Sea weather in Chaweng Beach on the island of Koh Samui All the beach weather in Chaweng Beach

All the essential weather information for enjoying the beach in Chaweng Beach on the island of Koh Samui, 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 Chaweng Beach over the next 7 days?

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

Date Outside temp. Our opinion
Thursday 17 April 202581°F to 85°Frecommended
Friday 18 April 202581°F to 85°Frecommended
Saturday 19 April 202581°F to 85°Fdiscouraged
Sunday 20 April 202581°F to 83°Frecommended
Monday 21 April 202576°F to 83°Frecommended
Tuesday 22 April 202579°F to 83°Frecommended
Wednesday 23 April 202579°F to 85°Frecommended

Sea Weather: Your daily and hourly sea weather in Chaweng Beach

Sea weather on Thursday 17 April 2025

On Thursday 17 April 2025, the sun will rise at 06:10 and will set at 18:31 on the beach(es) of Chaweng Beach. 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 11.2mph km/h (with gusts up to 16.8mph). 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)27°C (81°F)27°C (81°F)28°C (82°F)28°C (83°F)28°C (82°F)28°C (83°F)28°C (82°F)
Perceived temperature33°C (91°F)31°C (88°F)31°C (87°F)31°C (89°F)32°C (89°F)32°C (89°F)32°C (90°F)32°C (89°F)
Precipitation0in0in0.1in0in0in0in0in0in
Humidity73%79%77%74%71%75%76%76%
Barometric pressure1010 hPa1009 hPa1009 hPa1012 hPa1010 hPa1008 hPa1008 hPa1009 hPa
Cloud cover54%83%63%54%88%90%74%48%
Heat index33°C (91°F)31°C (88°F)31°C (87°F)31°C (89°F)32°C (89°F)32°C (89°F)32°C (90°F)32°C (89°F)
Dew point24°C (74°F)23°C (74°F)23°C (73°F)23°C (73°F)23°C (73°F)23°C (74°F)24°C (74°F)23°C (74°F)
Wind
Speed10km/h (6mph)5km/h (3mph)2km/h (1mph)5km/h (3mph)9km/h (6mph)9km/h (6mph)14km/h (9mph)18km/h (11mph)
Gusts14km/h (9mph)8km/h (5mph)4km/h (3mph)7km/h (5mph)13km/h (8mph)14km/h (8mph)20km/h (13mph)27km/h (17mph)
Direction 104°
ESE
134°
SE
233°
SW
252°
WSW
271°
W
247°
WSW
238°
WSW
251°
WSW
Wind chill29°C (84°F)27°C (81°F)27°C (81°F)28°C (82°F)28°C (83°F)28°C (82°F)28°C (83°F)28°C (82°F)
Waves
Height0.1m (0.3ft)0.1m (0.4ft)0.1m (0.4ft)0.6m (1.8ft)0.1m (0.4ft)0.1m (0.4ft)0.1m (0.4ft)0.6m (1.8ft)
Direction 142°
SE
251°
WSW
249°
WSW
248°
WSW
274°
W
286°
WNW
290°
WNW
253°
WSW
Period2.1 sec.2.1 sec.2.1 sec.2.1 sec.2.1 sec.2.1 sec.1.8 sec.1.8 sec.
Significant height0.2m (0.7ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)0.4m (1.3ft)0.3m (1ft)0.1m (0.3ft)0.2m (0.7ft)
Sea water temperature
Water temperature30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)

Sea weather on Friday 18 April 2025

On Friday 18 April 2025, the sun will rise at 06:09 and will set at 18:31 on the beach(es) of Chaweng Beach. 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 9.9mph km/h (with gusts up to 14.9mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (82°F)27°C (80°F)27°C (80°F)28°C (82°F)29°C (83°F)28°C (83°F)28°C (83°F)28°C (82°F)
Perceived temperature31°C (88°F)30°C (86°F)30°C (86°F)31°C (88°F)32°C (89°F)32°C (89°F)32°C (89°F)32°C (89°F)
Precipitation0in0in0in0in0in0.1in0.1in0in
Humidity78%78%79%73%69%71%73%76%
Barometric pressure1009 hPa1008 hPa1009 hPa1011 hPa1010 hPa1006 hPa1007 hPa1008 hPa
Cloud cover44%47%45%26%30%51%100%55%
Heat index31°C (88°F)30°C (86°F)30°C (86°F)31°C (88°F)32°C (89°F)32°C (89°F)32°C (89°F)32°C (89°F)
Dew point23°C (74°F)23°C (73°F)23°C (73°F)23°C (73°F)22°C (72°F)23°C (73°F)23°C (74°F)23°C (74°F)
Wind
Speed15km/h (9mph)14km/h (9mph)16km/h (10mph)14km/h (9mph)9km/h (6mph)4km/h (2mph)8km/h (5mph)11km/h (7mph)
Gusts21km/h (13mph)21km/h (13mph)24km/h (15mph)18km/h (11mph)13km/h (8mph)6km/h (4mph)15km/h (10mph)17km/h (10mph)
Direction 275°
W
246°
WSW
240°
WSW
243°
WSW
271°
W
49°
NE
268°
W
252°
WSW
Wind chill28°C (82°F)27°C (80°F)27°C (80°F)28°C (82°F)29°C (83°F)28°C (83°F)28°C (83°F)28°C (82°F)
Waves
Height0.2m (0.7ft)0.6m (2.0ft)0.2m (0.7ft)0.4m (1.2ft)0.4m (1.2ft)0.1m (0.4ft)0.1m (0.5ft)0.3m (0.9ft)
Direction 231°
SW
245°
WSW
250°
WSW
255°
WSW
265°
W
295°
WNW
283°
WNW
245°
WSW
Period1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.9 sec.1.9 sec.1.9 sec.
Significant height0.2m (0.7ft)0.3m (1ft)0.2m (0.7ft)0.2m (0.7ft)0.3m (1ft)0.2m (0.7ft)0.5m (1.6ft)0.7m (2.3ft)
Sea water temperature
Water temperature30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)

Sea weather on Saturday 19 April 2025

On Saturday 19 April 2025, the sun will rise at 06:09 and will set at 18:31 on the beach(es) of Chaweng Beach. 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 19.3mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (83°F)28°C (82°F)27°C (81°F)29°C (83°F)29°C (83°F)29°C (83°F)28°C (83°F)27°C (81°F)
Perceived temperature32°C (90°F)31°C (88°F)31°C (87°F)32°C (90°F)32°C (90°F)32°C (90°F)32°C (89°F)31°C (88°F)
Precipitation0in0in0in0in0.1in0in0.1in0in
Humidity76%77%78%74%73%71%75%79%
Barometric pressure1008 hPa1007 hPa1008 hPa1010 hPa1009 hPa1006 hPa1007 hPa1009 hPa
Cloud cover81%52%55%68%78%88%81%72%
Heat index32°C (90°F)31°C (88°F)31°C (87°F)32°C (90°F)32°C (90°F)32°C (90°F)32°C (89°F)31°C (88°F)
Dew point24°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (73°F)23°C (74°F)23°C (74°F)
Wind
Speed21km/h (13mph)21km/h (13mph)20km/h (13mph)19km/h (12mph)15km/h (9mph)6km/h (4mph)8km/h (5mph)20km/h (13mph)
Gusts30km/h (19mph)31km/h (19mph)29km/h (18mph)24km/h (15mph)22km/h (14mph)9km/h (5mph)15km/h (9mph)31km/h (19mph)
Direction 224°
SW
235°
SW
236°
WSW
240°
WSW
262°
W
257°
WSW
223°
SW
217°
SW
Wind chill28°C (83°F)28°C (82°F)27°C (81°F)29°C (83°F)29°C (83°F)29°C (83°F)28°C (83°F)27°C (81°F)
Waves
Height0.3m (0.9ft)0.3m (0.9ft)0.2m (0.7ft)0.1m (0.5ft)0.4m (1.3ft)0.1m (0.3ft)0.2m (0.7ft)0.2m (0.6ft)
Direction 232°
SW
226°
SW
234°
SW
236°
SW
257°
WSW
278°
W
130°
SE
212°
SSW
Period1.9 sec.1.9 sec.1.9 sec.1.9 sec.1.9 sec.1.9 sec.1.9 sec.1.9 sec.
Significant height0.7m (2.3ft)0.6m (2ft)0.5m (1.6ft)0.3m (1ft)0.1m (0.3ft)0.3m (1ft)0.2m (0.7ft)0.2m (0.7ft)
Sea water temperature
Water temperature30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)

Sea weather on Sunday 20 April 2025

On Sunday 20 April 2025, the sun will rise at 06:08 and will set at 18:31 on the beach(es) of Chaweng Beach. The outside temperature will be a high of 83°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 11.8mph km/h (with gusts up to 21.8mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature27°C (81°F)27°C (80°F)27°C (81°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)27°C (80°F)
Perceived temperature31°C (87°F)30°C (86°F)30°C (86°F)31°C (89°F)31°C (88°F)32°C (89°F)31°C (89°F)30°C (86°F)
Precipitation0in0in0in0in0in0.1in0.1in0in
Humidity79%80%79%75%75%74%75%79%
Barometric pressure1009 hPa1007 hPa1008 hPa1010 hPa1010 hPa1007 hPa1008 hPa1011 hPa
Cloud cover83%27%37%24%70%89%85%88%
Heat index31°C (87°F)30°C (86°F)30°C (86°F)31°C (89°F)31°C (88°F)32°C (89°F)31°C (89°F)30°C (86°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 (74°F)23°C (73°F)
Wind
Speed19km/h (12mph)19km/h (12mph)14km/h (9mph)12km/h (7mph)5km/h (3mph)9km/h (6mph)6km/h (4mph)19km/h (12mph)
Gusts35km/h (22mph)28km/h (17mph)21km/h (13mph)16km/h (10mph)7km/h (4mph)14km/h (8mph)12km/h (7mph)28km/h (18mph)
Direction 238°
WSW
237°
WSW
234°
SW
235°
SW
197°
SSW
137°
SE
214°
SSW
250°
WSW
Wind chill27°C (81°F)27°C (80°F)27°C (81°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)27°C (80°F)
Waves
Height0.1m (0.4ft)0.2m (0.7ft)0.1m (0.4ft)0.2m (0.5ft)0.2m (0.7ft)0.1m (0.5ft)0.6m (1.9ft)0.5m (1.5ft)
Direction 251°
WSW
244°
WSW
252°
WSW
257°
WSW
276°
W
297°
WNW
315°
NW
309°
NW
Period1.9 sec.1.9 sec.1.9 sec.1.9 sec.1.9 sec.1.9 sec.1.9 sec.1.9 sec.
Significant height0.4m (1.3ft)0.5m (1.6ft)0.3m (1ft)0.4m (1.3ft)0.5m (1.6ft)0.4m (1.3ft)0.3m (1ft)0.3m (1ft)
Sea water temperature
Water temperature30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)

Sea weather on Monday 21 April 2025

On Monday 21 April 2025, the sun will rise at 06:08 and will set at 18:31 on the beach(es) of Chaweng Beach. 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 10.6mph km/h (with gusts up to 16.8mph). Wave height will be up to 2ft 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)27°C (81°F)24°C (76°F)26°C (80°F)28°C (82°F)28°C (83°F)
Perceived temperature30°C (86°F)29°C (85°F)29°C (84°F)30°C (87°F)26°C (79°F)29°C (83°F)31°C (88°F)32°C (89°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity78%79%80%75%73%72%74%76%
Barometric pressure1011 hPa1008 hPa1009 hPa1011 hPa1011 hPa1008 hPa1009 hPa1011 hPa
Cloud cover40%27%12%20%11%6%85%18%
Heat index30°C (86°F)29°C (85°F)29°C (84°F)30°C (87°F)26°C (79°F)29°C (83°F)31°C (88°F)32°C (89°F)
Dew point23°C (73°F)23°C (73°F)22°C (72°F)23°C (73°F)19°C (67°F)21°C (70°F)23°C (73°F)23°C (74°F)
Wind
Speed17km/h (11mph)11km/h (7mph)8km/h (5mph)4km/h (2mph)3km/h (2mph)9km/h (6mph)13km/h (8mph)10km/h (6mph)
Gusts27km/h (17mph)16km/h (10mph)12km/h (7mph)5km/h (3mph)7km/h (4mph)17km/h (11mph)21km/h (13mph)15km/h (9mph)
Direction 277°
W
256°
WSW
242°
WSW
263°
W
350°
N
61°
ENE
76°
ENE
100°
E
Wind chill27°C (81°F)27°C (80°F)26°C (79°F)27°C (81°F)24°C (76°F)26°C (80°F)28°C (82°F)28°C (83°F)
Waves
Height0.6m (1.8ft)0.1m (0.4ft)0.1m (0.3ft)0.3m (1.1ft)0.2m (0.8ft)0.5m (1.6ft)0.2m (0.7ft)0.1m (0.3ft)
Direction 317°
NW
317°
NW
313°
NW
2571°
920°
7523°
9174°
3421°
Period1.9 sec.1.9 sec.1.9 sec.1.7 sec.1.7 sec.1.7 sec.1.7 sec.1.7 sec.
Significant height0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.1m (0.3ft)0.2m (0.7ft)0.3m (1ft)0.3m (1ft)
Sea water temperature
Water temperature30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)

Sea weather on Tuesday 22 April 2025

On Tuesday 22 April 2025, the sun will rise at 06:07 and will set at 18:31 on the beach(es) of Chaweng Beach. The outside temperature will be a high of 83°F t and a low of 79°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 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (82°F)27°C (81°F)27°C (81°F)28°C (82°F)26°C (80°F)27°C (80°F)28°C (82°F)28°C (83°F)
Perceived temperature32°C (89°F)31°C (88°F)31°C (87°F)32°C (89°F)29°C (84°F)29°C (84°F)31°C (88°F)32°C (90°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity77%78%80%77%74%71%73%74%
Barometric pressure1010 hPa1009 hPa1010 hPa1012 hPa1011 hPa1010 hPa1010 hPa1011 hPa
Cloud cover26%29%28%19%8%4%3%4%
Heat index32°C (89°F)31°C (88°F)31°C (87°F)32°C (89°F)29°C (84°F)29°C (84°F)31°C (88°F)32°C (90°F)
Dew point23°C (74°F)23°C (74°F)24°C (74°F)24°C (74°F)21°C (71°F)21°C (70°F)23°C (73°F)23°C (74°F)
Wind
Speed5km/h (3mph)5km/h (3mph)7km/h (4mph)5km/h (3mph)6km/h (4mph)10km/h (6mph)12km/h (8mph)13km/h (8mph)
Gusts8km/h (5mph)7km/h (4mph)10km/h (6mph)7km/h (4mph)11km/h (7mph)19km/h (12mph)20km/h (13mph)21km/h (13mph)
Direction 145°
SE
200°
SSW
213°
SSW
195°
SSW
96°
E
68°
ENE
98°
E
130°
SE
Wind chill28°C (82°F)27°C (81°F)27°C (81°F)28°C (82°F)26°C (80°F)27°C (80°F)28°C (82°F)28°C (83°F)
Waves
Height0.1m (0.3ft)0.1m (0.3ft)0.4m (1.3ft)0.4m (1.3ft)0.3m (1.0ft)0.2m (0.7ft)0.1m (0.3ft)0.1m (0.3ft)
Direction 135°
SE
154°
SSE
175°
S
181°
S
178°
S
6725°
9999°
3411°
Period1.7 sec.1.7 sec.1.7 sec.1.7 sec.1.7 sec.1.7 sec.1.7 sec.1.7 sec.
Significant height0.3m (1ft)0.3m (1ft)0.2m (0.7ft)0.2m (0.7ft)0.1m (0.3ft)0.2m (0.7ft)0.3m (1ft)0.4m (1.3ft)
Sea water temperature
Water temperature30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)

Sea weather on Wednesday 23 April 2025

On Wednesday 23 April 2025, the sun will rise at 06:07 and will set at 18:31 on the beach(es) of Chaweng Beach. The outside temperature will be a high of 85°F t and a low of 79°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 7.5mph km/h (with gusts up to 12.4mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (83°F)28°C (82°F)28°C (82°F)29°C (83°F)27°C (80°F)27°C (81°F)28°C (83°F)29°C (83°F)
Perceived temperature32°C (89°F)31°C (89°F)31°C (88°F)33°C (91°F)30°C (85°F)29°C (85°F)32°C (89°F)33°C (91°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity76%79%79%76%74%72%72%75%
Barometric pressure1011 hPa1010 hPa1010 hPa1012 hPa1011 hPa1008 hPa1008 hPa1010 hPa
Cloud cover13%25%34%41%24%11%10%16%
Heat index32°C (89°F)31°C (89°F)31°C (88°F)33°C (91°F)30°C (85°F)29°C (85°F)32°C (89°F)33°C (91°F)
Dew point23°C (74°F)24°C (74°F)24°C (74°F)24°C (75°F)22°C (71°F)21°C (71°F)23°C (73°F)24°C (74°F)
Wind
Speed12km/h (7mph)8km/h (5mph)7km/h (4mph)8km/h (5mph)10km/h (6mph)9km/h (5mph)8km/h (5mph)8km/h (5mph)
Gusts17km/h (11mph)12km/h (8mph)10km/h (6mph)10km/h (6mph)20km/h (12mph)17km/h (11mph)14km/h (9mph)12km/h (7mph)
Direction 160°
SSE
201°
SSW
242°
WSW
290°
WNW
322°
NW
155°
SSE
100°
E
161°
SSE
Wind chill28°C (83°F)28°C (82°F)28°C (82°F)29°C (83°F)27°C (80°F)27°C (81°F)28°C (83°F)29°C (83°F)
Waves
Height0.1m (0.3ft)0.2m (0.7ft)0.2m (0.7ft)0.1m (0.3ft)0.3m (1.0ft)0.4m (1.3ft)0.2m (0.7ft)0.3m (1.0ft)
Direction 127°
SE
134°
SE
134°
SE
130°
SE
123°
ESE
6706°
9999°
3415°
Period1.7 sec.1.7 sec.1.7 sec.1.7 sec.1.7 sec.1.7 sec.1.7 sec.1.7 sec.
Significant height0.3m (1ft)0.3m (1ft)0.2m (0.7ft)0.2m (0.7ft)0.1m (0.3ft)0.2m (0.7ft)0.3m (1ft)0.3m (1ft)
Sea water temperature
Water temperature30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)30°C (87°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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