Nai Harn Beach Surf Forecast

/ Phuket (13 surf breaks) /

Thailand (35 surf breaks) / Lat Long: (7.78° N 98.30° E)

Surf Forecasts:

Nai Harn Beach surfForecast / Phuket / Thailand

12 Day Weather and Surf, issued 6 pm Monday 13 Oct 2025 +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 29.1° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Nai Harn Beach this week:

The surf forecast for Nai Harn Beach over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Oct 15) at 7AM. The primary swell is predicted to be 0.2m and 18s period with a secondary swell of 0.3m and 6s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Nai Harn Beach in the next 12 days are 0.6m 11s and forecast to arrive on Saturday (Oct 18) at 4PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 5s period and expected on Wednesday (Oct 15) at 7PM.

Wave Type	Time (+07) & Date	Wave Height & Period
Next good surf (1 star+)	7AM (Wed 15th Oct)	0.5ft (0.2m) 18s
Best Surf	7AM (Wed 15th Oct)	0.5ft (0.2m) 18s
Most Powerful	4PM (Sat 18th Oct)	2ft (0.6m) 11s

Table - best surf conditions forecast for Nai Harn Beach over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

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	Short Range Forecast Moderate rain (total 17mm), heaviest on Tue morning. Warm (max 28°C on Mon afternoon, min 27°C on Mon night). Wind will be generally light.											Days 3-6 Weather Summary Moderate rain (total 17mm), heaviest on Fri night. Warm (max 29°C on Thu afternoon, min 27°C on Thu night). Wind will be generally light.
	Mon 13		Tuesday 14			Wednesday 15			Thursday 16			Friday 17			Saturday 18			Sunday 19
	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM
Rating (10 max)	0	0	0	0	0	0	0	0	0	0	0	1	0	1	1	0	0	1	0	1	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	W	WSW	WSW	W	W	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	W
Period(s) (?)	6	5	6	21	20	18	17	16	16	15	15	8	8	8	9	11	10	10	10	9	9
Wave Graph (?)
kJ (?)	18	9	13	8	8	31	27	25	25	22	21	23	22	21	50	93	80	78	75	48	40
Wind (km/h)	WSW	NW	WNW	WSW	SSW	E	S	ENE	ENE	SW	NE	NE	NW	NNW	N	WSW	SW	ENE	WSW	N	E
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross	cross- on	cross- on	glass	cross- off	cross- on	off	off	on	off	off	cross	cross- off	glass	on	on	glass	on	cross- off	cross- off
High Tide / height (m)		3:04AM 1.46		4:39PM 1.08		5:06AM 1.35		7:08PM 1.17	6:59AM 1.40		8:08PM 1.34	8:01AM 1.51		8:44PM 1.51	8:42AM 1.61		9:13PM 1.66	9:15AM 1.68		9:39PM 1.78	9:45AM 1.73
Low Tide / height (m)		8:19PM 0.67	10:18AM 0.66		10:06PM 0.84	12:33PM 0.63		12:42AM 0.81		1:46PM 0.51	1:56AM 0.66		2:27PM 0.38	2:40AM 0.50		2:58PM 0.28	3:15AM 0.37		3:25PM 0.20	3:45AM 0.26

	Mon 13		Tuesday 14			Wednesday 15			Thursday 16			Friday 17			Saturday 18			Sunday 19
Sunrise	-	-	6:13	-	-	6:13	-	-	6:13	-	-	6:13	-	-	6:13	-	-	6:13	-	-	6:13
Sunset	6:12	-	-	6:10	-	-	6:10	-	-	6:09	-	-	6:09	-	-	6:09	-	-	6:08	-	-

Rain (mm)	-	3	6	-	3	-	1	4	-	1	1	1	2	5	2	1	3	1	-	5	-
Temp. °C	28	28	28	28	28	28	28	28	28	29	28	28	29	28	28	29	28	28	29	28	28
Feels °C (?)	30	31	31	31	32	31	32	32	32	33	32	33	33	31	33	32	33	33	31	32	31

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for Phuket

Wind Update The wind is still cross-on at Nai Harn Beach (light winds from the W at Phuket 16 km from Nai Harn Beach). 0.3m 5s windswell from the WSW with a 0.1m 9s swell, also from the WSW and a 0.1m 12s groundswell, also from the WSW as well as a 0.1m 3s local chop, also from the WSW. 4 swells combining to make bigger set waves.
1 hour 8 minutes ago Nai Harn Beach

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16 km away, 1 h 8 min ago

11 km/h

0.0

29.1

Air / Water (°C)

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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.

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 12 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.