Surf Forecasts:
Tenby (South Beach) surf forecast from 3 Aug 2026:
- Most powerful swell: Wednesday 5 Aug, 10AM (local time) - 7ft (2.2m), 8s period, WSW swell with 615 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 2.2m 8s and forecast to arrive on Wednesday (Aug 05) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 6s period and expected on Thursday (Aug 06) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Wed 5th Aug) | 7ft (2.2m) 8s |
Table - best surf conditions forecast for Tenby (South Beach) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight with you – this is a tough one. The next sixteen days are looking bleak for Tenby (South Beach). There’s no real rideable swell on the cards, and the models are showing nothing but flat spells and junk. We’ve got a long stretch of poor conditions ahead.
Starting off Monday the 3rd of August, we’ve got a weak 3ft swell from the WSW, but with a 12 mph onshore breeze from the SE, it’s just messy. The combined energy is a paltry 120 (weak), and the waves are poor. That theme sticks around Tuesday the 4th with a bit more size at 4ft, but the wind swings SSW and picks up to 15 mph, cross-onshore, making it choppy and ugly. Energy bumps to 197 (weak) but the quality is still garbage.
Wednesday the 5th sees the swell jump to 7ft from the WSW, but the period is short at 8 seconds. The wind is cross-offshore from the W at 18 mph, which cleans it up a bit, but the energy (622 - moderate) is all short-period wind swell. That’s a lumpy, powerful mess, and for a sheltered beach break, it’s going to be a washing machine. Honestly, that setup looks more interesting for kite surfing than paddle surfing.
Thursday the 6th morning offers a brief window with 5ft from the W and a 6-second period, but the wind is offshore from the WNW at 12 mph. That’s clean, but the energy is only 174 (weak) and the swell is tiny by the afternoon, dropping to 0.7ft. After that, it’s a long, slow death. From Friday the 7th right through to Tuesday the 18th of August, we’re looking at wave heights mostly below 2ft. The combined energy readings are all in the single or low double digits, which is extremely weak. We get a few clean mornings with offshore breezes, but there’s nothing to push through. The water temperature is about average for this time of year, so no surprises there.
The only tiny flicker of life is on the 16th and 17th of August, where we see a very long-period groundswell from the S (20 seconds) and SW (19 seconds) arriving, but the height is only 0.3ft. That’s a ghost. The energy is 28 and 17, respectively – that’s weak. For a sheltered beach break, a long-period groundswell with that little height won’t break. Save your energy.
There’s just nothing to recommend here. It’s a brutal stretch of flatness. Hang in there, and check back in a few days – forecasts can change.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Mon night. Warm (max 22°C on Mon afternoon, min 15°C on Tue night). Winds increasing (light winds from the SSW on Mon night, fresh winds from the WSW by Wed afternoon). | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Fri afternoon, min 14°C on Wed night). Winds decreasing (fresh winds from the WNW on Wed night, calm by Thu night). | ||||||||||||||||||||
Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | |||||||||||||||
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) | WSW 9 | WSW 9 | SW 8 | SW 7 | SW 7 | SW 7 | WSW 8 | WSW 7 | WSW 7 | W 6 | W 10 | WSW 5 | W 5 | WSW 5 | W 9 | W 9 | W 9 | W 4 | WSW 8 | SW 7 | SW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 119 | 96 | 69 | 189 | 165 | 342 | 615 | 404 | 285 | 166 | 8 | 30 | 13 | 8 | 6 | 7 | 7 | 6 | 26 | 14 | 11 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-on | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off |
High Tide | 9:56AM7.31m | 10:14PM7.47m | 10:34AM7.12m | 10:54PM7.19m | 11:17AM6.83m | 11:40PM6.81m | 12:08PM6.47m | 00:38AM6.40m | 1:13PM6.15m | 1:52AM6.08m | 2:34PM6.03m | 3:18AM6.07m | 3:58PM6.26m | ||||||||
Low Tide | 4:01PM0.86m | 4:23AM0.91m | 4:38PM1.08m | 5:03AM1.19m | 5:21PM1.40m | 5:50AM1.55m | 6:15PM1.77m | 6:51AM1.93m | 7:27PM2.08m | 8:12AM2.17m | 8:59PM2.14m | 9:43AM2.07m | 10:27PM1.82m | ||||||||
 |  |  |  | |  | |  | | | | | | |  | | | | | | | |
 | 5:43 | — | — | 5:45 | — | — | 5:47 | — | — | 5:48 | — | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — |
 | — | — | 9:05 | — | — | 9:02 | — | — | 9:00 | — | 8:59 | — | — | 8:58 | — | — | 8:55 | — | — | 8:53 | — |
mm | — | — | 1 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 22 | 19 | 19 | 19 | 17 | 17 | 18 | 17 | 17 | 17 | 15 | 17 | 19 | 16 | 19 | 19 | 17 | 20 | 21 | 17 |
Feels °C | 18 | 19 | 18 | 17 | 14 | 14 | 12 | 11 | 11 | 13 | 13 | 13 | 15 | 16 | 14 | 15 | 15 | 16 | 19 | 18 | 14 |
Swell 1 Height (m) Direction Period (s) | WSW 9 | WSW 9 | SW 8 | SW 15 | SW 15 | S 14 | SW 13 | SW 13 | SW 13 | W 10 | W 10 | WSW 5 | W 5 | WSW 5 | WSW 4 | W 9 | W 9 | W 4 | WSW 8 | SW 7 | SW 6 |
| kJ | 119 | 96 | 69 | 8 | 8 | 4 | 7 | 7 | 7 | 2 | 8 | 30 | 13 | 8 | 2 | 6 | 6 | 6 | 26 | 14 | 11 |
Swell 2 Height (m) Direction Period (s) | — | ESE 3 | — | — | — | — | — | — | — | SW 13 | SW 12 | W 10 | W 9 | W 9 | W 9 | SW 13 | SW 13 | W 8 | W 8 | W 8 | W 4 |
| kJ | — | 1 | — | — | — | — | — | — | — | 6 | 6 | 7 | 7 | 6 | 6 | 7 | 7 | 6 | 1 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | S 16 | SW 12 | SW 12 | SW 12 | SW 12 | S 11 | S 11 | SW 9 | SW 12 | SW 12 | W 8 |
| kJ | — | — | — | — | — | — | — | — | — | — | 5 | 6 | 6 | 6 | 5 | 2 | 2 | 3 | 6 | 6 | 1 |
Wind waves Height (m) Direction Period (s) | ESE 3 | — | — | SW 7 | SW 7 | SW 7 | WSW 8 | WSW 7 | WSW 7 | W 6 | W 6 | — | — | — | — | WSW 4 | WSW 4 | — | W 5 | W 4 | — |
| kJ | 1 | — | — | 189 | 165 | 342 | 615 | 404 | 285 | 166 | 71 | — | — | — | — | 2 | 3 | — | 12 | 6 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 28 | 88 | 29 | 384 | 339 | 377 | 428 | 339 | 407 | 490 | 369 | 373 | 375 | 409 | 375 | 364 | 368 | 173 | 25 | 181 | 346 |
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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