Nai Harn Beach Surf Break

Nai Harn Beach Surf Forecast and Surf Report

Lat Long: 7.78° N 98.30° E

Issued: 6 pm 27 Jun 2026 (local time)

Forecast update in  hr  min

Today's Nai Harn Beach sea temperature is
30.4° C

Slightly warmer than usual

Nai Harn Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Nai Harn Beach surf forecast from 27 Jun 2026:

  • Most powerful swell: Thursday 2 Jul, 7AM (local time) - 8ft (2.5m), 8s period, W swell with 943 kJ wave energy.

Best Forecast Surf Conditions for Nai Harn Beach this week:

The most powerful waves expected at Nai Harn Beach in the next 16 days are 2.5m 8s and forecast to arrive on Thursday (Jul 02) at 7AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 8s period and expected on Monday (Jun 29) at 10AM.

Wave TypeTime (+07) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 7AM (Thu 2nd Jul)8ft (2.5m) 8s

Table - best surf conditions forecast for Nai Harn Beach over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 75mm), heaviest during Mon morning. Warm (max 29°C on Sat afternoon, min 25°C on Mon morning). Winds increasing (light winds from the W on Sun morning, strong winds from the WNW by Mon morning).

Days 5-7 Weather Summary

Heavy rain (total 45mm), heaviest during Tue night. Warm (max 29°C on Thu night, min 25°C on Tue night). Winds decreasing (strong winds from the WSW on Wed night, light winds from the SSW by Fri morning).

Sat
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
1
Thursday
2
Friday
3
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
W
6
0.8
W
6
0.7
W
6
0.2
WSW
18
1.9
W
6
3
W
8
2.4
W
9
1.8
W
8
2.1
W
7
2.2
WSW
7
1.6
WSW
7
1.7
W
7
2.5
W
8
2.4
W
8
2.3
W
8
1.9
W
8
1.5
W
8
1.5
W
8
1.4
W
8
0.1
SW
18
0.2
WSW
16
Wave Graph
Metric surfscale
Energy kJ
59
42
35
33
0
0
835
388
420
423
269
303
870
798
716
501
297
304
271
12
24
Wind (km/h)
20
WNW
20
WNW
15
W
25
WNW
35
WNW
50
WNW
35
WSW
35
W
40
WSW
40
WSW
20
WSW
30
WSW
40
WSW
40
WSW
35
WSW
25
WSW
20
SW
10
SSW
10
S
5
SW
15
WSW
Wind State
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
cross-on
on
on
High Tide
9:18PM1.33m
9:30AM1.70m
9:58PM1.39m
10:08AM1.77m
10:35PM1.44m
10:43AM1.83m
11:09PM1.48m
11:17AM1.86m
11:43PM1.51m
11:50AM1.87m
00:17AM1.53m
12:22PM1.86m
00:52AM1.54m
12:55PM1.82m
Low Tide
3:04AM0.49m
4:02PM0.39m
3:45AM0.44m
4:38PM0.32m
4:22AM0.39m
5:12PM0.27m
4:57AM0.35m
5:45PM0.23m
5:31AM0.34m
6:17PM0.22m
6:05AM0.34m
6:49PM0.21m
6:40AM0.37m
part cloud
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
heavy rain
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
cloud
cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:11
6:13
6:13
6:13
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:45
6:50
6:46
6:46
6:46
6:46
6:46
6:47
 mm
1
3
1
12
39
3
11
5
6
14
4
3
7
1
5
5
Temp °C
29
28
28
28
27
26
28
28
27
28
26
28
28
28
28
28
29
29
29
29
29
Feels °C
30
29
30
28
27
24
26
26
24
26
28
25
25
25
26
28
30
32
33
33
32
Swell 1
Height (m)
Direction
Period (s)
0.3
WSW
15
0.8
W
6
0.7
W
6
0.2
WSW
13
0.2
WSW
17
0.2
WSW
16
0.2
WSW
16
0.2
WSW
18
1.9
W
8
1.5
W
8
1.5
W
8
1.4
W
8
1.3
W
9
1.4
W
9
Energy kJ
42
42
35
18
29
26
24
30
501
297
304
271
247
299
Swell 2
Height (m)
Direction
Period (s)
0.1
W
21
0.3
WSW
14
0.2
WSW
14
0.2
WSW
18
0.2
WSW
17
0.2
WSW
16
0.2
WSW
16
0.2
WSW
16
0.2
S
4
0.2
WSW
16
Energy kJ
9
41
19
33
30
25
25
26
1
24
Swell 3
Height (m)
Direction
Period (s)
0.1
W
21
0.2
WSW
20
0.2
W
8
0.1
W
20
0.1
SW
18
0.2
SSE
4
Energy kJ
9
38
5
7
12
2
Wind waves
Height (m)
Direction
Period (s)
0.9
W
6
0.5
W
6
0.8
W
6
1.9
W
6
3
W
8
2.4
W
9
1.8
W
8
2.1
W
7
2.2
WSW
7
1.6
WSW
7
1.7
W
7
2.5
W
8
2.4
W
8
2.3
W
8
0.2
S
3
Energy kJ
59
16
52
288
1035
835
388
420
423
269
303
870
798
716
1
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
2
4
4
4
4
4
4
2
2
2
4
3
3
2
2
2
2
2
Distance (km)
4
4
4
106
782
652
797
782
797
641
4
24
636
782
641
24
24
4
4
4
4
Best forecast wave conditions in Phuket
Rating
(10 max)
1
1
1
2
2
3
2
2
2
2
2
Best forecast wave conditions in Thailand
Rating
(10 max)
1
1
2
2
2
2
3
2
2
2
2
2
Header Global
Rating
(10 max)
5
6
8
5
5
6
6
5
5
5
5
5
5
5
5
7
9
5
4
7
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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Information about the Nai Harn Beach Surf forecast

The above surf forecast table for Nai Harn Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Nai Harn Beach can be found by selecting the local surf guide option on the grey menu. Our Nai Harn Beach surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Nai Harn Beach) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Nai Harn Beach may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Nai Harn Beach is 8 km (5 miles) from the city of Ban Chalong. If you plan a holiday in Phuket, look for hotels and other accommodation in Ban Chalong. Ban Chalong has rooms for a wide range of budgets as well as car hire and transport links.

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