.2") of snow.Daylight
The month with the shortest days is December, with an average of 6h and 42min of daylight.On the first day of December, sunrise is at 08:45 and sunset at 15:50. On the last day of the month, sunrise is at 09:10 and sunset at 15:53 EET.
Sunshine
The month with the least sunshine in Roja is December, with an average of 2.2h of sunshine.UV index
January, March and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 1 during December translates into the following directions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Roja?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days in Roja?
How many hours of daylight does Roja have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Roja, Latvia
- Average high temperature in December: 2.4°C
The warmest month (with the highest average high temperature) is July (20.6°C).
The months with the lowest average high temperature are January and February (-0.3°C).
- Average low temperature in December: 0.2°C
The months with the highest average low temperature are July and August (15.3°C).
The coldest months (with the lowest average low temperature) are January and February (-3°C).
Average pressure in December
Roja, Latvia
- Average pressure in December: 1010.5mbar
The month with the highest atmospheric pressure is October (1015.6mbar).
The month with the lowest atmospheric pressure is December (1010.5mbar).
Average wind speed in December
Roja, Latvia
- Average wind speed in December: 24.4km/h
The windiest month (with the highest average wind speed) is December (24.4km/h).
The calmest month (with the lowest average wind speed) is May (15.5km/h).
Average humidity in December
Roja, Latvia
- Average humidity in December: 86%
The months with the highest relative humidity are January and February (88%).
The months with the lowest relative humidity are May, June, July and August (75%).
Average rainfall in December
Roja, Latvia
- Average rainfall in December: 18mm
The wettest month (with the highest rainfall) is July (43mm).
The driest month (with the least rainfall) is April (13mm).
Average rainfall days in December
Roja, Latvia
- Average rainfall days in December: 9.1 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (7 days).
Average snowfall in December
Roja, Latvia
- Average snowfall in December: 39mm
The month with the highest snowfall is January (45mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Roja, Latvia
- Average snowfall days in December: 9.2 days
The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Roja, Latvia
- Average daylight in December: 6h and 4min
The month with the longest days is June (Average daylight: 17h and 54min).
The month with the shortest days is December (Average daylight: 6h and 42min).
- Average sunshine in December: 2h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 12min).
Average sunshine days in December
Roja, Latvia
- Average sunshine days in December: 12.5 days
The month with the most sunshine days is May (16.5 days).
The month with the least sunshine days is July (11 days).
Average UV index in December
Roja, Latvia
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, March and December (UV index 1).
Average cloud cover in December
Roja, Latvia
- Average cloud cover in December: 74
The months with the most cloud cover are January and December (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Roja, Latvia
- Average visibility in December: 9km
The months with the highest visibility are May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, November and December (9km).
Roja, Latvia
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