Sea weather in Cayenne in French Guyana All the beach weather in Cayenne

All the essential weather information for enjoying the beach in Cayenne in French Guyana, 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 Cayenne over the next 7 days?

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

Date Outside temp. Our opinion
Sunday 14 December 202579°F to 81°Fdiscouraged
Monday 15 December 202579°F to 81°Fdiscouraged
Tuesday 16 December 202579°F to 81°Fdiscouraged
Wednesday 17 December 202579°F to 81°Fdiscouraged
Thursday 18 December 202579°F to 81°Fdiscouraged
Friday 19 December 202576°F to 81°Fdiscouraged
Saturday 20 December 202579°F to 81°Frecommended

Sea Weather: Your daily and hourly sea weather in Cayenne

Sea weather on Sunday 14 December 2025

On Sunday 14 December 2025, the sun will rise at 06:28 and will set at 18:19 on the beach(es) of Cayenne. The outside temperature will be a high of 81°F t and a low of 79°F. Precipitation is in the forecast (0.2in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 21.1mph km/h (with gusts up to 30.5mph). Wave height will be up to 5.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature26°C (80°F)26°C (79°F)27°C (80°F)27°C (80°F)26°C (79°F)26°C (79°F)26°C (79°F)27°C (80°F)
Perceived temperature29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (84°F)29°C (84°F)29°C (85°F)30°C (86°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%82%80%79%79%81%83%82%
Barometric pressure1012 hPa1010 hPa1011 hPa1013 hPa1013 hPa1010 hPa1010 hPa1012 hPa
Cloud cover100%100%100%100%71%71%94%55%
Heat index29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (84°F)29°C (84°F)29°C (85°F)30°C (86°F)
Dew point23°C (74°F)23°C (73°F)23°C (73°F)23°C (73°F)22°C (72°F)23°C (73°F)23°C (74°F)23°C (74°F)
Wind
Speed32km/h (20mph)34km/h (21mph)33km/h (21mph)31km/h (19mph)29km/h (18mph)27km/h (17mph)29km/h (18mph)28km/h (18mph)
Gusts38km/h (24mph)41km/h (25mph)49km/h (31mph)33km/h (20mph)43km/h (27mph)44km/h (28mph)44km/h (27mph)34km/h (21mph)
Direction 61°
ENE
60°
ENE
63°
ENE
62°
ENE
58°
ENE
56°
ENE
56°
ENE
62°
ENE
Wind chill26°C (80°F)26°C (79°F)27°C (80°F)27°C (80°F)26°C (79°F)26°C (79°F)26°C (79°F)27°C (80°F)
Waves
Height1.7m (5.5ft)1.7m (5.5ft)1.7m (5.5ft)1.7m (5.5ft)1.6m (5.4ft)1.6m (5.2ft)1.5m (5.1ft)1.5m (5.0ft)
Direction 48°
NE
49°
NE
49°
NE
49°
NE
49°
NE
49°
NE
48°
NE
48°
NE
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 height0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.9m (3ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather on Monday 15 December 2025

On Monday 15 December 2025, the sun will rise at 06:29 and will set at 18:19 on the beach(es) of Cayenne. The outside temperature will be a high of 81°F t and a low of 79°F. Precipitation is in the forecast (0.3in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 17.4mph km/h (with gusts up to 28.6mph). Wave height will be up to 4.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature27°C (80°F)26°C (79°F)26°C (80°F)27°C (80°F)26°C (79°F)26°C (79°F)26°C (79°F)27°C (80°F)
Perceived temperature30°C (85°F)29°C (85°F)30°C (85°F)30°C (86°F)29°C (84°F)29°C (84°F)29°C (85°F)30°C (86°F)
Precipitation0in0.1in0in0in0in0in0.1in0in
Humidity83%84%83%83%84%84%86%84%
Barometric pressure1011 hPa1009 hPa1010 hPa1013 hPa1012 hPa1010 hPa1010 hPa1012 hPa
Cloud cover84%80%96%70%66%76%76%82%
Heat index30°C (85°F)29°C (85°F)30°C (85°F)30°C (86°F)29°C (84°F)29°C (84°F)29°C (85°F)30°C (86°F)
Dew point23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (73°F)23°C (74°F)24°C (74°F)24°C (75°F)
Wind
Speed28km/h (17mph)28km/h (18mph)28km/h (18mph)27km/h (17mph)26km/h (16mph)24km/h (15mph)25km/h (16mph)28km/h (17mph)
Gusts34km/h (21mph)35km/h (22mph)46km/h (29mph)33km/h (21mph)40km/h (25mph)24km/h (15mph)26km/h (16mph)33km/h (20mph)
Direction 65°
ENE
65°
ENE
66°
ENE
74°
ENE
73°
ENE
74°
ENE
74°
ENE
71°
ENE
Wind chill27°C (80°F)26°C (79°F)26°C (80°F)27°C (80°F)26°C (79°F)26°C (79°F)26°C (79°F)27°C (80°F)
Waves
Height1.5m (5.0ft)1.5m (4.9ft)1.5m (4.8ft)1.4m (4.7ft)1.4m (4.6ft)1.4m (4.5ft)1.3m (4.4ft)1.3m (4.3ft)
Direction 48°
NE
48°
NE
47°
NE
47°
NE
47°
NE
46°
NE
46°
NE
46°
NE
Period0.1 sec.0.1 sec.0.1 sec.0.1 sec.16.2 sec.15.9 sec.17.1 sec.17.5 sec.
Significant height0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather on Tuesday 16 December 2025

On Tuesday 16 December 2025, the sun will rise at 06:29 and will set at 18:20 on the beach(es) of Cayenne. The outside temperature will be a high of 81°F t and a low of 79°F. Precipitation is in the forecast (0.3in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 16.8mph km/h (with gusts up to 24.9mph). Wave height will be up to 4.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature27°C (80°F)26°C (80°F)27°C (80°F)26°C (79°F)26°C (78°F)26°C (79°F)26°C (80°F)26°C (79°F)
Perceived temperature30°C (86°F)30°C (85°F)30°C (86°F)30°C (85°F)29°C (83°F)29°C (84°F)30°C (85°F)29°C (85°F)
Precipitation0in0in0in0.1in0.1in0in0in0in
Humidity85%85%84%85%86%84%84%85%
Barometric pressure1011 hPa1009 hPa1010 hPa1013 hPa1012 hPa1009 hPa1010 hPa1012 hPa
Cloud cover74%85%89%74%56%91%79%85%
Heat index30°C (86°F)30°C (85°F)30°C (86°F)30°C (85°F)29°C (83°F)29°C (84°F)30°C (85°F)29°C (85°F)
Dew point24°C (75°F)24°C (74°F)24°C (74°F)24°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)
Wind
Speed26km/h (16mph)26km/h (16mph)25km/h (16mph)24km/h (15mph)24km/h (15mph)23km/h (15mph)25km/h (16mph)27km/h (17mph)
Gusts39km/h (24mph)31km/h (19mph)37km/h (23mph)28km/h (18mph)25km/h (15mph)29km/h (18mph)40km/h (25mph)31km/h (19mph)
Direction 67°
ENE
68°
ENE
69°
ENE
68°
ENE
70°
ENE
62°
ENE
64°
ENE
66°
ENE
Wind chill27°C (80°F)26°C (80°F)27°C (80°F)26°C (79°F)26°C (78°F)26°C (79°F)26°C (80°F)26°C (79°F)
Waves
Height1.3m (4.4ft)1.3m (4.3ft)1.4m (4.5ft)1.4m (4.5ft)1.4m (4.6ft)1.4m (4.7ft)1.4m (4.6ft)1.4m (4.6ft)
Direction 46°
NE
46°
NE
46°
NE
45°
NE
45°
NE
41°
NE
42°
NE
42°
NE
Period17.5 sec.17.4 sec.17.4 sec.10.9 sec.10.9 sec.15.9 sec.15.7 sec.14.8 sec.
Significant height0.7m (2.3ft)0.7m (2.3ft)0.8m (2.6ft)0.9m (3ft)0.9m (3ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather on Wednesday 17 December 2025

On Wednesday 17 December 2025, the sun will rise at 06:30 and will set at 18:20 on the beach(es) of Cayenne. The outside temperature will be a high of 81°F t and a low of 79°F. Precipitation is in the forecast (0.3in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 18.6mph km/h (with gusts up to 26.1mph). Wave height will be up to 4.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (78°F)27°C (80°F)27°C (80°F)27°C (80°F)
Perceived temperature29°C (85°F)29°C (84°F)29°C (84°F)29°C (84°F)28°C (83°F)29°C (85°F)30°C (85°F)30°C (85°F)
Precipitation0in0in0.1in0.1in0.1in0in0in0in
Humidity86%85%84%83%83%79%79%81%
Barometric pressure1011 hPa1009 hPa1010 hPa1012 hPa1012 hPa1009 hPa1009 hPa1011 hPa
Cloud cover83%87%100%73%58%66%78%23%
Heat index29°C (85°F)29°C (84°F)29°C (84°F)29°C (84°F)28°C (83°F)29°C (85°F)30°C (85°F)30°C (85°F)
Dew point24°C (74°F)23°C (74°F)23°C (74°F)23°C (73°F)23°C (73°F)23°C (73°F)23°C (73°F)23°C (74°F)
Wind
Speed26km/h (16mph)24km/h (15mph)26km/h (16mph)25km/h (16mph)28km/h (17mph)27km/h (17mph)25km/h (16mph)30km/h (19mph)
Gusts38km/h (24mph)25km/h (15mph)29km/h (18mph)26km/h (16mph)31km/h (19mph)31km/h (19mph)35km/h (22mph)42km/h (26mph)
Direction 59°
ENE
60°
ENE
59°
ENE
57°
ENE
58°
ENE
59°
ENE
62°
ENE
67°
ENE
Wind chill26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (78°F)27°C (80°F)27°C (80°F)27°C (80°F)
Waves
Height1.5m (4.9ft)1.5m (5.0ft)1.5m (5.1ft)1.5m (5.0ft)1.5m (4.9ft)1.4m (4.8ft)1.4m (4.5ft)1.3m (4.4ft)
Direction 42°
NE
42°
NE
43°
NE
43°
NE
44°
NE
45°
NE
45°
NE
45°
NE
Period14.3 sec.14.3 sec.14.3 sec.14.3 sec.14.3 sec.14.3 sec.14.3 sec.14.3 sec.
Significant height0.9m (3ft)0.8m (2.6ft)0.6m (2ft)0.7m (2.3ft)0.7m (2.3ft)0.6m (2ft)0.6m (2ft)0.7m (2.3ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather on Thursday 18 December 2025

On Thursday 18 December 2025, the sun will rise at 06:30 and will set at 18:21 on the beach(es) of Cayenne. The outside temperature will be a high of 81°F t and a low of 79°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 23.6mph). Wave height will be up to 4.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)26°C (79°F)26°C (79°F)27°C (80°F)27°C (80°F)
Perceived temperature29°C (85°F)29°C (84°F)29°C (84°F)29°C (85°F)28°C (83°F)29°C (84°F)29°C (85°F)29°C (85°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity78%76%76%78%77%78%79%76%
Barometric pressure1010 hPa1009 hPa1009 hPa1012 hPa1011 hPa1009 hPa1009 hPa1011 hPa
Cloud cover51%77%70%39%87%60%77%76%
Heat index29°C (85°F)29°C (84°F)29°C (84°F)29°C (85°F)28°C (83°F)29°C (84°F)29°C (85°F)29°C (85°F)
Dew point22°C (72°F)22°C (72°F)22°C (72°F)22°C (72°F)22°C (71°F)22°C (72°F)23°C (73°F)22°C (72°F)
Wind
Speed28km/h (17mph)27km/h (17mph)24km/h (15mph)22km/h (14mph)20km/h (13mph)21km/h (13mph)26km/h (16mph)24km/h (15mph)
Gusts38km/h (23mph)37km/h (23mph)34km/h (21mph)30km/h (19mph)31km/h (19mph)30km/h (19mph)36km/h (22mph)34km/h (21mph)
Direction 64°
ENE
64°
ENE
58°
ENE
67°
ENE
66°
ENE
60°
ENE
61°
ENE
59°
ENE
Wind chill27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)26°C (79°F)26°C (79°F)27°C (80°F)27°C (80°F)
Waves
Height1.4m (4.6ft)1.5m (4.8ft)1.5m (4.9ft)1.5m (4.9ft)1.5m (4.8ft)1.4m (4.5ft)1.3m (4.3ft)1.3m (4.2ft)
Direction 45°
NE
45°
NE
45°
NE
47°
NE
44°
NE
47°
NE
46°
NE
46°
NE
Period14.3 sec.14.3 sec.14.3 sec.14.3 sec.14.3 sec.14.3 sec.13.6 sec.9.2 sec.
Significant height0.7m (2.3ft)0.7m (2.3ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.6m (2ft)0.6m (2ft)0.5m (1.6ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather on Friday 19 December 2025

On Friday 19 December 2025, the sun will rise at 06:31 and will set at 18:21 on the beach(es) of Cayenne. The outside temperature will be a high of 81°F t and a low of 76°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 26.7mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature27°C (81°F)26°C (79°F)26°C (78°F)25°C (76°F)25°C (77°F)24°C (75°F)25°C (77°F)26°C (79°F)
Perceived temperature29°C (85°F)29°C (83°F)28°C (83°F)27°C (80°F)27°C (80°F)26°C (79°F)27°C (81°F)28°C (83°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity70%75%83%80%79%84%82%79%
Barometric pressure1010 hPa1008 hPa1009 hPa1012 hPa1012 hPa1009 hPa1009 hPa1011 hPa
Cloud cover91%76%100%97%78%54%40%81%
Heat index29°C (85°F)29°C (83°F)28°C (83°F)27°C (80°F)27°C (80°F)26°C (79°F)27°C (81°F)28°C (83°F)
Dew point21°C (70°F)22°C (71°F)22°C (72°F)21°C (70°F)21°C (70°F)21°C (70°F)22°C (71°F)22°C (72°F)
Wind
Speed23km/h (14mph)21km/h (13mph)25km/h (15mph)27km/h (17mph)22km/h (14mph)14km/h (9mph)12km/h (8mph)17km/h (10mph)
Gusts32km/h (20mph)29km/h (18mph)35km/h (22mph)43km/h (27mph)32km/h (20mph)21km/h (13mph)17km/h (11mph)23km/h (14mph)
Direction 66°
ENE
55°
NE
80°
E
129°
SE
105°
ESE
110°
ESE
73°
ENE
78°
ENE
Wind chill27°C (81°F)26°C (79°F)26°C (78°F)25°C (76°F)25°C (77°F)24°C (75°F)25°C (77°F)26°C (79°F)
Waves
Height1.3m (4.2ft)1.2m (4.1ft)1.2m (4.0ft)1.2m (3.9ft)1.2m (3.8ft)1.1m (3.7ft)1.1m (3.6ft)1.1m (3.6ft)
Direction 46°
NE
46°
NE
46°
NE
45°
NE
45°
NE
44°
NE
44°
NE
44°
NE
Period9.2 sec.14.0 sec.14.0 sec.9.2 sec.9.2 sec.9.3 sec.9.4 sec.9.4 sec.
Significant height0.5m (1.6ft)0.6m (2ft)0.6m (2ft)0.5m (1.6ft)0.4m (1.3ft)0.4m (1.3ft)0.3m (1ft)0.3m (1ft)
Sea water temperature
Water temperature27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)

Sea weather on Saturday 20 December 2025

On Saturday 20 December 2025, the sun will rise at 06:31 and will set at 18:22 on the beach(es) of Cayenne. The outside temperature will be a high of 81°F t and a low of 79°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 11.8mph km/h (with gusts up to 16.8mph). Wave height will be up to 3.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (78°F)27°C (80°F)27°C (80°F)
Perceived temperature29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)28°C (83°F)28°C (83°F)29°C (85°F)29°C (85°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity81%79%81%82%79%81%80%81%
Barometric pressure1011 hPa1009 hPa1009 hPa1012 hPa1011 hPa1009 hPa1009 hPa1011 hPa
Cloud cover78%65%74%80%50%70%66%34%
Heat index29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)28°C (83°F)28°C (83°F)29°C (85°F)29°C (85°F)
Dew point23°C (73°F)22°C (72°F)23°C (73°F)23°C (73°F)22°C (72°F)22°C (72°F)23°C (73°F)23°C (73°F)
Wind
Speed18km/h (11mph)17km/h (11mph)15km/h (9mph)13km/h (8mph)13km/h (8mph)13km/h (8mph)13km/h (8mph)19km/h (12mph)
Gusts24km/h (15mph)23km/h (14mph)20km/h (13mph)18km/h (11mph)19km/h (12mph)19km/h (12mph)19km/h (12mph)27km/h (17mph)
Direction 82°
E
83°
E
80°
E
100°
E
82°
E
84°
E
74°
ENE
86°
E
Wind chill26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (78°F)27°C (80°F)27°C (80°F)
Waves
Height1.1m (3.6ft)1.1m (3.8ft)1.2m (3.8ft)1.1m (3.7ft)1.1m (3.7ft)1.1m (3.7ft)1.1m (3.6ft)1.1m (3.5ft)
Direction 34°
NNE
33°
NNE
39°
NE
39°
NE
39°
NE
39°
NE
39°
NE
40°
NE
Period10.6 sec.10.6 sec.10.3 sec.10.0 sec.9.9 sec.9.8 sec.9.8 sec.9.9 sec.
Significant height0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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