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Bulgaria - Coast

Sveti Vlas weather in December 2025

Bulgaria - Coast

Sveti Vlas weather in December 2025

 

Day

7 °C

 

Night

1 °C

 

Sea

10 °C

 

Precipitation

56 mm

in month

 

Rainy days

8 days

in month

 

Daylight

9 hours

average

 

Sunshine

2 hours

average

 

Humidity

80 %

 

Day

7 °C

 

Night

1 °C

 

Sea

10 °C

 

Precipitation

56 mm

in month

 

Rainy days

8 days

in month

 

Daylight

9 hours

average

 

Sunshine

2 hours

average

 

Humidity

80 %

Overview: Sveti Vlas
In December in Sveti Vlas, the average air temperature ranges from 7 °C (45 °F) during the day to 1 °C (34 °F) at night. There are 8 days of rain on average, where the rainfall is 56 mm (2.20 in).

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Weather overview for Sveti Vlas

Weather overview

In December in Sveti Vlas, the average air temperature ranges from 7 °C (45 °F) during the day to 1 °C (34 °F) at night. There are 8 days of rain on average, where the rainfall is 56 mm (2.20 in).

Is December a good month to visit Sveti Vlas?

In December there are not good conditions to visit Sveti Vlas. A relatively low temperature of 7 °C (45 °F) may be ideal for walking or outdoor activities, but some people may have a different idea of the holiday. The night temperature of 1 °C (34 °F) is not inviting for evening and night activities except for visiting a bar and having beer or two.

What is the temperature in Sveti Vlas during the day in December?

The average daily temperature in December in Sveti Vlas is 7 °C (45 °F). Be sure to pack warm clothes, including a jacket and a warm sweater. On some days it may occasionally freeze, but with stronger winds, the feeling of cold may increase.

What is the average number of rainy days in December in Sveti Vlas?

There are 8 days, which are rainy in Sveti Vlas in December, that is, days with precipitation more than 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 1.8 days of the week, or in general - 25 % days.

How heavy is the precipitation in Sveti Vlas in December?

In December in Sveti Vlas, there is 56 mm (2.20 in) rainfall, which means on average 2 mm (0.07 in) rainfall per day.

What is the air temperature in Sveti Vlas in December at night?

The average night temperature in Sveti Vlas in December is 1 °C (34 °F). The nights will be cool, layers of clothes will be needed for evening and morning walks, the hotel should be equipped with heating.

Is the temperature rising or falling in the course of time in Sveti Vlas in December?

During December in Sveti Vlas, the day temperatures are decreasing - from 9 °C (49 °F) at the beginning of the month to 6 °C (44 °F) at the end of the month.

How long is the day (from dawn till dusk) in Sveti Vlas in December?

The length of daylight in December in Sveti Vlas is 9 hours.

Is December part of the dry season in Sveti Vlas?

No, December is not a dry month in Sveti Vlas, expect rain approximately 8 days in a month.

Is it freezing in December in Sveti Vlas?

It is possible that it will be freezing in December in Sveti Vlas, night temperatures will be 1 °C (34 °F) on average.

How does the sea temperature evolve during the month in December in Sveti Vlas?

Sveti Vlas has a decreasing trend of the sea temperature during December - from 12 °C (53 °F) in the first days of the month to 9 °C (48 °F) in the last days of the month.

How windy is it in December in Sveti Vlas?

In December in Sveti Vlas, there will be an average wind scale of 5.

Is Sveti Vlas rainier in December than in November?

Yes, Sveti Vlas is a rainier December than in November.

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