Surf Forecasts:
Tenby (South Beach) surf forecast from 3 Sep 2026:
- Best quality surf: Monday 7 Sep, 10AM (local time) - 7ft (2.1m), 12s period, WSW swell with offshore winds.
- Most powerful swell: Tuesday 8 Sep, 1AM (local time) - 10ft (3.0m), 9s period, WSW swell with 1,321 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 1AM (local time) - 4.5ft (1.3m), 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 1.3m and 7s period with a secondary swell of 0.7m and 8s. 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 3.0m 9s and forecast to arrive on Tuesday (Sep 08) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.4m 8s period and expected on Tuesday (Sep 08) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sat 5th Sep) | 4.5ft (1.3m) 7s |
| Best Surf | 10AM (Mon 7th Sep) | 7ft (2.1m) 12s |
| Most Powerful | 1AM (Tue 8th Sep) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Tenby (South Beach) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s cooking for Tenby (South Beach) over the next couple of weeks.
Right off the bat, I gotta be straight with you – the first few days are a real write-off. We’ve got a bit of swell around, but the wind is just mucking it up from the 3rd through to the 6th, giving us poor surf conditions. The water is sitting at 66°F and that’s a whopping 5°F warmer than usual, so it’s much warmer than normal for this time of year, which is a nice little bonus if you’re keen for a paddle, but the waves themselves are a no-go.
Then, Monday the 7th of September. That’s the one. Monday morning is the real standout. The wind finally swings offshore from the WNW, and we’ve got a clean 7ft swell rolling in from the WSW with a solid 12-second period. The combined energy hits 1240, so that’s some serious juice in the water. This is a proper groundswell. With that long period, it’s gonna be a bit more lined up and powerful, and the offshore wind will keep it clean. This is the best on offer without a doubt. The afternoon drops off a bit, but that morning session is where it’s at.
Tuesday the 8th still has a bit of size – 8ft from the W in the morning with a fresh offshore – but the period drops to 9 seconds, so it’s not as clean as the day before. It’s a decent option for the more experienced crew, but it’s not the same quality as Monday. The afternoon gets a bit messy again.
From Wednesday the 9th onwards, we’re looking at a real drop-off. The swell fades away and the conditions get patchy. There’s a bit of a long-period groundswell showing up on the 15th of September, with a 17-second period and a glassy afternoon, but the size is only 2ft, so it’s more of a longboard cruiser than anything exciting. The rest of that second week is mostly flat, with small, weak, and messy waves. The combined energy drops right down to double digits, so don’t get your hopes up.
So, to sum it up: Monday the 7th is your day. Set the alarm. The rest of the window is a bit of a struggle, with a long, flat run from the 9th onward. The forecast can change, but right now, it’s a one-hit wonder.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Thu morning, min 13°C on Fri night). Winds decreasing (strong winds from the SW on Thu night, light winds from the W by Sat morning). | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Mon night. Warm (max 21°C on Sun afternoon, min 12°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | |||||||||||||||
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 6 | WSW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 10 | WSW 9 | WSW 6 | SSW 6 | WSW 8 | WSW 12 | WSW 12 | WSW 9 | W 9 | W 8 | W 8 | W 8 | WSW 8 | WSW 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 296 | 270 | 399 | 561 | 416 | 161 | 128 | 163 | 86 | 30 | 40 | 147 | 1240 | 1012 | 1321 | 965 | 743 | 358 | 127 | 75 | 0 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross-off | cross-off | off | cross-off | cross | on | on | cross-on | cross | off | cross-off | cross-off | off | cross-off | off | off | cross-off | on |
High Tide | 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 | 5:34AM6.88m | 5:56PM7.44m | ||||||||
Low Tide | 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 | 11:52AM1.09m | 00:19AM0.65m | ||||||||
 | |  |  | |  |  | |  | | | | | |  | |  | | | |  | |
 | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — |
 | — | 8:01 | — | — | 7:59 | — | — | 7:57 | — | — | 7:54 | — | — | 7:52 | — | — | 7:50 | — | — | 7:47 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | — | 1 | — | — | — | 3 |
Temp °C | 19 | 18 | 19 | 16 | 17 | 16 | 15 | 16 | 15 | 20 | 21 | 17 | 16 | 17 | 16 | 15 | 15 | 14 | 15 | 15 | 14 |
Feels °C | 16 | 14 | 13 | 11 | 11 | 12 | 15 | 14 | 14 | 16 | 17 | 16 | 12 | 13 | 12 | 8 | 9 | 10 | 11 | 10 | 13 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SW 15 | — | SSW 14 | SSW 14 | WSW 7 | WSW 7 | WSW 10 | WSW 9 | WSW 6 | W 7 | WSW 16 | WSW 12 | WSW 12 | — | — | — | W 8 | W 8 | S 10 | — |
| kJ | 21 | 37 | — | 21 | 20 | 161 | 128 | 163 | 86 | 30 | 39 | 24 | 1240 | 1012 | — | — | — | 358 | 127 | 2 | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | WSW 8 | SW 14 | SW 13 | SW 13 | WSW 9 | ESE 4 | SW 12 | — | — | — | — | — | — | S 10 | — | — |
| kJ | — | — | — | — | — | 75 | 7 | 7 | 7 | 16 | 5 | 6 | — | — | — | — | — | — | 2 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SSW 14 | — | W 14 | — | SW 13 | SW 13 | SW 12 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 20 | — | 4 | — | 7 | 6 | 6 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 8 | WSW 8 | WSW 6 | WSW 8 | WSW 8 | — | — | — | — | SE 4 | SSW 6 | WSW 8 | — | — | WSW 9 | W 9 | W 8 | — | NNW 5 | WSW 8 | WSW 4 |
| kJ | 296 | 270 | 399 | 561 | 416 | — | — | — | — | 15 | 40 | 147 | — | — | 1321 | 965 | 743 | — | 13 | 75 | 28 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 127 | 364 | 128 | 156 | 368 | 0 | 26 | 127 | 8 | 67 | 285 | 120 | 0 | 151 | 148 | 174 | 369 | 0 | 181 | 151 | 60 |
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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