Nai Harn Beach Surf Break

Lat Long: 7.78° N 98.30° E

Nai Harn Beach 48 hour detailed Surf Forecast

Issued: 6 pm 17 Oct 2026 (local time)

Forecast update in  hr  min

Today's Nai Harn Beach sea temperature is
30.4°C
1.6° 

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 (18 Oct):

  • Morning surf: Morning surf (18 Oct, local time) - 0.5ft (0.1m), 14s period with SW swell.
  • Afternoon surf: Afternoon surf (18 Oct, local time) - 0.5ft (0.2m), 15s period with WSW swell.
  • Evening surf: Evening surf (18 Oct, local time) - 0.5ft (0.2m), 16s period with WSW swell.

The current surf forecast for Nai Harn Beach at 1AM is: 0.2m 15s primary swell from a West-southwest direction and 0.1m 7s secondary swell from a West direction (forecast issued at 06:00pm October 17). The wind direction is predicted to be cross-shore.

Time (+07) & DateWave HeightWave Period
Morning (18 Oct)0.5ft (0.1m)14s
Afternoon (18 Oct)0.5ft (0.2m)15s
Evening (18 Oct)0.5ft (0.2m)16s

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


Short Range Forecast

Heavy rain (total 64mm), heaviest during Mon night. Warm (max 30°C on Sat afternoon, min 24°C on Sun night). Wind will be generally light.

Sat
17
Sunday
18
Monday
19
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)
0.2
WSW
15
0.2
WSW
15
0.2
WSW
15
0.2
WSW
15
0.1
W
18
0.1
W
18
0.1
W
18
0.2
WSW
15
0.2
WSW
15
0.2
WSW
15
0.2
WSW
16
0.1
SW
16
0.1
SW
16
0.1
SW
16
0.1
W
16
0.1
W
16
0.1
SW
16
0.1
W
15
0.1
SW
14
Wave Graph
Metric surfscale
Energy kJ
21
21
21
21
8
8
8
21
22
23
24
10
10
10
5
5
10
8
8
Wind (km/h)
10
W
10
WNW
15
NW
15
NW
15
NW
15
NNW
10
NNW
15
WNW
15
WNW
15
WNW
5
SE
10
SSW
5
WSW
10
W
15
W
15
W
15
W
15
NW
15
NW
Wind State
cross-on
cross-on
cross
cross
cross
cross-off
cross-off
cross
cross
cross
cross
on
on
cross-on
cross-on
cross-on
cross-on
cross
cross-off
High Tide
1:33PM1.24m
1:56AM1.45m
2:27PM1.10m
3:04AM1.32m
4:48PM1.04m
Low Tide
7:21PM0.63m
8:39AM0.69m
8:07PM0.77m
10:28AM0.77m
clear
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
light rain
light rain
light rain
part cloud
part cloud
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
—
6:13
—
—
—
—
—
—
—
6:13
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:09
—
—
—
—
—
—
—
6:09
—
—
—
—
—
—
—
6:08
—
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 mm
—
—
2
3
2
3
3
2
2
4
6
2
2
3
2
—
—
3
4
Temp °C
30
29
29
29
29
29
29
29
29
29
27
25
25
24
25
26
27
27
27
Feels °C
33
32
32
32
32
32
33
31
31
32
31
28
29
27
27
28
29
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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