Surf Forecasts:
Tenby (South Beach) surf forecast from 15 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 10PM (local time) - 4.5ft (1.4m), 7s period, WSW swell with offshore winds.
- Most powerful swell: Wednesday 16 Sep, 7AM (local time) - 5.5ft (1.7m), 10s period, W swell with 544 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 10PM (local time) - 4.5ft (1.4m), 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 Tuesday (Sep 15) at 10PM. The primary swell is predicted to be 1.4m and 7s 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 1.7m 10s and forecast to arrive on Wednesday (Sep 16) 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 1.6m 6s period and expected on Friday (Sep 18) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Tue 15th Sep) | 4.5ft (1.4m) 7s |
| Best Surf | 10PM (Tue 15th Sep) | 4.5ft (1.4m) 7s |
| Most Powerful | 7AM (Wed 16th Sep) | 5.5ft (1.7m) 10s |
Table - best surf conditions forecast for Tenby (South Beach) over the next 16 days.
The Lowdown
Right then, let’s have a look at what’s coming down the line. To be straight with you, it’s a proper quiet spell ahead for Tenby (South Beach). The whole sixteen-day window’s looking pretty poor, with no real standout sessions to get excited about. For the first week, you’re looking at a lot of messy, onshore junk. It’s tough out there.
Let’s start with the early days. Tuesday the 15th and Wednesday the 16th are a write-off – poor surf conditions with a moderate breeze and a weak, short-period swell. We’re seeing combined swell energy in the low to mid hundreds (280, then 394), which is moderate at best, but the period’s too short for any real shape. The wind’s mostly offshore or cross-offshore, keeping things clean-ish, but the swell isn’t doing us any favours. The water temp is about average for the time of year, nothing unusual there.
Thursday the 17th bumps up a bit, with a 6.6ft swell from the west, but that 7-second period makes it a fat, crumbly mess. It’s pushing the limit for beginners at that size, but the quality is poor. The combined energy hits 435 (moderate), but it’s just not coming together. The rest of that week and into the next is similar – a mix of moderate breezes, cross-offshore winds, and weak, short-period swell.
There’s a couple of days, Monday the 21st and Tuesday the 22nd of September, where the wind goes glassy. You’ll see a tiny 2.6ft to 3.3ft swell, but it’s so weak (energy at 73 and 195) that it’s barely surfable. The swell direction is from the west-southwest, which is okay for this sheltered spot, but there’s just no push. After that, it’s back to weak, onshore dribble for the rest of the month.
Honestly, if you’re desperate for a paddle, Tuesday the 22nd afternoon might be your best shot, with a glassy surface and a 3.3ft swell, but even that’s called “very ordinary.” For a spot that’s fairly consistent, this is a proper flat and grotty run. Forecasts can change, but right now, it’s not looking good for the surfing.
Short Range ForecastLight rain (total 6mm), mostly falling on Mon night. Very mild (max 18°C on Mon night, min 13°C on Tue night). Mainly fresh winds. | Days 4-6 Weather SummarySome drizzle, heaviest during Fri afternoon. Very mild (max 18°C on Sat afternoon, min 13°C on Thu night). Winds decreasing (fresh winds from the WSW on Fri night, calm by Sat night). | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
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) | W 7 | W 7 | W 8 | WSW 10 | W 10 | W 6 | W 7 | W 7 | W 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 278 | 240 | 295 | 394 | 347 | 0 | 435 | 348 | 285 | 191 | 188 | 362 | 303 | 273 | 237 | 168 | 172 | 93 | 62 | 41 | 72 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | off | cross-off | cross-off | off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-off | glassy |
High Tide | 9:23AM7.60m | 9:40PM7.40m | 9:56AM7.13m | 10:15PM6.83m | 10:31AM6.58m | 10:52PM6.21m | 11:11AM6.00m | 11:37PM5.61m | 12:05PM5.46m | 00:45AM5.12m | 1:31PM5.11m | 2:29AM4.97m | 3:17PM5.23m | 4:00AM5.29m | |||||||
Low Tide | 3:30PM0.68m | 3:46AM0.98m | 4:02PM1.17m | 4:18AM1.52m | 4:37PM1.74m | 4:54AM2.09m | 5:20PM2.32m | 5:42AM2.65m | 6:23PM2.84m | 7:03AM3.06m | 8:11PM3.08m | 9:00AM3.06m | 9:53PM2.80m | ||||||||
 | |  |  | |  | |  | | |  |  | | | | | |  | | | | |
 | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — |
 | — | 7:34 | — | — | 7:31 | — | — | 7:30 | — | — | 7:27 | — | — | 7:24 | — | — | 7:22 | — | — | 7:20 | — |
mm | — | — | — | — | — | 3 | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 16 | 15 | 15 | 16 | 15 | 15 | 14 | 16 | 15 | 16 | 17 | 18 | 17 | 18 | 18 | 18 | 18 | 19 | 18 |
Feels °C | 10 | 11 | 13 | 10 | 10 | 12 | 9 | 9 | 9 | 11 | 10 | 11 | 14 | 15 | 16 | 16 | 17 | 19 | 18 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | W 11 | — | W 8 | WSW 10 | — | — | — | — | W 7 | S 12 | S 12 | SW 16 | SW 16 | SW 16 | W 10 | SW 14 | SW 14 | WSW 7 | WSW 7 | WSW 7 | WSW 10 |
| kJ | 2 | — | 295 | 394 | — | — | — | — | 285 | 3 | 3 | 10 | 10 | 10 | 8 | 8 | 8 | 93 | 62 | 41 | 72 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | S 12 | W 14 | W 13 | — | — | W 14 | SW 13 | SW 13 | SW 13 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 4 | 3 | — | — | 4 | 7 | 7 | 7 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | S 12 | SW 14 | — | — | SW 14 | W 14 | W 14 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 8 | — | — | 7 | 4 | 4 | — |
Wind waves Height (m) Direction Period (s) | W 7 | W 7 | NW 3 | NW 5 | W 10 | W 6 | W 7 | W 7 | — | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | — | — | — | — |
| kJ | 278 | 240 | 6 | 23 | 347 | 149 | 435 | 348 | — | 191 | 188 | 362 | 303 | 273 | 237 | 168 | 172 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 369 | 369 | 0 | 40 | 226 | 384 | 430 | 369 | 0 | 148 | 339 | 339 | 364 | 129 | 126 | 17 | 17 | 26 | 8 | 119 | 8 |
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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