Nai Harn Beach Surf Break

Lat Long: 7.78° N 98.30° E

Nai Harn Beach 48 hour detailed Surf Forecast

Issued: 6 pm 12 Sep 2026 (local time)

Forecast update in  hr  min

Today's Nai Harn Beach sea temperature is
30.0°C
1.1° 

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


How big are the waves at Nai Harn Beach today (13 Sep):

  • Morning surf: Morning surf (13 Sep, local time) - 1.5ft (0.4m), 19s period with WSW swell.
  • Afternoon surf: Afternoon surf (13 Sep, local time) - 1.5ft (0.4m), 19s period with WSW swell.
  • Evening surf: Evening surf (13 Sep, local time) - 1.5ft (0.4m), 18s period with WSW swell.

The current surf forecast for Nai Harn Beach at 1AM is: 0.3m 20s primary swell from a West-southwest direction and 0.4m 7s secondary swell from a West direction (forecast issued at 06:00pm September 12). An open ocean swell of 0.6m 7s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (+07) & DateWave HeightWave Period
Morning (13 Sep)1.5ft (0.4m)19s
Afternoon (13 Sep)1.5ft (0.4m)19s
Evening (13 Sep)1.5ft (0.4m)18s

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


Short Range Forecast

Moderate rain (total 12mm), heaviest on Sat afternoon. Warm (max 28°C on Sat afternoon, min 27°C on Mon morning). Wind will be generally light.

Sat
12
Sunday
13
Monday
14
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
Rating
(10 max)
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
Wave
Height (m)
Direction
Period (s)
0.3
WSW
21
0.3
WSW
21
0.2
WSW
21
0.3
WSW
20
0.4
WSW
19
0.4
WSW
19
0.4
WSW
19
0.4
WSW
19
0.4
WSW
19
0.4
WSW
18
0.4
WSW
18
0.4
WSW
18
0.4
WSW
18
0.4
WSW
18
0.4
WSW
17
0.4
WSW
17
0.3
WSW
17
0.3
WSW
16
0.3
WSW
16
Wave Graph
Metric surfscale
Energy kJ
90
89
44
75
125
125
125
124
122
106
102
102
102
102
101
99
54
51
50
Wind (km/h)
25
WNW
20
NW
15
NW
15
WNW
15
WNW
15
W
15
W
20
W
20
WNW
20
WNW
15
WNW
15
W
15
WSW
15
WSW
15
SW
15
SW
20
WSW
15
WSW
15
WSW
Wind State
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
on
on
on
on
on
cross-on
cross-on
High Tide
11:26PM1.96m
11:34AM1.94m
11:55PM1.95m
12:03PM1.84m
Low Tide
5:16PM-0.05m
5:30AM0.07m
5:43PM-0.00m
6:02AM0.11m
6:09PM0.09m
thunderstorm
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thunderstorm
thunderstorm
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<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:28
6:28
6:27
 mm
3
2
3
2
1
Temp °C
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
27
28
28
28
Feels °C
29
29
30
30
30
31
30
30
30
30
31
30
31
31
31
29
30
30
30
  • 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
How to use the Wavefinder 

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