Surf Forecasts:
Tenby (South Beach) surf forecast from 4 Aug 2026:
- Most powerful swell: Wednesday 5 Aug, 10AM (local time) - 6ft (1.8m), 7s period, WSW swell with 340 kJ wave energy.
Best Forecast Surf Conditions for Tenby (South Beach) this week:
The most powerful waves expected at Tenby (South Beach) in the next 16 days are 1.8m 7s and forecast to arrive on Wednesday (Aug 05) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 6s period and expected on Thursday (Aug 06) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Wed 5th Aug) | 6ft (1.8m) 7s |
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 brewing for the next couple of weeks.
Well, I’ll be honest with you, it’s a bit of a tough stretch ahead. We’re looking at a long, quiet period with no real surf to get excited about. The forecast is showing a whole lot of nothing for the first week or so, with poor surf conditions across the board. The first few days of August are a write-off with small, weak swell and messy winds. There’s a bit of a pulse of energy on the 5th, with a 6ft swell from the WSW, but a strong cross-offshore wind keeps it from being any good. The combined energy hits 347 (moderate) on the Wednesday morning, but it’s still a no-go. The swell then drops right off into the weekend. From the 7th through to the 12th, we’re looking at tiny, inconsistent waves, mostly under 3ft, and with periods that are either too short or too long. It’s a real barren spell.
Now, there’s a glimmer of hope towards the end of the second week. On the 13th of August, we see a bit more life with a 3ft swell from the WSW, and the wave energy is in the moderate range (137). It’s still not a stand-out, but it’s the best we’ve got. The wind is cross-offshore, so it’ll be clean, but it’s small. Then, on the 18th of August, things get a bit more interesting. The afternoon shows a 6ft swell from the WSW, with a combined energy of 313 (moderate). The wind is a strong cross-offshore, so it’ll be textured but rideable. This is the biggest swell of the whole forecast, but it’s still a long way out, so don’t bank on it.
Honestly, for a spot like Tenby (South Beach), which is a sheltered beginner-friendly beach break, this kind of blank run is a bit of a bummer. The water temp is about average for the time of year, so at least you won’t freeze when you’re sitting there waiting for a wave that never comes. If you’re desperate, keep an eye on that 18th, but for now, I’d say the kites are going to have a better time of it than the paddle crew.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Mon night. Warm (max 20°C on Tue morning, min 13°C on Wed night). Winds increasing (calm on Mon night, fresh winds from the W by Wed afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Sun afternoon, min 14°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 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) | SW 7 | SW 6 | SW 6 | WSW 7 | WSW 7 | WSW 7 | W 6 | W 10 | W 10 | W 5 | W 9 | W 9 | W 9 | W 9 | WSW 8 | WSW 7 | WSW 7 | W 6 | WSW 6 | WSW 5 | WSW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 203 | 166 | 167 | 340 | 247 | 212 | 112 | 8 | 7 | 12 | 8 | 6 | 7 | 7 | 11 | 79 | 48 | 28 | 12 | 9 | 7 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | glassy | cross-off | cross-off | cross-on | cross-off | off | glassy | cross-off | cross-off | off | off | cross-off |
High Tide | 10:34AM7.12m | 10:54PM7.19m | 11:17AM6.83m | 11:40PM6.81m | 12:08PM6.47m | 00:38AM6.40m | 1:13PM6.15m | 1:52AM6.08m | 2:34PM6.03m | 3:18AM6.07m | 3:58PM6.26m | 4:37AM6.40m | 5:09PM6.79m | ||||||||
Low Tide | 4:23AM0.91m | 4:38PM1.08m | 5:03AM1.19m | 5:21PM1.40m | 5:50AM1.55m | 6:15PM1.77m | 6:51AM1.93m | 7:27PM2.08m | 8:12AM2.17m | 8:59PM2.14m | 9:43AM2.07m | 10:27PM1.82m | 11:00AM1.65m | 11:36PM1.27m | |||||||
 |  |  |  | |  | | | | | | | | | | | | | | | | |
 | 5:45 | — | — | 5:47 | — | — | 5:48 | — | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — | 5:54 | — | — |
 | — | — | 9:02 | — | — | 9:00 | — | 8:59 | — | — | 8:58 | — | — | 8:55 | — | — | 8:53 | — | — | 8:52 | — |
mm | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 17 | 16 | 18 | 17 | 16 | 17 | 16 | 18 | 18 | 15 | 17 | 19 | 16 | 20 | 22 | 17 | 22 | 22 | 18 |
Feels °C | 17 | 17 | 15 | 10 | 11 | 12 | 11 | 12 | 14 | 15 | 14 | 14 | 14 | 16 | 15 | 18 | 19 | 15 | 21 | 20 | 16 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | S 14 | SW 13 | SW 13 | SW 13 | W 10 | W 10 | W 10 | W 5 | W 9 | W 9 | W 9 | W 9 | WSW 8 | WSW 7 | WSW 7 | W 6 | WSW 6 | WSW 5 | WSW 7 |
| kJ | 8 | 8 | 4 | 7 | 7 | 7 | 8 | 8 | 7 | 12 | 6 | 6 | 6 | 6 | 11 | 79 | 48 | 28 | 12 | 9 | 4 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | SW 13 | SW 13 | SW 12 | SW 12 | W 9 | SW 12 | SW 12 | SW 13 | SW 13 | SW 11 | SW 12 | SW 12 | W 8 | W 8 | WSW 7 | W 5 |
| kJ | — | — | — | — | — | 7 | 6 | 6 | 6 | 7 | 6 | 5 | 7 | 7 | 5 | 6 | 6 | 1 | 1 | 5 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | S 16 | — | SW 12 | SW 14 | SW 6 | S 11 | S 11 | — | — | — | S 12 | S 12 | S 13 | SW 13 |
| kJ | — | — | — | — | — | — | — | 5 | — | 6 | 8 | 1 | 2 | 2 | — | — | — | 3 | 3 | 3 | 7 |
Wind waves Height (m) Direction Period (s) | SW 7 | SW 6 | SW 6 | WSW 7 | WSW 7 | WSW 7 | W 6 | W 6 | WSW 5 | — | WSW 5 | WSW 4 | W 5 | WSW 4 | W 6 | — | — | — | NW 5 | NW 3 | — |
| kJ | 203 | 166 | 167 | 340 | 247 | 212 | 112 | 50 | 20 | — | 13 | 5 | 11 | 19 | 52 | — | — | — | 13 | 4 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 384 | 339 | 267 | 369 | 339 | 368 | 375 | 129 | 181 | 373 | 364 | 348 | 180 | 181 | 28 | 8 | 181 | 346 | 346 | 377 | 346 |
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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