December weather forecast
Riga, Latvia

A sunny day in Riga, Latvia, with a view of the river and a clear skyscape
A sunny day in Riga, Latvia, with a view of the river and a clear skyscape

Weather in December

The first month of the winter, December, is still a cold month in Riga, Latvia, with temperature in the range of an average low of -1.3°C (29.7°F) and an average high of 1.4°C (34.5°F).

Temperature

In December, the average high-temperature marginally drops from 5.5°C (41.9°F) in November to a still cold 1.4°C (34.5°F). The average low-temperature, in Riga, is -1.3°C (29.7°F).

Humidity

The average relative humidity in December in Riga is 88%.

Rainfall

In December, the rain falls for 9.9 days. Throughout December, 23mm (0.91") of precipitation is accumulated. In Riga, during the entire year, the rain falls for 142 days and collects up to 382mm (15.04") of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Riga, during 11.6 snowfall days, 70mm (2.76") of snow is typically accumulated. In Riga, during the entire year, snow falls for 52.2 days and aggregates up to 327mm (12.87") of snow.

Sea temperature

In Riga, Latvia, the average seawater temperature in December is 4°C (39.2°F).
Note: For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

Daylight

December has the shortest days of the year, with an average of 6h and 52min of daylight.
On the first day of the month, sunrise is at 08:36 and sunset at 15:49. On the last day of December, in Riga, Latvia, sunrise is at 09:01 and sunset at 15:51 EET.

Sunshine

December has the least sunshine of the year, with an average of 2h of sunshine.

UV index

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Riga. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the average maximum UV index of 1 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in Riga?

The average high-temperature, in December, in Riga, Latvia, is 1.4°C (34.5°F), while the average low-temperature is -1.3°C (29.7°F).

What is the average humidity in December in Riga?

In December, the average relative humidity in Riga is 88%.

How much does it rain in Riga in December?

In Riga, Latvia, in December, during 9.9 rainfall days, 23mm (0.91") of precipitation is typically accumulated.

How much does it snow in Riga in December?

In Riga, in December, snow falls for 11.6 days, with typically accumulated 70mm (2.76") of snow.

How cold is the water in December in Riga?

In December, the average sea temperature is 4°C (39.2°F). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

What is the month with the shortest days in Riga?

The month with the shortest days in Riga, Latvia, is December, with an average of 6h and 52min of daylight.

What is the average length of the day in December in Riga?

In Riga, Latvia, the average day length in December is 6h and 52min.

When are sunrise and sunset in December in Riga?

On the first day of December in Riga, sunrise is at 08:36 and sunset at 15:49. On the last day of the month, sunrise is at 09:01 and sunset at 15:51 EET.

What is the month with the least sunshine in Riga?

With an average of 2h of sunshine, December has the least sunshine of the year in Riga.

How long on average sun shines in December in Riga?

In December, the average sunshine duration in Riga, Latvia, is 2h.

What are the months with the lowest UV index in Riga?

The months with the lowest UV index in Riga are January, February and December, with an average maximum UV index of 1.

What is the UV index intensity in December in Riga?

In December, the average daily maximum UV index in Riga, Latvia, is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Riga, Latvia

Average temperature in December - Riga, Latvia
  • Average high temperature in December: 1.4°C

The warmest month (with the highest average high temperature) is July (22.4°C).
The month with the lowest average high temperature is January (-1.3°C).

  • Average low temperature in December: -1.3°C

The month with the highest average low temperature is July (14.5°C).
The coldest month (with the lowest average low temperature) is January (-4.8°C).

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Average pressure in December
Riga, Latvia

Average pressure in December - Riga, Latvia
  • Average pressure in December: 1011.4mbar

The month with the highest atmospheric pressure is October (1016.1mbar).
The month with the lowest atmospheric pressure is December (1011.4mbar).

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Average wind speed in December
Riga, Latvia

Average wind speed in December - Riga, Latvia
  • Average wind speed in December: 18.9km/h

The windiest month (with the highest average wind speed) is December (18.9km/h).
The calmest month (with the lowest average wind speed) is May (13.1km/h).

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Average humidity in December
Riga, Latvia

Average humidity in December - Riga, Latvia
  • Average humidity in December: 88%

The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (72%).

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Average rainfall in December
Riga, Latvia

Average rainfall in December - Riga, Latvia
  • Average rainfall in December: 23mm

The wettest month (with the highest rainfall) is July (47mm).
The driest month (with the least rainfall) is April (19mm).

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Average rainfall days in December
Riga, Latvia

Average rainfall days in December - Riga, Latvia
  • Average rainfall days in December: 9.9 days

The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is February (6 days).

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Average snowfall in December
Riga, Latvia

Average snowfall in December - Riga, Latvia
  • Average snowfall in December: 70mm

The month with the highest snowfall is January (84mm).
The months with the least snowfall are May, June, July, August and September (0mm).

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Average snowfall days in December
Riga, Latvia

Average snowfall days in December - Riga, Latvia
  • Average snowfall days in December: 11.6 days

The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in December
Riga, Latvia

Average sea temperature in December - Riga, Latvia
  • Average sea temperature in December: 4°C

The best month for swimming (with the highest average sea temperature) is August (17°C).
The coldest months (with the lowest average sea temperature) are February and March (1°C).

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Average daylight in December /
Average sunshine in December
Riga, Latvia

Average daylight in December / Average sunshine in December - Riga, Latvia
  • Average daylight in December: 6h and 52min

The month with the longest days is June (Average daylight: 17h and 46min).
The month with the shortest days is December (Average daylight: 6h and 52min).

  • Average sunshine in December: 2h

The month with the most sunshine is June (Average sunshine: 11h).
The month with the least sunshine is December (Average sunshine: 2h).

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Average sunshine days in December
Riga, Latvia

Average sunshine days in December - Riga, Latvia
  • Average sunshine days in December: 10.1 days

The month with the most sunshine days is April (16.8 days).
The month with the least sunshine days is December (10.1 days).

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Average UV index in December
Riga, Latvia

Average UV index in December - Riga, 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, February and December (UV index 1).

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Average cloud cover in December
Riga, Latvia

Average cloud cover in December - Riga, Latvia
  • Average cloud cover in December: 79

The month with the most cloud cover is December (Cloud cover 79).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in December
Riga, Latvia

Average visibility in December - Riga, Latvia
  • Average visibility in December: 9km

The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January and February (8km).

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