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

All the essential weather information for enjoying the beach in Koh Chang 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 Chang over the next 7 days?

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

Date Outside temp. Our opinion
Monday 20 July 202677°F to 85°Frecommended
Tuesday 21 July 202681°F to 85°Fdiscouraged
Wednesday 22 July 202683°F to 85°Frecommended
Thursday 23 July 202679°F to 85°Fdiscouraged
Friday 24 July 202679°F to 83°Frecommended
Saturday 25 July 202677°F to 83°Fdiscouraged
Sunday 26 July 202679°F to 83°Fdiscouraged

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

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 Chang. The outside temperature will be a high of 85°F t and a low of 77°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 10.6mph km/h (with gusts up to 14.3mph). 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 (83°F)28°C (82°F)29°C (84°F)25°C (77°F)28°C (83°F)28°C (82°F)29°C (83°F)
Perceived temperature33°C (91°F)33°C (91°F)32°C (89°F)32°C (90°F)27°C (80°F)32°C (89°F)31°C (87°F)32°C (89°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity74%74%76%69%69%72%72%71%
Barometric pressure1010 hPa1009 hPa1010 hPa1011 hPa1011 hPa1009 hPa1009 hPa1010 hPa
Cloud cover4%84%76%22%13%48%4%0%
Heat index33°C (91°F)33°C (91°F)32°C (89°F)32°C (90°F)27°C (80°F)32°C (89°F)31°C (87°F)32°C (89°F)
Dew point24°C (74°F)24°C (74°F)23°C (74°F)23°C (73°F)19°C (66°F)23°C (73°F)22°C (72°F)23°C (73°F)
Wind
Speed12km/h (7mph)9km/h (6mph)8km/h (5mph)15km/h (9mph)17km/h (11mph)15km/h (10mph)10km/h (6mph)15km/h (9mph)
Gusts16km/h (10mph)12km/h (8mph)12km/h (7mph)20km/h (13mph)20km/h (12mph)23km/h (14mph)16km/h (10mph)21km/h (13mph)
Direction 191°
S
224°
SW
248°
WSW
259°
W
261°
W
254°
WSW
224°
SW
159°
SSE
Wind chill29°C (83°F)29°C (83°F)28°C (82°F)29°C (84°F)25°C (77°F)28°C (83°F)28°C (82°F)29°C (83°F)
Waves
Height0.5m (1.5ft)0.4m (1.4ft)0.5m (1.8ft)0.7m (2.2ft)0.7m (2.3ft)0.7m (2.3ft)0.6m (2.0ft)0.6m (1.8ft)
Direction 236°
SW
235°
SW
240°
WSW
246°
WSW
250°
WSW
246°
WSW
241°
WSW
238°
WSW
Period4.7 sec.4.7 sec.4.7 sec.4.7 sec.4.7 sec.5.0 sec.5.0 sec.4.9 sec.
Significant height0.8m (2.6ft)0.8m (2.6ft)0.9m (3ft)0.9m (3ft)0.9m (3ft)1.0m (3.3ft)0.9m (3ft)0.9m (3ft)
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 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 Chang. 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 13.7mph km/h (with gusts up to 18.6mph). Wave height will be up to 2ft 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)29°C (83°F)28°C (82°F)29°C (83°F)
Perceived temperature32°C (90°F)33°C (92°F)33°C (91°F)33°C (91°F)32°C (90°F)32°C (90°F)31°C (87°F)33°C (91°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity71%75%71%75%74%71%71%74%
Barometric pressure1011 hPa1010 hPa1010 hPa1012 hPa1011 hPa1009 hPa1008 hPa1010 hPa
Cloud cover6%68%20%67%69%71%12%39%
Heat index32°C (90°F)33°C (92°F)33°C (91°F)33°C (91°F)32°C (90°F)32°C (90°F)31°C (87°F)33°C (91°F)
Dew point23°C (73°F)24°C (75°F)23°C (73°F)24°C (75°F)23°C (74°F)23°C (73°F)22°C (72°F)23°C (74°F)
Wind
Speed17km/h (10mph)19km/h (12mph)22km/h (14mph)18km/h (11mph)14km/h (9mph)7km/h (4mph)8km/h (5mph)13km/h (8mph)
Gusts23km/h (14mph)26km/h (16mph)30km/h (18mph)24km/h (15mph)21km/h (13mph)10km/h (6mph)13km/h (8mph)18km/h (11mph)
Direction 203°
SSW
248°
WSW
265°
W
267°
W
246°
WSW
236°
WSW
172°
S
187°
S
Wind chill29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)28°C (83°F)29°C (83°F)28°C (82°F)29°C (83°F)
Waves
Height0.5m (1.6ft)0.5m (1.6ft)0.5m (1.7ft)0.6m (1.9ft)0.6m (2.0ft)0.6m (1.9ft)0.5m (1.8ft)0.5m (1.7ft)
Direction 237°
WSW
237°
WSW
243°
WSW
252°
WSW
252°
WSW
246°
WSW
242°
WSW
238°
WSW
Period4.8 sec.4.8 sec.4.8 sec.4.8 sec.4.8 sec.4.6 sec.4.6 sec.4.6 sec.
Significant height0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.9m (3ft)0.8m (2.6ft)0.8m (2.6ft)
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 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 Chang. 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 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 temperature29°C (83°F)28°C (83°F)29°C (84°F)29°C (84°F)28°C (83°F)29°C (83°F)29°C (83°F)29°C (84°F)
Perceived temperature33°C (91°F)33°C (91°F)33°C (91°F)33°C (92°F)32°C (90°F)33°C (91°F)33°C (91°F)33°C (92°F)
Precipitation0in0.1in0in0in0in0in0in0in
Humidity76%76%74%75%75%74%74%76%
Barometric pressure1010 hPa1009 hPa1009 hPa1011 hPa1011 hPa1008 hPa1008 hPa1010 hPa
Cloud cover89%71%18%53%78%76%24%78%
Heat index33°C (91°F)33°C (91°F)33°C (91°F)33°C (92°F)32°C (90°F)33°C (91°F)33°C (91°F)33°C (92°F)
Dew point24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)23°C (74°F)24°C (74°F)24°C (74°F)24°C (75°F)
Wind
Speed13km/h (8mph)15km/h (10mph)14km/h (9mph)19km/h (12mph)17km/h (11mph)15km/h (9mph)12km/h (7mph)18km/h (11mph)
Gusts18km/h (11mph)23km/h (15mph)27km/h (17mph)26km/h (16mph)26km/h (16mph)21km/h (13mph)16km/h (10mph)25km/h (15mph)
Direction 208°
SSW
240°
WSW
260°
W
244°
WSW
242°
WSW
243°
WSW
214°
SW
201°
SSW
Wind chill29°C (83°F)28°C (83°F)29°C (84°F)29°C (84°F)28°C (83°F)29°C (83°F)29°C (83°F)29°C (84°F)
Waves
Height0.4m (1.5ft)0.4m (1.4ft)0.5m (1.5ft)0.5m (1.7ft)0.6m (1.9ft)0.6m (2.1ft)0.7m (2.2ft)0.6m (2.0ft)
Direction 236°
SW
237°
WSW
241°
WSW
247°
WSW
246°
WSW
243°
WSW
236°
SW
236°
WSW
Period4.5 sec.4.5 sec.4.5 sec.4.1 sec.4.5 sec.4.4 sec.4.8 sec.4.7 sec.
Significant height0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.9m (3ft)0.5m (1.6ft)1.0m (3.3ft)0.9m (3ft)
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 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 Chang. The outside temperature will be a high of 85°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 14.3mph km/h (with gusts up to 19.9mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (84°F)29°C (83°F)28°C (83°F)28°C (83°F)26°C (79°F)26°C (79°F)27°C (81°F)26°C (80°F)
Perceived temperature34°C (92°F)33°C (91°F)32°C (90°F)32°C (89°F)29°C (84°F)29°C (84°F)31°C (87°F)30°C (85°F)
Precipitation0in0in0.1in0in0.1in0in0.1in0.1in
Humidity74%77%79%73%86%85%79%85%
Barometric pressure1010 hPa1007 hPa1008 hPa1010 hPa1009 hPa1008 hPa1008 hPa1009 hPa
Cloud cover19%78%51%56%71%58%70%81%
Heat index34°C (92°F)33°C (91°F)32°C (90°F)32°C (89°F)29°C (84°F)29°C (84°F)31°C (87°F)30°C (85°F)
Dew point24°C (75°F)24°C (75°F)24°C (75°F)23°C (73°F)23°C (74°F)23°C (74°F)23°C (74°F)24°C (75°F)
Wind
Speed12km/h (7mph)18km/h (11mph)21km/h (13mph)23km/h (15mph)21km/h (13mph)15km/h (10mph)18km/h (11mph)16km/h (10mph)
Gusts17km/h (10mph)26km/h (16mph)22km/h (14mph)32km/h (20mph)32km/h (20mph)22km/h (13mph)30km/h (19mph)26km/h (16mph)
Direction 214°
SW
252°
WSW
258°
WSW
253°
WSW
291°
WNW
270°
W
255°
WSW
280°
W
Wind chill29°C (84°F)29°C (83°F)28°C (83°F)28°C (83°F)26°C (79°F)26°C (79°F)27°C (81°F)26°C (80°F)
Waves
Height0.5m (1.6ft)0.4m (1.4ft)0.4m (1.4ft)0.6m (2.0ft)0.6m (2.0ft)0.6m (2.1ft)0.9m (3.1ft)1.3m (4.3ft)
Direction 235°
SW
236°
SW
237°
WSW
242°
WSW
245°
WSW
241°
WSW
241°
WSW
239°
WSW
Period4.6 sec.4.3 sec.4.3 sec.4.3 sec.4.6 sec.4.9 sec.4.9 sec.4.9 sec.
Significant height0.8m (2.6ft)0.7m (2.3ft)0.8m (2.6ft)0.8m (2.6ft)0.9m (3ft)1.0m (3.3ft)1.3m (4.3ft)1.4m (4.6ft)
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 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 Chang. The outside temperature will be a high of 83°F t and a low of 79°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 11.2mph km/h (with gusts up to 16.8mph). Wave height will be up to 5.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature27°C (80°F)26°C (80°F)27°C (81°F)27°C (81°F)26°C (79°F)26°C (79°F)28°C (82°F)28°C (82°F)
Perceived temperature30°C (86°F)29°C (85°F)30°C (86°F)30°C (86°F)29°C (84°F)29°C (84°F)31°C (88°F)31°C (88°F)
Precipitation0in0.1in0.1in0.1in0.1in0in0in0in
Humidity82%83%79%79%81%83%76%76%
Barometric pressure1009 hPa1007 hPa1008 hPa1009 hPa1008 hPa1006 hPa1007 hPa1008 hPa
Cloud cover77%70%82%75%64%100%100%75%
Heat index30°C (86°F)29°C (85°F)30°C (86°F)30°C (86°F)29°C (84°F)29°C (84°F)31°C (88°F)31°C (88°F)
Dew point23°C (74°F)23°C (74°F)23°C (73°F)23°C (74°F)23°C (73°F)23°C (73°F)23°C (73°F)23°C (74°F)
Wind
Speed7km/h (4mph)9km/h (6mph)12km/h (7mph)8km/h (5mph)6km/h (4mph)7km/h (4mph)18km/h (11mph)14km/h (9mph)
Gusts13km/h (8mph)15km/h (9mph)23km/h (14mph)13km/h (8mph)12km/h (8mph)10km/h (6mph)27km/h (17mph)20km/h (13mph)
Direction 291°
WNW
263°
W
229°
SW
194°
SSW
179°
S
219°
SW
229°
SW
222°
SW
Wind chill27°C (80°F)26°C (80°F)27°C (81°F)27°C (81°F)26°C (79°F)26°C (79°F)28°C (82°F)28°C (82°F)
Waves
Height1.3m (4.1ft)1.4m (4.5ft)1.7m (5.7ft)1.7m (5.6ft)1.7m (5.6ft)1.7m (5.4ft)1.6m (5.2ft)1.5m (4.9ft)
Direction 238°
WSW
240°
WSW
241°
WSW
241°
WSW
240°
WSW
240°
WSW
240°
WSW
240°
WSW
Period4.9 sec.4.9 sec.4.9 sec.4.9 sec.4.9 sec.4.9 sec.4.9 sec.4.9 sec.
Significant height1.2m (3.9ft)1.3m (4.3ft)1.6m (5.2ft)1.4m (4.6ft)1.4m (4.6ft)1.3m (4.3ft)1.3m (4.3ft)1.2m (3.9ft)
Sea water temperature
Water temperature29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)

Sea weather on Saturday 25 July 2026

On Saturday 25 July 2026, the sun will rise at 05:57 and will set at 18:39 on the beach(es) of Koh Chang. The outside temperature will be a high of 83°F t and a low of 77°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 13.1mph km/h (with gusts up to 18.6mph). 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)27°C (80°F)26°C (79°F)25°C (77°F)26°C (78°F)27°C (80°F)27°C (81°F)
Perceived temperature31°C (88°F)31°C (88°F)30°C (86°F)29°C (84°F)28°C (82°F)28°C (83°F)30°C (85°F)30°C (86°F)
Precipitation0.1in0.1in0.1in0.1in0.1in0in0in0in
Humidity80%80%81%86%89%85%78%74%
Barometric pressure1008 hPa1007 hPa1008 hPa1009 hPa1008 hPa1007 hPa1007 hPa1009 hPa
Cloud cover62%80%84%82%74%90%94%51%
Heat index31°C (88°F)31°C (88°F)30°C (86°F)29°C (84°F)28°C (82°F)28°C (83°F)30°C (85°F)30°C (86°F)
Dew point24°C (74°F)24°C (74°F)23°C (74°F)24°C (74°F)23°C (74°F)23°C (73°F)23°C (73°F)22°C (72°F)
Wind
Speed18km/h (11mph)21km/h (13mph)21km/h (13mph)20km/h (13mph)17km/h (10mph)15km/h (9mph)12km/h (8mph)10km/h (6mph)
Gusts21km/h (13mph)25km/h (16mph)26km/h (16mph)30km/h (19mph)27km/h (17mph)21km/h (13mph)16km/h (10mph)14km/h (9mph)
Direction 235°
SW
244°
WSW
236°
SW
224°
SW
227°
SW
242°
WSW
242°
WSW
232°
SW
Wind chill28°C (82°F)28°C (82°F)27°C (80°F)26°C (79°F)25°C (77°F)26°C (78°F)27°C (80°F)27°C (81°F)
Waves
Height1.5m (4.9ft)1.5m (4.9ft)1.5m (4.9ft)1.4m (4.6ft)1.3m (4.3ft)1.2m (3.9ft)1.2m (3.9ft)1.1m (3.6ft)
Direction 239°
WSW
240°
WSW
241°
WSW
236°
SW
233°
SW
233°
SW
232°
SW
232°
SW
Period4.9 sec.4.9 sec.4.9 sec.4.9 sec.4.9 sec.4.9 sec.4.9 sec.4.9 sec.
Significant height1.2m (3.9ft)1.3m (4.3ft)1.2m (3.9ft)1.1m (3.6ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)
Sea water temperature
Water temperature29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)

Sea weather on Sunday 26 July 2026

On Sunday 26 July 2026, the sun will rise at 05:57 and will set at 18:38 on the beach(es) of Koh Chang. The outside temperature will be a high of 83°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 24.9mph). 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)27°C (81°F)27°C (80°F)26°C (79°F)26°C (79°F)27°C (80°F)27°C (81°F)
Perceived temperature31°C (88°F)31°C (88°F)31°C (87°F)30°C (86°F)29°C (84°F)29°C (85°F)30°C (87°F)31°C (87°F)
Precipitation0in0in0.1in0.1in0.1in0.1in0in0in
Humidity75%76%79%84%87%87%87%84%
Barometric pressure1008 hPa1007 hPa1007 hPa1009 hPa1008 hPa1007 hPa1007 hPa1008 hPa
Cloud cover47%68%68%76%94%100%100%92%
Heat index31°C (88°F)31°C (88°F)31°C (87°F)30°C (86°F)29°C (84°F)29°C (85°F)30°C (87°F)31°C (87°F)
Dew point23°C (73°F)23°C (74°F)23°C (74°F)24°C (74°F)24°C (74°F)24°C (75°F)24°C (76°F)24°C (75°F)
Wind
Speed11km/h (7mph)12km/h (7mph)11km/h (7mph)15km/h (9mph)24km/h (15mph)24km/h (15mph)26km/h (16mph)30km/h (18mph)
Gusts15km/h (9mph)16km/h (10mph)18km/h (11mph)27km/h (17mph)30km/h (19mph)31km/h (19mph)35km/h (22mph)40km/h (25mph)
Direction 219°
SW
224°
SW
229°
SW
226°
SW
229°
SW
230°
SW
241°
WSW
244°
WSW
Wind chill28°C (82°F)28°C (82°F)27°C (81°F)27°C (80°F)26°C (79°F)26°C (79°F)27°C (80°F)27°C (81°F)
Waves
Height1.1m (3.6ft)1.1m (3.6ft)1.2m (3.9ft)1.2m (3.9ft)1.3m (4.3ft)1.3m (4.3ft)1.4m (4.6ft)1.3m (4.3ft)
Direction 231°
SW
230°
SW
232°
SW
235°
SW
237°
WSW
236°
SW
235°
SW
235°
SW
Period4.9 sec.4.9 sec.4.9 sec.4.9 sec.4.9 sec.4.9 sec.4.9 sec.4.9 sec.
Significant height1.0m (3.3ft)1.0m (3.3ft)0.9m (3ft)1.0m (3.3ft)1.0m (3.3ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)
Sea water temperature
Water temperature29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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