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December weather forecast in Piraeus

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Sun

Sunday

Mon

Monday

Tue

Tuesday

Wed

Wednesday

Thu

Thursday

Fri

Friday

Sat

Saturday

30 November, sun

	763 mmHg		79%
	4.19 m/s		+18

30 November, Sunday. day, 15°; night, 10°; rain

1 December, mon

	763 mmHg		77%
	4.1 m/s		+18

1 December, Monday. day, 15°; night, 10°; overcast

2 December, tue

	763 mmHg		78%
	3.5 m/s		+18

2 December, Tuesday. day, 15°; night, 11°; overcast

3 December, wed

	763 mmHg		77%
	4 m/s		+18

3 December, Wednesday. day, 16°; night, 10°; clear

4 December, thu

	762 mmHg		77%
	4.4 m/s		+18

4 December, Thursday. day, 15°; night, 10°; rain

5 December, fri

	763 mmHg		74%
	3.7 m/s		+17

5 December, Friday. day, 14°; night, 9°; clear

6 December, sat

	763 mmHg		76%
	3.5 m/s		+18

6 December, Saturday. day, 14°; night, 10°; clear

7 December, sun

	762 mmHg		77%
	4 m/s		+18

7 December, Sunday. day, 14°; night, 9°; rain

8 December, mon

	764 mmHg		75%
	4.19 m/s		+17

8 December, Monday. day, 13°; night, 8°; clear

9 December, tue

	764 mmHg		74%
	4.19 m/s		+17

9 December, Tuesday. day, 13°; night, 8°; clear

10 December, wed

	764 mmHg		74%
	4.1 m/s		+16

10 December, Wednesday. day, 13°; night, 8°; rain

11 December, thu

	764 mmHg		74%
	4.3 m/s		+16

11 December, Thursday. day, 13°; night, 8°; rain

12 December, fri

	763 mmHg		74%
	3.8 m/s		+17

12 December, Friday. day, 13°; night, 8°; rain

13 December, sat

	763 mmHg		77%
	3.5 m/s		+16

13 December, Saturday. day, 13°; night, 8°; rain

14 December, sun

	763 mmHg		78%
	3.8 m/s		+16

14 December, Sunday. day, 13°; night, 8°; overcast

15 December, mon

	763 mmHg		79%
	3.8 m/s		+16

15 December, Monday. day, 13°; night, 8°; overcast

16 December, tue

	764 mmHg		78%
	3.9 m/s		+16

16 December, Tuesday. day, 13°; night, 8°; partly cloudy

17 December, wed

	764 mmHg		76%
	4.19 m/s		+16

17 December, Wednesday. day, 12°; night, 8°; overcast

18 December, thu

	764 mmHg		77%
	4.19 m/s		+16

18 December, Thursday. day, 12°; night, 7°; rain

19 December, fri

	764 mmHg		75%
	3.9 m/s		+17

19 December, Friday. day, 12°; night, 7°; clear

20 December, sat

	764 mmHg		74%
	3.5 m/s		+16

20 December, Saturday. day, 12°; night, 7°; clear

21 December, sun

	765 mmHg		75%
	3.7 m/s		+16

21 December, Sunday. day, 12°; night, 7°; clear

22 December, mon

	764 mmHg		76%
	4.19 m/s		+15

22 December, Monday. day, 11°; night, 7°; partly cloudy

23 December, tue

	764 mmHg		75%
	4.3 m/s		+16

23 December, Tuesday. day, 12°; night, 7°; partly cloudy

24 December, wed

	764 mmHg		75%
	3.8 m/s		+16

24 December, Wednesday. day, 12°; night, 7°; clear

25 December, thu

	764 mmHg		75%
	3.3 m/s		+16

25 December, Thursday. day, 13°; night, 7°; clear

26 December, fri

	764 mmHg		77%
	4 m/s		+16

26 December, Friday. day, 12°; night, 8°; overcast

27 December, sat

	764 mmHg		78%
	4.1 m/s		+15

27 December, Saturday. day, 13°; night, 8°; partly cloudy

28 December, sun

	763 mmHg		77%
	4.5 m/s		+15

28 December, Sunday. day, 12°; night, 8°; rain

29 December, mon

	762 mmHg		76%
	4.1 m/s		+15

29 December, Monday. day, 12°; night, 7°; partly cloudy

30 December, tue

	764 mmHg		77%
	4.19 m/s		+14

30 December, Tuesday. day, 12°; night, 7°; rain

31 December, wed

	764 mmHg		77%
	4.1 m/s		+14

31 December, Wednesday. day, 11°; night, 7°; partly cloudy

1 January, thu

	764 mmHg		76%
	3.7 m/s		+15

1 January, Thursday. day, 12°; night, 7°; clear

2 January, fri

	763 mmHg		76%
	3.6 m/s		+15

2 January, Friday. day, 12°; night, 7°; clear

3 January, sat

	762 mmHg		78%
	3.4 m/s		+15

3 January, Saturday. day, 12°; night, 7°; rain

Average data for 10 years

Piraeus December

10

sunny days

9

days with precipitation

8

cloudy days

10 sunny days; 9 days with precipitation; 8 cloudy days;

76

%

air humidity

2.8

m/s

WindSW

66

mm of precipitation

(16% of annual average)

+16

°C

Water temperature

air humidity 76%; 66 millimeters of precipitation (16% of annual average); Wind south-westerly 2.8 Meters per second; Water temperature +16°

Weather graphs for December

TemperatureWater temperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

S

S

S

S

S

SW

SW

S

S

S

S

SW

S

S

S

S

S

S

SW

SW

SW

SW

SW

SW

SW

S

S

SW

SW

S

SW

1

Average data for 10 years

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Daytime temperature

Night-time temperature

Cities near you

Athens
Bodrum
Bali
Izmir
Thessaloniki
Kushadasi
Bansko
Heraklion
Didim

Cities with similar weather in December

Antalya
Barcelona
Rome
Marmaris
Heraklion
Nice
San Francisco
Fethiye
Naples

The weather forecast for December 2025 is based on historical data from the past 10 years.

In December, the weather in Piraeus is typically warm. Average daily high temperature in December is about 13 degrees above zero. On average, Piraeus has 10 sunny, 9 rainy, 6 cloudy, and 6 partly cloudy days in December. The rains are usually moderate. December as well as January and February is considered the most uncomfortable time to visit Piraeus.

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