Sea weather in Koh Madsum on the island of Koh Samui All the beach weather in Koh Madsum

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

Discover the best moment to go to the beach in Koh Madsum 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 Koh Madsum. 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 May 202483°F to 86°Frecommended
Sunday 19 May 202483°F to 88°Frecommended
Monday 20 May 202483°F to 88°Fdiscouraged
Tuesday 21 May 202481°F to 86°Fdiscouraged
Wednesday 22 May 202483°F to 86°Fdiscouraged
Thursday 23 May 202483°F to 88°Frecommended
Friday 24 May 202485°F to 86°Frecommended

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

Sea weather on Saturday 18 May 2024

On Saturday 18 May 2024, the sun will rise at 06:00 and will set at 18:34 on the beach(es) of Koh Madsum. The outside temperature will be a high of 86°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 6.2mph km/h (with gusts up to 9.3mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (84°F)28°C (83°F)28°C (83°F)29°C (84°F)29°C (84°F)30°C (85°F)30°C (86°F)30°C (86°F)
Perceived temperature33°C (92°F)33°C (91°F)33°C (91°F)34°C (93°F)33°C (92°F)34°C (93°F)35°C (96°F)35°C (95°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity77%80%80%75%74%71%71%73%
Barometric pressure1009 hPa1007 hPa1007 hPa1009 hPa1007 hPa1005 hPa1005 hPa1007 hPa
Cloud cover81%26%25%35%89%24%75%22%
Heat index33°C (92°F)33°C (91°F)33°C (91°F)34°C (93°F)33°C (92°F)34°C (93°F)35°C (96°F)35°C (95°F)
Dew point24°C (76°F)24°C (76°F)24°C (76°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (76°F)25°C (76°F)
Wind
Speed3km/h (2mph)7km/h (4mph)8km/h (5mph)6km/h (4mph)5km/h (3mph)6km/h (4mph)7km/h (4mph)10km/h (6mph)
Gusts5km/h (3mph)10km/h (6mph)11km/h (7mph)8km/h (5mph)7km/h (4mph)9km/h (6mph)10km/h (6mph)15km/h (9mph)
Direction 259°
WSW
201°
SSW
217°
SW
240°
WSW
311°
NW
85°
E
123°
ESE
244°
WSW
Wind chill29°C (84°F)28°C (83°F)28°C (83°F)29°C (84°F)29°C (84°F)30°C (85°F)30°C (86°F)30°C (86°F)
Waves
Height0.1m (0.3ft)0.4m (1.5ft)0.4m (1.3ft)0.4m (1.3ft)0.2m (0.7ft)0.3m (1.0ft)0.1m (0.3ft)0.4m (1.4ft)
Direction 66°
ENE
240°
WSW
251°
WSW
245°
WSW
249°
WSW
256°
WSW
125°
SE
128°
SE
Period2.0 sec.2.0 sec.2.0 sec.2.0 sec.2.0 sec.2.0 sec.2.0 sec.2.0 sec.
Significant height0.3m (1ft)0.3m (1ft)0.3m (1ft)0.2m (0.7ft)0.2m (0.7ft)0.1m (0.3ft)0.3m (1ft)0.2m (0.7ft)
Sea water temperature
Water temperature31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)

Sea weather on Sunday 19 May 2024

On Sunday 19 May 2024, the sun will rise at 06:00 and will set at 18:34 on the beach(es) of Koh Madsum. The outside temperature will be a high of 88°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 9.9mph km/h (with gusts up to 16.2mph). Wave height will be up to 0.7ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (85°F)28°C (83°F)28°C (83°F)29°C (85°F)31°C (87°F)31°C (87°F)30°C (86°F)30°C (85°F)
Perceived temperature35°C (94°F)33°C (92°F)33°C (91°F)35°C (95°F)36°C (96°F)36°C (97°F)36°C (97°F)36°C (96°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity78%82%80%76%68%69%73%76%
Barometric pressure1007 hPa1005 hPa1006 hPa1008 hPa1006 hPa1004 hPa1004 hPa1005 hPa
Cloud cover20%70%23%80%23%72%82%83%
Heat index35°C (94°F)33°C (92°F)33°C (91°F)35°C (95°F)36°C (96°F)36°C (97°F)36°C (97°F)36°C (96°F)
Dew point25°C (77°F)25°C (77°F)25°C (76°F)25°C (77°F)24°C (75°F)24°C (76°F)25°C (77°F)25°C (77°F)
Wind
Speed15km/h (9mph)15km/h (9mph)16km/h (10mph)15km/h (9mph)13km/h (8mph)7km/h (4mph)13km/h (8mph)14km/h (9mph)
Gusts22km/h (14mph)22km/h (14mph)26km/h (16mph)20km/h (12mph)20km/h (12mph)11km/h (7mph)19km/h (12mph)22km/h (13mph)
Direction 229°
SW
233°
SW
234°
SW
243°
WSW
271°
W
18°
NNE
129°
SE
175°
S
Wind chill29°C (85°F)28°C (83°F)28°C (83°F)29°C (85°F)31°C (87°F)31°C (87°F)30°C (86°F)30°C (85°F)
Waves
Height0.1m (0.4ft)0.2m (0.5ft)0.1m (0.4ft)0.2m (0.5ft)0.2m (0.6ft)0.2m (0.5ft)0.1m (0.4ft)0.2m (0.6ft)
Direction 251°
WSW
247°
WSW
247°
WSW
249°
WSW
272°
W
311°
NW
165°
SSE
226°
SW
Period2.0 sec.2.0 sec.2.0 sec.2.0 sec.2.0 sec.2.0 sec.1.8 sec.1.8 sec.
Significant height0.3m (1ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.5m (1.6ft)0.3m (1ft)0.4m (1.3ft)0.5m (1.6ft)
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 on Monday 20 May 2024

On Monday 20 May 2024, the sun will rise at 06:00 and will set at 18:35 on the beach(es) of Koh Madsum. The outside temperature will be a high of 88°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 13.7mph km/h (with gusts up to 19.9mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (85°F)29°C (84°F)28°C (83°F)30°C (85°F)31°C (87°F)31°C (87°F)30°C (87°F)30°C (86°F)
Perceived temperature35°C (95°F)33°C (92°F)33°C (91°F)35°C (94°F)36°C (96°F)35°C (96°F)37°C (98°F)36°C (97°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity77%77%78%72%67%66%73%76%
Barometric pressure1005 hPa1004 hPa1006 hPa1008 hPa1006 hPa1004 hPa1004 hPa1005 hPa
Cloud cover77%77%42%30%32%74%78%86%
Heat index35°C (95°F)33°C (92°F)33°C (91°F)35°C (94°F)36°C (96°F)35°C (96°F)37°C (98°F)36°C (97°F)
Dew point25°C (77°F)24°C (76°F)24°C (76°F)24°C (75°F)24°C (75°F)24°C (74°F)25°C (77°F)25°C (77°F)
Wind
Speed19km/h (12mph)21km/h (13mph)22km/h (14mph)21km/h (13mph)16km/h (10mph)8km/h (5mph)12km/h (8mph)18km/h (11mph)
Gusts28km/h (18mph)31km/h (19mph)32km/h (20mph)27km/h (17mph)23km/h (15mph)12km/h (8mph)19km/h (12mph)28km/h (18mph)
Direction 223°
SW
241°
WSW
248°
WSW
250°
WSW
282°
WNW
40°
NE
252°
WSW
220°
SW
Wind chill29°C (85°F)29°C (84°F)28°C (83°F)30°C (85°F)31°C (87°F)31°C (87°F)30°C (87°F)30°C (86°F)
Waves
Height0.2m (0.6ft)0.4m (1.4ft)0.2m (0.6ft)0.2m (0.8ft)0.2m (0.8ft)0.5m (1.5ft)0.2m (0.8ft)0.1m (0.4ft)
Direction 240°
WSW
242°
WSW
249°
WSW
252°
WSW
253°
WSW
261°
W
142°
SE
244°
WSW
Period1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.9 sec.1.9 sec.1.5 sec.
Significant height0.4m (1.3ft)0.3m (1ft)0.5m (1.6ft)0.6m (2ft)0.5m (1.6ft)0.1m (0.3ft)0.3m (1ft)0.4m (1.3ft)
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 Tuesday 21 May 2024

On Tuesday 21 May 2024, the sun will rise at 06:00 and will set at 18:35 on the beach(es) of Koh Madsum. The outside temperature will be a high of 86°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 13.1mph km/h (with gusts up to 19.3mph). Wave height will be up to 1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (85°F)29°C (84°F)29°C (83°F)30°C (85°F)30°C (87°F)30°C (86°F)30°C (85°F)27°C (81°F)
Perceived temperature35°C (95°F)33°C (92°F)33°C (92°F)35°C (95°F)35°C (96°F)35°C (95°F)35°C (95°F)32°C (89°F)
Precipitation0in0in0in0in0in0in0.1in0in
Humidity77%77%78%72%68%69%75%87%
Barometric pressure1007 hPa1005 hPa1006 hPa1007 hPa1006 hPa1004 hPa1004 hPa1007 hPa
Cloud cover83%89%79%26%35%83%83%81%
Heat index35°C (95°F)33°C (92°F)33°C (92°F)35°C (95°F)35°C (96°F)35°C (95°F)35°C (95°F)32°C (89°F)
Dew point25°C (77°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (75°F)24°C (75°F)25°C (77°F)25°C (77°F)
Wind
Speed18km/h (11mph)21km/h (13mph)21km/h (13mph)20km/h (13mph)13km/h (8mph)14km/h (9mph)17km/h (10mph)20km/h (13mph)
Gusts28km/h (17mph)31km/h (19mph)30km/h (19mph)27km/h (17mph)18km/h (11mph)21km/h (13mph)24km/h (15mph)29km/h (18mph)
Direction 229°
SW
238°
WSW
248°
WSW
250°
WSW
296°
WNW
74°
ENE
141°
SE
230°
SW
Wind chill29°C (85°F)29°C (84°F)29°C (83°F)30°C (85°F)30°C (87°F)30°C (86°F)30°C (85°F)27°C (81°F)
Waves
Height0.2m (0.7ft)0.2m (0.7ft)0.2m (0.8ft)0.2m (0.8ft)0.2m (0.8ft)0.1m (0.4ft)0.1m (0.4ft)0.3m (1.0ft)
Direction 244°
WSW
239°
WSW
241°
WSW
251°
WSW
286°
WNW
317°
NW
330°
NNW
151°
SSE
Period1.5 sec.1.5 sec.1.5 sec.1.5 sec.1.5 sec.2.0 sec.1.9 sec.1.9 sec.
Significant height0.6m (2ft)0.5m (1.6ft)0.6m (2ft)0.5m (1.6ft)0.6m (2ft)0.3m (1ft)0.2m (0.7ft)0.3m (1ft)
Sea water temperature
Water temperature31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)

Sea weather on Wednesday 22 May 2024

On Wednesday 22 May 2024, the sun will rise at 06:00 and will set at 18:35 on the beach(es) of Koh Madsum. The outside temperature will be a high of 86°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 14.3mph km/h (with gusts up to 20.5mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (82°F)28°C (83°F)28°C (83°F)29°C (85°F)29°C (83°F)29°C (84°F)29°C (83°F)28°C (83°F)
Perceived temperature32°C (90°F)33°C (91°F)33°C (91°F)34°C (93°F)33°C (91°F)33°C (91°F)33°C (91°F)33°C (91°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity81%78%77%75%76%74%76%80%
Barometric pressure1007 hPa1005 hPa1005 hPa1007 hPa1007 hPa1005 hPa1005 hPa1007 hPa
Cloud cover58%78%53%81%96%77%51%67%
Heat index32°C (90°F)33°C (91°F)33°C (91°F)34°C (93°F)33°C (91°F)33°C (91°F)33°C (91°F)33°C (91°F)
Dew point24°C (76°F)24°C (76°F)24°C (75°F)24°C (76°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (76°F)
Wind
Speed10km/h (6mph)9km/h (6mph)5km/h (3mph)10km/h (6mph)7km/h (4mph)7km/h (4mph)23km/h (14mph)19km/h (12mph)
Gusts17km/h (11mph)14km/h (9mph)7km/h (4mph)14km/h (9mph)15km/h (9mph)10km/h (6mph)33km/h (20mph)28km/h (17mph)
Direction 240°
WSW
227°
SW
193°
SSW
150°
SSE
119°
ESE
267°
W
235°
SW
205°
SSW
Wind chill28°C (82°F)28°C (83°F)28°C (83°F)29°C (85°F)29°C (83°F)29°C (84°F)29°C (83°F)28°C (83°F)
Waves
Height0.1m (0.4ft)0.1m (0.4ft)0.2m (0.7ft)0.3m (0.9ft)0.5m (1.6ft)0.3m (0.8ft)0.3m (1.0ft)0.3m (1.0ft)
Direction 154°
SSE
132°
SE
134°
SE
196°
SSW
225°
SW
147°
SSE
129°
SE
196°
SSW
Period1.9 sec.1.9 sec.2.0 sec.1.3 sec.1.7 sec.1.8 sec.1.9 sec.1.9 sec.
Significant height0.3m (1ft)0.1m (0.3ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.3m (1ft)0.2m (0.7ft)0.6m (2ft)
Sea water temperature
Water temperature31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (89°F)

Sea weather on Thursday 23 May 2024

On Thursday 23 May 2024, the sun will rise at 06:00 and will set at 18:35 on the beach(es) of Koh Madsum. The outside temperature will be a high of 88°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 11.2mph km/h (with gusts up to 16.8mph). Wave height will be up to 1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (82°F)28°C (83°F)28°C (83°F)29°C (84°F)30°C (85°F)30°C (87°F)30°C (86°F)29°C (85°F)
Perceived temperature32°C (90°F)32°C (90°F)33°C (91°F)33°C (92°F)34°C (94°F)36°C (97°F)35°C (96°F)35°C (94°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity81%79%78%74%70%70%73%75%
Barometric pressure1007 hPa1005 hPa1006 hPa1007 hPa1006 hPa1004 hPa1004 hPa1006 hPa
Cloud cover66%79%49%50%79%78%55%45%
Heat index32°C (90°F)32°C (90°F)33°C (91°F)33°C (92°F)34°C (94°F)36°C (97°F)35°C (96°F)35°C (94°F)
Dew point24°C (76°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (76°F)25°C (76°F)24°C (76°F)
Wind
Speed10km/h (6mph)13km/h (8mph)17km/h (11mph)13km/h (8mph)15km/h (9mph)18km/h (11mph)15km/h (9mph)11km/h (7mph)
Gusts15km/h (9mph)18km/h (11mph)24km/h (15mph)18km/h (11mph)21km/h (13mph)27km/h (17mph)23km/h (14mph)17km/h (11mph)
Direction 196°
SSW
220°
SW
221°
SW
196°
SSW
209°
SSW
231°
SW
202°
SSW
153°
SSE
Wind chill28°C (82°F)28°C (83°F)28°C (83°F)29°C (84°F)30°C (85°F)30°C (87°F)30°C (86°F)29°C (85°F)
Waves
Height0.3m (1.0ft)0.3m (1.0ft)0.2m (0.7ft)0.1m (0.3ft)0.3m (1.0ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)
Direction 236°
WSW
223°
SW
212°
SSW
182°
S
157°
SSE
159°
SSE
156°
SSE
150°
SSE
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 height0.8m (2.6ft)0.7m (2.3ft)0.4m (1.3ft)0.4m (1.3ft)0.7m (2.3ft)0.6m (2ft)0.5m (1.6ft)0.6m (2ft)
Sea water temperature
Water temperature31°C (89°F)31°C (89°F)31°C (89°F)31°C (89°F)31°C (89°F)31°C (89°F)31°C (89°F)31°C (89°F)

Sea weather on Friday 24 May 2024

On Friday 24 May 2024, the sun will rise at 05:59 and will set at 18:36 on the beach(es) of Koh Madsum. The outside temperature will be a high of 86°F t and a low of 85°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 10.6mph). Wave height will be up to 1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (85°F)29°C (85°F)29°C (84°F)30°C (85°F)29°C (85°F)30°C (86°F)30°C (86°F)30°C (85°F)
Perceived temperature34°C (94°F)34°C (93°F)33°C (92°F)34°C (93°F)34°C (92°F)34°C (93°F)34°C (94°F)34°C (94°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity75%73%74%70%69%66%66%69%
Barometric pressure1006 hPa1005 hPa1005 hPa1007 hPa1006 hPa1005 hPa1005 hPa1007 hPa
Cloud cover45%46%47%37%59%42%23%26%
Heat index34°C (94°F)34°C (93°F)33°C (92°F)34°C (93°F)34°C (92°F)34°C (93°F)34°C (94°F)34°C (94°F)
Dew point24°C (76°F)24°C (75°F)24°C (75°F)24°C (74°F)23°C (74°F)23°C (73°F)23°C (74°F)23°C (74°F)
Wind
Speed9km/h (6mph)9km/h (6mph)10km/h (6mph)10km/h (6mph)9km/h (5mph)5km/h (3mph)8km/h (5mph)11km/h (7mph)
Gusts14km/h (9mph)13km/h (8mph)15km/h (9mph)14km/h (9mph)12km/h (8mph)8km/h (5mph)13km/h (8mph)17km/h (11mph)
Direction 150°
SSE
168°
SSE
156°
SSE
170°
S
151°
SSE
166°
SSE
218°
SW
223°
SW
Wind chill29°C (85°F)29°C (85°F)29°C (84°F)30°C (85°F)29°C (85°F)30°C (86°F)30°C (86°F)30°C (85°F)
Waves
Height0.3m (1.0ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (1.0ft)0.2m (0.7ft)0.3m (1.0ft)0.3m (1.0ft)0.2m (0.7ft)
Direction 158°
SSE
165°
SSE
159°
SSE
161°
SSE
149°
SSE
122°
ESE
116°
ESE
127°
SE
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 height0.6m (2ft)0.7m (2.3ft)0.8m (2.6ft)0.7m (2.3ft)0.6m (2ft)0.9m (3ft)0.8m (2.6ft)0.6m (2ft)
Sea water temperature
Water temperature31°C (89°F)31°C (89°F)31°C (89°F)31°C (89°F)31°C (89°F)31°C (89°F)31°C (89°F)31°C (89°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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