Surf Forecasts:
Tenby (South Beach) surf forecast from 5 Sep 2026:
- Best quality surf: Monday 7 Sep, 7AM (local time) - 5ft (1.6m), 11s period, WSW swell with offshore winds.
- Most powerful swell: Monday 7 Sep, 7PM (local time) - 8ft (2.4m), 12s period, WSW swell with 1,578 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 7AM (local time) - 5ft (1.6m), 11s 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 Monday (Sep 07) at 7AM. The primary swell is predicted to be 1.6m and 11s period with a secondary swell of 1.0m and 14s. Another secondary swell of 0.9m 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 2.4m 12s 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 1.6m 6s period and expected on Thursday (Sep 10) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Mon 7th Sep) | 5ft (1.6m) 11s |
| Best Surf | 7AM (Mon 7th Sep) | 5ft (1.6m) 11s |
| Most Powerful | 7PM (Mon 7th Sep) | 8ft (2.4m) 12s |
Table - best surf conditions forecast for Tenby (South Beach) over the next 16 days.
The Lowdown
Right, Rusty here again. Let's talk about Tenby (South Beach) in feet and miles per hour.
Looking at the whole 16-day window, it's a bleak stretch, to be honest. Not much to surf for a long time. The water is sitting at about 66°, which is a solid 5° warmer than normal for this time of year – that's pretty unusual.
The first few days are a right-off. Saturday the 5th and Sunday the 6th have almost no energy in the water, with messy winds. Not worth paddling out.
We get a pulse on Monday the 7th of September. Swell jumps up to around 7ft from the WSW with a very long period of 13 seconds. Wave energy gets up there too. That size is over 8ft in the afternoon, so it's strictly for experts. Wind is a cross-offshore, so it should be fairly clean. That long-period groundswell on a sheltered beach break can close out a bit, though. This is the best we've got, and it's still only marginal.
After that, it drops fast. Tuesday the 8th still has some size around 6ft, but it's fading. By Wednesday, we're small and weak.
From Thursday the 10th right through to the 20th, it's mostly tiny – under 2ft for the most part, with very low energy. There's some offshore wind on a few days, but there's nothing to ride. The last week is totally flat.
So the only window that might give you a wave is Monday the 7th, and only for the crew in the water. For everyone else, it's a long, quiet spell. It doesn't usually stay this bad for long, but this one looks rough.
Rusty, signing out.
Short Range ForecastLight rain (total 6mm), mostly falling on Sat night. Warm (max 20°C on Sun afternoon, min 13°C on Mon night). Winds increasing (light winds from the S on Sat night, fresh winds from the WSW by Mon afternoon). | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Wed night. Very mild (max 18°C on Thu morning, min 13°C on Tue night). Winds increasing (light winds from the WNW on Tue night, strong winds from the SW by Wed night). | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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 7 | WSW 10 | WSW 9 | SW 6 | SW 6 | WSW 8 | WSW 13 | WSW 13 | WSW 11 | WSW 10 | WSW 10 | W 6 | W 7 | W 6 | WSW 7 | WSW 7 | WSW 8 | WSW 9 | W 6 | W 7 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 139 | 163 | 94 | 47 | 95 | 145 | 1490 | 1574 | 1340 | 603 | 502 | 156 | 148 | 64 | 94 | 342 | 588 | 474 | 243 | 324 | 280 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | on | on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | cross | cross-off | cross-off | cross-off | off | off | off |
High Tide | 12:51PM6.01m | 1:38AM5.79m | 2:24PM5.84m | 3:16AM5.82m | 3:55PM6.18m | 4:36AM6.28m | 5:04PM6.80m | 5:34AM6.88m | 5:56PM7.44m | 6:21AM7.44m | 6:40PM7.96m | 7:02AM7.85m | 7:20PM8.27m | ||||||||
Low Tide | 7:13PM2.28m | 8:02AM2.45m | 9:02PM2.30m | 9:45AM2.25m | 10:30PM1.85m | 10:58AM1.70m | 11:32PM1.22m | 11:52AM1.09m | 00:19AM0.65m | 12:36PM0.57m | 1:00AM0.22m | 1:15PM0.21m | 1:37AM0.00m | ||||||||
 |  |  | |  |  | | | | | |  | | |  |  | | | | | | |
 | 6:35 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:46 | — | — |
 | — | 7:57 | — | — | 7:54 | — | — | 7:52 | — | — | 7:50 | — | — | 7:47 | — | — | 7:45 | — | — | 7:44 | — |
mm | — | — | 3 | — | — | — | — | — | 3 | — | — | — | — | — | 5 | 1 | — | — | — | — | — |
Temp °C | 16 | 16 | 16 | 19 | 20 | 18 | 17 | 17 | 15 | 16 | 16 | 15 | 16 | 15 | 16 | 18 | 18 | 16 | 15 | 16 | 16 |
Feels °C | 13 | 13 | 13 | 15 | 16 | 17 | 12 | 12 | 11 | 10 | 10 | 10 | 12 | 11 | 10 | 12 | 12 | 11 | 8 | 9 | 13 |
Swell 1 Height (m) Direction Period (s) | WSW 7 | WSW 10 | WSW 9 | SW 6 | SW 13 | WSW 16 | W 13 | — | — | — | — | W 9 | W 7 | WSW 8 | W 13 | W 12 | — | — | WSW 9 | — | — |
| kJ | 139 | 163 | 94 | 47 | 6 | 103 | 427 | — | — | — | — | 42 | 148 | 14 | 3 | 3 | — | — | 118 | — | — |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SW 13 | SW 13 | WSW 9 | — | SW 12 | — | — | — | — | — | S 11 | — | NNW 5 | — | — | — | — | — | — | — |
| kJ | 19 | 7 | 7 | 16 | — | 6 | — | — | — | — | — | 2 | — | 4 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SW 14 | W 15 | — | SW 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 7 | 4 | — | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | ESE 2 | SW 6 | WSW 8 | WSW 13 | WSW 13 | WSW 11 | WSW 10 | WSW 10 | W 6 | — | W 6 | WSW 7 | WSW 7 | WSW 8 | WSW 9 | W 6 | W 7 | W 8 |
| kJ | — | — | — | 1 | 95 | 145 | 1490 | 1574 | 1340 | 603 | 502 | 156 | — | 64 | 94 | 342 | 588 | 474 | 243 | 324 | 280 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 30 | 111 | 28 | 285 | 172 | 127 | 369 | 369 | 5 | 147 | 368 | 0 | 174 | 339 | 339 | 230 | 339 | 409 | 369 | 369 | 0 |
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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