Surf Forecasts:
Tenby (South Beach) surf forecast from 4 Sep 2026:
- Best quality surf: Monday 7 Sep, 7AM (local time) - 6.5ft (2.0m), 14s period, WSW swell with offshore winds.
- Most powerful swell: Monday 7 Sep, 7AM (local time) - 6.5ft (2.0m), 14s period, WSW swell with 1,548 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 1AM (local time) - 5ft (1.6m), 7s 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 Saturday (Sep 05) at 1AM. The primary swell is predicted to be 1.6m and 7s period with a secondary swell of 0.2m and 14s. 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 14s and forecast to arrive on Monday (Sep 07) at 7AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Wednesday (Sep 09) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sat 5th Sep) | 5ft (1.6m) 7s |
| Best Surf | 7AM (Mon 7th Sep) | 6.5ft (2.0m) 14s |
| Most Powerful | 7AM (Mon 7th Sep) | 6.5ft (2.0m) 14s |
Table - best surf conditions forecast for Tenby (South Beach) over the next 16 days.
The Lowdown
Alright, this is Rusty. Let’s talk about what’s going on down at Tenby.
First up, the water is sitting at 66°F – that’s much warmer than usual for this time of year, which is a real bonus.
To be honest, the next week and a half is a bit of a write-off. We’ve got swell coming through, but the wind just won’t play ball. From Friday the 4th right through to the 11th, it’s mostly cross-off or cross, with the odd bit of onshore, and the surf quality is just poor. The waves are there, but they’re messy and blown out. There’s a little window on Monday morning, the 7th, where we get a 7ft SW groundswell with a long 13-second period, and the combined energy is pumping (1299). The wind is light cross-off, so it’s clean, but the call is only marginal – tide might be a problem. It’s the best of a bad bunch, but don’t get too excited.
Tuesday the 8th morning is another one to keep an eye on: a 8ft WSW swell with a fresh offshore wind from the WNW. That’s clean, but the period is only 8 seconds, so it’s not going to have the same punch. The energy is still strong (704). The problem is, those conditions are only for a few hours, and the afternoon gets messy again.
Honestly, the standout – and I mean the only real standout in this whole 16-day run – is Tuesday the 15th of September. That morning we’ve got a solid 8ft WSW swell, with a fresh offshore wind from the WNW. The combined energy is 836 – that’s strong. The wind is offshore, so it’s going to be clean. But look, 8ft is pushing into expert territory – it’s too big for beginners. The afternoon holds at 8ft with a fresh offshore from the WNW, that’s also clean and powerful. If you’re an experienced surfer, that Tuesday is your day. It’s a long way out, so don’t book the time off yet, but it’s the one to watch.
After that, the swell drops right off. From the 16th onwards, we’re looking at tiny waves, under 3ft, with poor quality. The 18th and 19th are glassy but flat.
So, to sum it up: a lot of frustrating near-misses, a few glimpses of hope on the 7th and 8th, but the real prize is that Tuesday the 15th. Keep your fingers crossed.
Rusty.
Short Range ForecastSome drizzle, heaviest during Fri morning. Warm (max 21°C on Sun afternoon, min 14°C on Fri night). Winds decreasing (fresh winds from the W on Fri morning, light winds from the WNW by Fri night). | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Wed afternoon. Very mild (max 18°C on Wed night, min 14°C on Mon night). Winds increasing (light winds from the W on Mon morning, strong winds from the SSW by Wed night). | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
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 8 | WSW 8 | WSW 7 | WSW 7 | WSW 10 | WSW 9 | SW 6 | SW 6 | WSW 8 | WSW 13 | WSW 12 | WSW 8 | WSW 8 | W 8 | W 8 | W 7 | WSW 7 | SW 6 | WSW 8 | WSW 8 | WSW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 614 | 460 | 245 | 118 | 163 | 94 | 52 | 83 | 188 | 1299 | 1159 | 962 | 704 | 601 | 475 | 282 | 161 | 388 | 666 | 606 | 523 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross-off | cross | cross-on | on | cross-on | cross | cross-off | cross | cross-off | off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | off |
High Tide | 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 | 5:34AM6.88m | 5:56PM7.44m | 6:21AM7.44m | 6:40PM7.96m | ||||||||
Low Tide | 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 | 11:52AM1.09m | 00:19AM0.65m | 12:36PM0.57m | 1:00AM0.22m | ||||||||
 |  |  | | |  | | | |  | |  |  | | | | |  | | | | |
 | 6:33 | — | — | 6:35 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — |
 | — | 7:59 | — | — | 7:57 | — | — | 7:54 | — | — | 7:52 | — | — | 7:50 | — | — | 7:47 | — | — | 7:45 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | 2 | 4 | — | — | — |
Temp °C | 16 | 17 | 16 | 16 | 16 | 16 | 18 | 21 | 18 | 17 | 17 | 15 | 15 | 16 | 15 | 16 | 17 | 18 | 19 | 18 | 15 |
Feels °C | 11 | 12 | 11 | 13 | 14 | 14 | 14 | 18 | 16 | 13 | 12 | 9 | 8 | 10 | 10 | 10 | 12 | 16 | 16 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | WSW 7 | WSW 7 | WSW 10 | WSW 9 | SW 6 | SW 13 | WSW 16 | WSW 13 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 21 | 20 | 245 | 118 | 163 | 94 | 52 | 6 | 26 | 1299 | — | — | — | — | — | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | SSW 14 | SSW 14 | SW 13 | SW 13 | WSW 9 | SW 13 | SW 12 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 20 | 19 | 7 | 7 | 16 | 6 | 6 | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | W 15 | SW 14 | W 14 | — | SW 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 5 | 7 | 4 | — | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 8 | WSW 8 | — | — | — | — | SE 3 | SW 6 | WSW 8 | — | WSW 12 | WSW 8 | WSW 8 | W 8 | W 8 | W 7 | WSW 7 | SW 6 | WSW 8 | WSW 8 | WSW 8 |
| kJ | 614 | 460 | — | — | — | — | 2 | 83 | 188 | — | 1159 | 962 | 704 | 601 | 475 | 282 | 161 | 388 | 666 | 606 | 523 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 156 | 369 | 0 | 30 | 111 | 28 | 76 | 171 | 127 | 230 | 148 | 5 | 369 | 369 | 369 | 272 | 383 | 230 | 5 | 129 | 0 |
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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