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

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

Discover the best moment to go to the beach in Nathon 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 Nathon. 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 202676°F to 85°Fdiscouraged
Sunday 19 July 202674°F to 86°Fdiscouraged
Monday 20 July 202674°F to 86°Fdiscouraged
Tuesday 21 July 202674°F to 86°Fdiscouraged
Wednesday 22 July 202676°F to 86°Fdiscouraged
Thursday 23 July 202683°F to 85°Fdiscouraged
Friday 24 July 202681°F to 85°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Nathon

Sea weather on Saturday 18 July 2026

On Saturday 18 July 2026, the sun will rise at 06:08 and will set at 18:45 on the beach(es) of Nathon. The outside temperature will be a high of 85°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 14.3mph km/h (with gusts up to 18.6mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (84°F)28°C (83°F)28°C (82°F)28°C (82°F)24°C (75°F)26°C (79°F)29°C (84°F)28°C (83°F)
Perceived temperature33°C (91°F)32°C (90°F)31°C (88°F)32°C (89°F)26°C (79°F)28°C (82°F)33°C (91°F)32°C (90°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity70%75%75%76%75%68%67%73%
Barometric pressure1011 hPa1009 hPa1010 hPa1011 hPa1011 hPa1008 hPa1008 hPa1011 hPa
Cloud cover19%14%10%7%9%10%58%85%
Heat index33°C (91°F)32°C (90°F)31°C (88°F)32°C (89°F)26°C (79°F)28°C (82°F)33°C (91°F)32°C (90°F)
Dew point23°C (73°F)23°C (74°F)23°C (73°F)23°C (74°F)19°C (67°F)20°C (67°F)22°C (72°F)23°C (73°F)
Wind
Speed20km/h (12mph)23km/h (14mph)21km/h (13mph)18km/h (11mph)14km/h (9mph)3km/h (2mph)9km/h (6mph)12km/h (7mph)
Gusts27km/h (17mph)30km/h (19mph)28km/h (17mph)25km/h (15mph)30km/h (19mph)6km/h (4mph)13km/h (8mph)18km/h (11mph)
Direction 296°
WNW
278°
W
250°
WSW
260°
W
270°
W
149°
SSE
168°
SSE
243°
WSW
Wind chill29°C (84°F)28°C (83°F)28°C (82°F)28°C (82°F)24°C (75°F)26°C (79°F)29°C (84°F)28°C (83°F)
Waves
Height0.3m (0.9ft)0.3m (1.0ft)0.2m (0.7ft)0.2m (0.7ft)0.1m (0.5ft)0.3m (1.1ft)0.3m (0.9ft)0.4m (1.2ft)
Direction 301°
WNW
283°
WNW
254°
WSW
267°
W
259°
W
264°
W
276°
W
220°
SW
Period1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.
Significant height0.7m (2.3ft)0.7m (2.3ft)0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)0.1m (0.3ft)0.1m (0.3ft)0.2m (0.7ft)
Sea water temperature
Water temperature30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)

Sea weather on Sunday 19 July 2026

On Sunday 19 July 2026, the sun will rise at 06:08 and will set at 18:45 on the beach(es) of Nathon. The outside temperature will be a high of 86°F t and a low of 74°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 15.5mph km/h (with gusts up to 22.4mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (84°F)28°C (83°F)28°C (82°F)28°C (82°F)24°C (75°F)26°C (80°F)30°C (85°F)29°C (85°F)
Perceived temperature33°C (92°F)32°C (90°F)31°C (88°F)31°C (88°F)26°C (78°F)28°C (83°F)34°C (92°F)34°C (93°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity74%75%78%78%77%68%67%73%
Barometric pressure1011 hPa1009 hPa1010 hPa1012 hPa1011 hPa1008 hPa1008 hPa1011 hPa
Cloud cover21%23%35%25%7%6%45%20%
Heat index33°C (92°F)32°C (90°F)31°C (88°F)31°C (88°F)26°C (78°F)28°C (83°F)34°C (92°F)34°C (93°F)
Dew point24°C (75°F)23°C (74°F)23°C (74°F)24°C (74°F)20°C (67°F)20°C (68°F)23°C (73°F)24°C (75°F)
Wind
Speed23km/h (14mph)23km/h (15mph)24km/h (15mph)23km/h (14mph)20km/h (13mph)8km/h (5mph)6km/h (4mph)25km/h (15mph)
Gusts32km/h (20mph)31km/h (19mph)32km/h (20mph)30km/h (19mph)24km/h (15mph)17km/h (11mph)9km/h (6mph)36km/h (22mph)
Direction 290°
WNW
260°
W
258°
WSW
262°
W
275°
W
305°
NW
262°
W
288°
WNW
Wind chill29°C (84°F)28°C (83°F)28°C (82°F)28°C (82°F)24°C (75°F)26°C (80°F)30°C (85°F)29°C (85°F)
Waves
Height0.2m (0.6ft)0.3m (0.9ft)0.3m (1.0ft)0.2m (0.7ft)0.2m (0.8ft)0.5m (1.8ft)0.1m (0.4ft)0.3m (0.9ft)
Direction 265°
W
258°
WSW
259°
WSW
268°
W
265°
W
268°
W
315°
NW
301°
WNW
Period1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.2.0 sec.2.0 sec.2.0 sec.
Significant height0.5m (1.6ft)0.6m (2ft)0.7m (2.3ft)0.5m (1.6ft)0.6m (2ft)0.1m (0.3ft)0.4m (1.3ft)0.6m (2ft)
Sea water temperature
Water temperature30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)

Sea weather on Monday 20 July 2026

On Monday 20 July 2026, the sun will rise at 06:08 and will set at 18:45 on the beach(es) of Nathon. The outside temperature will be a high of 86°F t and a low of 74°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 18.6mph km/h (with gusts up to 26.7mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (84°F)28°C (82°F)27°C (81°F)28°C (82°F)24°C (75°F)27°C (81°F)30°C (85°F)29°C (85°F)
Perceived temperature33°C (91°F)32°C (89°F)31°C (87°F)31°C (87°F)26°C (78°F)29°C (84°F)34°C (93°F)34°C (93°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity72%75%78%77%75%66%69%74%
Barometric pressure1011 hPa1010 hPa1011 hPa1013 hPa1011 hPa1009 hPa1009 hPa1011 hPa
Cloud cover10%13%14%4%3%9%26%17%
Heat index33°C (91°F)32°C (89°F)31°C (87°F)31°C (87°F)26°C (78°F)29°C (84°F)34°C (93°F)34°C (93°F)
Dew point23°C (74°F)23°C (74°F)23°C (74°F)23°C (73°F)19°C (67°F)20°C (68°F)23°C (74°F)24°C (75°F)
Wind
Speed26km/h (16mph)25km/h (15mph)23km/h (14mph)21km/h (13mph)22km/h (13mph)8km/h (5mph)3km/h (2mph)30km/h (19mph)
Gusts35km/h (22mph)33km/h (21mph)31km/h (19mph)28km/h (18mph)24km/h (15mph)17km/h (10mph)4km/h (3mph)43km/h (27mph)
Direction 269°
W
266°
W
261°
W
259°
W
267°
W
305°
NW
269°
W
298°
WNW
Wind chill29°C (84°F)28°C (82°F)27°C (81°F)28°C (82°F)24°C (75°F)27°C (81°F)30°C (85°F)29°C (85°F)
Waves
Height0.3m (1.1ft)0.4m (1.2ft)0.3m (1.0ft)0.2m (0.7ft)0.2m (0.8ft)0.3m (1.1ft)0.5m (1.8ft)0.4m (1.2ft)
Direction 280°
W
281°
WNW
277°
W
260°
W
264°
W
262°
W
285°
WNW
299°
WNW
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 height0.9m (3ft)1.0m (3.3ft)0.7m (2.3ft)0.5m (1.6ft)0.5m (1.6ft)0.2m (0.7ft)0.3m (1ft)0.9m (3ft)
Sea water temperature
Water temperature30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)

Sea weather on Tuesday 21 July 2026

On Tuesday 21 July 2026, the sun will rise at 06:09 and will set at 18:45 on the beach(es) of Nathon. The outside temperature will be a high of 86°F t and a low of 74°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 15.5mph km/h (with gusts up to 21.1mph). Wave height will be up to 1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (84°F)28°C (83°F)28°C (82°F)28°C (82°F)24°C (75°F)27°C (80°F)30°C (85°F)29°C (85°F)
Perceived temperature33°C (91°F)32°C (89°F)31°C (88°F)31°C (88°F)26°C (78°F)28°C (83°F)33°C (92°F)34°C (93°F)
Precipitation0in0in0in0in0in0in0in0.1in
Humidity73%76%77%79%77%67%65%73%
Barometric pressure1012 hPa1010 hPa1011 hPa1013 hPa1012 hPa1009 hPa1009 hPa1011 hPa
Cloud cover9%18%12%6%4%12%43%27%
Heat index33°C (91°F)32°C (89°F)31°C (88°F)31°C (88°F)26°C (78°F)28°C (83°F)33°C (92°F)34°C (93°F)
Dew point23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)20°C (67°F)20°C (68°F)22°C (72°F)24°C (75°F)
Wind
Speed25km/h (16mph)22km/h (13mph)20km/h (13mph)22km/h (14mph)20km/h (12mph)6km/h (4mph)6km/h (4mph)23km/h (14mph)
Gusts34km/h (21mph)28km/h (18mph)27km/h (17mph)29km/h (18mph)25km/h (16mph)13km/h (8mph)9km/h (5mph)33km/h (21mph)
Direction 274°
W
267°
W
257°
WSW
261°
W
269°
W
346°
NNW
165°
SSE
293°
WNW
Wind chill29°C (84°F)28°C (83°F)28°C (82°F)28°C (82°F)24°C (75°F)27°C (80°F)30°C (85°F)29°C (85°F)
Waves
Height0.3m (1.1ft)0.3m (1.0ft)0.2m (0.8ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.5ft)0.2m (0.7ft)0.3m (1.1ft)
Direction 282°
WNW
273°
W
256°
WSW
260°
W
261°
W
263°
W
326°
NW
311°
NW
Period2.0 sec.2.0 sec.2.0 sec.2.0 sec.2.0 sec.1.9 sec.1.9 sec.1.9 sec.
Significant height0.8m (2.6ft)0.7m (2.3ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.1m (0.3ft)0.6m (2ft)0.8m (2.6ft)
Sea water temperature
Water temperature30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)

Sea weather on Wednesday 22 July 2026

On Wednesday 22 July 2026, the sun will rise at 06:09 and will set at 18:45 on the beach(es) of Nathon. The outside temperature will be a high of 86°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 17.4mph km/h (with gusts up to 23mph). 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 (82°F)28°C (82°F)24°C (75°F)29°C (84°F)30°C (86°F)29°C (85°F)
Perceived temperature33°C (91°F)32°C (89°F)31°C (89°F)31°C (88°F)26°C (78°F)32°C (90°F)35°C (95°F)34°C (93°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity73%76%78%78%76%67%71%73%
Barometric pressure1012 hPa1010 hPa1011 hPa1012 hPa1011 hPa1008 hPa1008 hPa1011 hPa
Cloud cover19%18%30%31%7%24%46%32%
Heat index33°C (91°F)32°C (89°F)31°C (89°F)31°C (88°F)26°C (78°F)32°C (90°F)35°C (95°F)34°C (93°F)
Dew point23°C (74°F)23°C (74°F)24°C (74°F)23°C (74°F)20°C (67°F)22°C (72°F)24°C (75°F)24°C (75°F)
Wind
Speed23km/h (15mph)28km/h (17mph)24km/h (15mph)24km/h (15mph)20km/h (12mph)10km/h (6mph)9km/h (5mph)26km/h (16mph)
Gusts32km/h (20mph)37km/h (23mph)32km/h (20mph)32km/h (20mph)22km/h (14mph)17km/h (11mph)13km/h (8mph)36km/h (23mph)
Direction 272°
W
257°
WSW
263°
W
261°
W
267°
W
310°
NW
301°
WNW
282°
WNW
Wind chill29°C (84°F)28°C (83°F)28°C (82°F)28°C (82°F)24°C (75°F)29°C (84°F)30°C (86°F)29°C (85°F)
Waves
Height0.4m (1.2ft)0.3m (1.1ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.3m (1.1ft)0.3m (1.0ft)0.2m (0.7ft)
Direction 283°
WNW
268°
W
259°
WSW
258°
WSW
261°
W
269°
W
282°
WNW
296°
WNW
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 height0.9m (3ft)0.8m (2.6ft)0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.6m (2ft)
Sea water temperature
Water temperature30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)

Sea weather on Thursday 23 July 2026

On Thursday 23 July 2026, the sun will rise at 06:09 and will set at 18:45 on the beach(es) of Nathon. 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 21.8mph km/h (with gusts up to 29.8mph). 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 (82°F)28°C (82°F)28°C (82°F)28°C (83°F)29°C (84°F)29°C (83°F)
Perceived temperature33°C (91°F)32°C (90°F)32°C (89°F)32°C (89°F)31°C (88°F)32°C (90°F)33°C (91°F)32°C (90°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity74%76%78%79%75%75%73%73%
Barometric pressure1011 hPa1010 hPa1010 hPa1011 hPa1010 hPa1008 hPa1008 hPa1010 hPa
Cloud cover19%26%36%32%29%27%40%48%
Heat index33°C (91°F)32°C (90°F)32°C (89°F)32°C (89°F)31°C (88°F)32°C (90°F)33°C (91°F)32°C (90°F)
Dew point24°C (74°F)24°C (74°F)24°C (75°F)24°C (75°F)23°C (74°F)24°C (74°F)24°C (74°F)23°C (74°F)
Wind
Speed27km/h (17mph)27km/h (17mph)26km/h (16mph)25km/h (16mph)19km/h (12mph)28km/h (17mph)35km/h (21mph)34km/h (21mph)
Gusts37km/h (23mph)36km/h (22mph)35km/h (21mph)34km/h (21mph)27km/h (17mph)41km/h (26mph)48km/h (30mph)46km/h (29mph)
Direction 265°
W
258°
WSW
258°
WSW
262°
W
273°
W
296°
WNW
303°
WNW
284°
WNW
Wind chill29°C (84°F)28°C (83°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (83°F)29°C (84°F)29°C (83°F)
Waves
Height0.3m (1.0ft)0.3m (1.0ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.4m (1.3ft)0.3m (1.0ft)0.4m (1.3ft)
Direction 283°
WNW
271°
W
269°
W
260°
W
262°
W
267°
W
315°
NW
321°
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 height0.7m (2.3ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)0.5m (1.6ft)0.3m (1ft)0.5m (1.6ft)0.9m (3ft)
Sea water temperature
Water temperature30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)

Sea weather on Friday 24 July 2026

On Friday 24 July 2026, the sun will rise at 06:09 and will set at 18:44 on the beach(es) of Nathon. 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 21.8mph km/h (with gusts up to 28.6mph). 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 (83°F)28°C (83°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (83°F)28°C (82°F)
Perceived temperature32°C (89°F)32°C (89°F)31°C (88°F)31°C (88°F)30°C (87°F)31°C (87°F)32°C (89°F)31°C (88°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity74%72%71%73%73%72%73%77%
Barometric pressure1010 hPa1009 hPa1009 hPa1010 hPa1009 hPa1007 hPa1008 hPa1009 hPa
Cloud cover41%43%53%42%44%51%84%57%
Heat index32°C (89°F)32°C (89°F)31°C (88°F)31°C (88°F)30°C (87°F)31°C (87°F)32°C (89°F)31°C (88°F)
Dew point23°C (73°F)23°C (73°F)22°C (72°F)23°C (73°F)22°C (72°F)22°C (72°F)23°C (73°F)23°C (73°F)
Wind
Speed35km/h (21mph)32km/h (20mph)27km/h (17mph)26km/h (16mph)27km/h (17mph)25km/h (16mph)25km/h (16mph)23km/h (14mph)
Gusts46km/h (29mph)42km/h (26mph)36km/h (23mph)34km/h (21mph)38km/h (24mph)36km/h (22mph)34km/h (21mph)31km/h (19mph)
Direction 270°
W
272°
W
270°
W
269°
W
270°
W
276°
W
285°
WNW
288°
WNW
Wind chill28°C (83°F)28°C (83°F)28°C (83°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (83°F)28°C (82°F)
Waves
Height0.4m (1.3ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (1.0ft)0.2m (0.7ft)0.2m (0.7ft)0.4m (1.3ft)0.4m (1.3ft)
Direction 297°
WNW
268°
W
279°
W
292°
WNW
293°
WNW
307°
NW
321°
NW
310°
NW
Period1.9 sec.1.8 sec.1.9 sec.1.9 sec.1.9 sec.1.9 sec.1.9 sec.1.9 sec.
Significant height1.0m (3.3ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.5m (1.6ft)0.6m (2ft)0.9m (3ft)0.9m (3ft)
Sea water temperature
Water temperature30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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