Sea weather in Florianopolis (Santa Catarina Island) in Brazil All the beach weather in Florianopolis (Santa Catarina Island)

All the essential weather information for enjoying the beach in Florianopolis (Santa Catarina Island) in Brazil, 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 Florianopolis (Santa Catarina Island) over the next 7 days?

Discover the best moment to go to the beach in Florianopolis (Santa Catarina Island) in Brazil this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Florianopolis (Santa Catarina Island). 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 202568°F to 83°Frecommended
Tuesday 16 December 202567°F to 74°Fdiscouraged
Wednesday 17 December 202563°F to 72°Frecommended
Thursday 18 December 202565°F to 76°Fdiscouraged
Friday 19 December 202563°F to 76°Frecommended
Saturday 20 December 202565°F to 77°Fdiscouraged
Sunday 21 December 202570°F to 81°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Florianopolis (Santa Catarina Island)

Sea weather on Monday 15 December 2025

On Monday 15 December 2025, the sun will rise at 05:13 and will set at 19:06 on the beach(es) of Florianopolis (Santa Catarina Island). The outside temperature will be a high of 83°F t and a low of 68°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 10.6mph km/h (with gusts up to 11.8mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature21°C (70°F)20°C (69°F)20°C (69°F)26°C (79°F)26°C (78°F)27°C (80°F)24°C (75°F)23°C (73°F)
Perceived temperature21°C (70°F)20°C (69°F)20°C (69°F)28°C (82°F)27°C (80°F)29°C (84°F)26°C (79°F)25°C (78°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity94%95%94%69%59%70%84%93%
Barometric pressure1009 hPa1008 hPa1008 hPa1008 hPa1006 hPa1004 hPa1004 hPa1005 hPa
Cloud cover70%39%28%8%6%21%38%31%
Heat index24°C (75°F)20°C (69°F)20°C (69°F)28°C (82°F)27°C (80°F)29°C (84°F)26°C (79°F)25°C (78°F)
Dew point20°C (68°F)19°C (67°F)19°C (67°F)20°C (68°F)17°C (63°F)21°C (70°F)21°C (70°F)22°C (71°F)
Wind
Speed4km/h (2mph)6km/h (4mph)7km/h (4mph)10km/h (6mph)17km/h (10mph)13km/h (8mph)12km/h (8mph)10km/h (6mph)
Gusts7km/h (4mph)10km/h (6mph)12km/h (7mph)12km/h (8mph)17km/h (10mph)19km/h (12mph)19km/h (12mph)17km/h (11mph)
Direction 334°
NNW
329°
NNW
338°
NNW
18°
NNE
51°
NE
65°
ENE
22°
NNE
349°
N
Wind chill21°C (70°F)20°C (69°F)20°C (69°F)26°C (79°F)26°C (78°F)27°C (80°F)24°C (75°F)23°C (73°F)
Waves
Height0.9m (3.0ft)0.9m (3.0ft)0.9m (2.9ft)0.9m (2.8ft)0.9m (2.9ft)1.0m (3.2ft)0.9m (2.9ft)0.8m (2.8ft)
Direction 122°
ESE
120°
ESE
111°
ESE
112°
ESE
113°
ESE
126°
SE
125°
SE
122°
ESE
Period6.6 sec.6.1 sec.6.0 sec.5.7 sec.6.6 sec.6.6 sec.6.3 sec.6.4 sec.
Significant height0.1m (0.3ft)0.1m (0.3ft)0.2m (0.7ft)0.3m (1ft)0.7m (2.3ft)0.7m (2.3ft)0.3m (1ft)0.3m (1ft)
Sea water temperature
Water temperature21°C (70°F)21°C (70°F)21°C (70°F)21°C (70°F)21°C (70°F)21°C (70°F)21°C (70°F)21°C (70°F)

Sea weather on Tuesday 16 December 2025

On Tuesday 16 December 2025, the sun will rise at 05:14 and will set at 19:07 on the beach(es) of Florianopolis (Santa Catarina Island). The outside temperature will be a high of 74°F t and a low of 67°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 16.8mph km/h (with gusts up to 23.6mph). Wave height will be up to 5.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature23°C (74°F)23°C (73°F)22°C (72°F)23°C (73°F)21°C (69°F)21°C (70°F)21°C (70°F)19°C (67°F)
Perceived temperature25°C (78°F)25°C (77°F)25°C (76°F)25°C (77°F)21°C (69°F)21°C (70°F)21°C (70°F)19°C (67°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity93%91%92%85%84%75%72%76%
Barometric pressure1006 hPa1003 hPa1006 hPa1008 hPa1010 hPa1010 hPa1011 hPa1015 hPa
Cloud cover71%42%37%92%100%40%84%86%
Heat index25°C (78°F)25°C (77°F)25°C (76°F)25°C (77°F)21°C (69°F)21°C (70°F)21°C (70°F)19°C (67°F)
Dew point22°C (71°F)21°C (70°F)21°C (70°F)20°C (68°F)18°C (64°F)16°C (61°F)16°C (60°F)15°C (59°F)
Wind
Speed12km/h (7mph)8km/h (5mph)15km/h (9mph)24km/h (15mph)27km/h (17mph)25km/h (15mph)23km/h (14mph)19km/h (12mph)
Gusts21km/h (13mph)15km/h (9mph)24km/h (15mph)31km/h (19mph)38km/h (23mph)34km/h (21mph)35km/h (22mph)32km/h (20mph)
Direction 345°
NNW
268°
W
179°
S
183°
S
193°
SSW
198°
SSW
179°
S
191°
SSW
Wind chill23°C (74°F)23°C (73°F)22°C (72°F)23°C (73°F)21°C (69°F)21°C (70°F)21°C (70°F)19°C (67°F)
Waves
Height0.8m (2.7ft)0.8m (2.7ft)0.8m (2.6ft)1.0m (3.3ft)1.4m (4.7ft)1.5m (5.0ft)1.6m (5.2ft)1.5m (5.0ft)
Direction 110°
ESE
109°
ESE
110°
ESE
95°
E
154°
SSE
153°
SSE
154°
SSE
153°
SSE
Period6.1 sec.5.7 sec.5.4 sec.5.8 sec.6.2 sec.7.6 sec.8.1 sec.8.1 sec.
Significant height0.3m (1ft)0.3m (1ft)0.3m (1ft)1.0m (3.3ft)1.2m (3.9ft)1.1m (3.6ft)1.0m (3.3ft)0.8m (2.6ft)
Sea water temperature
Water temperature21°C (70°F)21°C (70°F)21°C (70°F)21°C (70°F)21°C (70°F)21°C (70°F)21°C (70°F)21°C (70°F)

Sea weather on Wednesday 17 December 2025

On Wednesday 17 December 2025, the sun will rise at 05:14 and will set at 19:07 on the beach(es) of Florianopolis (Santa Catarina Island). The outside temperature will be a high of 72°F t and a low of 63°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 8.7mph km/h (with gusts up to 15.5mph). Wave height will be up to 4.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (65°F)18°C (64°F)17°C (63°F)21°C (70°F)22°C (71°F)21°C (71°F)20°C (68°F)19°C (66°F)
Perceived temperature19°C (65°F)18°C (64°F)17°C (63°F)21°C (70°F)22°C (71°F)21°C (71°F)20°C (68°F)19°C (66°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity80%80%80%62%59%57%62%66%
Barometric pressure1015 hPa1015 hPa1016 hPa1017 hPa1017 hPa1015 hPa1015 hPa1017 hPa
Cloud cover89%77%71%78%52%63%90%76%
Heat index19°C (65°F)18°C (64°F)17°C (63°F)24°C (76°F)25°C (76°F)24°C (76°F)20°C (68°F)19°C (66°F)
Dew point15°C (59°F)14°C (57°F)14°C (57°F)14°C (56°F)13°C (56°F)13°C (55°F)12°C (54°F)12°C (54°F)
Wind
Speed14km/h (9mph)12km/h (7mph)9km/h (6mph)10km/h (6mph)14km/h (9mph)13km/h (8mph)8km/h (5mph)5km/h (3mph)
Gusts25km/h (15mph)21km/h (13mph)16km/h (10mph)12km/h (7mph)16km/h (10mph)16km/h (10mph)12km/h (7mph)7km/h (5mph)
Direction 205°
SSW
213°
SSW
227°
SW
172°
S
141°
SE
124°
ESE
122°
ESE
86°
E
Wind chill19°C (65°F)18°C (64°F)17°C (63°F)21°C (70°F)22°C (71°F)21°C (71°F)20°C (68°F)19°C (66°F)
Waves
Height1.4m (4.7ft)1.3m (4.4ft)1.3m (4.2ft)1.3m (4.4ft)1.4m (4.5ft)1.3m (4.4ft)1.2m (4.0ft)1.1m (3.6ft)
Direction 150°
SSE
148°
SSE
137°
SE
138°
SE
140°
SE
139°
SE
136°
SE
133°
SE
Period9.0 sec.7.3 sec.6.8 sec.8.8 sec.9.1 sec.9.1 sec.9.0 sec.8.9 sec.
Significant height0.6m (2ft)0.5m (1.6ft)0.4m (1.3ft)0.3m (1ft)0.6m (2ft)0.5m (1.6ft)0.3m (1ft)0.2m (0.7ft)
Sea water temperature
Water temperature23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)

Sea weather on Thursday 18 December 2025

On Thursday 18 December 2025, the sun will rise at 05:15 and will set at 19:08 on the beach(es) of Florianopolis (Santa Catarina Island). The outside temperature will be a high of 76°F t and a low of 65°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 13.7mph km/h (with gusts up to 18mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (66°F)18°C (65°F)18°C (64°F)23°C (73°F)22°C (72°F)22°C (71°F)21°C (69°F)19°C (66°F)
Perceived temperature19°C (66°F)18°C (65°F)18°C (64°F)25°C (77°F)24°C (76°F)22°C (71°F)21°C (69°F)19°C (66°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity69%73%76%56%52%58%68%80%
Barometric pressure1016 hPa1014 hPa1015 hPa1015 hPa1013 hPa1012 hPa1012 hPa1014 hPa
Cloud cover83%70%0%0%0%0%9%6%
Heat index19°C (66°F)18°C (65°F)18°C (64°F)25°C (77°F)24°C (76°F)25°C (76°F)21°C (69°F)19°C (66°F)
Dew point13°C (55°F)13°C (56°F)14°C (57°F)14°C (57°F)12°C (53°F)13°C (56°F)15°C (58°F)15°C (59°F)
Wind
Speed6km/h (4mph)8km/h (5mph)9km/h (6mph)13km/h (8mph)20km/h (13mph)22km/h (14mph)18km/h (11mph)13km/h (8mph)
Gusts10km/h (6mph)12km/h (8mph)15km/h (9mph)15km/h (10mph)26km/h (16mph)28km/h (17mph)29km/h (18mph)23km/h (14mph)
Direction 16°
NNE
340°
NNW
343°
NNW

N
43°
NE
41°
NE
28°
NNE

N
Wind chill19°C (66°F)18°C (65°F)18°C (64°F)23°C (73°F)22°C (72°F)22°C (71°F)21°C (69°F)19°C (66°F)
Waves
Height1.0m (3.3ft)0.9m (3.1ft)0.9m (3.0ft)0.9m (2.9ft)0.9m (3.0ft)1.0m (3.1ft)0.9m (3.0ft)0.8m (2.8ft)
Direction 128°
SE
125°
SE
126°
SE
126°
SE
125°
SE
124°
SE
124°
SE
124°
SE
Period8.8 sec.8.5 sec.8.6 sec.8.6 sec.8.9 sec.8.9 sec.8.5 sec.10.3 sec.
Significant height0.2m (0.7ft)0.3m (1ft)0.3m (1ft)0.4m (1.3ft)0.7m (2.3ft)0.8m (2.6ft)0.6m (2ft)0.5m (1.6ft)
Sea water temperature
Water temperature23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)

Sea weather on Friday 19 December 2025

On Friday 19 December 2025, the sun will rise at 05:15 and will set at 19:08 on the beach(es) of Florianopolis (Santa Catarina Island). The outside temperature will be a high of 76°F t and a low of 63°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 12.4mph km/h (with gusts up to 21.8mph). Wave height will be up to 2.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature18°C (64°F)17°C (63°F)17°C (63°F)24°C (74°F)23°C (74°F)24°C (74°F)19°C (66°F)19°C (66°F)
Perceived temperature18°C (64°F)17°C (63°F)17°C (63°F)25°C (77°F)25°C (77°F)25°C (77°F)19°C (66°F)19°C (66°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%85%85%57%47%53%67%85%
Barometric pressure1015 hPa1013 hPa1014 hPa1013 hPa1012 hPa1011 hPa1012 hPa1014 hPa
Cloud cover4%3%4%3%2%1%0%27%
Heat index18°C (64°F)17°C (63°F)17°C (63°F)25°C (77°F)25°C (77°F)25°C (77°F)19°C (66°F)19°C (66°F)
Dew point15°C (59°F)15°C (58°F)14°C (58°F)14°C (58°F)11°C (53°F)14°C (56°F)13°C (55°F)16°C (62°F)
Wind
Speed12km/h (7mph)11km/h (7mph)11km/h (7mph)16km/h (10mph)19km/h (12mph)20km/h (12mph)16km/h (10mph)12km/h (7mph)
Gusts21km/h (13mph)21km/h (13mph)20km/h (12mph)18km/h (11mph)23km/h (15mph)35km/h (22mph)34km/h (21mph)21km/h (13mph)
Direction 347°
NNW
342°
NNW
341°
NNW

N
40°
NE
41°
NE
33°
NNE

N
Wind chill18°C (64°F)17°C (63°F)17°C (63°F)24°C (74°F)23°C (74°F)24°C (74°F)19°C (66°F)19°C (66°F)
Waves
Height0.8m (2.6ft)0.8m (2.5ft)0.7m (2.4ft)0.7m (2.4ft)0.7m (2.5ft)0.8m (2.5ft)0.8m (2.6ft)0.8m (2.6ft)
Direction 123°
ESE
119°
ESE
112°
ESE
103°
ESE
99°
E
95°
E
91°
E
83°
E
Period4.5 sec.4.9 sec.5.1 sec.5.1 sec.7.4 sec.7.4 sec.7.5 sec.8.0 sec.
Significant height0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)0.6m (2ft)0.5m (1.6ft)0.4m (1.3ft)0.2m (0.7ft)
Sea water temperature
Water temperature23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)

Sea weather on Saturday 20 December 2025

On Saturday 20 December 2025, the sun will rise at 05:15 and will set at 19:09 on the beach(es) of Florianopolis (Santa Catarina Island). The outside temperature will be a high of 77°F t and a low of 65°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 16.2mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (66°F)18°C (65°F)18°C (64°F)24°C (75°F)24°C (75°F)25°C (76°F)20°C (69°F)21°C (70°F)
Perceived temperature19°C (66°F)18°C (65°F)18°C (64°F)25°C (78°F)25°C (77°F)26°C (79°F)20°C (69°F)21°C (70°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity85%85%85%60%54%59%74%92%
Barometric pressure1014 hPa1013 hPa1014 hPa1014 hPa1012 hPa1010 hPa1010 hPa1012 hPa
Cloud cover34%9%0%0%0%0%2%49%
Heat index19°C (66°F)18°C (65°F)18°C (64°F)25°C (78°F)25°C (77°F)26°C (79°F)20°C (69°F)24°C (75°F)
Dew point16°C (61°F)16°C (60°F)15°C (59°F)16°C (60°F)14°C (57°F)16°C (61°F)16°C (60°F)20°C (67°F)
Wind
Speed13km/h (8mph)12km/h (8mph)10km/h (6mph)14km/h (9mph)20km/h (12mph)23km/h (14mph)21km/h (13mph)15km/h (9mph)
Gusts21km/h (13mph)22km/h (14mph)19km/h (12mph)17km/h (10mph)26km/h (16mph)24km/h (15mph)23km/h (14mph)25km/h (16mph)
Direction 351°
N
348°
NNW
338°
NNW

N
32°
NNE
36°
NE
28°
NNE
356°
N
Wind chill19°C (66°F)18°C (65°F)18°C (64°F)24°C (75°F)24°C (75°F)25°C (76°F)20°C (69°F)21°C (70°F)
Waves
Height0.8m (2.7ft)0.9m (3.0ft)1.0m (3.1ft)0.9m (3.1ft)1.0m (3.2ft)1.0m (3.4ft)1.0m (3.4ft)1.0m (3.1ft)
Direction 83°
E
85°
E
87°
E
87°
E
88°
E
91°
E
91°
E
90°
E
Period8.0 sec.8.4 sec.8.9 sec.8.4 sec.8.1 sec.7.7 sec.7.5 sec.7.5 sec.
Significant height0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.6m (2ft)0.8m (2.6ft)0.6m (2ft)0.5m (1.6ft)
Sea water temperature
Water temperature23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)

Sea weather on Sunday 21 December 2025

On Sunday 21 December 2025, the sun will rise at 05:16 and will set at 19:09 on the beach(es) of Florianopolis (Santa Catarina Island). The outside temperature will be a high of 81°F t and a low of 70°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 18mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature22°C (71°F)22°C (71°F)21°C (70°F)27°C (80°F)26°C (78°F)26°C (78°F)25°C (78°F)23°C (73°F)
Perceived temperature22°C (71°F)22°C (71°F)21°C (70°F)29°C (83°F)27°C (80°F)27°C (81°F)28°C (82°F)25°C (78°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity91%93%93%68%60%67%79%92%
Barometric pressure1012 hPa1011 hPa1011 hPa1011 hPa1010 hPa1008 hPa1008 hPa1010 hPa
Cloud cover61%84%18%4%7%8%29%36%
Heat index24°C (76°F)24°C (76°F)24°C (76°F)29°C (83°F)27°C (80°F)27°C (81°F)28°C (82°F)25°C (78°F)
Dew point20°C (68°F)21°C (69°F)20°C (68°F)20°C (68°F)17°C (63°F)19°C (67°F)21°C (71°F)22°C (71°F)
Wind
Speed14km/h (9mph)13km/h (8mph)11km/h (7mph)17km/h (10mph)23km/h (14mph)23km/h (15mph)17km/h (11mph)15km/h (10mph)
Gusts22km/h (13mph)21km/h (13mph)20km/h (12mph)20km/h (13mph)29km/h (18mph)28km/h (18mph)24km/h (15mph)25km/h (16mph)
Direction 351°
N
355°
N
351°
N
12°
NNE
36°
NE
40°
NE
24°
NNE

N
Wind chill22°C (71°F)22°C (71°F)21°C (70°F)27°C (80°F)26°C (78°F)26°C (78°F)25°C (78°F)23°C (73°F)
Waves
Height1.0m (3.3ft)1.0m (3.3ft)1.0m (3.4ft)1.1m (3.7ft)1.3m (4.2ft)1.3m (4.4ft)1.3m (4.2ft)1.2m (3.9ft)
Direction 88°
E
88°
E
89°
E
89°
E
89°
E
87°
E
85°
E
82°
E
Period7.6 sec.7.6 sec.7.6 sec.8.1 sec.12.0 sec.11.7 sec.8.2 sec.8.2 sec.
Significant height0.6m (2ft)0.5m (1.6ft)0.4m (1.3ft)0.6m (2ft)1.0m (3.3ft)1.0m (3.3ft)0.6m (2ft)0.4m (1.3ft)
Sea water temperature
Water temperature21°C (70°F)21°C (70°F)21°C (70°F)21°C (70°F)21°C (70°F)21°C (70°F)21°C (70°F)21°C (70°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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