Surf Forecasts:
Tenby (South Beach) surf forecast from 2 Sep 2026:
- Best quality surf: Friday 4 Sep, 10AM (local time) - 7ft (2.2m), 8s period, W swell with offshore winds.
- Most powerful swell: Monday 7 Sep, 7PM (local time) - 6.5ft (2.0m), 11s period, WSW swell with 938 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 10AM (local time) - 7ft (2.2m), 8s 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 Friday (Sep 04) at 10AM. The primary swell is predicted to be 2.2m and 8s period with a secondary swell of 2.0m and 8s. Another secondary swell of 0.2m and 14s is also forecast. 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 2.0m 11s and forecast to arrive on Monday (Sep 07) 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 0.8m 5s period and expected on Monday (Sep 07) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Fri 4th Sep) | 7ft (2.2m) 8s |
| Best Surf | 10AM (Fri 4th Sep) | 7ft (2.2m) 8s |
| Most Powerful | 7PM (Mon 7th Sep) | 6.5ft (2.0m) 11s |
Table - best surf conditions forecast for Tenby (South Beach) over the next 16 days.
The Lowdown
Alright, let’s break it down for Tenby South Beach. The water’s well above normal for this time of year, sitting at 66°F with a 5°F anomaly – that’s much warmer than usual, so you’ll be comfy in a spring suit.
The start is flat and grim. Wednesday into Thursday is just waist-high junk with onshore wind, don’t bother. Then Friday morning the 4th of September, it finally turns on. You’ve got a clean 7ft swell from the west, with a moderate offshore breeze out of the WNW. The combined wave energy is pumping at 1207. This is the best of the whole outlook – clean, punchy, and the offshore wind will make it proper for a beginner-friendly wave, though 7ft is a bit big for total beginners.
Saturday morning the 5th is glassy but tiny, only 3ft – clean but not worth getting excited about.
There’s a lull of mediocre conditions until Monday the 7th of September morning, which shows a long-period 5ft swell (12 seconds) from the WSW with cross-offshore wind. The longer period gives it shape, with combined energy at 755 – moderate. At a sheltered beach break it might close out a bit.
The next big one is Friday the 11th of September afternoon: a solid 10ft of WSW groundswell, light offshore wind, and combined energy at 1135. That’s expert-only size – too big for learners – but the best session for the brave.
Sunday the 13th of September afternoon cleans up again: 8ft from WSW with a gentle offshore wind and energy at 752. Good waves, just not as epic as the 11th.
Later on, Wednesday the 16th of September shows another 10ft of SW swell with fresh offshore wind. The afternoon has combined energy of 1624 – that’s strong, heavy water. Experts only.
Thursday the 17th is a smaller 6ft with good offshore wind, a decent gentle finish.
So, the two standouts: Friday the 4th of September morning for the best clean all-rounder, and Friday the 11th of September afternoon for the big, expert bomb. The 16th is also worth watching for the real chargers.
Rusty.
Short Range ForecastLight rain (total 9mm), mostly falling on Thu night. Very mild (max 19°C on Wed afternoon, min 13°C on Fri night). Winds decreasing (fresh winds from the SSW on Wed morning, light winds from the NW by Fri night). | Days 4-6 Weather SummarySome drizzle, heaviest during Mon afternoon. Warm (max 21°C on Sun afternoon, min 14°C on Sat morning). Winds increasing (calm on Sat morning, fresh winds from the WSW by Mon afternoon). | ||||||||||||||||||||
Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | |||||||||||||||
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 6 | SW 7 | WSW 7 | WSW 8 | WSW 8 | WSW 7 | W 8 | WSW 8 | WSW 8 | WSW 8 | WSW 10 | WSW 9 | WSW 9 | W 8 | WSW 8 | WSW 12 | WSW 12 | W 8 | WSW 9 | WSW 9 | WSW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 163 | 312 | 405 | 263 | 302 | 353 | 659 | 404 | 218 | 130 | 132 | 64 | 44 | 33 | 80 | 755 | 857 | 531 | 516 | 572 | 362 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-off | cross-off | cross-off | cross | off | cross-off | off | glassy | cross | cross-on | on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off |
High Tide | 10:06AM7.45m | 10:27PM7.34m | 10:49AM7.01m | 11:14PM6.79m | 11:41AM6.49m | 00:15AM6.20m | 12:51PM6.01m | 1:38AM5.79m | 2:24PM5.84m | 3:16AM5.82m | 3:55PM6.18m | 4:36AM6.28m | 5:04PM6.80m | ||||||||
Low Tide | 4:11PM0.82m | 4:33AM1.07m | 4:54PM1.29m | 5:21AM1.60m | 5:51PM1.83m | 6:26AM2.15m | 7:13PM2.28m | 8:02AM2.45m | 9:02PM2.30m | 9:45AM2.25m | 10:30PM1.85m | 10:58AM1.70m | 11:32PM1.22m | ||||||||
 |  |  |  |  |  |  | |  | | | | | | | | | | | | | |
 | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — |
 | — | 8:04 | — | — | 8:01 | — | — | 7:59 | — | — | 7:57 | — | — | 7:54 | — | — | 7:52 | — | — | 7:50 | — |
mm | 3 | 1 | — | — | — | 5 | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 1 | — |
Temp °C | 18 | 19 | 18 | 19 | 19 | 18 | 16 | 17 | 16 | 15 | 15 | 15 | 19 | 21 | 17 | 16 | 17 | 14 | 16 | 15 | 14 |
Feels °C | 14 | 16 | 15 | 16 | 16 | 15 | 13 | 12 | 13 | 13 | 13 | 13 | 15 | 18 | 17 | 13 | 12 | 9 | 7 | 6 | 6 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 15 | WSW 8 | SW 15 | — | WSW 8 | SSW 14 | WSW 8 | WSW 8 | WSW 10 | WSW 9 | WSW 9 | W 8 | WSW 8 | WSW 12 | — | WSW 10 | — | — | — |
| kJ | 10 | 10 | 9 | 263 | 37 | — | 527 | 20 | 218 | 130 | 132 | 64 | 44 | 33 | 80 | 755 | — | 176 | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | SSW 15 | — | — | SSW 14 | — | SSW 14 | SW 14 | SW 13 | SW 13 | SW 13 | ESE 3 | WSW 14 | — | — | — | — | — | — |
| kJ | — | — | — | 21 | — | — | 21 | — | 20 | 7 | 7 | 7 | 7 | 2 | 70 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SW 14 | — | — | — | SW 13 | WSW 11 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 7 | — | — | — | 6 | 41 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 6 | SW 7 | WSW 7 | — | WSW 8 | WSW 7 | W 8 | WSW 8 | — | — | — | — | SE 4 | SSW 6 | WSW 3 | W 5 | WSW 12 | W 8 | WSW 9 | WSW 9 | WSW 7 |
| kJ | 163 | 312 | 405 | — | 302 | 353 | 659 | 404 | — | — | — | — | 12 | 21 | 5 | 28 | 857 | 531 | 516 | 572 | 362 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 339 | 414 | 141 | 127 | 428 | 230 | 0 | 368 | 0 | 8 | 75 | 8 | 155 | 29 | 67 | 5 | 763 | 377 | 329 | 672 | 625 |
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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