
Surf Forecasts:
Tenby (South Beach) surf forecast from 9 Sep 2026:
- Best quality surf: Friday 11 Sep, 4AM (local time) - 6ft (1.8m), 9s period, WSW swell with offshore winds.
- Most powerful swell: Thursday 10 Sep, 10PM (local time) - 7.5ft (2.3m), 9s period, WSW swell with 790 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 4AM (local time) - 6ft (1.8m), 9s 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 Friday (Sep 11) at 4AM. The primary swell is predicted to be 1.8m and 9s period. 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 2.3m 9s and forecast to arrive on Thursday (Sep 10) at 10PM. 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 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Fri 11th Sep) | 6ft (1.8m) 9s |
| Best Surf | 4AM (Fri 11th Sep) | 6ft (1.8m) 9s |
| Most Powerful | 10PM (Thu 10th Sep) | 7.5ft (2.3m) 9s |
Table - best surf conditions forecast for Tenby (South Beach) over the next 16 days.
The Lowdown
Alright, let’s get into it. The next couple of weeks look like a bit of a mixed bag around here, but there’s a few windows where you’ll want to have your wetsuit ready.
Right off the bat, Wednesday morning at Tenby (South Beach) is about as good as it gets in this stretch. We’ve got a clean 4ft swell pushing in from the WSW with a light offshore NW wind. It’s a bit small, but it’s got some punch for a beginner-friendly wave. The water is sitting at a warm 66°F, which is a couple of degrees above normal for this time of year – that’s a bonus. The energy is moderate, coming in at (202), which backs up the idea that there’s a bit of life in the water. Sure, it’s not a monster, but it’s your best chance for a proper surf this week. The crowd factor is only ‘sometimes,’ so you might get a few waves to yourself if you’re early.
Thursday is a write-off. The wind swings around to the SSW and picks up to 19 mph, blowing cross-onshore and making a mess of things. Friday morning looks salvageable again with a similar 5ft WSW swell and offshore NW winds. It’s clean, but very ordinary. The afternoon goes a bit cross-off, still rideable but nothing to get excited about.
Saturday brings some rain and a bit of a bump, but there’s a 7ft swell in the afternoon. That’s enough to get the heart rate up, but the accompanying cross-off wind and lumpy conditions will have it looking more like a wrestling match than a smooth ride. It might be one for the more experienced heads who don’t mind a bit of chaos.
Sunday settles down a touch, with a clean 5ft swell in the morning, but the winds are more cross-off than offshore. It’s okay, but not a standout.
And then… the taps basically turn off. From Monday the 14th onwards, we’re looking at a slow, steady decline. There’s some small stuff – knee to waist high – but the writing’s on the wall. There’s a few days with light winds and clean conditions, but the swell just isn’t there. The energy readings drop right off, getting into the weak category (anything from 40 to 130). It’s a real grovel fest.
There is one interesting note for the 20th – we get a glassy morning, but the swell is almost non-existent at 1ft. It’s flat out, not worth the paddle.
So, looking at the whole 16-day window, the standout is definitely Wednesday morning. If you can get out then, do it. There’s a promise of a bit more size on Saturday for the brave, but it’s not going to be pretty. For the rest, it’s a long stretch of small, weak, and mostly forgettable surf. It’s one of those periods where you just have to be patient and pick your moments. The good news is, it never stays flat forever – a change is always around the corner.
Rusty
Short Range ForecastLight rain (total 2mm), mostly falling on Thu afternoon. Very mild (max 17°C on Thu morning, min 13°C on Wed night). Winds increasing (light winds from the W on Wed night, fresh winds from the SSW by Thu morning). | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Sat morning. Warm (max 20°C on Mon morning, min 15°C on Sun night). Winds decreasing (fresh winds from the SW on Sat morning, light winds from the SSW by Sun night). | ||||||||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | |||||||||||||||
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 8 | SW 4 | SW 7 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 6 | WSW 7 | WSW 7 | WSW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | W 8 | WSW 6 | WSW 7 | WSW 9 |
Wave Graph | |||||||||||||||||||||
202 | 116 | 67 | 51 | 424 | 644 | 329 | 213 | 119 | 0 | 408 | 369 | 210 | 211 | 140 | 111 | 119 | 35 | 170 | 173 | 202 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-on | cross-on | cross | cross-off | off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross | cross | cross-off | cross-off | off |
High Tide | 5:56PM7.44m | 6:21AM7.44m | 6:40PM7.96m | 7:02AM7.85m | 7:20PM8.27m | 7:40AM8.07m | 7:57PM8.36m | 8:15AM8.10m | 8:32PM8.22m | 8:50AM7.93m | 9:07PM7.89m | 9:23AM7.60m | 9:40PM7.40m | ||||||||
Low Tide | 11:52AM1.09m | 00:19AM0.65m | 12:36PM0.57m | 1:00AM0.22m | 1:15PM0.21m | 1:37AM0.00m | 1:51PM0.05m | 2:11AM-0.01m | 2:25PM0.09m | 2:44AM0.17m | 2:57PM0.31m | 3:15AM0.52m | 3:30PM0.68m | 3:46AM0.98m | |||||||
6:41 | — | — | 6:43 | — | — | 6:46 | — | — | 6:47 | — | — | 6:48 | — | — | 6:50 | — | — | 6:52 | — | — | |
— | 7:47 | — | — | 7:45 | — | — | 7:44 | — | — | 7:40 | — | — | 7:38 | — | — | 7:37 | — | — | 7:34 | — | |
mm | — | — | — | — | 2 | — | — | — | — | 2 | 1 | 1 | — | — | — | — | — | — | 3 | — | — |
Temp °C | 15 | 15 | 15 | 17 | 17 | 17 | 17 | 17 | 16 | 17 | 17 | 18 | 18 | 18 | 17 | 20 | 20 | 18 | 17 | 18 | 17 |
Feels °C | 12 | 12 | 11 | 11 | 14 | 14 | 15 | 14 | 11 | 13 | 14 | 16 | 16 | 16 | 17 | 19 | 19 | 17 | 15 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | WSW 8 | WSW 8 | WSW 8 | W 12 | W 11 | — | WSW 9 | WSW 9 | WSW 8 | — | W 15 | — | WSW 8 | WSW 9 | WSW 9 | WSW 9 | SW 12 | W 8 | W 11 | WSW 7 | WSW 9 |
202 | 116 | 67 | 3 | 9 | — | 329 | 213 | 119 | — | 4 | — | 210 | 211 | 140 | 111 | 6 | 35 | 2 | 173 | 202 | |
Swell 2 Height (m) Direction Period (s) | — | — | W 13 | W 12 | — | — | — | — | — | — | — | — | SW 13 | SW 13 | S 13 | SW 12 | SW 12 | SW 12 | W 11 | W 13 | — |
— | — | 3 | 3 | — | — | — | — | — | — | — | — | 7 | 7 | 3 | 6 | 6 | 6 | 10 | 4 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 13 | — | W 13 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | 3 | — | |
Wind waves Height (m) Direction Period (s) | NNW 5 | — | — | SW 4 | SW 7 | WSW 9 | — | — | — | WSW 6 | WSW 7 | WSW 7 | NNW 3 | NNW 3 | — | — | WSW 9 | SW 5 | WSW 6 | — | — |
15 | — | — | 51 | 424 | 644 | — | — | — | 171 | 408 | 369 | 1 | 2 | — | — | 119 | 47 | 170 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 30 | 26 | 317 | 322 | 5 | 0 | 17 | 120 | 141 | 267 | 339 | 147 | 375 | 30 | 28 | 127 | 100 | 46 | 17 | 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.










