Sea weather in Thirassía in Santorini All the beach weather in Thirassía

All the essential weather information for enjoying the beach in Thirassía in Santorini, for swimming, tanning or water sports! Our sea weather data is reliable, easy to read and updated every day.

Weather: When should you go to the beach in Thirassía over the next 7 days?

Discover the best moment to go to the beach in Thirassía in Santorini this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Thirassía. You can see full forecasts by clicking on the day you want to see in the table below.

Date Outside temp. Our opinion
Monday 15 December 202554°F to 61°Fnot recommended
Tuesday 16 December 202554°F to 63°Fdiscouraged
Wednesday 17 December 202559°F to 63°Fdiscouraged
Thursday 18 December 202558°F to 61°Fdiscouraged
Friday 19 December 202558°F to 61°Frecommended
Saturday 20 December 202561°F to 65°Fdiscouraged
Sunday 21 December 202561°F to 65°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Thirassía

Sea weather on Monday 15 December 2025

On Monday 15 December 2025, the sun will rise at 07:23 and will set at 17:04 on the beach(es) of Thirassía. The outside temperature will be a high of 61°F t and a low of 54°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! Be careful, the sea will be generally rough with a wind speed of up to 27.3mph km/h (with gusts up to 34.2mph). Wave height will be up to 6.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)14°C (57°F)13°C (55°F)12°C (53°F)16°C (60°F)
Perceived temperature16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)11°C (52°F)9°C (49°F)8°C (47°F)16°C (60°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity63%64%62%59%57%59%61%59%
Barometric pressure1023 hPa1023 hPa1023 hPa1024 hPa1023 hPa1023 hPa1023 hPa1024 hPa
Cloud cover75%26%0%0%0%0%0%0%
Heat index16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)14°C (57°F)13°C (55°F)12°C (53°F)16°C (60°F)
Dew point9°C (48°F)9°C (48°F)8°C (47°F)8°C (46°F)5°C (42°F)5°C (41°F)4°C (40°F)8°C (46°F)
Wind
Speed37km/h (23mph)40km/h (25mph)44km/h (28mph)40km/h (25mph)42km/h (26mph)44km/h (27mph)40km/h (25mph)36km/h (23mph)
Gusts47km/h (29mph)50km/h (31mph)55km/h (34mph)50km/h (31mph)43km/h (26mph)48km/h (30mph)46km/h (29mph)48km/h (30mph)
Direction 347°
NNW
348°
NNW
357°
N
360°
N
355°
N
355°
N

N

N
Wind chill16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)11°C (52°F)9°C (49°F)8°C (47°F)16°C (60°F)
Waves
Height1.4m (4.7ft)1.5m (4.8ft)1.6m (5.4ft)1.7m (5.5ft)1.7m (5.5ft)1.8m (6.0ft)1.9m (6.1ft)1.7m (5.7ft)
Direction 351°
N
352°
N
357°
N

N

N

N

N

N
Period0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.
Significant height1.5m (4.9ft)1.5m (4.9ft)1.7m (5.6ft)1.6m (5.2ft)1.7m (5.6ft)1.8m (5.9ft)1.7m (5.6ft)1.5m (4.9ft)
Sea water temperature
Water temperature20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)

Sea weather on Tuesday 16 December 2025

On Tuesday 16 December 2025, the sun will rise at 07:24 and will set at 17:05 on the beach(es) of Thirassía. The outside temperature will be a high of 63°F t and a low of 54°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 23mph km/h (with gusts up to 28.6mph). Wave height will be up to 5.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature16°C (60°F)15°C (60°F)16°C (60°F)16°C (60°F)14°C (57°F)13°C (56°F)14°C (58°F)16°C (61°F)
Perceived temperature16°C (60°F)15°C (60°F)16°C (60°F)16°C (60°F)11°C (52°F)11°C (51°F)12°C (53°F)16°C (61°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity58%60%59%58%59%61%64%63%
Barometric pressure1024 hPa1023 hPa1023 hPa1023 hPa1022 hPa1022 hPa1023 hPa1023 hPa
Cloud cover0%0%0%0%0%0%4%0%
Heat index16°C (60°F)15°C (60°F)16°C (60°F)16°C (60°F)14°C (57°F)13°C (56°F)14°C (58°F)16°C (61°F)
Dew point8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)6°C (43°F)6°C (42°F)8°C (46°F)9°C (49°F)
Wind
Speed32km/h (20mph)37km/h (23mph)33km/h (21mph)28km/h (18mph)34km/h (21mph)31km/h (19mph)34km/h (21mph)31km/h (19mph)
Gusts40km/h (25mph)46km/h (29mph)42km/h (26mph)36km/h (23mph)38km/h (24mph)37km/h (23mph)38km/h (23mph)41km/h (26mph)
Direction 346°
NNW
359°
N

N

N
353°
N
352°
N
345°
NNW
10°
N
Wind chill16°C (60°F)15°C (60°F)16°C (60°F)16°C (60°F)11°C (52°F)11°C (51°F)12°C (53°F)16°C (61°F)
Waves
Height1.7m (5.6ft)1.7m (5.7ft)1.6m (5.1ft)1.3m (4.3ft)1.1m (3.5ft)1.1m (3.7ft)1.1m (3.6ft)1.1m (3.6ft)
Direction 11°
N
12°
NNE
16°
NNE
20°
NNE
22°
NNE
13°
NNE
12°
NNE
10°
N
Period0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.
Significant height1.6m (5.2ft)1.6m (5.2ft)1.4m (4.6ft)1.2m (3.9ft)1.1m (3.6ft)1.3m (4.3ft)1.1m (3.6ft)1.2m (3.9ft)
Sea water temperature
Water temperature20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)

Sea weather on Wednesday 17 December 2025

On Wednesday 17 December 2025, the sun will rise at 07:24 and will set at 17:05 on the beach(es) of Thirassía. The outside temperature will be a high of 63°F t and a low of 59°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 17.4mph km/h (with gusts up to 23mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature17°C (62°F)17°C (62°F)17°C (62°F)16°C (62°F)16°C (61°F)16°C (60°F)15°C (59°F)16°C (60°F)
Perceived temperature17°C (62°F)17°C (62°F)17°C (62°F)16°C (62°F)16°C (61°F)16°C (60°F)15°C (59°F)16°C (60°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity61%62%63%64%66%68%69%70%
Barometric pressure1023 hPa1023 hPa1024 hPa1025 hPa1024 hPa1024 hPa1025 hPa1026 hPa
Cloud cover0%34%6%7%35%18%16%25%
Heat index17°C (62°F)17°C (62°F)17°C (62°F)16°C (62°F)16°C (61°F)16°C (60°F)15°C (59°F)16°C (60°F)
Dew point9°C (49°F)9°C (49°F)9°C (49°F)10°C (49°F)10°C (50°F)10°C (50°F)10°C (49°F)10°C (51°F)
Wind
Speed28km/h (18mph)25km/h (16mph)22km/h (14mph)21km/h (13mph)25km/h (16mph)25km/h (15mph)21km/h (13mph)22km/h (13mph)
Gusts37km/h (23mph)33km/h (21mph)29km/h (18mph)28km/h (18mph)36km/h (22mph)37km/h (23mph)32km/h (20mph)29km/h (18mph)
Direction
N

N
359°
N

N
354°
N
351°
N
354°
N
346°
NNW
Wind chill17°C (62°F)17°C (62°F)17°C (62°F)16°C (62°F)16°C (61°F)16°C (60°F)15°C (59°F)16°C (60°F)
Waves
Height1.0m (3.4ft)0.8m (2.7ft)0.6m (2.1ft)0.6m (1.9ft)0.6m (1.8ft)0.5m (1.6ft)0.4m (1.4ft)0.4m (1.2ft)
Direction 11°
N
15°
NNE
23°
NNE
34°
NNE
23°
NNE
22°
NNE
23°
NNE
25°
NNE
Period0.1 sec.5.4 sec.6.3 sec.5.3 sec.5.2 sec.4.9 sec.4.9 sec.4.8 sec.
Significant height1.1m (3.6ft)0.9m (3ft)0.6m (2ft)0.6m (2ft)0.7m (2.3ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)
Sea water temperature
Water temperature20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)

Sea weather on Thursday 18 December 2025

On Thursday 18 December 2025, the sun will rise at 07:25 and will set at 17:05 on the beach(es) of Thirassía. The outside temperature will be a high of 61°F t and a low of 58°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 13.1mph km/h (with gusts up to 19.9mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (60°F)15°C (60°F)14°C (58°F)16°C (61°F)
Perceived temperature16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (60°F)15°C (60°F)13°C (55°F)16°C (61°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity71%70%70%70%69%66%66%67%
Barometric pressure1026 hPa1026 hPa1026 hPa1027 hPa1026 hPa1026 hPa1026 hPa1026 hPa
Cloud cover62%37%23%23%18%9%4%8%
Heat index16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (60°F)15°C (60°F)14°C (58°F)16°C (61°F)
Dew point11°C (51°F)10°C (51°F)10°C (51°F)10°C (51°F)10°C (50°F)9°C (49°F)8°C (47°F)10°C (50°F)
Wind
Speed21km/h (13mph)16km/h (10mph)17km/h (10mph)18km/h (11mph)19km/h (12mph)19km/h (12mph)18km/h (11mph)15km/h (9mph)
Gusts27km/h (17mph)21km/h (13mph)22km/h (14mph)24km/h (15mph)28km/h (17mph)30km/h (19mph)32km/h (20mph)21km/h (13mph)
Direction 341°
NNW
351°
N
358°
N
354°
N
343°
NNW
340°
NNW
344°
NNW
340°
NNW
Wind chill16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (60°F)15°C (60°F)13°C (55°F)16°C (61°F)
Waves
Height0.4m (1.3ft)0.5m (1.6ft)0.5m (1.8ft)0.7m (2.2ft)0.8m (2.6ft)0.9m (3.1ft)0.9m (3.0ft)0.9m (2.9ft)
Direction
N
355°
N
346°
NNW
349°
NNW
352°
N
353°
N
354°
N
357°
N
Period4.7 sec.6.2 sec.5.9 sec.4.9 sec.4.6 sec.4.6 sec.4.6 sec.4.6 sec.
Significant height0.6m (2ft)0.6m (2ft)0.6m (2ft)0.8m (2.6ft)0.9m (3ft)1.0m (3.3ft)1.0m (3.3ft)1.1m (3.6ft)
Sea water temperature
Water temperature20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)

Sea weather on Friday 19 December 2025

On Friday 19 December 2025, the sun will rise at 07:25 and will set at 17:06 on the beach(es) of Thirassía. The outside temperature will be a high of 61°F t and a low of 58°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 11.2mph km/h (with gusts up to 21.1mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)14°C (57°F)15°C (60°F)15°C (60°F)16°C (61°F)
Perceived temperature16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)13°C (55°F)15°C (60°F)15°C (60°F)16°C (61°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity68%68%68%67%68%67%67%68%
Barometric pressure1026 hPa1025 hPa1025 hPa1025 hPa1023 hPa1022 hPa1023 hPa1022 hPa
Cloud cover0%7%2%4%0%8%14%18%
Heat index16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)14°C (57°F)15°C (60°F)15°C (60°F)16°C (61°F)
Dew point10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)8°C (47°F)9°C (48°F)9°C (48°F)10°C (50°F)
Wind
Speed18km/h (11mph)18km/h (11mph)14km/h (9mph)13km/h (8mph)18km/h (11mph)16km/h (10mph)8km/h (5mph)6km/h (4mph)
Gusts24km/h (15mph)24km/h (15mph)19km/h (12mph)17km/h (11mph)34km/h (21mph)26km/h (16mph)13km/h (8mph)9km/h (6mph)
Direction 345°
NNW
338°
NNW
358°
N
339°
NNW
340°
NNW
356°
N
358°
N
333°
NNW
Wind chill16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)13°C (55°F)15°C (60°F)15°C (60°F)16°C (61°F)
Waves
Height0.9m (3.1ft)0.9m (3.1ft)0.8m (2.6ft)0.6m (2.0ft)0.4m (1.5ft)0.4m (1.2ft)0.3m (1.0ft)0.2m (0.8ft)
Direction 353°
N
351°
N
353°
N
353°
N
356°
N
355°
N
358°
N
355°
N
Period4.6 sec.4.6 sec.4.6 sec.4.1 sec.3.6 sec.4.9 sec.4.9 sec.2.9 sec.
Significant height1.2m (3.9ft)1.1m (3.6ft)0.9m (3ft)0.6m (2ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.2m (0.7ft)
Sea water temperature
Water temperature20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)

Sea weather on Saturday 20 December 2025

On Saturday 20 December 2025, the sun will rise at 07:26 and will set at 17:06 on the beach(es) of Thirassía. The outside temperature will be a high of 65°F t and a low of 61°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 15.5mph km/h (with gusts up to 23.6mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature16°C (61°F)16°C (61°F)16°C (62°F)17°C (62°F)16°C (61°F)16°C (61°F)17°C (62°F)18°C (64°F)
Perceived temperature16°C (61°F)16°C (61°F)16°C (62°F)17°C (62°F)16°C (61°F)16°C (61°F)17°C (62°F)18°C (64°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity68%68%68%69%69%68%72%73%
Barometric pressure1021 hPa1019 hPa1019 hPa1020 hPa1017 hPa1017 hPa1016 hPa1016 hPa
Cloud cover85%23%86%92%28%8%78%79%
Heat index16°C (61°F)16°C (61°F)16°C (62°F)17°C (62°F)16°C (61°F)16°C (61°F)17°C (62°F)18°C (64°F)
Dew point10°C (50°F)10°C (51°F)10°C (51°F)11°C (51°F)11°C (51°F)10°C (50°F)12°C (53°F)13°C (55°F)
Wind
Speed5km/h (3mph)5km/h (3mph)8km/h (5mph)10km/h (6mph)16km/h (10mph)18km/h (11mph)19km/h (12mph)25km/h (15mph)
Gusts6km/h (4mph)7km/h (4mph)11km/h (7mph)13km/h (8mph)23km/h (15mph)29km/h (18mph)32km/h (20mph)38km/h (24mph)
Direction 24°
NNE
77°
ENE
83°
E
86°
E
91°
E
112°
ESE
141°
SE
186°
S
Wind chill16°C (61°F)16°C (61°F)16°C (62°F)17°C (62°F)16°C (61°F)16°C (61°F)17°C (62°F)18°C (64°F)
Waves
Height0.2m (0.7ft)0.2m (0.6ft)0.1m (0.5ft)0.1m (0.5ft)0.1m (0.5ft)0.1m (0.4ft)0.6m (1.8ft)0.2m (0.8ft)
Direction 328°
NNW
329°
NNW
332°
NNW
335°
NNW
338°
NNW
341°
NNW
343°
NNW
346°
NNW
Period5.0 sec.5.0 sec.5.0 sec.5.1 sec.5.2 sec.5.1 sec.5.1 sec.5.1 sec.
Significant height0.2m (0.7ft)0.2m (0.7ft)0.3m (1ft)0.3m (1ft)0.2m (0.7ft)0.1m (0.3ft)0.2m (0.7ft)0.2m (0.7ft)
Sea water temperature
Water temperature20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)

Sea weather on Sunday 21 December 2025

On Sunday 21 December 2025, the sun will rise at 07:26 and will set at 17:07 on the beach(es) of Thirassía. The outside temperature will be a high of 65°F t and a low of 61°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 14.3mph km/h (with gusts up to 19.9mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature18°C (64°F)18°C (64°F)17°C (63°F)17°C (63°F)16°C (61°F)16°C (61°F)17°C (62°F)17°C (63°F)
Perceived temperature18°C (64°F)18°C (64°F)17°C (63°F)17°C (63°F)16°C (61°F)16°C (61°F)17°C (62°F)17°C (63°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity67%69%66%66%66%66%66%67%
Barometric pressure1015 hPa1015 hPa1016 hPa1017 hPa1016 hPa1016 hPa1017 hPa1017 hPa
Cloud cover14%88%9%88%9%9%21%53%
Heat index18°C (64°F)18°C (64°F)17°C (63°F)17°C (63°F)16°C (61°F)16°C (61°F)17°C (62°F)17°C (63°F)
Dew point12°C (53°F)12°C (53°F)11°C (52°F)11°C (51°F)10°C (50°F)10°C (50°F)10°C (50°F)11°C (52°F)
Wind
Speed23km/h (15mph)18km/h (11mph)12km/h (7mph)6km/h (4mph)2km/h (1mph)5km/h (3mph)10km/h (6mph)12km/h (7mph)
Gusts32km/h (20mph)25km/h (16mph)16km/h (10mph)8km/h (5mph)3km/h (2mph)8km/h (5mph)15km/h (10mph)17km/h (10mph)
Direction 235°
SW
250°
WSW
322°
NW
315°
NW
313°
NW
25°
NNE
51°
NE
70°
ENE
Wind chill18°C (64°F)18°C (64°F)17°C (63°F)17°C (63°F)16°C (61°F)16°C (61°F)17°C (62°F)17°C (63°F)
Waves
Height0.1m (0.5ft)0.2m (0.6ft)0.2m (0.7ft)0.2m (0.8ft)0.2m (0.8ft)0.3m (0.9ft)0.3m (1.0ft)0.4m (1.4ft)
Direction 248°
WSW
246°
WSW
246°
WSW
244°
WSW
241°
WSW
238°
WSW
238°
WSW
147°
SSE
Period3.9 sec.7.5 sec.7.4 sec.7.3 sec.6.9 sec.6.6 sec.6.2 sec.5.8 sec.
Significant height0.1m (0.3ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.3m (1ft)0.5m (1.6ft)0.5m (1.6ft)0.7m (2.3ft)
Sea water temperature
Water temperature20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)20°C (67°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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