Nai Harn Beach Surf Break

Lat Long: 7.78° N 98.30° E

Nai Harn Beach 48 hour detailed Surf Forecast

Issued: 6 pm 14 Sep 2026 (local time)

Forecast update in  hr  min

Today's Nai Harn Beach sea temperature is
29.8°C
1.0° 

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 (15 Sep):

  • Morning surf: Morning surf (15 Sep, local time) - 1ft (0.3m), 16s period with WSW swell.
  • Afternoon surf: Afternoon surf (15 Sep, local time) - 2.5ft (0.8m), 6s period with WSW swell.
  • Evening surf: Evening surf (15 Sep, local time) - 2.5ft (0.7m), 6s period with WSW swell.

The current surf forecast for Nai Harn Beach at 8AM is: 0.3m 16s primary swell from a West-southwest direction and 0.4m 4s secondary swell from a West-southwest direction (forecast issued at 06:00pm September 14). The wind direction is predicted to be onshore.

Time (+07) & DateWave HeightWave Period
Morning (15 Sep)1ft (0.3m)16s
Afternoon (15 Sep)2.5ft (0.8m)6s
Evening (15 Sep)2.5ft (0.7m)6s

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


Short Range Forecast

Heavy rain (total 46mm), heaviest during Tue night. Warm (max 29°C on Tue morning, min 25°C on Wed night). Winds increasing (light winds from the WSW on Mon night, fresh winds from the WNW by Wed afternoon).

Mon
14
Tuesday
15
Wednesday
16
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
17
0.3
WSW
16
0.3
WSW
16
0.3
WSW
16
0.3
WSW
16
0.3
WSW
16
0.3
WSW
16
0.8
WSW
6
0.8
WSW
6
0.7
WSW
6
0.7
WSW
6
0.7
W
6
0.7
W
6
0.4
WSW
6
0.9
W
6
0.2
WSW
15
0.2
WSW
15
0.2
WSW
15
0.2
WSW
15
Wave Graph
Metric surfscale
Energy kJ
54
51
50
50
50
50
50
49
49
34
34
33
31
12
55
21
21
21
21
Wind (km/h)
10
SW
10
SW
15
SW
15
WSW
15
WSW
10
WSW
10
WSW
15
W
25
WNW
20
NW
15
NW
15
NW
15
NW
15
NW
15
WNW
25
WNW
30
WNW
30
WNW
25
WNW
Wind State
on
on
on
cross-on
cross-on
on
on
cross-on
cross
cross
cross
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
High Tide
00:22AM1.90m
12:31PM1.70m
00:49AM1.81m
12:58PM1.55m
Low Tide
6:09PM0.09m
6:32AM0.20m
6:33PM0.20m
7:01AM0.31m
6:57PM0.34m
thunderstorm
thunderstorm
thunderstorm
clear
clear
thunderstorm
thunderstorm
part cloud
thunderstorm
part cloud
clear
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<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>
6:27
6:27
6:25
 mm
3
2
1
1
1
1
5
5
4
5
4
3
1
Temp °C
28
28
28
28
28
28
28
29
27
27
27
27
27
27
27
27
27
27
27
Feels °C
31
31
30
30
31
31
31
31
28
28
29
29
29
29
29
28
27
27
28
  • 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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