Nai Harn Beach surf break

Nai Harn Beach surfForecast / Phuket / Thailand

information circle16 Day Weather and Surf, issued 12 am Friday 15 May 2026 +07
Forecast update in hr  min  s Forecast update imminent
Nai Harn Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Nai Harn Beach sea temperature is
31.4° C
(Which is 1.5°C warmer than normal for this time of year)

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 2.4m 7s and forecast to arrive on Thursday (May 21) at 10AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 7s period and expected on Tuesday (May 19) at 4PM.

Wave TypeTime (+07) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful10AM (Thu 21st May)8ft (2.4m) 7s

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 59mm), heaviest during Sat morning. Warm (max 29°C on Thu night, min 27°C on Sat night). Winds increasing (light winds from the W on Thu night, strong winds from the W by Sun morning).

Days 4-6 Weather Summary

Heavy rain (total 98mm), heaviest during Mon afternoon. Warm (max 29°C on Mon night, min 26°C on Mon afternoon). Mainly strong winds.

Friday
15
Saturday
16
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
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
Wave
Height (m)
Direction
Period (s)
1.7
W
8
1.8
W
8
1.4
W
9
1.3
W
9
1.4
WSW
9
1.3
W
6
1.8
W
7
1.8
W
8
1.7
W
8
2
W
8
2.1
W
8
2
W
8
0.1
W
18
0.1
SW
18
0.2
WSW
17
0.3
WSW
16
1.8
W
7
2
W
7
2.4
W
7
2.1
W
8
1.7
W
8
Wave Graph
Metric surfscale
Energy kJ
368
387
290
287
326
114
311
367
332
446
531
502
6
12
27
50
302
407
628
517
355
Wind (km/h)
30
WSW
30
W
30
WNW
20
SW
30
WSW
35
W
40
W
45
W
40
WNW
40
W
35
W
40
W
35
W
45
W
40
W
35
W
40
W
35
W
35
WSW
35
WSW
25
SW
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
High Tide
9:16AM1.96m
9:32PM1.74m
9:56AM2.07m
10:17PM1.77m
10:37AM2.13m
11:02PM1.75m
11:19AM2.12m
11:47PM1.69m
12:02PM2.06m
00:34AM1.59m
12:47PM1.95m
1:26AM1.47m
1:36PM1.80m
2:25AM1.36m
Low Tide
3:33PM0.15m
3:35AM0.06m
4:17PM0.05m
4:16AM0.05m
5:01PM0.00m
4:58AM0.08m
5:45PM0.02m
5:40AM0.16m
6:32PM0.08m
6:24AM0.28m
7:22PM0.19m
7:12AM0.42m
8:17PM0.31m
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
mod rain
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
mod rain
mod rain
mod rain
thunderstorm
thunderstorm
mod rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:07
6:07
6:07
6:07
6:07
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:37
6:37
6:37
6:37
6:37
6:37
6
3
9
14
7
10
1
3
23
6
20
15
1
6
14
6
7
9
2
2
6
Temp °C
29
29
29
28
28
29
29
29
27
27
28
29
29
29
29
28
29
29
29
30
30
29
28
29
29
28
26
26
26
26
25
27
27
28
27
27
26
27
28
28
30
31
Swell 1
Height (m)
Direction
Period (s)
0.1
W
18
0.1
W
16
0.1
W
16
1.3
W
9
0.1
W
16
0.1
W
16
0.1
W
15
0.1
W
21
0.1
W
20
0.1
W
18
0.1
SW
18
0.2
WSW
17
0.3
WSW
16
0.2
WSW
16
0.3
WSW
16
0.3
WSW
15
Energy kJ
7
5
5
287
5
5
4
9
7
6
12
27
50
26
47
44
Swell 2
Height (m)
Direction
Period (s)
0.1
W
14
0.1
W
17
0.1
W
21
0.1
W
15
0.2
NNW
7
Energy kJ
4
6
9
4
4
Swell 3
Height (m)
Direction
Period (s)
Energy kJ
Wind waves
Height (m)
Direction
Period (s)
1.7
W
8
1.8
W
8
1.4
W
9
0.9
WSW
9
1.4
WSW
9
1.3
W
6
1.8
W
7
1.8
W
8
1.7
W
8
2
W
8
2.1
W
8
2
W
8
1.8
W
7
2
W
7
1.8
W
7
1.8
W
7
1.8
W
7
2
W
7
2.4
W
7
2.1
W
8
1.7
W
8
Energy kJ
368
387
290
149
326
114
311
367
332
446
531
502
340
366
324
303
302
407
628
517
355
Nearest Offshore or Glassy
Rating
(10 max)
2
4
4
2
2
3
2
2
2
2
3
3
3
3
3
3
2
2
4
2
2
Distance (km)
24
635
635
24
24
797
797
797
797
797
797
797
797
797
797
797
744
24
641
797
24
Best forecast wave conditions in Phuket
Rating
(10 max)
2
2
2
2
2
Best forecast wave conditions in Thailand
Rating
(10 max)
2
2
2
2
2
Header Global
Rating
(10 max)
5
5
5
4
5
5
4
4
6
4
6
4
4
6
4
5
5
5
4
5
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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