Nai Harn Beach Surf Break

Lat Long: 7.78° N 98.30° E

Nai Harn Beach 48 hour detailed Surf Forecast

Issued: 12 am 17 Sep 2026 (local time)

Forecast update in  hr  min

Today's Nai Harn Beach sea temperature is
29.9°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 (17 Sep):

  • Morning surf: Morning surf (17 Sep, local time) - 6ft (1.8m), 7s period with W swell.
  • Afternoon surf: Afternoon surf (17 Sep, local time) - 6ft (1.8m), 7s period with W swell.
  • Evening surf: Evening surf (17 Sep, local time) - 6.5ft (2.0m), 7s period with W swell.

The current surf forecast for Nai Harn Beach at 5AM is: 1.8m 7s primary swell from a West direction and 0.1m 20s secondary swell from a West direction, 0.1m 20s secondary swell from a West direction (forecast issued at 12:00am September 17). The wind direction is predicted to be cross-onshore.

Time (+07) & DateWave HeightWave Period
Morning (17 Sep)6ft (1.8m)7s
Afternoon (17 Sep)6ft (1.8m)7s
Evening (17 Sep)6.5ft (2.0m)7s

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


Short Range Forecast

Heavy rain (total 110mm), heaviest during Thu night. Warm (max 29°C on Wed night, min 26°C on Thu night). Winds increasing (moderate winds from the WNW on Wed night, strong winds from the WSW by Fri morning).

Thursday
17
Friday
18
Saturday
19
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
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
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
W
7
1.8
W
7
1.8
W
7
1.8
W
7
1.8
W
7
1.9
W
7
2
W
7
2.1
WSW
7
2.5
WSW
8
2.5
WSW
8
2.3
WSW
8
2
WSW
8
2
WSW
8
2.3
WSW
8
2.2
W
8
2.3
W
8
2.3
W
8
2.2
W
8
2.1
W
8
2
W
8
2.1
W
8
2.4
W
8
2.4
W
8
2.3
W
8
Wave Graph
Metric surfscale
Energy kJ
246
303
320
320
320
376
435
456
717
773
688
509
484
592
619
652
669
612
565
501
559
753
765
733
Wind (km/h)
30
W
30
W
30
W
30
W
35
W
35
WSW
35
W
35
W
45
W
40
WSW
40
WSW
40
WSW
45
WSW
45
WSW
40
WSW
40
WSW
45
W
40
WSW
40
WSW
40
W
35
W
40
WSW
35
WSW
40
WSW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
High Tide
1:16AM1.69m
1:24PM1.39m
1:47AM1.55m
1:54PM1.23m
2:27AM1.40m
2:37PM1.08m
Low Tide
7:32AM0.46m
7:21PM0.48m
8:08AM0.61m
7:48PM0.63m
9:04AM0.77m
8:27PM0.78m
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:16
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:25
6:24
6:23
 mm
3
5
2
1
5
8
4
15
12
5
7
5
2
4
4
4
8
8
3
1
1
1
1
Temp °C
28
28
29
29
29
28
28
28
26
27
27
27
27
27
27
26
26
26
26
27
27
28
28
28
Feels °C
28
28
29
29
28
26
27
27
24
25
25
25
23
24
25
24
23
24
24
24
25
26
26
26
  • 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 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Nai Harn Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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