Surf Forecasts:
Tenby (South Beach) surf forecast from 28 Aug 2026:
- Most powerful swell: Monday 31 Aug, 1AM (local time) - 10ft (3.0m), 9s period, WSW swell with 1,540 kJ wave energy.
Best Forecast Surf Conditions for Tenby (South Beach) this week:
The most powerful waves expected at Tenby (South Beach) in the next 16 days are 3.0m 9s and forecast to arrive on Monday (Aug 31) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Friday (Aug 28) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Mon 31st Aug) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Tenby (South Beach) over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s get straight into it.
We’re looking at Tenby (South Beach) for the next couple of weeks, and truth be told, it’s a slow start. The first few days are a write-off – blown out and messy. You’ll be twiddling your thumbs Thursday through Saturday this week.
Come Sunday, the 31st of August, there’s a little glimmer. A clean, 6ft swell from the WSW with an offshore breeze early. It’s not huge, but it’s rideable and clean. The combined energy is solid at 731, suggesting a bit of push and some proper shape on offer.
Then, we hit the real highlight. On Monday, the 7th of September, we get a beauty. The swell jumps to a solid 10ft from the west, and the wind goes glassy – I mean dead still, 3 mph from the NNE. It doesn't get much cleaner than that. The wave energy is pumping at 1469, which is seriously strong. This is a proper swell, but with that size, it’s one for the experienced crew only; big, powerful, and no room for mistakes. Best point on offer for the experts.
After that morning, the consistency drops off, but the morning of the 10th of September has a gentle, clean offshore 4ft swell that’s surfable, nothing special but a good paddle.
Also, a note on the water – it’s running much warmer than normal for this time of year, getting up to 66°F with a 5°F anomaly. That’s a bit of a treat if you’re getting in.
Signing off, Rusty.
Short Range ForecastHeavy rain (total 26mm), heaviest during Fri night. Very mild (max 19°C on Fri afternoon, min 16°C on Thu night). Winds increasing (light winds from the SW on Thu night, fresh winds from the S by Fri night). | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Sun night. Very mild (max 18°C on Tue morning, min 13°C on Tue night). Winds decreasing (strong winds from the SW on Sun night, light winds from the NNW by Wed morning). | ||||||||||||||||||||
Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | |||||||||||||||
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) | SW 12 | SW 6 | SW 6 | SSW 7 | SW 8 | WSW 9 | WSW 9 | SW 7 | WSW 9 | W 10 | WSW 9 | WSW 9 | W 9 | SW 18 | SW 16 | WSW 6 | W 8 | WSW 5 | WSW 7 | WSW 8 | WSW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 5 | 135 | 128 | 244 | 373 | 848 | 449 | 465 | 1540 | 1264 | 567 | 271 | 40 | 12 | 10 | 61 | 10 | 0 | 387 | 296 | 627 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross-on | cross-off | cross-off | cross-on | cross | cross-off | off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | cross | cross-off | cross | cross-off |
High Tide | 7:15AM7.30m | 7:30PM7.73m | 7:47AM7.62m | 8:03PM7.99m | 8:20AM7.82m | 8:36PM8.09m | 8:53AM7.86m | 9:10PM8.01m | 9:28AM7.74m | 9:47PM7.76m | 10:06AM7.45m | 10:27PM7.34m | 10:49AM7.01m | 11:14PM6.79m | |||||||
Low Tide | 1:25PM0.70m | 1:45AM0.49m | 1:56PM0.43m | 2:16AM0.29m | 2:27PM0.30m | 2:47AM0.25m | 2:59PM0.32m | 3:19AM0.36m | 3:33PM0.49m | 3:54AM0.64m | 4:11PM0.82m | 4:33AM1.07m | 4:54PM1.29m | ||||||||
 | |  | |  | | |  |  | | |  | | | | | | | | |  | |
 | 6:22 | — | — | 6:24 | — | — | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:33 | — | — |
 | — | 8:15 | — | — | 8:13 | — | — | 8:10 | — | — | 8:07 | — | — | 8:06 | — | — | 8:04 | — | — | 8:01 | — |
mm | 2 | 1 | 9 | 3 | — | 1 | 1 | 8 | 5 | — | — | — | 1 | 1 | 1 | — | — | 2 | — | — | — |
Temp °C | 18 | 19 | 18 | 18 | 19 | 16 | 19 | 17 | 16 | 16 | 17 | 16 | 18 | 18 | 16 | 16 | 16 | 18 | 19 | 19 | 19 |
Feels °C | 15 | 16 | 13 | 14 | 14 | 13 | 14 | 12 | 9 | 11 | 13 | 13 | 13 | 13 | 14 | 14 | 13 | 15 | 15 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 11 | S 11 | — | SW 8 | WSW 9 | WSW 9 | — | — | WSW 10 | WSW 9 | — | W 9 | SW 18 | W 8 | WSW 6 | W 8 | — | SSW 15 | SSW 15 | — |
| kJ | 5 | 5 | 2 | — | 373 | 848 | 449 | — | — | 1044 | 567 | — | 40 | 12 | 1 | 61 | 10 | — | 21 | 23 | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | S 18 | — | SW 16 | SW 16 | SW 16 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 6 | — | 10 | 10 | 10 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 6 | SW 6 | SW 6 | SSW 7 | — | — | — | SW 7 | WSW 9 | W 10 | — | WSW 9 | WSW 6 | WSW 5 | WSW 6 | — | WSW 6 | WSW 5 | WSW 7 | WSW 8 | WSW 7 |
| kJ | 154 | 135 | 128 | 244 | — | — | — | 465 | 1540 | 1264 | — | 271 | 61 | 78 | 104 | — | 37 | 125 | 387 | 296 | 627 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 172 | 175 | 314 | 166 | 128 | 339 | 5 | 80 | 377 | 129 | 0 | 129 | 80 | 275 | 126 | 30 | 103 | 336 | 377 | 393 | 339 |
Best forecast wave conditions in Wales - Pembrokeshire | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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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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