Surf Forecasts:
Tenby (South Beach) surf forecast from 31 Aug 2026:
- Best quality surf: Monday 31 Aug, 4PM (local time) - 7ft (2.1m), 10s period, WSW swell with offshore winds.
- Most powerful swell: Monday 31 Aug, 7AM (local time) - 8ft (2.4m), 9s period, WSW swell with 959 kJ wave energy.
- Next surfable swell (1★+): Monday 31 Aug, 4PM (local time) - 7ft (2.1m), 10s 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 Monday (Aug 31) at 4PM. The primary swell is predicted to be 2.1m and 10s 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 2.4m 9s and forecast to arrive on Monday (Aug 31) 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 5s period and expected on Wednesday (Sep 02) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Mon 31st Aug) | 7ft (2.1m) 10s |
| Best Surf | 4PM (Mon 31st Aug) | 7ft (2.1m) 10s |
| Most Powerful | 7AM (Mon 31st Aug) | 8ft (2.4m) 9s |
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 on the cards for the next couple of weeks. It’s a bit of a slow start, honestly. The first real surf we’ve got lined up is on Monday the 31st of August down at Tenby (South Beach). That morning we’ll see a 7ft swell from the WSW, with a period of 10 seconds. The combined energy is sitting at 821, so there’s a decent amount of power on offer. It’ll be a clean one, too, with a fresh offshore wind from the NW tidying it all up. It’s a beginner-friendly spot, fairly consistent, but it does get crowded sometimes. That early session on the Monday is the standout of the whole window, no doubt about it.
Monday afternoon the swell drops a touch to 7ft, but the wind swings a little more to the WNW, still offshore and clean. Tuesday the 1st of September the swell drops right off to under 3ft, and the wind goes cross-off, and the scores drop right off – nothing doing there. Wednesday the 2nd, the wind goes cross or cross-off with 7ft of messy, short-period swell, and the forecast flags it as poor all day. Thursday and Friday both have some size, around 5ft to 6ft, but the winds are a bit too strong and cross-off to get excited about.
The weekend of the 5th and 6th September is tiny, and it’s onshore on the Sunday. The following week, from Monday the 7th of September onward, there’s a weird mix: a long-period 15-second groundswell on the Monday morning, but it’s only 1ft and cross-shore – a real washout. Tuesday the 8th of September shows a bit of a bump, with a 7ft, 9-second swell, but the wind is cross and the day is marked as marginal. Wednesday the 9th has a small 4ft clean-ish window with a moderate offshore, but the conditions are talked down.
After that, from the 10th of September right through to the 15th of September, it’s all below 3ft, with onshore or cross-onshore winds from the ESE. The surf is tiny and blown out. The water temperature is about average for the time of year, nothing wild to report.
So, to be honest, your only real window is that Monday morning, the 31st of August. If you can get out then, go for it. Otherwise, it’s a long dry spell of two weeks with next to nothing worth paddling out for.
Rusty.
Short Range ForecastModerate rain (total 14mm), heaviest on Sun night. Very mild (max 19°C on Wed morning, min 15°C on Sun night). Winds increasing (light winds from the W on Mon night, fresh winds from the SSW by Wed morning). | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Thu night. Warm (max 20°C on Thu afternoon, min 13°C on Fri night). Winds decreasing (strong winds from the SW on Thu night, light winds from the W by Sat afternoon). | ||||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | |||||||||||||||
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 10 | WSW 10 | WSW 10 | WSW 9 | WSW 8 | W 8 | WSW 7 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | W 7 | W 7 | WSW 6 | WSW 7 | WSW 9 | WSW 9 | WSW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 821 | 768 | 334 | 137 | 136 | 11 | 372 | 400 | 439 | 348 | 291 | 237 | 254 | 342 | 311 | 148 | 68 | 41 | 64 | 52 | 32 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | glassy | cross-on | cross-on | cross-on |
High Tide | 8:53AM7.86m | 9:10PM8.01m | 9:28AM7.74m | 9:47PM7.76m | 10:06AM7.45m | 10:27PM7.34m | 10:49AM7.01m | 11:14PM6.79m | 11:41AM6.49m | 00:15AM6.20m | 12:51PM6.01m | 1:38AM5.79m | 2:24PM5.84m | 3:16AM5.82m | |||||||
Low Tide | 2:59PM0.32m | 3:19AM0.36m | 3:33PM0.49m | 3:54AM0.64m | 4:11PM0.82m | 4:33AM1.07m | 4:54PM1.29m | 5:21AM1.60m | 5:51PM1.83m | 6:26AM2.15m | 7:13PM2.28m | 8:02AM2.45m | 9:02PM2.30m | ||||||||
 | |  |  | |  |  | | | | | | |  |  | | | | | | | |
 | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:37 | — | — |
 | — | 8:07 | — | — | 8:06 | — | — | 8:04 | — | — | 8:01 | — | — | 7:59 | — | — | 7:57 | — | — | 7:54 | — |
mm | — | — | — | — | — | 2 | 4 | — | — | — | — | 5 | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 16 | 16 | 17 | 18 | 17 | 19 | 19 | 18 | 19 | 20 | 19 | 16 | 17 | 15 | 16 | 16 | 14 | 15 | 17 | 17 |
Feels °C | 10 | 11 | 12 | 14 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 14 | 10 | 10 | 9 | 13 | 12 | 14 | 12 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | WSW 10 | WSW 10 | — | S 18 | SW 18 | W 8 | — | SW 16 | SW 15 | SSW 15 | SW 15 | W 8 | SSW 14 | SSW 14 | SW 14 | W 7 | WSW 10 | WSW 7 | WSW 9 | WSW 9 | WSW 6 |
| kJ | 821 | 768 | — | 6 | 12 | 11 | — | 10 | 9 | 21 | 37 | 71 | 20 | 20 | 8 | 148 | 33 | 41 | 64 | 52 | 32 |
Swell 2 Height (m) Direction Period (s) | — | — | — | W 18 | — | SW 16 | — | — | — | — | — | SW 15 | — | — | — | WSW 11 | SW 13 | WSW 10 | SW 13 | SW 13 | SSW 5 |
| kJ | — | — | — | 6 | — | 10 | — | — | — | — | — | 36 | — | — | — | 23 | 7 | 18 | 7 | 6 | 8 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 14 | W 15 | SW 13 | — | — | SW 16 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 7 | 4 | 7 | — | — | 11 |
Wind waves Height (m) Direction Period (s) | NW 5 | NNW 5 | WSW 10 | WSW 9 | WSW 8 | SW 5 | WSW 7 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | W 7 | — | WSW 6 | — | SSE 2 | — | ESE 3 |
| kJ | 33 | 19 | 334 | 137 | 136 | 51 | 372 | 400 | 439 | 348 | 291 | 237 | 254 | 342 | 311 | — | 68 | — | 1 | — | 4 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 369 | 0 | 80 | 111 | 317 | 103 | 390 | 339 | 171 | 127 | 339 | 369 | 339 | 339 | 174 | 147 | 17 | 8 | 29 | 35 | 122 |
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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