Nai Harn Beach surf break

Nai Harn Beach surfForecast / Phuket / Thailand

information circle48hr Weather and Surf, issued 6 am Monday 18 May 2026 +07
Forecast update in hr  min  s Forecast update imminent
Nai Harn Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Nai Harn Beach sea temperature is
31.3° C
(Which is 1.5°C warmer than normal for this time of year)

How big are the waves at Nai Harn Beach today?

The current surf forecast for Nai Harn Beach at 12PM is: 0.7m 9s primary swell from a West direction and 0.1m 14s secondary swell from a West direction (forecast issued at 06:00am May 18). An open ocean swell of 1.1m 9s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (+07) & DateWave HeightWave Period
Morning (18 May)0.5ft (0.1m)21s
Afternoon (18 May)3.5ft (1.0m)9s
Evening (18 May)2ft (0.6m)9s

Table - waves today at Nai Harn Beach. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 75mm), heaviest during Mon night. Warm (max 29°C on Mon morning, min 28°C on Mon morning). Mainly fresh winds.

Monday
18
Tuesday
19
Wednesday
20
Thu
21
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.2
WNW
6
0.1
W
15
0.7
W
9
1.1
W
9
1
W
9
0.1
W
21
0.6
W
9
0.1
W
20
1.2
W
6
1.3
W
6
0.1
W
18
0.2
WSW
18
0.2
WSW
18
0.1
SW
18
0.2
WSW
18
0.2
WSW
17
0.2
WSW
16
0.2
WSW
16
0.3
WSW
16
0.3
WSW
16
0.2
WSW
16
0.2
WSW
16
1.5
W
7
1.5
W
7
Wave Graph
Metric surfscale
Energy kJ
90
4
80
192
155
9
55
7
88
118
6
30
30
12
30
27
25
25
50
51
26
26
204
210
Wind (km/h)
35
NW
20
WNW
15
WNW
20
WNW
25
WNW
30
WNW
30
WNW
30
WNW
30
W
30
W
25
WNW
25
WNW
25
WNW
25
WNW
30
W
30
W
30
W
30
W
30
W
30
W
30
W
35
W
25
W
30
W
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
11:19AM2.12m
11:47PM1.69m
12:02PM2.06m
00:34AM1.59m
12:47PM1.95m
Low Tide
4:58AM0.08m
5:45PM0.02m
5:40AM0.16m
6:32PM0.08m
6:24AM0.28m
7:22PM0.19m
thunderstorm
cloud
part cloud
cloud
thunderstorm
thunderstorm
part cloud
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
thunderstorm
mod rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:07
6:07
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:37
6:37
6:37
1
2
3
1
6
3
4
5
2
1
2
4
4
4
3
6
4
4
6
Temp °C
28
27
28
29
28
29
29
29
28
29
29
28
28
28
29
29
28
28
28
28
28
28
28
28
27
28
30
30
29
28
29
29
28
28
30
28
28
28
29
29
28
27
27
28
27
27
28
28
Swell 1
Height (m)
Direction
Period (s)
0.7
WSW
9
0.1
W
15
1.1
W
9
1.1
W
9
0.1
W
14
0.1
W
15
0.6
W
9
0.1
W
20
0.1
W
19
0.1
W
19
0.1
W
18
0.2
WSW
18
0.2
WSW
18
0.1
SW
18
0.2
WSW
18
0.2
WSW
17
0.2
WSW
16
0.2
WSW
16
0.3
WSW
16
0.3
WSW
16
0.2
WSW
16
0.2
WSW
16
0.2
WSW
17
0.2
WSW
15
Energy kJ
86
4
198
192
4
4
55
7
7
7
6
30
30
12
30
27
25
25
50
51
26
26
29
22
Swell 2
Height (m)
Direction
Period (s)
0.1
W
15
0.1
W
15
0.1
W
14
0.1
W
14
0.1
W
21
0.1
W
21
0.1
W
20
0.1
W
15
0.1
W
15
0.1
W
15
0.1
W
13
0.1
W
20
0.2
WSW
14
0.1
SW
14
Energy kJ
5
4
4
4
9
9
7
4
4
4
3
7
21
8
Swell 3
Height (m)
Direction
Period (s)
0.1
W
21
0.1
W
21
0.1
W
15
0.1
W
15
Energy kJ
9
9
4
4
Wind waves
Height (m)
Direction
Period (s)
1.2
WNW
6
1.3
W
9
0.7
W
9
0.7
W
9
1
W
9
1.1
W
9
0.9
WNW
5
1.1
W
8
1.2
W
6
1.3
W
6
1.4
W
6
1.4
WNW
6
1.4
WNW
7
1.7
W
6
1.9
WNW
7
1.7
W
7
1.7
W
7
1.6
W
7
1.5
W
7
1.5
W
7
1.5
W
7
1.5
W
7
1.5
W
7
1.5
W
7
Energy kJ
90
281
80
79
155
185
43
173
88
118
151
170
180
247
332
278
303
264
223
211
199
199
204
210
Nearest Offshore or Glassy
Rating
(10 max)
3
1
2
2
1
3
3
4
4
3
3
3
3
2
2
2
2
2
2
2
3
2
2
1
Distance (km)
641
24
4
4
4
797
782
782
782
782
782
797
797
744
744
24
24
744
645
744
782
646
4
24
Best forecast wave conditions in Phuket
Rating
(10 max)
1
2
2
1
2
2
2
1
Best forecast wave conditions in Thailand
Rating
(10 max)
1
2
2
1
2
2
2
2
Header Global
Rating
(10 max)
4
4
4
7
5
4
5
5
5
4
4
4
4
4
4
4
4
4
5
4
4
5
5
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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