Sea weather in Grand Cul-de-Sac in Saint-Barthelemy All the beach weather in Grand Cul-de-Sac

All the essential weather information for enjoying the beach in Grand Cul-de-Sac in Saint-Barthelemy, 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 Grand Cul-de-Sac over the next 7 days?

Discover the best moment to go to the beach in Grand Cul-de-Sac in Saint-Barthelemy this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Grand Cul-de-Sac. You can see full forecasts by clicking on the day you want to see in the table below.

Date Outside temp. Our opinion
Saturday 18 September 202181°F to 83°Fdiscouraged
Sunday 19 September 202181°F to 83°Fdiscouraged
Monday 20 September 202183°F to 83°Fdiscouraged
Tuesday 21 September 202183°F to 83°Fdiscouraged
Wednesday 22 September 202176°F to 83°Fdiscouraged
Thursday 23 September 202181°F to 83°Fdiscouraged
Friday 24 September 202181°F to 83°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Grand Cul-de-Sac

Sea weather on Saturday 18 September 2021

On Saturday 18 September 2021, the sun will rise at 06:00 and will set at 18:11 on the beach(es) of Grand Cul-de-Sac. The outside temperature will be a high of 83°F t and a low of 81°F. Precipitation is in the forecast (0.4in 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 30.5mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (82°F)27°C (81°F)28°C (82°F)27°C (81°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)
Perceived temperature31°C (87°F)30°C (86°F)31°C (88°F)30°C (86°F)30°C (87°F)30°C (87°F)31°C (87°F)31°C (87°F)
Precipitation0in0in0in0in0in0.1in0.1in0in
Humidity71%74%73%73%73%74%70%75%
Barometric pressure1014 hPa1013 hPa1015 hPa1015 hPa1013 hPa1013 hPa1014 hPa1014 hPa
Cloud cover39%77%58%54%54%82%75%56%
Heat index31°C (87°F)30°C (86°F)31°C (88°F)30°C (86°F)30°C (87°F)30°C (87°F)31°C (87°F)31°C (87°F)
Dew point22°C (72°F)22°C (72°F)22°C (72°F)22°C (72°F)22°C (72°F)22°C (72°F)22°C (71°F)23°C (73°F)
Wind
Speed27km/h (17mph)26km/h (16mph)23km/h (14mph)25km/h (15mph)23km/h (14mph)22km/h (14mph)18km/h (11mph)28km/h (17mph)
Gusts49km/h (30mph)29km/h (18mph)24km/h (15mph)30km/h (19mph)27km/h (17mph)33km/h (20mph)35km/h (22mph)30km/h (19mph)
Direction 71°
ENE
77°
ENE
87°
E
49°
NE
101°
E
74°
ENE
77°
ENE
58°
ENE
Wind chill28°C (82°F)27°C (81°F)28°C (82°F)27°C (81°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)
Waves
Height1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)1.0m (3.3ft)1.0m (3.3ft)
Direction 80°
E
80°
E
80°
E
340°
NNW
30°
NNE
40°
NE
20°
NNE
80°
E
Period8.6 sec.8.4 sec.8.4 sec.11.8 sec.8.1 sec.7.8 sec.5.6 sec.8.1 sec.
Significant height0.7m (2.3ft)0.7m (2.3ft)0.6m (2ft)0.7m (2.3ft)0.7m (2.3ft)0.6m (2ft)1.0m (3.3ft)0.8m (2.6ft)
Sea water temperature
Water temperature29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)

Sea weather on Sunday 19 September 2021

On Sunday 19 September 2021, the sun will rise at 06:00 and will set at 18:10 on the beach(es) of Grand Cul-de-Sac. The outside temperature will be a high of 83°F t and a low of 81°F. Precipitation is in the forecast (0.1in 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 26.1mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (82°F)28°C (82°F)28°C (82°F)27°C (81°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)
Perceived temperature31°C (88°F)31°C (88°F)31°C (88°F)30°C (86°F)31°C (87°F)32°C (89°F)32°C (89°F)32°C (89°F)
Precipitation0in0in0in0in0in0in0in0.1in
Humidity73%75%75%73%76%77%80%79%
Barometric pressure1012 hPa1012 hPa1013 hPa1014 hPa1011 hPa1011 hPa1012 hPa1013 hPa
Cloud cover43%60%70%33%70%60%35%61%
Heat index31°C (88°F)31°C (88°F)31°C (88°F)30°C (86°F)31°C (87°F)32°C (89°F)32°C (89°F)32°C (89°F)
Dew point23°C (73°F)23°C (73°F)23°C (73°F)22°C (71°F)23°C (73°F)23°C (74°F)24°C (75°F)24°C (75°F)
Wind
Speed25km/h (16mph)21km/h (13mph)26km/h (16mph)23km/h (14mph)28km/h (17mph)22km/h (14mph)20km/h (12mph)20km/h (13mph)
Gusts32km/h (20mph)31km/h (19mph)33km/h (21mph)30km/h (19mph)42km/h (26mph)27km/h (17mph)33km/h (21mph)37km/h (23mph)
Direction 65°
ENE
84°
E
84°
E
78°
ENE
65°
ENE
59°
ENE
47°
NE
43°
NE
Wind chill28°C (82°F)28°C (82°F)28°C (82°F)27°C (81°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)
Waves
Height1.0m (3.3ft)0.9m (3.0ft)1.0m (3.3ft)1.0m (3.3ft)1.1m (3.6ft)1.1m (3.6ft)1.0m (3.3ft)1.0m (3.3ft)
Direction 40°
NE
40°
NE
320°
NW
50°
NE
320°
NW
360°
N
20°
NNE
20°
NNE
Period7.5 sec.7.1 sec.14.0 sec.7.0 sec.13.8 sec.14.2 sec.6.2 sec.6.2 sec.
Significant height0.7m (2.3ft)0.6m (2ft)0.7m (2.3ft)0.7m (2.3ft)0.8m (2.6ft)0.6m (2ft)1.0m (3.3ft)1.0m (3.3ft)
Sea water temperature
Water temperature29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)

Sea weather on Monday 20 September 2021

On Monday 20 September 2021, the sun will rise at 06:00 and will set at 18:09 on the beach(es) of Grand Cul-de-Sac. The outside temperature will be a high of 83°F t and a low of 83°F. Precipitation is in the forecast (0.4in 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 22.4mph). Wave height will be up to 5.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (83°F)28°C (82°F)28°C (82°F)28°C (82°F)
Perceived temperature32°C (89°F)32°C (89°F)32°C (89°F)32°C (89°F)32°C (90°F)31°C (89°F)31°C (89°F)32°C (89°F)
Precipitation0.1in0in0.1in0in0in0in0.1in0in
Humidity80%79%78%77%76%78%76%79%
Barometric pressure1011 hPa1011 hPa1012 hPa1012 hPa1010 hPa1010 hPa1011 hPa1011 hPa
Cloud cover63%60%60%53%63%88%75%75%
Heat index32°C (89°F)32°C (89°F)32°C (89°F)32°C (89°F)32°C (90°F)31°C (89°F)31°C (89°F)32°C (89°F)
Dew point24°C (75°F)24°C (75°F)24°C (75°F)23°C (74°F)24°C (74°F)24°C (74°F)23°C (74°F)24°C (75°F)
Wind
Speed27km/h (17mph)28km/h (17mph)27km/h (17mph)21km/h (13mph)20km/h (13mph)13km/h (8mph)4km/h (3mph)13km/h (8mph)
Gusts36km/h (22mph)33km/h (20mph)35km/h (22mph)35km/h (22mph)23km/h (14mph)15km/h (9mph)6km/h (4mph)29km/h (18mph)
Direction 55°
NE
57°
ENE
54°
NE
43°
NE
29°
NNE
18°
NNE
337°
NNW
215°
SW
Wind chill28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (83°F)28°C (82°F)28°C (82°F)28°C (82°F)
Waves
Height1.0m (3.3ft)1.1m (3.6ft)1.1m (3.6ft)1.3m (4.3ft)1.5m (4.9ft)1.6m (5.2ft)1.7m (5.6ft)1.8m (5.9ft)
Direction 80°
E
320°
NW
360°
N
60°
ENE
320°
NW
330°
NNW
330°
NNW
330°
NNW
Period12.8 sec.13.1 sec.13.0 sec.9.9 sec.9.6 sec.9.6 sec.9.2 sec.8.9 sec.
Significant height0.7m (2.3ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)0.6m (2ft)0.3m (1ft)0.1m (0.3ft)0.3m (1ft)
Sea water temperature
Water temperature29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)

Sea weather on Tuesday 21 September 2021

On Tuesday 21 September 2021, the sun will rise at 06:01 and will set at 18:08 on the beach(es) of Grand Cul-de-Sac. The outside temperature will be a high of 83°F t and a low of 83°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 22.4mph km/h (with gusts up to 33.6mph). Wave height will be up to 6.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (82°F)28°C (82°F)28°C (83°F)28°C (82°F)28°C (82°F)28°C (83°F)28°C (83°F)28°C (82°F)
Perceived temperature32°C (90°F)31°C (88°F)32°C (89°F)31°C (87°F)31°C (88°F)32°C (89°F)32°C (89°F)31°C (88°F)
Precipitation0in0.1in0.1in0in0in0in0in0in
Humidity79%79%73%72%73%73%73%73%
Barometric pressure1010 hPa1011 hPa1013 hPa1014 hPa1013 hPa1012 hPa1013 hPa1014 hPa
Cloud cover67%70%64%79%77%29%51%57%
Heat index32°C (90°F)31°C (88°F)32°C (89°F)31°C (87°F)31°C (88°F)32°C (89°F)32°C (89°F)31°C (88°F)
Dew point24°C (75°F)24°C (74°F)23°C (74°F)22°C (72°F)23°C (73°F)23°C (73°F)23°C (73°F)23°C (73°F)
Wind
Speed21km/h (13mph)27km/h (17mph)36km/h (22mph)32km/h (20mph)29km/h (18mph)28km/h (17mph)28km/h (17mph)22km/h (14mph)
Gusts36km/h (23mph)39km/h (24mph)54km/h (34mph)41km/h (25mph)40km/h (25mph)31km/h (19mph)39km/h (24mph)31km/h (19mph)
Direction 218°
SW
197°
SSW
189°
S
179°
S
165°
SSE
155°
SSE
143°
SE
138°
SE
Wind chill28°C (82°F)28°C (82°F)28°C (83°F)28°C (82°F)28°C (82°F)28°C (83°F)28°C (83°F)28°C (82°F)
Waves
Height2.0m (6.6ft)1.9m (6.2ft)1.8m (5.9ft)1.7m (5.6ft)1.6m (5.2ft)1.4m (4.6ft)1.3m (4.3ft)1.2m (3.9ft)
Direction 330°
NNW
330°
NNW
330°
NNW
320°
NW
330°
NNW
330°
NNW
330°
NNW
80°
E
Period10.0 sec.9.7 sec.9.2 sec.8.9 sec.8.5 sec.8.2 sec.8.2 sec.8.1 sec.
Significant height0.5m (1.6ft)0.7m (2.3ft)1.0m (3.3ft)0.9m (3ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.6m (2ft)
Sea water temperature
Water temperature29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)

Sea weather on Wednesday 22 September 2021

On Wednesday 22 September 2021, the sun will rise at 06:01 and will set at 18:08 on the beach(es) of Grand Cul-de-Sac. The outside temperature will be a high of 83°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 16.2mph km/h (with gusts up to 24.2mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (82°F)28°C (82°F)28°C (82°F)24°C (74°F)28°C (82°F)28°C (82°F)28°C (83°F)28°C (82°F)
Perceived temperature31°C (88°F)31°C (87°F)31°C (87°F)25°C (78°F)31°C (87°F)31°C (88°F)31°C (88°F)31°C (88°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity75%74%73%72%77%71%71%74%
Barometric pressure1012 hPa1012 hPa1014 hPa1014 hPa1012 hPa1012 hPa1013 hPa1013 hPa
Cloud cover63%69%19%8%44%85%6%25%
Heat index31°C (88°F)31°C (87°F)31°C (87°F)25°C (78°F)31°C (87°F)31°C (88°F)31°C (88°F)31°C (88°F)
Dew point23°C (73°F)23°C (73°F)22°C (72°F)18°C (65°F)23°C (74°F)22°C (72°F)22°C (72°F)23°C (73°F)
Wind
Speed25km/h (15mph)24km/h (15mph)26km/h (16mph)23km/h (14mph)24km/h (15mph)22km/h (14mph)17km/h (11mph)18km/h (11mph)
Gusts27km/h (17mph)39km/h (24mph)36km/h (23mph)39km/h (24mph)26km/h (16mph)25km/h (16mph)19km/h (12mph)21km/h (13mph)
Direction 111°
ESE
116°
ESE
113°
ESE
110°
ESE
109°
ESE
112°
ESE
112°
ESE
101°
ESE
Wind chill28°C (82°F)28°C (82°F)28°C (82°F)24°C (74°F)28°C (82°F)28°C (82°F)28°C (83°F)28°C (82°F)
Waves
Height1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)
Direction 340°
NNW
350°
N
30°
NNE
40°
NE
310°
NW
310°
NW
40°
NE
40°
NE
Period8.0 sec.7.9 sec.7.5 sec.7.4 sec.10.8 sec.10.6 sec.7.4 sec.7.4 sec.
Significant height0.7m (2.3ft)0.7m (2.3ft)1.1m (3.6ft)1.1m (3.6ft)0.7m (2.3ft)0.6m (2ft)0.9m (3ft)0.9m (3ft)
Sea water temperature
Water temperature29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)

Sea weather on Thursday 23 September 2021

On Thursday 23 September 2021, the sun will rise at 06:01 and will set at 18:07 on the beach(es) of Grand Cul-de-Sac. The outside temperature will be a high of 83°F t and a low of 81°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 16.2mph km/h (with gusts up to 17.4mph). Wave height will be up to 4.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (82°F)28°C (82°F)28°C (82°F)27°C (81°F)28°C (82°F)28°C (83°F)28°C (83°F)28°C (82°F)
Perceived temperature31°C (88°F)31°C (88°F)31°C (89°F)30°C (86°F)31°C (89°F)32°C (89°F)32°C (89°F)32°C (89°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity75%76%76%74%76%74%76%79%
Barometric pressure1011 hPa1012 hPa1013 hPa1014 hPa1012 hPa1012 hPa1014 hPa1014 hPa
Cloud cover29%40%62%77%60%50%47%83%
Heat index31°C (88°F)31°C (88°F)31°C (89°F)30°C (86°F)31°C (89°F)32°C (89°F)32°C (89°F)32°C (89°F)
Dew point23°C (73°F)23°C (74°F)23°C (74°F)22°C (72°F)23°C (74°F)23°C (74°F)24°C (74°F)24°C (74°F)
Wind
Speed18km/h (11mph)17km/h (11mph)17km/h (11mph)18km/h (11mph)19km/h (12mph)19km/h (12mph)24km/h (15mph)26km/h (16mph)
Gusts21km/h (13mph)19km/h (12mph)25km/h (16mph)28km/h (18mph)25km/h (16mph)26km/h (16mph)25km/h (15mph)28km/h (17mph)
Direction 101°
E
109°
ESE
116°
ESE
100°
E
93°
E
107°
ESE
109°
ESE
103°
ESE
Wind chill28°C (82°F)28°C (82°F)28°C (82°F)27°C (81°F)28°C (82°F)28°C (83°F)28°C (83°F)28°C (82°F)
Waves
Height1.0m (3.3ft)1.1m (3.6ft)1.1m (3.6ft)1.2m (3.9ft)1.3m (4.3ft)1.3m (4.3ft)1.4m (4.6ft)1.4m (4.6ft)
Direction 40°
NE
40°
NE
40°
NE
30°
NNE
320°
NW
320°
NW
320°
NW
320°
NW
Period7.5 sec.7.4 sec.7.3 sec.7.0 sec.13.1 sec.12.6 sec.12.7 sec.12.2 sec.
Significant height0.9m (3ft)0.9m (3ft)0.9m (3ft)1.0m (3.3ft)1.1m (3.6ft)1.3m (4.3ft)1.1m (3.6ft)1.2m (3.9ft)
Sea water temperature
Water temperature29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)

Sea weather on Friday 24 September 2021

On Friday 24 September 2021, the sun will rise at 06:01 and will set at 18:06 on the beach(es) of Grand Cul-de-Sac. The outside temperature will be a high of 83°F t and a low of 81°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 20.5mph). Wave height will be up to 4.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (82°F)28°C (82°F)28°C (83°F)27°C (81°F)28°C (82°F)28°C (83°F)28°C (83°F)28°C (82°F)
Perceived temperature32°C (89°F)32°C (89°F)32°C (89°F)30°C (86°F)32°C (89°F)32°C (89°F)32°C (89°F)31°C (88°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity77%79%73%74%77%73%71%73%
Barometric pressure1013 hPa1014 hPa1015 hPa1016 hPa1014 hPa1014 hPa1016 hPa1016 hPa
Cloud cover84%55%72%27%65%34%4%16%
Heat index32°C (89°F)32°C (89°F)32°C (89°F)30°C (86°F)32°C (89°F)32°C (89°F)32°C (89°F)31°C (88°F)
Dew point24°C (74°F)24°C (74°F)23°C (73°F)22°C (72°F)24°C (74°F)23°C (73°F)23°C (73°F)23°C (73°F)
Wind
Speed24km/h (15mph)28km/h (17mph)24km/h (15mph)25km/h (15mph)27km/h (17mph)23km/h (14mph)21km/h (13mph)23km/h (14mph)
Gusts25km/h (16mph)30km/h (19mph)30km/h (19mph)31km/h (19mph)30km/h (18mph)30km/h (19mph)32km/h (20mph)33km/h (20mph)
Direction 107°
ESE
107°
ESE
114°
ESE
107°
ESE
101°
E
107°
ESE
109°
ESE
105°
ESE
Wind chill28°C (82°F)28°C (82°F)28°C (83°F)27°C (81°F)28°C (82°F)28°C (83°F)28°C (83°F)28°C (82°F)
Waves
Height1.4m (4.6ft)1.4m (4.6ft)1.5m (4.9ft)1.5m (4.9ft)1.5m (4.9ft)1.4m (4.6ft)1.4m (4.6ft)1.4m (4.6ft)
Direction 320°
NW
320°
NW
320°
NW
320°
NW
320°
NW
320°
NW
320°
NW
360°
N
Period12.2 sec.12.9 sec.12.9 sec.12.8 sec.12.7 sec.12.2 sec.12.0 sec.12.0 sec.
Significant height1.1m (3.6ft)1.2m (3.9ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)1.0m (3.3ft)1.1m (3.6ft)
Sea water temperature
Water temperature29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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