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
Saturday 18 July 202683°F to 85°Fdiscouraged
Sunday 19 July 202681°F to 85°Frecommended
Monday 20 July 202681°F to 85°Fdiscouraged
Tuesday 21 July 202683°F to 85°Fdiscouraged
Wednesday 22 July 202681°F to 85°Fdiscouraged
Thursday 23 July 202681°F to 85°Fdiscouraged
Friday 24 July 202681°F to 83°Fdiscouraged

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

Sea weather on Saturday 18 July 2026

On Saturday 18 July 2026, the sun will rise at 05:55 and will set at 18:40 on the beach(es) of Koh Wai. The outside temperature will be a high of 85°F t and a low of 83°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 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)28°C (83°F)28°C (83°F)28°C (82°F)29°C (83°F)
Perceived temperature33°C (91°F)33°C (92°F)33°C (91°F)33°C (92°F)32°C (90°F)32°C (90°F)31°C (88°F)33°C (91°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity73%75%75%75%75%75%75%75%
Barometric pressure1011 hPa1009 hPa1009 hPa1011 hPa1010 hPa1008 hPa1008 hPa1010 hPa
Cloud cover45%34%68%81%80%69%13%8%
Heat index33°C (91°F)33°C (92°F)33°C (91°F)33°C (92°F)32°C (90°F)32°C (90°F)31°C (88°F)33°C (91°F)
Dew point23°C (74°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (74°F)23°C (73°F)24°C (75°F)
Wind
Speed11km/h (7mph)18km/h (11mph)20km/h (13mph)21km/h (13mph)18km/h (11mph)18km/h (11mph)14km/h (9mph)12km/h (8mph)
Gusts16km/h (10mph)26km/h (16mph)28km/h (17mph)28km/h (17mph)27km/h (17mph)26km/h (16mph)23km/h (14mph)17km/h (11mph)
Direction 236°
WSW
243°
WSW
243°
WSW
253°
WSW
249°
WSW
246°
WSW
218°
SW
176°
S
Wind chill29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)28°C (83°F)28°C (83°F)28°C (82°F)29°C (83°F)
Waves
Height0.5m (1.7ft)0.6m (1.9ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.6m (2.1ft)0.6m (1.9ft)0.5m (1.8ft)
Direction 236°
SW
241°
WSW
256°
WSW
260°
W
255°
WSW
252°
WSW
245°
WSW
239°
WSW
Period4.7 sec.4.6 sec.4.5 sec.4.4 sec.4.4 sec.4.4 sec.4.6 sec.4.6 sec.
Significant height0.4m (1.3ft)0.6m (2ft)0.4m (1.3ft)0.5m (1.6ft)0.6m (2ft)0.5m (1.6ft)0.9m (3ft)0.9m (3ft)
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 Sunday 19 July 2026

On Sunday 19 July 2026, the sun will rise at 05:55 and will set at 18:39 on the beach(es) of Koh Wai. The outside temperature will be a high of 85°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 12.4mph km/h (with gusts up to 19.3mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (83°F)29°C (84°F)28°C (83°F)29°C (83°F)28°C (83°F)29°C (83°F)28°C (82°F)29°C (83°F)
Perceived temperature33°C (91°F)33°C (91°F)32°C (90°F)33°C (91°F)32°C (90°F)32°C (90°F)31°C (87°F)33°C (91°F)
Precipitation0in0in0.1in0in0in0in0in0in
Humidity76%75%78%75%74%73%72%74%
Barometric pressure1010 hPa1009 hPa1009 hPa1011 hPa1010 hPa1008 hPa1008 hPa1010 hPa
Cloud cover18%63%12%67%69%48%5%15%
Heat index33°C (91°F)33°C (91°F)32°C (90°F)33°C (91°F)32°C (90°F)32°C (90°F)31°C (87°F)33°C (91°F)
Dew point24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)23°C (74°F)23°C (74°F)22°C (72°F)24°C (74°F)
Wind
Speed14km/h (9mph)18km/h (11mph)19km/h (12mph)20km/h (12mph)18km/h (11mph)18km/h (11mph)10km/h (6mph)15km/h (10mph)
Gusts20km/h (12mph)24km/h (15mph)31km/h (19mph)27km/h (17mph)27km/h (17mph)26km/h (16mph)17km/h (11mph)22km/h (13mph)
Direction 205°
SSW
238°
WSW
250°
WSW
261°
W
260°
W
263°
W
219°
SW
187°
S
Wind chill29°C (83°F)29°C (84°F)28°C (83°F)29°C (83°F)28°C (83°F)29°C (83°F)28°C (82°F)29°C (83°F)
Waves
Height0.5m (1.6ft)0.5m (1.5ft)0.5m (1.7ft)0.7m (2.2ft)0.7m (2.4ft)0.7m (2.3ft)0.6m (2.1ft)0.6m (1.9ft)
Direction 234°
SW
234°
SW
238°
WSW
245°
WSW
243°
WSW
240°
WSW
238°
WSW
236°
SW
Period4.6 sec.4.5 sec.4.5 sec.4.5 sec.4.5 sec.4.5 sec.5.0 sec.4.9 sec.
Significant height0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.9m (3ft)0.9m (3ft)
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 Monday 20 July 2026

On Monday 20 July 2026, the sun will rise at 05:56 and will set at 18:39 on the beach(es) of Koh Wai. The outside temperature will be a high of 85°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 21.8mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (84°F)29°C (84°F)29°C (83°F)29°C (83°F)28°C (82°F)28°C (83°F)28°C (82°F)28°C (83°F)
Perceived temperature33°C (92°F)33°C (92°F)33°C (91°F)33°C (91°F)31°C (87°F)32°C (89°F)30°C (86°F)32°C (90°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity75%73%74%75%69%73%71%73%
Barometric pressure1010 hPa1009 hPa1010 hPa1012 hPa1011 hPa1009 hPa1009 hPa1011 hPa
Cloud cover7%9%58%75%21%51%8%26%
Heat index33°C (92°F)33°C (92°F)33°C (91°F)33°C (91°F)31°C (87°F)32°C (89°F)30°C (86°F)32°C (90°F)
Dew point24°C (75°F)24°C (74°F)23°C (74°F)24°C (75°F)22°C (71°F)23°C (73°F)22°C (71°F)23°C (74°F)
Wind
Speed16km/h (10mph)25km/h (15mph)26km/h (16mph)25km/h (15mph)22km/h (13mph)19km/h (12mph)7km/h (4mph)12km/h (8mph)
Gusts22km/h (14mph)34km/h (21mph)35km/h (22mph)34km/h (21mph)33km/h (21mph)28km/h (17mph)12km/h (7mph)17km/h (11mph)
Direction 215°
SW
267°
W
265°
W
258°
WSW
260°
W
254°
WSW
201°
SSW
180°
S
Wind chill29°C (84°F)29°C (84°F)29°C (83°F)29°C (83°F)28°C (82°F)28°C (83°F)28°C (82°F)28°C (83°F)
Waves
Height0.5m (1.6ft)0.5m (1.7ft)0.7m (2.4ft)0.9m (2.8ft)0.9m (2.8ft)0.8m (2.7ft)0.7m (2.3ft)0.6m (2.0ft)
Direction 234°
SW
233°
SW
248°
WSW
253°
WSW
245°
WSW
240°
WSW
238°
WSW
237°
WSW
Period4.8 sec.4.8 sec.4.8 sec.4.8 sec.4.8 sec.4.8 sec.5.1 sec.5.0 sec.
Significant height0.8m (2.6ft)0.6m (2ft)0.7m (2.3ft)0.7m (2.3ft)0.6m (2ft)0.6m (2ft)1.0m (3.3ft)1.0m (3.3ft)
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 Tuesday 21 July 2026

On Tuesday 21 July 2026, the sun will rise at 05:56 and will set at 18:39 on the beach(es) of Koh Wai. The outside temperature will be a high of 85°F t and a low of 83°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 15.5mph km/h (with gusts up to 21.1mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (83°F)29°C (84°F)29°C (83°F)29°C (84°F)28°C (83°F)28°C (83°F)28°C (82°F)28°C (82°F)
Perceived temperature33°C (91°F)33°C (91°F)33°C (91°F)33°C (91°F)32°C (89°F)32°C (90°F)32°C (89°F)31°C (88°F)
Precipitation0in0in0in0in0in0in0in0.1in
Humidity75%72%74%72%73%73%77%78%
Barometric pressure1011 hPa1010 hPa1010 hPa1012 hPa1011 hPa1009 hPa1009 hPa1011 hPa
Cloud cover43%26%53%50%64%64%31%45%
Heat index33°C (91°F)33°C (91°F)33°C (91°F)33°C (91°F)32°C (89°F)32°C (90°F)32°C (89°F)31°C (88°F)
Dew point24°C (75°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)24°C (74°F)23°C (74°F)
Wind
Speed15km/h (9mph)25km/h (15mph)23km/h (15mph)24km/h (15mph)23km/h (14mph)18km/h (11mph)13km/h (8mph)9km/h (6mph)
Gusts21km/h (13mph)34km/h (21mph)32km/h (20mph)33km/h (21mph)33km/h (21mph)26km/h (16mph)19km/h (12mph)14km/h (9mph)
Direction 229°
SW
278°
W
265°
W
258°
WSW
258°
WSW
251°
WSW
240°
WSW
233°
SW
Wind chill29°C (83°F)29°C (84°F)29°C (83°F)29°C (84°F)28°C (83°F)28°C (83°F)28°C (82°F)28°C (82°F)
Waves
Height0.5m (1.8ft)0.7m (2.2ft)0.9m (2.9ft)0.9m (2.9ft)0.8m (2.8ft)0.8m (2.6ft)0.7m (2.4ft)0.6m (2.1ft)
Direction 235°
SW
241°
WSW
255°
WSW
256°
WSW
247°
WSW
241°
WSW
237°
WSW
237°
WSW
Period5.0 sec.5.0 sec.5.0 sec.5.0 sec.5.0 sec.5.0 sec.5.1 sec.5.0 sec.
Significant height0.6m (2ft)0.7m (2.3ft)0.8m (2.6ft)0.7m (2.3ft)0.6m (2ft)0.6m (2ft)1.1m (3.6ft)1.0m (3.3ft)
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 22 July 2026

On Wednesday 22 July 2026, the sun will rise at 05:56 and will set at 18:39 on the beach(es) of Koh Wai. The outside temperature will be a high of 85°F t and a low of 81°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 13.1mph km/h (with gusts up to 21.1mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (83°F)28°C (82°F)28°C (83°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (83°F)28°C (83°F)
Perceived temperature32°C (89°F)32°C (90°F)32°C (89°F)32°C (89°F)31°C (88°F)32°C (89°F)32°C (89°F)32°C (90°F)
Precipitation0in0in0in0in0in0.1in0in0in
Humidity72%78%75%77%75%77%74%73%
Barometric pressure1011 hPa1009 hPa1010 hPa1011 hPa1011 hPa1009 hPa1009 hPa1010 hPa
Cloud cover47%45%54%37%52%41%69%66%
Heat index32°C (89°F)32°C (90°F)32°C (89°F)32°C (89°F)31°C (88°F)32°C (89°F)32°C (89°F)32°C (90°F)
Dew point23°C (73°F)24°C (75°F)23°C (74°F)24°C (74°F)23°C (73°F)23°C (74°F)23°C (74°F)23°C (74°F)
Wind
Speed12km/h (8mph)19km/h (12mph)21km/h (13mph)20km/h (13mph)18km/h (11mph)21km/h (13mph)9km/h (5mph)9km/h (6mph)
Gusts23km/h (14mph)28km/h (17mph)25km/h (15mph)28km/h (18mph)34km/h (21mph)30km/h (19mph)17km/h (11mph)15km/h (10mph)
Direction 216°
SW
263°
W
261°
W
258°
WSW
261°
W
257°
WSW
250°
WSW
242°
WSW
Wind chill28°C (83°F)28°C (82°F)28°C (83°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (83°F)28°C (83°F)
Waves
Height0.6m (2.0ft)0.7m (2.5ft)0.9m (2.9ft)0.9m (3.0ft)0.9m (3.0ft)0.9m (2.9ft)0.8m (2.6ft)0.6m (2.0ft)
Direction 235°
SW
240°
WSW
252°
WSW
252°
WSW
248°
WSW
242°
WSW
238°
WSW
236°
WSW
Period4.9 sec.4.9 sec.4.9 sec.4.9 sec.4.9 sec.4.9 sec.5.1 sec.5.0 sec.
Significant height0.7m (2.3ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)0.6m (2ft)0.6m (2ft)0.8m (2.6ft)1.0m (3.3ft)
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)30°C (85°F)

Sea weather on Thursday 23 July 2026

On Thursday 23 July 2026, the sun will rise at 05:56 and will set at 18:39 on the beach(es) of Koh Wai. The outside temperature will be a high of 85°F t and a low of 81°F. Precipitation is in the forecast (0.7in 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 19.3mph km/h (with gusts up to 23mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (83°F)29°C (83°F)28°C (83°F)28°C (82°F)27°C (81°F)27°C (81°F)28°C (82°F)28°C (82°F)
Perceived temperature33°C (91°F)33°C (91°F)32°C (90°F)32°C (89°F)31°C (88°F)31°C (88°F)32°C (89°F)32°C (89°F)
Precipitation0.1in0in0in0.1in0.1in0.1in0.1in0.1in
Humidity76%75%76%78%80%82%81%82%
Barometric pressure1010 hPa1009 hPa1009 hPa1010 hPa1009 hPa1008 hPa1008 hPa1009 hPa
Cloud cover55%53%73%67%55%57%58%57%
Heat index33°C (91°F)33°C (91°F)32°C (90°F)32°C (89°F)31°C (88°F)31°C (88°F)32°C (89°F)32°C (89°F)
Dew point24°C (74°F)24°C (75°F)24°C (74°F)24°C (74°F)24°C (74°F)24°C (75°F)24°C (76°F)24°C (75°F)
Wind
Speed18km/h (11mph)24km/h (15mph)27km/h (17mph)22km/h (13mph)24km/h (15mph)30km/h (19mph)31km/h (19mph)28km/h (17mph)
Gusts23km/h (14mph)37km/h (23mph)37km/h (23mph)31km/h (19mph)30km/h (19mph)36km/h (22mph)35km/h (22mph)33km/h (20mph)
Direction 254°
WSW
265°
W
267°
W
266°
W
261°
W
258°
WSW
256°
WSW
269°
W
Wind chill28°C (83°F)29°C (83°F)28°C (83°F)28°C (82°F)27°C (81°F)27°C (81°F)28°C (82°F)28°C (82°F)
Waves
Height0.5m (1.6ft)0.6m (2.0ft)0.8m (2.6ft)0.9m (3.0ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)
Direction 236°
SW
240°
WSW
247°
WSW
250°
WSW
246°
WSW
243°
WSW
242°
WSW
244°
WSW
Period5.0 sec.5.0 sec.5.0 sec.5.0 sec.5.0 sec.5.0 sec.5.0 sec.5.0 sec.
Significant height1.0m (3.3ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)
Sea water temperature
Water temperature30°C (85°F)30°C (85°F)30°C (85°F)30°C (85°F)30°C (85°F)30°C (85°F)30°C (85°F)30°C (85°F)

Sea weather on Friday 24 July 2026

On Friday 24 July 2026, the sun will rise at 05:57 and will set at 18:39 on the beach(es) of Koh Wai. The outside temperature will be a high of 83°F t and a low of 81°F. Precipitation is in the forecast (0.6in 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 27.3mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (82°F)28°C (82°F)27°C (81°F)28°C (82°F)27°C (81°F)28°C (82°F)28°C (82°F)27°C (81°F)
Perceived temperature32°C (89°F)32°C (89°F)31°C (88°F)32°C (89°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)
Precipitation0.1in0in0.1in0.1in0.1in0.1in0in0.1in
Humidity80%79%81%80%80%79%80%81%
Barometric pressure1009 hPa1008 hPa1008 hPa1008 hPa1007 hPa1006 hPa1007 hPa1008 hPa
Cloud cover74%83%88%97%88%94%83%62%
Heat index32°C (89°F)32°C (89°F)31°C (88°F)32°C (89°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)
Dew point24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)
Wind
Speed26km/h (16mph)32km/h (20mph)34km/h (21mph)32km/h (20mph)30km/h (19mph)33km/h (21mph)36km/h (22mph)33km/h (21mph)
Gusts28km/h (17mph)44km/h (27mph)43km/h (27mph)35km/h (22mph)31km/h (19mph)38km/h (23mph)39km/h (24mph)38km/h (24mph)
Direction 264°
W
274°
W
267°
W
263°
W
264°
W
262°
W
256°
WSW
250°
WSW
Wind chill28°C (82°F)28°C (82°F)27°C (81°F)28°C (82°F)27°C (81°F)28°C (82°F)28°C (82°F)27°C (81°F)
Waves
Height1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)1.2m (3.9ft)1.3m (4.3ft)1.2m (3.9ft)1.3m (4.3ft)1.3m (4.3ft)
Direction 255°
WSW
249°
WSW
256°
WSW
259°
W
255°
WSW
251°
WSW
250°
WSW
250°
WSW
Period5.0 sec.4.8 sec.4.9 sec.5.0 sec.5.0 sec.5.0 sec.5.0 sec.5.0 sec.
Significant height1.0m (3.3ft)1.0m (3.3ft)0.9m (3ft)1.0m (3.3ft)1.0m (3.3ft)0.9m (3ft)1.1m (3.6ft)1.0m (3.3ft)
Sea water temperature
Water temperature30°C (85°F)30°C (85°F)30°C (85°F)30°C (85°F)30°C (85°F)30°C (85°F)30°C (85°F)30°C (85°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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