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Tenby (South Beach) Surf Forecast
/ Wales – Pembrokeshire (19 surf breaks) /
Surf Forecasts:
Tenby (South Beach) surfForecast / Wales – Pembrokeshire / UK
12 Day Weather and Surf, issued 12 am Wednesday 17 Sep 2025 BST
Best Forecast Surf Conditions for Tenby (South Beach) this week:
The surf forecast for Tenby (South Beach) over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 20) at 4AM. The primary swell is predicted to be 1.7m and 9s period with a secondary swell of 0.1m and 16s. Another secondary swell of 0.1m and 16s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Tenby (South Beach) in the next 12 days are 3.0m 12s and forecast to arrive on Thursday (Sep 18) at 1AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Sunday (Sep 21) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sat 20th Sep) | 5.5ft (1.7m) 9s |
| Best Surf | 4AM (Sat 20th Sep) | 5.5ft (1.7m) 9s |
| Most Powerful | 1AM (Thu 18th Sep) | 10ft (3.0m) 12s |
Table - best surf conditions forecast for Tenby (South Beach) over the next 12 days.
Short Range Forecast Moderate rain (total 18mm), heaviest on Tue night. Very mild (max 17°C on Wed morning, min 14°C on Tue night). Winds decreasing (strong winds from the SSW on Tue night, light winds from the SW by Fri afternoon). | Days 3-6 Weather Summary Moderate rain (total 19mm), heaviest on Sat morning. Very mild (max 16°C on Fri night, min 9°C on Sun night). Winds increasing (calm on Fri night, fresh winds from the NNE by Sun afternoon). | |||||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tue 23 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 10 | 9 | 10 | 12 | 12 | 11 | 9 | 10 | 10 | 10 | 9 | 9 | 8 | 8 | 8 | 4 | 4 | 13 | 13 | 12 | 15 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 141 | 1635 | 2021 | 2209 | 1710 | 1457 | 904 | 782 | 590 | 524 | 282 | 508 | 804 | 232 | 50 | 34 | 8 | 7 | 6 | 6 | 6 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross | cross | cross | cross | cross- on | cross- on | cross | cross | cross- on | cross- off | cross | cross- off | cross- off | cross | cross- off | cross- off | cross- off | off | off | |
High Tide / height (m) | 3:11AM 5.59 | 3:51PM 5.93 | 4:33AM 5.96 | 4:59PM 6.44 | 5:28AM 6.48 | 5:47PM 6.97 | 6:10AM 6.96 | 6:27PM 7.41 | 6:46AM 7.35 | 7:01PM 7.72 | 7:19AM 7.61 | 7:34PM 7.88 | 7:50AM 7.74 | |||||||||
Low Tide / height (m) | 9:44AM 2.47 | 10:30PM 2.08 | 10:56AM 2.00 | 11:28PM 1.57 | 11:45AM 1.48 | 12:11AM 1.10 | 12:25PM 1.03 | 12:46AM 0.73 | 12:58PM 0.70 | 1:17AM 0.49 | 1:29PM 0.49 | 1:46AM 0.38 | 1:58PM 0.41 | |||||||||
Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tue 23 | ||||||||||||||||
| Sunrise | - | 6:54 | - | - | 6:56 | - | - | 6:58 | - | - | 7:00 | - | - | 7:01 | - | - | 7:03 | - | - | 7:05 | - | |
| Sunset | - | - | 7:30 | - | - | 7:27 | - | - | 7:24 | - | - | 7:22 | - | - | 7:20 | - | - | 7:17 | - | - | 7:15 | |
 |  |  |  | | |  | | |  |  |  | | | | |  | | | | | ||
Rain (mm) | 13 | 2 | - | 3 | - | - | - | - | - | 3 | 10 | 3 | - | 2 | 1 | - | - | - | - | - | - | |
| Temp. °C | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 15 | 13 | 15 | 14 | 11 | 12 | 13 | 12 | 13 | 13 | |
| Feels °C (?) | 9 | 12 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 15 | 14 | 12 | 9 | 10 | 7 | 4 | 6 | 7 | 9 | 10 | 9 | |
- 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 Wales - Pembrokeshire
Cross-shore wind has turned cross-on at Tenby (South Beach) (strong winds from the SSW at Pembrey Sands 23 km from Tenby (South Beach)). 1.3m 5s windswell from the SW with a 1.0m 11s groundswell from the WSW. 2 swells combining to make bigger set waves.
23 km away, 1 h 12 min ago
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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 Tenby (South 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 Tenby (South Beach) Surf forecast
The above surf forecast table for Tenby (South Beach) provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Tenby (South Beach) can be found by selecting the local surf guide option on the grey menu. Our Tenby (South 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 (Tenby (South 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 Tenby (South 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.
Are you planning a holiday in Wales - Pembrokeshire? If you are looking for accommodation near Tenby (South Beach), camping, hotels and holiday cottages in Wales - Pembrokeshire, consider staying in Pembroke which is 15 km (9 miles) away. Other places in and around Wales - Pembrokeshire where you can find information about places to rent, and car hire include Milford Haven which is 23 km (14 miles) away, Carmarthen, Fishguard and Aberporth.
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