Nai Harn Beach Surf Break

Nai Harn Beach Surf Forecast and Surf Report

Lat Long: 7.78° N 98.30° E

Issued: 6 pm 02 Jul 2026 (local time)

Forecast update in  hr  min

Today's Nai Harn Beach sea temperature is
30.2° 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 2 Jul 2026:

  • Most powerful swell: Thursday 9 Jul, 10AM (local time) - 5.5ft (1.7m), 8s period, W swell with 346 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 1.7m 8s and forecast to arrive on Thursday (Jul 09) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 8s period and expected on Tuesday (Jul 07) at 4AM.

Wave TypeTime (+07) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful10AM (Thu 9th Jul)5.5ft (1.7m) 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 22mm), heaviest during Thu night. Warm (max 29°C on Thu afternoon, min 28°C on Thu night). Mainly fresh winds.

Days 5-7 Weather Summary

Heavy rain (total 21mm), heaviest during Sun night. Warm (max 29°C on Mon afternoon, min 26°C on Mon morning). Mainly fresh winds.

Thu
2
Friday
3
Saturday
4
Sunday
5
Monday
6
Tuesday
7
Wednesday
8
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
0
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)
2.1
W
8
1.7
W
8
1.7
W
7
1.5
W
7
1.3
W
7
1.6
W
7
1.5
W
7
1.4
W
7
1.6
W
7
1.6
W
8
1.5
W
8
1.6
W
8
1.6
W
8
1.3
W
8
1.6
W
8
1.6
W
7
1.5
W
7
1.8
W
7
1.5
W
8
1.4
W
8
1.7
W
8
Wave Graph
Metric surfscale
Energy kJ
510
332
290
226
168
243
223
205
276
305
282
323
323
212
283
257
235
343
249
222
346
Wind (km/h)
35
WSW
30
W
25
W
25
WSW
25
W
25
WSW
30
WSW
30
WSW
30
WSW
25
SW
20
WSW
25
W
15
W
25
WSW
30
WSW
25
WSW
25
WSW
25
WSW
30
WSW
30
WSW
30
WSW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
on
on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
00:17AM1.53m
12:22PM1.86m
00:52AM1.54m
12:55PM1.82m
1:28AM1.55m
1:30PM1.76m
2:09AM1.55m
2:09PM1.67m
2:56AM1.54m
2:55PM1.56m
3:51AM1.54m
3:53PM1.44m
4:58AM1.54m
Low Tide
6:17PM0.22m
6:05AM0.34m
6:49PM0.21m
6:40AM0.37m
7:22PM0.22m
7:18AM0.41m
7:57PM0.24m
8:02AM0.47m
8:36PM0.28m
8:53AM0.54m
9:22PM0.33m
9:57AM0.60m
10:18PM0.40m
11:17AM0.62m
thunderstorm
mod rain
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
cloud
cloud
part cloud
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:13
6:13
6:13
6:13
6:15
6:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:46
6:46
6:47
6:47
6:47
6:47
6:47
6:47
 mm
2
6
4
2
2
1
3
2
5
15
1
1
Temp °C
29
29
29
29
29
29
29
29
29
28
28
27
29
29
29
29
29
29
29
29
29
Feels °C
28
29
30
30
30
30
29
29
28
28
30
27
31
31
29
29
30
30
29
29
29
Swell 1
Height (m)
Direction
Period (s)
0.2
WSW
16
0.2
WSW
16
0.2
WSW
16
0.2
WSW
15
0.2
WSW
16
1.5
W
7
0.2
WSW
16
0.2
WSW
15
1.6
W
8
0.1
W
15
0.2
WSW
18
0.2
WSW
18
1.3
W
8
0.2
WSW
16
0.2
WSW
16
0.2
WSW
16
0.2
WSW
15
1.5
W
8
0.2
WSW
15
1.7
W
8
Energy kJ
25
25
26
21
24
223
24
22
305
4
30
30
212
25
25
24
21
249
21
346
Swell 2
Height (m)
Direction
Period (s)
0.1
W
20
0.2
WSW
18
0.2
WSW
16
0.1
W
20
0.2
WSW
15
0.1
W
19
0.1
W
14
0.1
W
14
0.2
WSW
17
0.1
SE
4
0.1
SE
5
0.2
WSW
15
0.1
SW
15
0.1
SW
15
Energy kJ
7
30
24
8
21
7
4
4
28
1
1
21
8
8
Swell 3
Height (m)
Direction
Period (s)
0.1
W
19
Energy kJ
7
Wind waves
Height (m)
Direction
Period (s)
2.1
W
8
1.7
W
8
1.7
W
7
1.5
W
7
1.3
W
7
1.6
W
7
0.9
WSW
7
1.4
W
7
1.6
W
7
1
W
8
1.5
W
8
1.6
W
8
1.6
W
8
0.8
W
8
1.6
W
8
1.6
W
7
1.5
W
7
1.8
W
7
1
W
8
1.4
W
8
Energy kJ
510
332
290
226
168
243
89
205
276
127
282
323
323
84
283
257
235
343
118
222
Nearest Offshore or Glassy
Rating
(10 max)
3
2
2
2
2
2
1
1
2
3
2
2
2
2
2
1
2
2
2
4
3
Distance (km)
797
24
4
4
4
4
24
24
24
797
4
4
4
24
24
24
24
4
24
782
797
Best forecast wave conditions in Phuket
Rating
(10 max)
2
2
2
2
2
1
1
2
2
2
2
2
2
1
2
2
2
Best forecast wave conditions in Thailand
Rating
(10 max)
2
2
2
2
2
1
1
2
2
2
2
2
2
1
2
2
2
Header Global
Rating
(10 max)
5
9
5
9
5
7
5
5
9
7
7
6
9
8
6
6
7
9
7
7
9
  • 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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