Surf Forecasts:
Porth Nobla surf forecast from 5 Aug 2026:
- Most powerful swell: Thursday 6 Aug, 4AM (local time) - 4.5ft (1.3m), 5s period, NW swell with 96 kJ wave energy.
Best Forecast Surf Conditions for Porth Nobla this week:
The most powerful waves expected at Porth Nobla in the next 16 days are 1.3m 5s and forecast to arrive on Thursday (Aug 06) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Thursday (Aug 06) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Thu 6th Aug) | 4.5ft (1.3m) 5s |
Table - best surf conditions forecast for Porth Nobla over the next 16 days.
Short Range ForecastLight rain (total 3mm), mostly falling on Wed afternoon. Very mild (max 17°C on Sat morning, min 13°C on Wed night). Winds decreasing (fresh winds from the WNW on Wed night, calm by Thu night). | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Mon afternoon, min 16°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Wed 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | ||||||||||||||
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 5 | NW 5 | SW 6 | SW 6 | SW 4 | SW 4 | S 12 | SW 5 | SSW 4 | SSW 4 | SW 5 | SSW 4 | SW 6 | SW 6 | SW 6 | NW 3 | S 11 | S 11 | SW 6 | S 11 |
Wave Graph  | ||||||||||||||||||||
 kJ | 117 | 73 | 13 | 9 | 14 | 6 | 3 | 23 | 17 | 42 | 25 | 10 | 7 | 6 | 5 | 3 | 2 | 2 | 1 | 2 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | on | cross | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | glassy | cross-on | cross-off | off | cross-on | cross-on | cross-on |
High Tide | 2:39AM3.55m | 3:15PM3.22m | 3:44AM3.33m | 4:28PM3.12m | 5:06AM3.20m | 5:53PM3.16m | 6:34AM3.25m | 7:10PM3.38m | 7:48AM3.43m | 8:14PM3.71m | 8:49AM3.66m | 9:07PM4.05m | ||||||||
Low Tide | 9:10PM0.99m | 9:47AM0.92m | 10:11PM1.16m | 10:55AM1.10m | 11:32PM1.22m | 12:19PM1.13m | 1:01AM1.07m | 1:38PM0.97m | 2:14AM0.73m | 2:42PM0.68m | 3:13AM0.33m | 3:34PM0.38m | ||||||||
 |  |  |  |  | | |  | | | | | | | | | | | | | |
 | — | — | 5:41 | — | — | 5:43 | — | — | 5:45 | — | — | 5:47 | — | — | 5:48 | — | — | 5:50 | — | — |
 | — | 9:06 | — | — | 9:04 | — | — | 9:01 | — | — | 9:00 | — | 8:59 | — | — | 8:57 | — | — | 8:54 | — |
mm | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 15 | 14 | 15 | 16 | 16 | 16 | 15 | 17 | 18 | 17 | 18 | 19 | 19 | 19 | 21 | 18 | 21 | 22 | 19 |
Feels °C | 10 | 10 | 10 | 12 | 14 | 14 | 13 | 11 | 13 | 13 | 13 | 16 | 18 | 19 | 17 | 18 | 15 | 19 | 20 | 17 |
Swell 1 Height (m) Direction Period (s) | S 13 | SW 6 | SW 6 | N 5 | SW 4 | SW 4 | — | SW 12 | SW 11 | — | SW 7 | SW 7 | SW 4 | SW 6 | SW 6 | NW 3 | SW 6 | N 4 | NE 4 | — |
| kJ | 3 | 28 | 13 | 12 | 14 | 4 | — | 5 | 5 | — | 2 | 7 | 3 | 6 | 5 | 3 | 1 | 1 | 1 | — |
Swell 2 Height (m) Direction Period (s) | — | SW 13 | S 13 | WNW 4 | N 4 | WNW 3 | S 12 | — | — | SW 11 | S 11 | S 12 | SW 6 | SW 12 | — | SSW 6 | S 11 | SW 6 | — | SW 6 |
| kJ | — | 7 | 3 | 3 | 2 | 1 | 3 | — | — | 5 | 2 | 3 | 7 | 6 | — | 3 | 2 | 1 | — | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | S 12 | SW 12 | SW 12 | S 6 | — | — | — | — | — | SW 12 | — | — | — | — | S 11 | SW 6 | S 11 |
| kJ | — | — | — | 3 | 6 | 6 | 1 | — | — | — | — | — | 6 | — | — | — | — | 2 | 1 | 2 |
Wind waves Height (m) Direction Period (s) | WSW 5 | NW 5 | NW 5 | SW 6 | — | SW 4 | SSW 4 | SW 5 | SSW 4 | SSW 4 | SW 5 | SSW 4 | — | — | NW 3 | NW 3 | N 4 | — | — | — |
| kJ | 117 | 73 | 60 | 9 | — | 6 | 3 | 23 | 17 | 42 | 25 | 10 | — | — | 3 | 2 | 5 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 465 | 331 | 271 | 283 | 271 | 277 | 259 | 254 | 254 | 259 | 159 | 259 | 242 | 254 | 254 | 293 | 257 | 294 | 305 | 180 |
Best forecast wave conditions in Anglesy | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Porth Nobla surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Porth Nobla Surf forecast
The above surf forecast table for Porth Nobla provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Porth Nobla can be found by selecting the local surf guide option on the grey menu. Our Porth Nobla 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 (Porth Nobla) 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 Porth Nobla 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 Anglesy? If you are looking for accommodation near Porth Nobla, camping, hotels and holiday cottages in Anglesy, consider staying in Anglesey which is 2 km (1 miles) away. Other places in and around Anglesy where you can find information about places to rent, and car hire include Holyhead which is 12 km (7 miles) away, Bangor, Porthmadog and Llandudno.
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