Sea weather in Koh Wai in Thailand All the beach weather in Koh Wai

All the essential weather information for enjoying the beach in Koh Wai in Thailand, 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 Koh Wai over the next 7 days?

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

Date Outside temp. Our opinion
Friday 5 December 202579°F to 81°Frecommended
Saturday 6 December 202572°F to 81°Frecommended
Sunday 7 December 202574°F to 83°Frecommended
Monday 8 December 202574°F to 83°Fdiscouraged
Tuesday 9 December 202576°F to 79°Fdiscouraged
Wednesday 10 December 202574°F to 79°Fdiscouraged
Thursday 11 December 202576°F to 81°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Koh Wai

Sea weather on Friday 5 December 2025

On Friday 5 December 2025, the sun will rise at 06:18 and will set at 17:46 on the beach(es) of Koh Wai. 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 9.9mph km/h (with gusts up to 16.8mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature27°C (80°F)26°C (80°F)26°C (79°F)26°C (79°F)26°C (79°F)27°C (81°F)27°C (81°F)27°C (81°F)
Perceived temperature29°C (85°F)29°C (84°F)29°C (84°F)29°C (83°F)28°C (83°F)29°C (85°F)30°C (86°F)30°C (86°F)
Precipitation0in0.1in0.1in0in0in0in0in0in
Humidity78%79%80%81%74%71%74%74%
Barometric pressure1013 hPa1012 hPa1013 hPa1015 hPa1013 hPa1010 hPa1011 hPa1013 hPa
Cloud cover79%54%58%53%36%24%41%88%
Heat index29°C (85°F)29°C (84°F)29°C (84°F)29°C (83°F)28°C (83°F)29°C (85°F)30°C (86°F)30°C (86°F)
Dew point22°C (72°F)22°C (72°F)22°C (72°F)22°C (72°F)21°C (70°F)21°C (71°F)22°C (72°F)22°C (72°F)
Wind
Speed3km/h (2mph)6km/h (4mph)13km/h (8mph)16km/h (10mph)13km/h (8mph)11km/h (7mph)14km/h (9mph)1km/h (1mph)
Gusts5km/h (3mph)10km/h (6mph)27km/h (17mph)22km/h (14mph)20km/h (13mph)17km/h (11mph)20km/h (13mph)2km/h (1mph)
Direction 64°
ENE
45°
NE
22°
NNE
42°
NE
46°
NE
213°
SSW
275°
W
280°
W
Wind chill27°C (80°F)26°C (80°F)26°C (79°F)26°C (79°F)26°C (79°F)27°C (81°F)27°C (81°F)27°C (81°F)
Waves
Height0.2m (0.7ft)0.4m (1.4ft)0.4m (1.5ft)0.3m (1.0ft)0.3m (0.9ft)0.3m (0.9ft)0.3m (0.9ft)0.2m (0.7ft)
Direction 25°
NNE
149°
SSE
156°
SSE
159°
SSE
160°
SSE
162°
SSE
279°
W
280°
W
Period2.7 sec.2.4 sec.2.4 sec.3.2 sec.4.6 sec.4.1 sec.3.8 sec.2.3 sec.
Significant height0.4m (1.3ft)0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)0.5m (1.6ft)0.6m (2ft)0.4m (1.3ft)0.3m (1ft)
Sea water temperature
Water temperature26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)

Sea weather on Saturday 6 December 2025

On Saturday 6 December 2025, the sun will rise at 06:18 and will set at 17:46 on the beach(es) of Koh Wai. The outside temperature will be a high of 81°F t and a low of 72°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 9.3mph km/h (with gusts up to 14.3mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature27°C (81°F)27°C (80°F)26°C (79°F)26°C (79°F)23°C (74°F)27°C (81°F)27°C (81°F)27°C (81°F)
Perceived temperature30°C (86°F)29°C (84°F)28°C (83°F)28°C (83°F)25°C (77°F)29°C (85°F)30°C (86°F)30°C (86°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity74%71%74%76%72%72%74%74%
Barometric pressure1013 hPa1011 hPa1012 hPa1014 hPa1013 hPa1010 hPa1011 hPa1013 hPa
Cloud cover75%20%13%11%10%20%82%72%
Heat index30°C (86°F)29°C (84°F)28°C (83°F)28°C (83°F)25°C (77°F)29°C (85°F)30°C (86°F)30°C (86°F)
Dew point22°C (72°F)21°C (70°F)21°C (70°F)21°C (71°F)18°C (64°F)21°C (71°F)22°C (72°F)22°C (72°F)
Wind
Speed6km/h (4mph)10km/h (6mph)15km/h (9mph)15km/h (9mph)6km/h (4mph)15km/h (9mph)9km/h (6mph)5km/h (3mph)
Gusts9km/h (6mph)14km/h (9mph)21km/h (13mph)21km/h (13mph)14km/h (8mph)23km/h (14mph)13km/h (8mph)7km/h (5mph)
Direction 72°
ENE
28°
NNE
39°
NE
49°
NE
177°
S
223°
SW
230°
SW
253°
WSW
Wind chill27°C (81°F)27°C (80°F)26°C (79°F)26°C (79°F)23°C (74°F)27°C (81°F)27°C (81°F)27°C (81°F)
Waves
Height0.2m (0.7ft)0.3m (0.9ft)0.4m (1.2ft)0.4m (1.2ft)0.2m (0.7ft)0.3m (0.9ft)0.3m (0.9ft)0.2m (0.7ft)
Direction 301°
WNW
344°
NNW
17°
NNE
33°
NNE
24°
NNE
227°
SW
226°
SW
262°
W
Period2.4 sec.5.0 sec.5.3 sec.5.3 sec.2.5 sec.3.8 sec.4.1 sec.2.2 sec.
Significant height0.4m (1.3ft)0.5m (1.6ft)0.7m (2.3ft)0.5m (1.6ft)0.2m (0.7ft)0.7m (2.3ft)0.4m (1.3ft)0.3m (1ft)
Sea water temperature
Water temperature26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)

Sea weather on Sunday 7 December 2025

On Sunday 7 December 2025, the sun will rise at 06:19 and will set at 17:46 on the beach(es) of Koh Wai. The outside temperature will be a high of 83°F t and a low of 74°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 6.8mph km/h (with gusts up to 9.3mph). Wave height will be up to 0.7ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature27°C (81°F)27°C (80°F)26°C (78°F)26°C (79°F)23°C (74°F)27°C (81°F)27°C (81°F)27°C (81°F)
Perceived temperature30°C (86°F)29°C (84°F)28°C (82°F)28°C (82°F)25°C (77°F)29°C (85°F)30°C (86°F)30°C (86°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity72%74%75%74%69%70%72%72%
Barometric pressure1013 hPa1011 hPa1012 hPa1014 hPa1013 hPa1010 hPa1011 hPa1013 hPa
Cloud cover15%17%17%51%14%56%78%75%
Heat index30°C (86°F)29°C (84°F)28°C (82°F)28°C (82°F)25°C (77°F)29°C (85°F)30°C (86°F)30°C (86°F)
Dew point22°C (72°F)22°C (71°F)21°C (70°F)21°C (70°F)17°C (63°F)21°C (70°F)22°C (71°F)22°C (72°F)
Wind
Speed6km/h (4mph)8km/h (5mph)10km/h (6mph)11km/h (7mph)1km/h (1mph)7km/h (4mph)7km/h (4mph)8km/h (5mph)
Gusts9km/h (5mph)11km/h (7mph)14km/h (9mph)15km/h (9mph)2km/h (1mph)10km/h (6mph)10km/h (6mph)12km/h (8mph)
Direction 308°
NW
15°
NNE
50°
NE
35°
NE
201°
SSW
246°
WSW
292°
WNW
14°
NNE
Wind chill27°C (81°F)27°C (80°F)26°C (78°F)26°C (79°F)23°C (74°F)27°C (81°F)27°C (81°F)27°C (81°F)
Waves
Height0.2m (0.5ft)0.2m (0.5ft)0.1m (0.5ft)0.2m (0.6ft)0.1m (0.5ft)0.1m (0.4ft)0.1m (0.4ft)0.1m (0.4ft)
Direction 269°
W
240°
WSW
216°
SW
30°
NNE
27°
NNE
169°
S
171°
S
172°
S
Period2.0 sec.4.3 sec.4.3 sec.4.2 sec.1.9 sec.4.9 sec.5.0 sec.5.0 sec.
Significant height0.2m (0.7ft)0.3m (1ft)0.3m (1ft)0.4m (1.3ft)0.1m (0.3ft)0.2m (0.7ft)0.1m (0.3ft)0.2m (0.7ft)
Sea water temperature
Water temperature26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)

Sea weather on Monday 8 December 2025

On Monday 8 December 2025, the sun will rise at 06:19 and will set at 17:47 on the beach(es) of Koh Wai. The outside temperature will be a high of 83°F t and a low of 74°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 17.4mph). Wave height will be up to 0.7ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature27°C (81°F)27°C (81°F)26°C (79°F)25°C (78°F)23°C (74°F)26°C (80°F)27°C (81°F)27°C (80°F)
Perceived temperature29°C (85°F)29°C (85°F)28°C (83°F)27°C (81°F)25°C (77°F)28°C (83°F)30°C (85°F)29°C (83°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity72%70%71%74%65%68%69%69%
Barometric pressure1013 hPa1011 hPa1012 hPa1014 hPa1012 hPa1010 hPa1011 hPa1013 hPa
Cloud cover87%88%9%10%7%71%72%85%
Heat index29°C (85°F)29°C (85°F)28°C (83°F)27°C (81°F)25°C (77°F)28°C (83°F)30°C (85°F)29°C (83°F)
Dew point22°C (71°F)21°C (70°F)20°C (69°F)20°C (68°F)17°C (62°F)20°C (68°F)21°C (70°F)21°C (69°F)
Wind
Speed12km/h (7mph)5km/h (3mph)11km/h (7mph)21km/h (13mph)5km/h (3mph)10km/h (6mph)6km/h (4mph)19km/h (12mph)
Gusts17km/h (11mph)7km/h (4mph)15km/h (9mph)28km/h (18mph)11km/h (7mph)15km/h (9mph)10km/h (6mph)27km/h (16mph)
Direction 58°
ENE
118°
ESE
38°
NE
37°
NE
75°
ENE
218°
SW
277°
W
42°
NE
Wind chill27°C (81°F)27°C (81°F)26°C (79°F)25°C (78°F)23°C (74°F)26°C (80°F)27°C (81°F)27°C (80°F)
Waves
Height0.2m (0.5ft)0.1m (0.5ft)0.2m (0.5ft)0.2m (0.8ft)0.2m (0.7ft)0.2m (0.6ft)0.1m (0.5ft)0.2m (0.6ft)
Direction 172°
S
172°
S
175°
S
28°
NNE
15°
NNE
358°
N
175°
S
32°
NNE
Period4.9 sec.4.8 sec.4.7 sec.4.5 sec.2.4 sec.2.3 sec.1.8 sec.4.1 sec.
Significant height0.4m (1.3ft)0.2m (0.7ft)0.4m (1.3ft)0.5m (1.6ft)0.1m (0.3ft)0.3m (1ft)0.1m (0.3ft)0.4m (1.3ft)
Sea water temperature
Water temperature26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)

Sea weather on Tuesday 9 December 2025

On Tuesday 9 December 2025, the sun will rise at 06:20 and will set at 17:47 on the beach(es) of Koh Wai. The outside temperature will be a high of 79°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 18.6mph km/h (with gusts up to 26.7mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature26°C (78°F)25°C (77°F)24°C (75°F)24°C (75°F)26°C (78°F)26°C (78°F)26°C (79°F)26°C (78°F)
Perceived temperature27°C (81°F)27°C (80°F)26°C (78°F)26°C (78°F)27°C (80°F)27°C (80°F)28°C (82°F)27°C (81°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity69%72%72%69%60%61%65%69%
Barometric pressure1012 hPa1011 hPa1012 hPa1014 hPa1012 hPa1009 hPa1010 hPa1011 hPa
Cloud cover17%16%21%26%22%9%6%6%
Heat index27°C (81°F)27°C (80°F)26°C (78°F)26°C (78°F)27°C (80°F)27°C (80°F)28°C (82°F)27°C (81°F)
Dew point20°C (67°F)20°C (67°F)19°C (66°F)18°C (64°F)17°C (63°F)17°C (63°F)19°C (66°F)19°C (67°F)
Wind
Speed15km/h (10mph)23km/h (14mph)24km/h (15mph)24km/h (15mph)16km/h (10mph)12km/h (7mph)30km/h (19mph)30km/h (19mph)
Gusts21km/h (13mph)30km/h (19mph)31km/h (19mph)32km/h (20mph)25km/h (15mph)24km/h (15mph)36km/h (22mph)43km/h (27mph)
Direction 44°
NE
37°
NE
39°
NE
41°
NE
31°
NNE
25°
NNE
17°
NNE
30°
NNE
Wind chill26°C (78°F)25°C (77°F)24°C (75°F)24°C (75°F)26°C (78°F)26°C (78°F)26°C (79°F)26°C (78°F)
Waves
Height0.2m (0.7ft)0.3m (1.0ft)0.5m (1.5ft)0.5m (1.5ft)0.4m (1.2ft)0.3m (0.9ft)0.3m (1.0ft)0.4m (1.3ft)
Direction 30°
NNE
31°
NNE
18°
NNE

N
11°
NNE

N
236°
WSW
124°
ESE
Period4.0 sec.4.0 sec.3.9 sec.3.8 sec.3.8 sec.3.8 sec.3.8 sec.3.8 sec.
Significant height0.2m (0.7ft)0.7m (2.3ft)0.8m (2.6ft)0.6m (2ft)0.4m (1.3ft)0.4m (1.3ft)0.5m (1.6ft)0.6m (2ft)
Sea water temperature
Water temperature28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)

Sea weather on Wednesday 10 December 2025

On Wednesday 10 December 2025, the sun will rise at 06:20 and will set at 17:47 on the beach(es) of Koh Wai. The outside temperature will be a high of 79°F t and a low of 74°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 21.1mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature25°C (77°F)25°C (76°F)24°C (75°F)24°C (76°F)23°C (74°F)24°C (75°F)26°C (78°F)26°C (78°F)
Perceived temperature27°C (80°F)26°C (79°F)26°C (78°F)26°C (78°F)25°C (77°F)25°C (78°F)27°C (80°F)27°C (81°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity69%68%68%64%57%57%58%62%
Barometric pressure1011 hPa1011 hPa1011 hPa1012 hPa1011 hPa1008 hPa1009 hPa1010 hPa
Cloud cover7%4%3%4%4%1%2%13%
Heat index27°C (80°F)26°C (79°F)26°C (78°F)26°C (78°F)25°C (77°F)25°C (78°F)27°C (80°F)27°C (81°F)
Dew point19°C (66°F)18°C (65°F)18°C (64°F)17°C (62°F)14°C (58°F)15°C (59°F)17°C (62°F)18°C (64°F)
Wind
Speed25km/h (15mph)25km/h (15mph)23km/h (14mph)18km/h (11mph)13km/h (8mph)13km/h (8mph)13km/h (8mph)15km/h (9mph)
Gusts34km/h (21mph)33km/h (21mph)30km/h (19mph)24km/h (15mph)23km/h (15mph)25km/h (16mph)22km/h (13mph)22km/h (13mph)
Direction 33°
NNE
37°
NE
38°
NE
33°
NNE
229°
SW
313°
NW
334°
NNW
136°
SE
Wind chill25°C (77°F)25°C (76°F)24°C (75°F)24°C (76°F)23°C (74°F)24°C (75°F)26°C (78°F)26°C (78°F)
Waves
Height0.3m (1.0ft)0.3m (1.0ft)0.3m (1.0ft)0.4m (1.3ft)0.3m (1.0ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)
Direction 17°
NNE
22°
NNE
18°
NNE

N
238°
WSW
345°
NNW
323°
NW
339°
NNW
Period3.8 sec.3.8 sec.3.8 sec.3.8 sec.3.2 sec.2.8 sec.2.7 sec.2.7 sec.
Significant height0.5m (1.6ft)0.5m (1.6ft)0.6m (2ft)0.6m (2ft)0.3m (1ft)0.4m (1.3ft)0.4m (1.3ft)0.5m (1.6ft)
Sea water temperature
Water temperature28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)

Sea weather on Thursday 11 December 2025

On Thursday 11 December 2025, the sun will rise at 06:21 and will set at 17:48 on the beach(es) of Koh Wai. 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 17.4mph km/h (with gusts up to 24.2mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature25°C (77°F)25°C (77°F)25°C (76°F)25°C (77°F)26°C (78°F)27°C (80°F)27°C (80°F)26°C (79°F)
Perceived temperature27°C (80°F)26°C (79°F)26°C (79°F)26°C (80°F)27°C (80°F)28°C (83°F)29°C (83°F)28°C (82°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity65%67%70%67%64%64%70%72%
Barometric pressure1010 hPa1009 hPa1009 hPa1011 hPa1010 hPa1007 hPa1008 hPa1009 hPa
Cloud cover29%20%13%14%15%22%19%15%
Heat index27°C (80°F)26°C (79°F)26°C (79°F)26°C (80°F)27°C (80°F)28°C (83°F)29°C (83°F)28°C (82°F)
Dew point18°C (64°F)18°C (65°F)19°C (66°F)19°C (65°F)18°C (65°F)19°C (67°F)21°C (69°F)21°C (69°F)
Wind
Speed16km/h (10mph)20km/h (12mph)24km/h (15mph)21km/h (13mph)17km/h (11mph)15km/h (9mph)25km/h (16mph)28km/h (17mph)
Gusts22km/h (14mph)27km/h (17mph)32km/h (20mph)27km/h (17mph)25km/h (16mph)23km/h (14mph)35km/h (22mph)39km/h (24mph)
Direction 19°
NNE
17°
NNE
20°
NNE

N
229°
SW
353°
N
140°
SE
26°
NNE
Wind chill25°C (77°F)25°C (77°F)25°C (76°F)25°C (77°F)26°C (78°F)27°C (80°F)27°C (80°F)26°C (79°F)
Waves
Height0.2m (0.7ft)0.3m (1.0ft)0.3m (1.0ft)0.4m (1.3ft)0.3m (1.0ft)0.2m (0.7ft)0.3m (1.0ft)0.3m (1.0ft)
Direction 119°
ESE

N

N

N

N
205°
SSW
310°
NW
311°
NW
Period2.7 sec.2.7 sec.2.7 sec.2.7 sec.2.8 sec.2.9 sec.2.9 sec.2.9 sec.
Significant height0.5m (1.6ft)0.5m (1.6ft)0.7m (2.3ft)0.6m (2ft)0.3m (1ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)
Sea water temperature
Water temperature28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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