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
Sunday 19 May 202485°F to 88°Frecommended
Monday 20 May 202483°F to 90°Frecommended
Tuesday 21 May 202481°F to 88°Fdiscouraged
Wednesday 22 May 202483°F to 85°Frecommended
Thursday 23 May 202483°F to 86°Frecommended
Friday 24 May 202483°F to 86°Frecommended
Saturday 25 May 202483°F to 86°Fdiscouraged

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

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 85°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 8.7mph km/h (with gusts up to 13.7mph). 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)29°C (84°F)29°C (83°F)29°C (85°F)30°C (87°F)30°C (87°F)30°C (85°F)29°C (85°F)
Perceived temperature34°C (94°F)34°C (93°F)34°C (92°F)35°C (95°F)36°C (96°F)36°C (97°F)35°C (95°F)34°C (94°F)
Precipitation0.1in0in0in0in0in0in0in0in
Humidity81%80%80%76%69%72%76%75%
Barometric pressure1006 hPa1004 hPa1005 hPa1007 hPa1006 hPa1004 hPa1005 hPa1006 hPa
Cloud cover61%71%62%50%89%84%84%40%
Heat index34°C (94°F)34°C (93°F)34°C (92°F)35°C (95°F)36°C (96°F)36°C (97°F)35°C (95°F)34°C (94°F)
Dew point25°C (77°F)25°C (77°F)25°C (76°F)25°C (77°F)24°C (75°F)25°C (77°F)25°C (77°F)24°C (76°F)
Wind
Speed13km/h (8mph)12km/h (7mph)14km/h (9mph)12km/h (7mph)12km/h (7mph)13km/h (8mph)11km/h (7mph)3km/h (2mph)
Gusts22km/h (14mph)18km/h (11mph)21km/h (13mph)16km/h (10mph)20km/h (13mph)20km/h (13mph)21km/h (13mph)4km/h (3mph)
Direction 224°
SW
237°
WSW
220°
SW
236°
WSW
280°
W
352°
N
324°
NW
289°
WNW
Wind chill29°C (84°F)29°C (84°F)29°C (83°F)29°C (85°F)30°C (87°F)30°C (87°F)30°C (85°F)29°C (85°F)
Waves
Height0.4m (1.4ft)0.3m (1.0ft)0.2m (0.6ft)0.2m (0.7ft)0.3m (1.0ft)0.2m (0.7ft)0.1m (0.5ft)0.2m (0.6ft)
Direction 233°
SW
235°
SW
245°
WSW
255°
WSW
270°
W
291°
WNW
127°
SE
116°
ESE
Period0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.
Significant height0.2m (0.7ft)0.3m (1ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.4m (1.3ft)0.2m (0.7ft)
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 90°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 11.2mph km/h (with gusts up to 16.2mph). Wave height will be up to 1.3ft 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)30°C (86°F)31°C (87°F)31°C (87°F)30°C (86°F)
Perceived temperature34°C (94°F)34°C (93°F)33°C (91°F)35°C (94°F)34°C (94°F)36°C (97°F)37°C (98°F)36°C (97°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity77%79%80%73%67%67%71%75%
Barometric pressure1005 hPa1005 hPa1006 hPa1008 hPa1006 hPa1004 hPa1005 hPa1006 hPa
Cloud cover18%41%84%21%21%87%64%53%
Heat index34°C (94°F)34°C (93°F)33°C (91°F)35°C (94°F)34°C (94°F)36°C (97°F)37°C (98°F)36°C (97°F)
Dew point25°C (76°F)25°C (77°F)24°C (76°F)24°C (75°F)23°C (74°F)24°C (75°F)25°C (77°F)25°C (77°F)
Wind
Speed11km/h (7mph)16km/h (10mph)18km/h (11mph)17km/h (11mph)16km/h (10mph)8km/h (5mph)9km/h (5mph)13km/h (8mph)
Gusts17km/h (10mph)23km/h (14mph)26km/h (16mph)22km/h (14mph)25km/h (16mph)13km/h (8mph)14km/h (9mph)20km/h (12mph)
Direction 224°
SW
237°
WSW
243°
WSW
256°
WSW
286°
WNW
322°
NW
242°
WSW
230°
SW
Wind chill29°C (85°F)29°C (84°F)28°C (83°F)30°C (85°F)30°C (86°F)31°C (87°F)31°C (87°F)30°C (86°F)
Waves
Height0.4m (1.3ft)0.1m (0.5ft)0.2m (0.8ft)0.3m (0.9ft)0.2m (0.8ft)0.1m (0.4ft)0.4m (1.2ft)0.2m (0.6ft)
Direction 240°
WSW
246°
WSW
250°
WSW
250°
WSW
282°
WNW
320°
NW
137°
SE
153°
SSE
Period1.7 sec.1.7 sec.1.7 sec.1.7 sec.1.7 sec.2.0 sec.1.9 sec.1.9 sec.
Significant height0.3m (1ft)0.4m (1.3ft)0.6m (2ft)0.6m (2ft)0.7m (2.3ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)
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 88°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 19.3mph km/h (with gusts up to 26.1mph). 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)29°C (83°F)28°C (83°F)30°C (85°F)30°C (85°F)31°C (87°F)29°C (85°F)27°C (80°F)
Perceived temperature34°C (94°F)33°C (91°F)32°C (90°F)34°C (93°F)34°C (93°F)36°C (97°F)35°C (95°F)30°C (87°F)
Precipitation0in0in0in0in0in0in0.1in0in
Humidity76%76%78%70%67%69%78%86%
Barometric pressure1006 hPa1005 hPa1006 hPa1007 hPa1006 hPa1004 hPa1004 hPa1008 hPa
Cloud cover18%23%20%19%20%86%83%68%
Heat index34°C (94°F)33°C (91°F)32°C (90°F)34°C (93°F)34°C (93°F)36°C (97°F)35°C (95°F)30°C (87°F)
Dew point24°C (76°F)24°C (75°F)24°C (75°F)24°C (75°F)23°C (73°F)24°C (76°F)25°C (77°F)24°C (76°F)
Wind
Speed19km/h (12mph)21km/h (13mph)22km/h (13mph)14km/h (9mph)6km/h (4mph)17km/h (11mph)12km/h (7mph)31km/h (19mph)
Gusts28km/h (18mph)31km/h (19mph)32km/h (20mph)19km/h (11mph)9km/h (5mph)24km/h (15mph)19km/h (12mph)42km/h (26mph)
Direction 230°
SW
235°
SW
245°
WSW
229°
SW
308°
NW
85°
E
143°
SE
271°
W
Wind chill29°C (85°F)29°C (83°F)28°C (83°F)30°C (85°F)30°C (85°F)31°C (87°F)29°C (85°F)27°C (80°F)
Waves
Height0.1m (0.3ft)0.2m (0.6ft)0.2m (0.8ft)0.2m (0.7ft)0.1m (0.4ft)0.1m (0.4ft)0.2m (0.7ft)0.2m (0.7ft)
Direction 179°
S
247°
WSW
246°
WSW
248°
WSW
265°
W
52°
NE
115°
ESE
244°
WSW
Period2.0 sec.2.0 sec.2.0 sec.2.0 sec.2.0 sec.1.9 sec.1.9 sec.2.0 sec.
Significant height0.3m (1ft)0.5m (1.6ft)0.6m (2ft)0.5m (1.6ft)0.3m (1ft)0.3m (1ft)0.5m (1.6ft)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 (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 85°F t and a low of 83°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 11.2mph km/h (with gusts up to 18mph). 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 (82°F)28°C (82°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (83°F)
Perceived temperature32°C (89°F)32°C (90°F)32°C (90°F)34°C (92°F)34°C (92°F)34°C (93°F)34°C (93°F)33°C (92°F)
Precipitation0in0in0in0in0.1in0.1in0in0in
Humidity84%81%80%77%74%74%77%78%
Barometric pressure1007 hPa1005 hPa1006 hPa1007 hPa1007 hPa1005 hPa1005 hPa1007 hPa
Cloud cover48%45%78%59%87%75%66%46%
Heat index32°C (89°F)32°C (90°F)32°C (90°F)34°C (92°F)34°C (92°F)34°C (93°F)34°C (93°F)33°C (92°F)
Dew point25°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (75°F)24°C (75°F)24°C (76°F)24°C (76°F)
Wind
Speed16km/h (10mph)11km/h (7mph)10km/h (6mph)12km/h (7mph)9km/h (5mph)10km/h (6mph)18km/h (11mph)16km/h (10mph)
Gusts29km/h (18mph)16km/h (10mph)15km/h (9mph)16km/h (10mph)16km/h (10mph)15km/h (10mph)25km/h (15mph)24km/h (15mph)
Direction 230°
SW
235°
SW
207°
SSW
150°
SSE
144°
SE
246°
WSW
228°
SW
229°
SW
Wind chill28°C (82°F)28°C (82°F)28°C (82°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (83°F)
Waves
Height0.2m (0.6ft)0.4m (1.3ft)0.5m (1.7ft)0.2m (0.7ft)0.1m (0.3ft)0.3m (0.9ft)0.3m (1.1ft)0.4m (1.4ft)
Direction 215°
SW
208°
SSW
204°
SSW
203°
SSW
175°
S
46°
NE
42°
NE
35°
NE
Period2.2 sec.2.2 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.
Significant height0.4m (1.3ft)0.2m (0.7ft)0.1m (0.3ft)0.1m (0.3ft)0.2m (0.7ft)0.2m (0.7ft)0.1m (0.3ft)0.1m (0.3ft)
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 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 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 12.4mph km/h (with gusts up to 17.4mph). 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 (82°F)28°C (82°F)29°C (83°F)29°C (84°F)30°C (86°F)30°C (85°F)29°C (85°F)
Perceived temperature32°C (90°F)32°C (90°F)32°C (90°F)33°C (92°F)32°C (90°F)34°C (93°F)34°C (94°F)34°C (93°F)
Precipitation0.1in0in0in0in0in0in0in0in
Humidity82%80%80%77%70%66%70%72%
Barometric pressure1007 hPa1005 hPa1006 hPa1007 hPa1007 hPa1004 hPa1004 hPa1006 hPa
Cloud cover72%51%48%78%32%51%74%42%
Heat index32°C (90°F)32°C (90°F)32°C (90°F)33°C (92°F)32°C (90°F)34°C (93°F)34°C (94°F)34°C (93°F)
Dew point25°C (76°F)24°C (76°F)24°C (75°F)24°C (76°F)23°C (73°F)23°C (73°F)24°C (74°F)24°C (75°F)
Wind
Speed17km/h (11mph)20km/h (12mph)12km/h (8mph)11km/h (7mph)3km/h (2mph)2km/h (1mph)4km/h (3mph)7km/h (4mph)
Gusts26km/h (16mph)28km/h (18mph)17km/h (11mph)15km/h (9mph)4km/h (3mph)3km/h (2mph)6km/h (4mph)11km/h (7mph)
Direction 220°
SW
230°
SW
199°
SSW
143°
SE
191°
SSW
224°
SW
271°
W
151°
SSE
Wind chill28°C (82°F)28°C (82°F)28°C (82°F)29°C (83°F)29°C (84°F)30°C (86°F)30°C (85°F)29°C (85°F)
Waves
Height0.3m (0.9ft)0.5m (1.6ft)0.2m (0.7ft)0.1m (0.5ft)0.1m (0.5ft)0.2m (0.6ft)0.1m (0.5ft)0.3m (1.0ft)
Direction 246°
WSW
243°
WSW
239°
WSW
9763°
3326°
1167°
450°
91°
E
Period1.8 sec.1.8 sec.1.8 sec.1.4 sec.1.7 sec.1.8 sec.1.9 sec.1.9 sec.
Significant height0.1m (0.3ft)0.1m (0.3ft)0.2m (0.7ft)0.3m (1ft)0.4m (1.3ft)0.5m (1.6ft)0.4m (1.3ft)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 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 83°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 9.3mph 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 temperature29°C (84°F)28°C (83°F)28°C (83°F)29°C (84°F)30°C (86°F)30°C (85°F)29°C (85°F)29°C (84°F)
Perceived temperature33°C (92°F)33°C (91°F)32°C (90°F)33°C (92°F)34°C (94°F)34°C (94°F)34°C (94°F)34°C (93°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity77%79%77%73%69%71%74%76%
Barometric pressure1006 hPa1005 hPa1006 hPa1007 hPa1007 hPa1005 hPa1005 hPa1007 hPa
Cloud cover42%45%62%71%64%70%57%38%
Heat index33°C (92°F)33°C (91°F)32°C (90°F)33°C (92°F)34°C (94°F)34°C (94°F)34°C (94°F)34°C (93°F)
Dew point24°C (76°F)24°C (76°F)24°C (75°F)24°C (74°F)23°C (74°F)24°C (75°F)24°C (76°F)24°C (76°F)
Wind
Speed10km/h (6mph)10km/h (6mph)12km/h (7mph)15km/h (9mph)12km/h (7mph)9km/h (6mph)10km/h (6mph)13km/h (8mph)
Gusts15km/h (10mph)15km/h (9mph)17km/h (11mph)21km/h (13mph)17km/h (10mph)14km/h (9mph)16km/h (10mph)20km/h (12mph)
Direction 152°
SSE
161°
SSE
166°
SSE
165°
SSE
152°
SSE
162°
SSE
158°
SSE
173°
S
Wind chill29°C (84°F)28°C (83°F)28°C (83°F)29°C (84°F)30°C (86°F)30°C (85°F)29°C (85°F)29°C (84°F)
Waves
Height0.2m (0.7ft)0.1m (0.3ft)0.1m (0.3ft)0.4m (1.3ft)0.3m (1.0ft)0.1m (0.3ft)0.2m (0.7ft)0.3m (1.0ft)
Direction 123°
ESE
164°
SSE
177°
S
175°
S
155°
SSE
137°
SE
202°
SSW
270°
W
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 height0.3m (1ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)0.2m (0.7ft)0.1m (0.3ft)
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 Saturday 25 May 2024

On Saturday 25 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 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 16.8mph km/h (with gusts up to 23.6mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (83°F)28°C (83°F)28°C (82°F)28°C (82°F)28°C (83°F)29°C (85°F)29°C (84°F)29°C (84°F)
Perceived temperature33°C (91°F)32°C (90°F)32°C (89°F)32°C (90°F)32°C (90°F)34°C (92°F)33°C (92°F)33°C (91°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity77%78%81%81%78%72%71%71%
Barometric pressure1007 hPa1006 hPa1007 hPa1008 hPa1007 hPa1006 hPa1006 hPa1008 hPa
Cloud cover54%88%74%87%80%69%58%41%
Heat index33°C (91°F)32°C (90°F)32°C (89°F)32°C (90°F)32°C (90°F)34°C (92°F)33°C (92°F)33°C (91°F)
Dew point24°C (75°F)24°C (75°F)24°C (75°F)24°C (76°F)24°C (75°F)24°C (74°F)23°C (74°F)23°C (73°F)
Wind
Speed15km/h (10mph)17km/h (11mph)22km/h (13mph)26km/h (16mph)24km/h (15mph)27km/h (17mph)23km/h (15mph)15km/h (9mph)
Gusts23km/h (14mph)24km/h (15mph)31km/h (19mph)35km/h (22mph)35km/h (22mph)38km/h (24mph)35km/h (21mph)23km/h (14mph)
Direction 213°
SSW
225°
SW
218°
SW
221°
SW
229°
SW
235°
SW
245°
WSW
236°
WSW
Wind chill29°C (83°F)28°C (83°F)28°C (82°F)28°C (82°F)28°C (83°F)29°C (85°F)29°C (84°F)29°C (84°F)
Waves
Height0.4m (1.3ft)0.3m (1.0ft)0.2m (0.7ft)0.4m (1.3ft)0.3m (1.0ft)0.1m (0.3ft)0.2m (0.7ft)0.1m (0.3ft)
Direction 282°
WNW
232°
SW
216°
SW
219°
SW
6739°
3395°
102°
ESE
112°
ESE
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 height0.2m (0.7ft)0.3m (1ft)0.2m (0.7ft)0.1m (0.3ft)0.3m (1ft)0.4m (1.3ft)0.4m (1.3ft)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 chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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