Surf Forecasts:
Tenby (South Beach) surf forecast from 17 Sep 2026:
- Best quality surf: Thursday 17 Sep, 10PM (local time) - 5.5ft (1.7m), 7s period, W swell with offshore winds.
- Most powerful swell: Friday 18 Sep, 7PM (local time) - 8ft (2.5m), 7s period, WSW swell with 637 kJ wave energy.
- Next surfable swell (1★+): Thursday 17 Sep, 10PM (local time) - 5.5ft (1.7m), 7s period with W swell.
Best Forecast Surf Conditions for Tenby (South Beach) this week:
The surf forecast for Tenby (South Beach) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 17) at 10PM. The primary swell is predicted to be 1.7m and 7s period with a secondary swell of 0.5m and 10s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Tenby (South Beach) in the next 16 days are 2.5m 7s and forecast to arrive on Friday (Sep 18) at 7PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Friday (Sep 18) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Thu 17th Sep) | 5.5ft (1.7m) 7s |
| Best Surf | 10PM (Thu 17th Sep) | 5.5ft (1.7m) 7s |
| Most Powerful | 7PM (Fri 18th Sep) | 8ft (2.5m) 7s |
Table - best surf conditions forecast for Tenby (South Beach) over the next 16 days.
Short Range ForecastLight rain (total 3mm), mostly falling on Fri afternoon. Very mild (max 18°C on Sat morning, min 13°C on Thu night). Winds decreasing (fresh winds from the SW on Fri afternoon, light winds from the NW by Sat night). | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Mon afternoon, min 13°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | W 8 | W 7 | W 7 | WSW 7 | WSW 6 | WSW 8 | WSW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | W 7 | W 10 | W 10 | W 11 | W 14 | W 13 | W 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 408 | 439 | 262 | 197 | 344 | 604 | 637 | 428 | 212 | 108 | 72 | 54 | 55 | 40 | 25 | 48 | 74 | 112 | 150 | 128 | 103 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | cross-off | cross | cross-off | cross-off | cross-off | off | glassy | cross-off | cross-off | cross-off | cross-off | cross | cross-on | glassy | cross | on | cross-on | off |
High Tide | 10:31AM6.58m | 10:52PM6.21m | 11:11AM6.00m | 11:37PM5.61m | 12:05PM5.46m | 00:45AM5.12m | 1:31PM5.11m | 2:29AM4.97m | 3:17PM5.23m | 4:00AM5.29m | 4:28PM5.72m | 4:55AM5.84m | 5:14PM6.32m | ||||||||
Low Tide | 4:37PM1.74m | 4:54AM2.09m | 5:20PM2.32m | 5:42AM2.65m | 6:23PM2.84m | 7:03AM3.06m | 8:11PM3.08m | 9:00AM3.06m | 9:53PM2.80m | 10:20AM2.64m | 10:52PM2.28m | 11:09AM2.08m | 11:34PM1.69m | ||||||||
 |  |  |  |  |  |  | | | | | | | | | | | | | | | |
 | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | 7:03 | — | — | 7:05 | — | — |
 | — | 7:30 | — | — | 7:27 | — | — | 7:24 | — | — | 7:22 | — | — | 7:20 | — | — | 7:17 | — | — | 7:15 | — |
mm | — | — | — | — | 2 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 14 | 15 | 17 | 17 | 18 | 17 | 15 | 14 | 15 | 17 | 19 | 21 | 19 | 18 | 20 | 20 | 17 | 18 | 17 |
Feels °C | 10 | 8 | 9 | 10 | 12 | 12 | 14 | 12 | 12 | 12 | 13 | 17 | 19 | 20 | 20 | 18 | 21 | 20 | 15 | 18 | 17 |
Swell 1 Height (m) Direction Period (s) | — | — | W 10 | S 12 | W 12 | SW 16 | SW 16 | W 14 | W 9 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | W 7 | W 10 | W 10 | W 11 | W 10 | WSW 9 | W 12 |
| kJ | — | — | 73 | 3 | 27 | 10 | 10 | 4 | 64 | 108 | 72 | 54 | 55 | 40 | 25 | 48 | 74 | 112 | 94 | 58 | 103 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | W 15 | SW 16 | SW 14 | W 13 | SW 14 | SW 13 | SW 13 | SW 13 | W 9 | S 12 | W 18 | WSW 16 | W 14 | W 13 | — |
| kJ | — | — | — | — | — | — | 4 | 10 | 8 | 14 | 8 | 7 | 7 | 7 | 6 | 3 | 6 | 84 | 150 | 128 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SW 14 | — | — | SW 13 | W 14 | SW 13 | — | S 12 | S 12 | S 12 | S 12 | S 11 |
| kJ | — | — | — | — | — | — | — | — | — | 8 | — | — | 7 | 4 | 7 | — | 3 | 3 | 3 | 3 | 2 |
Wind waves Height (m) Direction Period (s) | W 8 | W 7 | W 7 | WSW 7 | WSW 6 | WSW 8 | WSW 8 | WSW 8 | WSW 7 | — | — | WSW 2 | — | — | — | — | — | — | SE 2 | — | N 2 |
| kJ | 408 | 439 | 262 | 197 | 344 | 604 | 637 | 428 | 212 | — | — | 1 | — | — | — | — | — | — | 1 | — | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 408 | 369 | 0 | 339 | 377 | 339 | 230 | 230 | 0 | 30 | 30 | 111 | 127 | 180 | 68 | 25 | 8 | 8 | 28 | 8 | 8 |
Best forecast wave conditions in Wales - Pembrokeshire | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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 16 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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