Just to the north we find the Siutghiol lake, a lagoon separated from the sea by a long strip of sand, where we find the tourist resort of Mamaia.
is cold, because the Black Sea is not very large, and in winter it cools down a lot under the influence of cold air masses from Russia. During the coldest winters, the sea can even freeze.
In these situations, there is a delay in the spring warming, so it is still cold in March, but sometimes even in April.
On the coldest nights of the year, the temperature typically drops below -10 °C (14 °F). The record is -18 °C (0 °F), recorded in January 2010.
While it is generally not too hot, there can be very hot periods, in which the temperature reach or exceed 35 °C (95 °F). The record heat is 38.5 °C (101.5 °F), recorded in July 2007.
to go to Constanta for a beach holiday, is the summer, especially in July and August, when the temperatures are higher. In June, it's often a bit cooler, so it's better to bring a sweatshirt for the evening. Usually, the weather is still good in the first half of September, although it starts to be a bit cool at night, with minimum temperatures about 15 °C (59 °F).
. Here are the average temperatures.
January, the coldest month of the year, is generally a cold month. The average temperature is of
1.7 °C, with a minimum of
-1.2 °C and a maximum of
4.6 °C.

On the coldest nights of the month, the temperature usually drops to around
-10.5 °C. However, it dropped to
-17.8 °C in January 2010.

On the warmest days of the month, the temperature usually reaches around
13.5 °C. However, it reached
18.3 °C in January 2007.

Precipitation amounts to
35 mm, distributed over 6 days.
The day lasts on average 9 hours and 20 minutes.

There are on average 3 hours of sunshine per day. So, the sun shines 30% of the time.
The average humidity is 85%. Hence, the air is normally humid.
The average wind speed is of
14 kph.

The average sea temperature is of
7.3 °C. Therefore, the sea is very cold for swimming.
February is generally a cold month. The average temperature is of
3.2 °C, with a minimum of
0 °C and a maximum of
6.4 °C.

On the coldest nights of the month, the temperature usually drops to around
-8 °C. However, it dropped to
-15.7 °C in February 2012.

On the warmest days of the month, the temperature usually reaches around
16 °C. However, it reached
24.5 °C in February 1995.

Precipitation amounts to
25 mm, distributed over 5 days.
The day lasts on average 10 hours and 30 minutes.

There are on average 4 hours of sunshine per day. So, the sun shines 37% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is of
14 kph.

The average sea temperature is of
6.3 °C. Therefore, the sea is very cold for swimming.
March is generally a quite mild month. The average temperature is of
6.7 °C, with a minimum of
3.3 °C and a maximum of
10.1 °C.

On the coldest nights of the month, the temperature usually drops to around
-2.5 °C. However, it dropped to
-11.8 °C in March 2018.

On the warmest days of the month, the temperature usually reaches around
20 °C. However, it reached
27.9 °C in March 2001.

Precipitation amounts to
40 mm, distributed over 6 days.
The day lasts on average 12 hours and 0 minutes.

There are on average 4.5 hours of sunshine per day. So, the sun shines 38% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is of
25 kph.

The average sea temperature is of
6.9 °C. Therefore, the sea is very cold for swimming.
April is generally a mild month. The average temperature is of
11.2 °C, with a minimum of
7.8 °C and a maximum of
14.7 °C.

On the coldest nights of the month, the temperature usually drops to around
2.5 °C. However, it dropped to
-1.3 °C in April 1995.

On the warmest days of the month, the temperature usually reaches around
23 °C. However, it reached
30.6 °C in April 1998.

Precipitation amounts to
35 mm, distributed over 5 days.
The day lasts on average 13 hours and 30 minutes.

There are on average 6.5 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is of
16 kph.

The average sea temperature is of
9.7 °C. Therefore, the sea is very cold for swimming.
May is generally a very mild month. The average temperature is of
16.9 °C, with a minimum of
13.2 °C and a maximum of
20.6 °C.

On the coldest nights of the month, the temperature usually drops to around
8 °C. However, it dropped to
3.4 °C in May 2000.

On the warmest days of the month, the temperature usually reaches around
28 °C. However, it reached
33 °C in May 1993.

Precipitation amounts to
45 mm, distributed over 6 days.
The day lasts on average 14 hours and 50 minutes. So the days are long.

There are on average 9 hours of sunshine per day. So, the sun shines 59% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is of
12 kph.

The average sea temperature is of
15.2 °C. Therefore, the sea is cold for swimming.
June is generally a warm month. The average temperature is of
21.5 °C, with a minimum of
17.6 °C and a maximum of
25.4 °C.

On the coldest nights of the month, the temperature usually drops to around
12.5 °C. However, it dropped to
8.9 °C in June 1997.

On the warmest days of the month, the temperature usually reaches around
31 °C. However, it reached
34.1 °C in June 2012.

Precipitation amounts to
45 mm, distributed over 5 days.
The day lasts on average 15 hours and 30 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.

There are on average 9.5 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is of
14 kph.

The average sea temperature is of
20.6 °C. Therefore, the sea is cool for swimming.
July is generally a warm to hot, muggy month. The average temperature is of
23.8 °C, with a minimum of
19.8 °C and a maximum of
27.8 °C.

On the coldest nights of the month, the temperature usually drops to around
16 °C. However, it dropped to
12 °C in July 1993.

On the warmest days of the month, the temperature usually reaches around
32.5 °C. However, it reached
38.5 °C in July 2007.

Precipitation amounts to
45 mm, distributed over 4 days.
The day lasts on average 15 hours and 5 minutes. So the days are long.

There are on average 10.5 hours of sunshine per day. So, the sun shines 70% of the time.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is of
9 kph.

The average sea temperature is of
23.7 °C. Therefore, the sea can be considered barely acceptable for swimming.
August, the warmest month of the year, is generally a warm to hot, muggy month. The average temperature is of
23.8 °C, with a minimum of
19.9 °C and a maximum of
27.8 °C.

On the coldest nights of the month, the temperature usually drops to around
15 °C. However, it dropped to
10.8 °C in August 1993.

On the warmest days of the month, the temperature usually reaches around
32 °C. However, it reached
37.5 °C in August 2006.

Precipitation amounts to
40 mm, distributed over 3 days.
The day lasts on average 13 hours and 55 minutes.

There are on average 10 hours of sunshine per day. So, the sun shines 71% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is of
9 kph.

The average sea temperature is of
24.6 °C. Therefore, the sea is warm enough for swimming.
September is generally a warm month. The average temperature is of
19.4 °C, with a minimum of
15.7 °C and a maximum of
23.2 °C.

On the coldest nights of the month, the temperature usually drops to around
10 °C. However, it dropped to
5.5 °C in September 2018.

On the warmest days of the month, the temperature usually reaches around
29.5 °C. However, it reached
33.5 °C in September 2012.

Precipitation amounts to
45 mm, distributed over 4 days.
The day lasts on average 12 hours and 30 minutes.

There are on average 7.5 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of
12 kph.

The average sea temperature is of
21.8 °C. Therefore, the sea is cool for swimming.
October is generally a mild month. The average temperature is of
14.2 °C, with a minimum of
10.8 °C and a maximum of
17.6 °C.

On the coldest nights of the month, the temperature usually drops to around
3.5 °C. However, it dropped to
-3 °C in October 1997.

On the warmest days of the month, the temperature usually reaches around
25 °C. However, it reached
30 °C in October 1997.

Precipitation amounts to
45 mm, distributed over 5 days.
The day lasts on average 10 hours and 55 minutes.

There are on average 5.5 hours of sunshine per day. So, the sun shines 50% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is of
27 kph.

The average sea temperature is of
17.5 °C. Therefore, the sea is cold for swimming.
November is generally a mild month. The average temperature is of
8.8 °C, with a minimum of
5.8 °C and a maximum of
11.9 °C.

On the coldest nights of the month, the temperature usually drops to around
-1.5 °C. However, it dropped to
-7.9 °C in November 1999.

On the warmest days of the month, the temperature usually reaches around
20.5 °C. However, it reached
27 °C in November 2001.

Precipitation amounts to
45 mm, distributed over 6 days.
The day lasts on average 9 hours and 35 minutes.

There are on average 3.5 hours of sunshine per day. So, the sun shines 35% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is of
12 kph.

The average sea temperature is of
13.1 °C. Therefore, the sea is very cold for swimming.
December is generally a cold month. The average temperature is of
3.6 °C, with a minimum of
0.6 °C and a maximum of
6.5 °C.

On the coldest nights of the month, the temperature usually drops to around
-7.5 °C. However, it dropped to
-13.8 °C in December 1996.

On the warmest days of the month, the temperature usually reaches around
15 °C. However, it reached
19.7 °C in December 2004.

Precipitation amounts to
40 mm, distributed over 6 days.
The day lasts on average 8 hours and 55 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.

There are on average 2.5 hours of sunshine per day. So, the sun shines 30% of the time.
The average humidity is 86%. Hence, the air is normally humid.
The average wind speed is of
14 kph.

The average sea temperature is of
9.4 °C. Therefore, the sea is very cold for swimming.