Sea weather in Cat Ba island in Vietnam All the beach weather in Cat Ba island

All the essential weather information for enjoying the beach in Cat Ba island in Vietnam, 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 Cat Ba island over the next 7 days?

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

Date Outside temp. Our opinion
Sunday 16 March 202561°F to 68°Frecommended
Monday 17 March 202561°F to 63°Fdiscouraged
Tuesday 18 March 202558°F to 61°Frecommended
Wednesday 19 March 202559°F to 67°Frecommended
Thursday 20 March 202561°F to 70°Frecommended
Friday 21 March 202563°F to 70°Frecommended
Saturday 22 March 202565°F to 72°Frecommended

Sea Weather: Your daily and hourly sea weather in Cat Ba island

Sea weather on Sunday 16 March 2025

On Sunday 16 March 2025, the sun will rise at 06:00 and will set at 18:02 on the beach(es) of Cat Ba island. The outside temperature will be a high of 68°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 11.8mph km/h (with gusts up to 16.8mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature20°C (67°F)18°C (65°F)17°C (62°F)16°C (60°F)18°C (65°F)19°C (66°F)17°C (63°F)18°C (64°F)
Perceived temperature20°C (67°F)18°C (65°F)17°C (62°F)16°C (60°F)18°C (65°F)19°C (66°F)17°C (63°F)18°C (64°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity81%79%76%75%62%58%62%60%
Barometric pressure1017 hPa1017 hPa1019 hPa1021 hPa1020 hPa1017 hPa1018 hPa1020 hPa
Cloud cover99%100%100%54%100%91%35%53%
Heat index20°C (67°F)18°C (65°F)17°C (62°F)16°C (60°F)18°C (65°F)19°C (66°F)17°C (63°F)18°C (64°F)
Dew point16°C (61°F)15°C (58°F)12°C (54°F)11°C (52°F)11°C (51°F)10°C (51°F)10°C (49°F)10°C (50°F)
Wind
Speed11km/h (7mph)12km/h (7mph)14km/h (9mph)12km/h (8mph)6km/h (4mph)8km/h (5mph)17km/h (11mph)19km/h (12mph)
Gusts16km/h (10mph)16km/h (10mph)19km/h (12mph)17km/h (10mph)7km/h (5mph)11km/h (7mph)26km/h (16mph)27km/h (17mph)
Direction 58°
ENE
26°
NNE
356°
N

N
352°
N
62°
ENE
90°
E
68°
ENE
Wind chill20°C (67°F)18°C (65°F)17°C (62°F)16°C (60°F)18°C (65°F)19°C (66°F)17°C (63°F)18°C (64°F)
Waves
Height0.7m (2.2ft)0.6m (2.1ft)0.6m (2.0ft)0.5m (1.7ft)0.4m (1.5ft)0.4m (1.3ft)0.3m (1.1ft)0.5m (1.5ft)
Direction 118°
ESE
105°
ESE
101°
E
99°
E
100°
E
100°
E
100°
E
100°
E
Period5.5 sec.5.1 sec.5.5 sec.5.4 sec.5.6 sec.5.5 sec.5.3 sec.6.7 sec.
Significant height0.9m (3ft)1.0m (3.3ft)1.0m (3.3ft)0.7m (2.3ft)0.7m (2.3ft)0.6m (2ft)0.5m (1.6ft)0.7m (2.3ft)
Sea water temperature
Water temperature16°C (62°F)16°C (62°F)16°C (62°F)16°C (62°F)16°C (62°F)16°C (62°F)16°C (62°F)16°C (62°F)

Sea weather on Monday 17 March 2025

On Monday 17 March 2025, the sun will rise at 05:59 and will set at 18:02 on the beach(es) of Cat Ba island. The outside temperature will be a high of 63°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 20.5mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature17°C (63°F)17°C (63°F)17°C (62°F)17°C (62°F)17°C (63°F)17°C (63°F)17°C (62°F)16°C (61°F)
Perceived temperature17°C (63°F)17°C (63°F)17°C (62°F)17°C (62°F)17°C (63°F)17°C (63°F)17°C (62°F)16°C (61°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity56%58%61%63%60%60%64%68%
Barometric pressure1020 hPa1019 hPa1020 hPa1022 hPa1021 hPa1019 hPa1019 hPa1022 hPa
Cloud cover79%88%100%100%100%100%100%100%
Heat index17°C (63°F)17°C (63°F)17°C (62°F)17°C (62°F)17°C (63°F)17°C (63°F)17°C (62°F)16°C (61°F)
Dew point9°C (48°F)9°C (48°F)9°C (49°F)10°C (49°F)9°C (49°F)9°C (49°F)10°C (49°F)10°C (51°F)
Wind
Speed21km/h (13mph)17km/h (10mph)22km/h (14mph)23km/h (14mph)17km/h (11mph)16km/h (10mph)21km/h (13mph)23km/h (14mph)
Gusts30km/h (18mph)24km/h (15mph)31km/h (19mph)31km/h (19mph)23km/h (14mph)22km/h (14mph)31km/h (20mph)33km/h (20mph)
Direction 54°
NE
57°
ENE
59°
ENE
56°
NE
57°
ENE
68°
ENE
73°
ENE
71°
ENE
Wind chill17°C (63°F)17°C (63°F)17°C (62°F)17°C (62°F)17°C (63°F)17°C (63°F)17°C (62°F)16°C (61°F)
Waves
Height0.7m (2.2ft)0.6m (2.1ft)0.6m (1.9ft)0.6m (2.0ft)0.5m (1.7ft)0.4m (1.4ft)0.5m (1.5ft)0.7m (2.2ft)
Direction 88°
E
93°
E
94°
E
94°
E
94°
E
104°
ESE
108°
ESE
87°
E
Period6.6 sec.6.6 sec.6.6 sec.6.6 sec.6.6 sec.5.5 sec.5.5 sec.5.5 sec.
Significant height0.8m (2.6ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)1.0m (3.3ft)0.7m (2.3ft)1.1m (3.6ft)1.2m (3.9ft)
Sea water temperature
Water temperature16°C (62°F)16°C (62°F)16°C (62°F)16°C (62°F)16°C (62°F)16°C (62°F)16°C (62°F)16°C (62°F)

Sea weather on Tuesday 18 March 2025

On Tuesday 18 March 2025, the sun will rise at 05:58 and will set at 18:02 on the beach(es) of Cat Ba island. 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 11.8mph km/h (with gusts up to 16.2mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature16°C (60°F)15°C (59°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (59°F)15°C (59°F)15°C (59°F)
Perceived temperature16°C (60°F)15°C (59°F)14°C (57°F)14°C (57°F)15°C (58°F)15°C (59°F)15°C (59°F)15°C (59°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity69%69%67%67%65%60%62%62%
Barometric pressure1023 hPa1022 hPa1023 hPa1026 hPa1025 hPa1023 hPa1023 hPa1026 hPa
Cloud cover100%100%100%100%100%100%100%100%
Heat index16°C (60°F)15°C (59°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (59°F)15°C (59°F)15°C (59°F)
Dew point10°C (50°F)9°C (49°F)9°C (47°F)8°C (47°F)8°C (47°F)7°C (45°F)8°C (46°F)8°C (46°F)
Wind
Speed19km/h (12mph)13km/h (8mph)12km/h (8mph)10km/h (6mph)8km/h (5mph)9km/h (6mph)6km/h (4mph)8km/h (5mph)
Gusts26km/h (16mph)17km/h (11mph)17km/h (10mph)14km/h (9mph)10km/h (6mph)13km/h (8mph)10km/h (6mph)12km/h (7mph)
Direction 52°
NE
20°
NNE

N

N

N
13°
NNE
38°
NE

N
Wind chill16°C (60°F)15°C (59°F)14°C (57°F)14°C (57°F)15°C (58°F)15°C (59°F)15°C (59°F)15°C (59°F)
Waves
Height0.7m (2.4ft)0.6m (1.9ft)0.4m (1.4ft)0.3m (1.1ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (0.9ft)0.3m (0.9ft)
Direction 99°
E
101°
ESE
96°
E
97°
E
98°
E
99°
E
100°
E
101°
E
Period5.5 sec.5.6 sec.5.0 sec.4.9 sec.4.9 sec.4.9 sec.4.8 sec.4.7 sec.
Significant height1.2m (3.9ft)1.0m (3.3ft)0.6m (2ft)0.5m (1.6ft)0.4m (1.3ft)0.5m (1.6ft)0.4m (1.3ft)0.4m (1.3ft)
Sea water temperature
Water temperature18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)

Sea weather on Wednesday 19 March 2025

On Wednesday 19 March 2025, the sun will rise at 05:57 and will set at 18:02 on the beach(es) of Cat Ba island. The outside temperature will be a high of 67°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 6.2mph km/h (with gusts up to 9.3mph). Wave height will be up to 1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature15°C (59°F)15°C (59°F)15°C (59°F)16°C (60°F)17°C (62°F)19°C (66°F)17°C (62°F)17°C (62°F)
Perceived temperature15°C (59°F)15°C (58°F)15°C (58°F)16°C (60°F)17°C (62°F)19°C (66°F)17°C (62°F)17°C (62°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity63%65%65%58%52%44%53%56%
Barometric pressure1025 hPa1025 hPa1026 hPa1028 hPa1026 hPa1023 hPa1024 hPa1025 hPa
Cloud cover100%82%100%74%46%44%46%45%
Heat index15°C (59°F)15°C (59°F)15°C (59°F)16°C (60°F)17°C (62°F)19°C (66°F)17°C (62°F)17°C (62°F)
Dew point8°C (47°F)8°C (47°F)8°C (47°F)7°C (45°F)7°C (45°F)6°C (43°F)7°C (45°F)8°C (46°F)
Wind
Speed5km/h (3mph)8km/h (5mph)9km/h (5mph)9km/h (6mph)10km/h (6mph)3km/h (2mph)9km/h (6mph)1km/h (0mph)
Gusts8km/h (5mph)12km/h (7mph)12km/h (8mph)13km/h (8mph)13km/h (8mph)3km/h (2mph)15km/h (9mph)1km/h (1mph)
Direction 36°
NE
344°
NNW
331°
NNW
320°
NW
323°
NW
288°
WNW
136°
SE
184°
S
Wind chill15°C (59°F)15°C (58°F)15°C (58°F)16°C (60°F)17°C (62°F)19°C (66°F)17°C (62°F)17°C (62°F)
Waves
Height0.3m (1.0ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (0.9ft)0.2m (0.8ft)0.2m (0.8ft)0.2m (0.7ft)
Direction 99°
E
96°
E
94°
E
98°
E
95°
E
93°
E
95°
E
95°
E
Period4.6 sec.4.6 sec.4.6 sec.5.2 sec.4.9 sec.4.7 sec.4.6 sec.4.4 sec.
Significant height0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)0.5m (1.6ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.3m (1ft)
Sea water temperature
Water temperature18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)

Sea weather on Thursday 20 March 2025

On Thursday 20 March 2025, the sun will rise at 05:56 and will set at 18:03 on the beach(es) of Cat Ba island. The outside temperature will be a high of 70°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 8.1mph km/h (with gusts up to 13.1mph). Wave height will be up to 1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature17°C (63°F)16°C (60°F)16°C (60°F)19°C (66°F)21°C (69°F)20°C (67°F)18°C (64°F)18°C (64°F)
Perceived temperature17°C (63°F)16°C (60°F)16°C (60°F)19°C (66°F)21°C (69°F)20°C (67°F)18°C (64°F)18°C (64°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity57%60%57%46%38%40%53%60%
Barometric pressure1025 hPa1024 hPa1025 hPa1027 hPa1024 hPa1020 hPa1020 hPa1022 hPa
Cloud cover32%27%21%23%21%13%11%12%
Heat index17°C (63°F)16°C (60°F)16°C (60°F)19°C (66°F)21°C (69°F)20°C (67°F)18°C (64°F)18°C (64°F)
Dew point8°C (47°F)8°C (46°F)7°C (45°F)7°C (45°F)6°C (42°F)6°C (42°F)8°C (46°F)10°C (50°F)
Wind
Speed8km/h (5mph)6km/h (4mph)5km/h (3mph)3km/h (2mph)8km/h (5mph)13km/h (8mph)12km/h (7mph)8km/h (5mph)
Gusts12km/h (8mph)11km/h (7mph)9km/h (5mph)4km/h (2mph)10km/h (6mph)19km/h (12mph)21km/h (13mph)14km/h (9mph)
Direction 340°
NNW
335°
NNW
325°
NW
68°
ENE
115°
ESE
117°
ESE
114°
ESE
79°
E
Wind chill17°C (63°F)16°C (60°F)16°C (60°F)19°C (66°F)21°C (69°F)20°C (67°F)18°C (64°F)18°C (64°F)
Waves
Height0.2m (0.6ft)0.2m (0.6ft)0.2m (0.8ft)0.2m (0.8ft)0.2m (0.8ft)0.2m (0.8ft)0.3m (0.9ft)0.3m (0.8ft)
Direction 100°
E
102°
ESE
103°
ESE
109°
ESE
113°
ESE
117°
ESE
118°
ESE
119°
ESE
Period4.2 sec.4.1 sec.4.1 sec.4.2 sec.4.2 sec.4.4 sec.4.4 sec.4.4 sec.
Significant height0.3m (1ft)0.3m (1ft)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 temperature16°C (62°F)16°C (62°F)16°C (62°F)16°C (62°F)16°C (62°F)16°C (62°F)16°C (62°F)16°C (62°F)

Sea weather on Friday 21 March 2025

On Friday 21 March 2025, the sun will rise at 05:55 and will set at 18:03 on the beach(es) of Cat Ba island. The outside temperature will be a high of 70°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 11.2mph km/h (with gusts up to 15.5mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature18°C (64°F)17°C (63°F)18°C (64°F)20°C (68°F)21°C (70°F)21°C (69°F)19°C (66°F)19°C (66°F)
Perceived temperature18°C (64°F)17°C (63°F)18°C (64°F)20°C (68°F)21°C (70°F)21°C (69°F)19°C (66°F)19°C (66°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity60%65%63%57%58%63%72%71%
Barometric pressure1022 hPa1021 hPa1022 hPa1023 hPa1021 hPa1019 hPa1019 hPa1019 hPa
Cloud cover14%22%29%30%28%22%27%19%
Heat index18°C (64°F)17°C (63°F)18°C (64°F)22°C (72°F)24°C (76°F)22°C (71°F)19°C (66°F)19°C (66°F)
Dew point10°C (50°F)11°C (51°F)10°C (51°F)11°C (52°F)13°C (55°F)13°C (56°F)14°C (57°F)13°C (56°F)
Wind
Speed12km/h (7mph)12km/h (8mph)12km/h (7mph)13km/h (8mph)16km/h (10mph)18km/h (11mph)12km/h (8mph)10km/h (6mph)
Gusts20km/h (13mph)21km/h (13mph)19km/h (12mph)17km/h (10mph)20km/h (13mph)25km/h (16mph)21km/h (13mph)18km/h (11mph)
Direction 59°
ENE
61°
ENE
40°
NE
67°
ENE
96°
E
106°
ESE
99°
E
81°
E
Wind chill18°C (64°F)17°C (63°F)18°C (64°F)20°C (68°F)21°C (70°F)21°C (69°F)19°C (66°F)19°C (66°F)
Waves
Height0.2m (0.8ft)0.3m (1.0ft)0.4m (1.3ft)0.4m (1.3ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)
Direction 119°
ESE
119°
ESE
108°
ESE
120°
ESE
128°
SE
113°
ESE
118°
ESE
124°
SE
Period4.3 sec.4.1 sec.3.4 sec.4.5 sec.5.2 sec.5.2 sec.5.2 sec.5.2 sec.
Significant height0.4m (1.3ft)0.5m (1.6ft)0.6m (2ft)0.7m (2.3ft)0.8m (2.6ft)1.0m (3.3ft)1.0m (3.3ft)0.9m (3ft)
Sea water temperature
Water temperature16°C (62°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)

Sea weather on Saturday 22 March 2025

On Saturday 22 March 2025, the sun will rise at 05:54 and will set at 18:03 on the beach(es) of Cat Ba island. The outside temperature will be a high of 72°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 11.8mph km/h (with gusts up to 18mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (65°F)18°C (65°F)19°C (65°F)21°C (69°F)22°C (71°F)21°C (70°F)19°C (67°F)19°C (67°F)
Perceived temperature19°C (65°F)18°C (65°F)19°C (65°F)21°C (69°F)22°C (71°F)21°C (70°F)19°C (67°F)19°C (67°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity71%71%67%61%59%63%71%73%
Barometric pressure1019 hPa1019 hPa1020 hPa1021 hPa1019 hPa1017 hPa1017 hPa1018 hPa
Cloud cover15%15%14%13%13%11%11%15%
Heat index19°C (65°F)18°C (65°F)19°C (65°F)23°C (73°F)25°C (76°F)22°C (72°F)19°C (67°F)19°C (67°F)
Dew point13°C (56°F)13°C (55°F)12°C (54°F)13°C (56°F)14°C (56°F)14°C (57°F)14°C (57°F)14°C (58°F)
Wind
Speed9km/h (6mph)11km/h (7mph)12km/h (7mph)14km/h (9mph)17km/h (11mph)19km/h (12mph)15km/h (9mph)11km/h (7mph)
Gusts17km/h (10mph)19km/h (12mph)19km/h (12mph)19km/h (12mph)23km/h (14mph)29km/h (18mph)28km/h (17mph)21km/h (13mph)
Direction 74°
ENE
53°
NE
37°
NE
63°
ENE
87°
E
94°
E
91°
E
91°
E
Wind chill19°C (65°F)18°C (65°F)19°C (65°F)21°C (69°F)22°C (71°F)21°C (70°F)19°C (67°F)19°C (67°F)
Waves
Height0.4m (1.3ft)0.3m (1.0ft)0.4m (1.3ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)
Direction 125°
SE
126°
SE
128°
SE
127°
SE
125°
SE
108°
ESE
112°
ESE
119°
ESE
Period5.2 sec.4.5 sec.5.1 sec.5.5 sec.5.5 sec.5.5 sec.5.5 sec.4.5 sec.
Significant height0.9m (3ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)0.9m (3ft)1.0m (3.3ft)1.0m (3.3ft)0.7m (2.3ft)
Sea water temperature
Water temperature18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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