Surf Forecasts:
Tenby (South Beach) surf forecast from 26 Aug 2026:
- Best quality surf: Sunday 30 Aug, 4AM (local time) - 7ft (2.1m), 10s period, WSW swell with cross-offshore winds.
- Most powerful swell: Saturday 29 Aug, 10PM (local time) - 8ft (2.5m), 10s period, WSW swell with 1,373 kJ wave energy.
- Next surfable swell (1★+): Sunday 30 Aug, 4AM (local time) - 7ft (2.1m), 10s period with WSW 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 Sunday (Aug 30) at 4AM. The primary swell is predicted to be 2.1m and 10s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Tenby (South Beach) in the next 16 days are 2.5m 10s and forecast to arrive on Saturday (Aug 29) at 10PM. Winds are predicted to be 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 Wednesday (Sep 02) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sun 30th Aug) | 7ft (2.1m) 10s |
| Best Surf | 4AM (Sun 30th Aug) | 7ft (2.1m) 10s |
| Most Powerful | 10PM (Sat 29th Aug) | 8ft (2.5m) 10s |
Table - best surf conditions forecast for Tenby (South Beach) over the next 16 days.
The Lowdown
Alright, I’ve had a solid look at the charts for the next 16 days here at Tenby (South Beach). Honestly, I’m not gonna sugarcoat it – this stretch is looking pretty grim for surfers. The wave energy is weak for most of it, and the quality is poor. There’s a big gap of nothing really worth paddling out for until we get into the first week of September.
The water temperature is sitting at 66°F, which is a massive 5°F warmer than usual for this time of year. That’s a real standout – you’ll be feeling that warmth when you’re sitting out there, but it’s not going to make up for the lack of waves.
We’ve got a few days with some swell, but the wind is just not playing ball. On Friday the 28th, the swell picks up to 8 ft from the SW, but it’s short period at 7 seconds and the wind is cross-off, so it’s clean but messy. The combined energy is moderate at 535. That’s one of the better windows, but it’s still nothing to write home about. Saturday the 29th has some size too, but the wind is onshore and lumpy.
Then we hit a real dry spell. From Sunday the 30th right through to Thursday the 5th of September, it’s mostly small, weak, and blown out. The best of a bad bunch is probably Saturday the 5th of September, where we get a clean 7 ft swell from the WSW with a bit more period at 8 seconds, and light cross-off winds. The energy is moderate at 502, and it’s flagged as “expect good surf conditions.” That’s the standout session, but it’s a long way off and you’d be relying on the forecast holding.
The morning of Sunday the 6th of September also looks promising with glassy conditions and a 6 ft WSW swell, period around 7 seconds, and combined energy of 443. That’s another clean window, but again, it’s deep into the forecast.
Overall, this is a tough run. The surf is mostly inconsistent, the wind is often strong or onshore, and the swell direction is never quite right for this sheltered spot. If you’re a beginner, the bigger days over 7 ft might be a bit much, and the short period makes it dumpy. There’s a glimmer late in the first week of September, but don’t hold your breath. For kite surfers, the strong cross-off winds on the bigger days might be more interesting than paddling.
Rusty
Short Range ForecastHeavy rain (total 32mm), heaviest during Fri morning. Warm (max 23°C on Wed afternoon, min 16°C on Fri morning). Winds increasing (light winds from the E on Wed afternoon, fresh winds from the SSE by Fri night). | Days 5-7 Weather SummaryHeavy rain (total 27mm), heaviest during Sun afternoon. Very mild (max 19°C on Sat afternoon, min 14°C on Sun night). Mainly fresh winds. | |||||||||||||||||||
Wed 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | ||||||||||||||
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 8 | ESE 4 | SW 7 | SW 6 | SW 7 | WSW 7 | WSW 7 | SW 6 | SW 8 | WSW 10 | WSW 9 | SW 6 | WSW 8 | WSW 10 | WSW 9 | WSW 8 | WSW 7 | WSW 7 | WSW 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 12 | 10 | 11 | 11 | 54 | 535 | 306 | 306 | 184 | 337 | 1138 | 407 | 328 | 666 | 1129 | 826 | 481 | 245 | 164 | 99 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross | cross-off | cross-off | cross-off | cross | cross-on | cross-off | cross-off | cross | cross-on | cross-off | cross-off | cross-off | cross-off | off | cross-off | off |
High Tide | 6:24PM6.85m | 6:42AM6.88m | 6:58PM7.34m | 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 | |||||||
Low Tide | 00:41AM1.25m | 12:53PM1.08m | 1:14AM0.82m | 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 | |||||||
 |  |  |  |  |  |  |  |  | |  | | | |  | | | | | | |
 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — |
 | 8:19 | — | — | 8:16 | — | — | 8:15 | — | — | 8:13 | — | — | 8:10 | — | — | 8:07 | — | — | 8:06 | — |
mm | — | 1 | 4 | — | 3 | 9 | 1 | 8 | 6 | 2 | — | 2 | 16 | 2 | — | — | 5 | — | — | — |
Temp °C | 23 | 20 | 19 | 19 | 17 | 17 | 19 | 17 | 18 | 19 | 16 | 18 | 16 | 15 | 16 | 16 | 16 | 16 | 16 | 16 |
Feels °C | 22 | 19 | 18 | 17 | 16 | 15 | 17 | 15 | 13 | 16 | 12 | 14 | 10 | 13 | 11 | 10 | 11 | 11 | 11 | 13 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | WSW 7 | SW 7 | W 8 | — | S 12 | — | SW 6 | SW 8 | WSW 10 | WSW 9 | — | — | — | — | — | S 18 | SW 18 | SW 16 |
| kJ | 12 | 10 | 11 | 11 | 6 | — | 3 | — | 184 | 337 | 1138 | 407 | — | — | — | — | — | 6 | 12 | 10 |
Swell 2 Height (m) Direction Period (s) | S 4 | SSW 7 | SSW 6 | ESE 3 | W 7 | — | — | — | S 11 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 2 | 5 | 4 | 1 | 1 | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SSW 7 | SW 12 | SW 12 | W 7 | SW 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 11 | 6 | 6 | 4 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | ESE 3 | ESE 4 | SSW 3 | SW 6 | SW 7 | WSW 7 | WSW 7 | — | — | — | — | SW 6 | WSW 8 | WSW 10 | WSW 9 | WSW 8 | WSW 7 | WSW 7 | WSW 8 |
| kJ | — | 1 | 11 | 2 | 54 | 535 | 306 | 306 | — | — | — | — | 328 | 666 | 1129 | 826 | 481 | 245 | 164 | 99 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 353 | 346 | 346 | 172 | 154 | 129 | 329 | 111 | 169 | 339 | 5 | 80 | 101 | 5 | 230 | 339 | 561 | 0 | 329 | 31 |
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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