- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Porth Nobla surfForecast / Wales – Anglesy / UK
12 Day Weather and Surf, issued 6 am Sunday 14 Sep 2025 BST
Best Forecast Surf Conditions for Porth Nobla this week:
The most powerful waves expected at Porth Nobla in the next 12 days are 4.5m 9s and forecast to arrive on Monday (Sep 15) at 10AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 6s period and expected on Tuesday (Sep 16) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Mon 15th Sep) | 15ft (4.5m) 9s |
Table - best surf conditions forecast for Porth Nobla over the next 12 days.
Short Range Forecast Heavy rain (total 33mm), heaviest during Tue night. Very mild (max 16°C on Sun afternoon, min 13°C on Sun morning). Winds decreasing (near gales from the WSW on Mon morning, light winds from the WSW by Tue night). | Days 3-6 Weather Summary Light rain (total 3mm), mostly falling on Wed morning. Very mild (max 18°C on Fri night, min 13°C on Fri morning). Winds decreasing (strong winds from the SW on Wed morning, light winds from the WSW by Fri morning). | ||||||||||||||||||||
Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 5 | 7 | 8 | 9 | 7 | 7 | 6 | 6 | 6 | 7 | 8 | 6 | 8 | 7 | 7 | 6 | 7 | 7 | 6 | 6 | 5 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 66 | 460 | 1135 | 3286 | 1131 | 725 | 332 | 126 | 112 | 800 | 746 | 261 | 515 | 509 | 432 | 60 | 47 | 21 | 12 | 13 | 55 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | on | on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | on | on | on | cross- on | on | cross | cross- off | cross- on | cross- on |
High Tide / height (m) | 2:38PM 3.35 | 3:24AM 3.17 | 4:01PM 3.11 | 5:15AM 2.95 | 5:51PM 3.10 | 7:04AM 3.04 | 7:18PM 3.33 | 8:09AM 3.25 | 8:14PM 3.62 | 8:51AM 3.46 | 8:54PM 3.88 | 9:23AM 3.65 | 9:29PM 4.09 | ||||||||
Low Tide / height (m) | 9:52PM 0.94 | 10:32AM 1.24 | 11:20PM 1.09 | 12:02PM 1.31 | 12:51AM 0.98 | 1:23PM 1.13 | 2:02AM 0.70 | 2:22PM 0.85 | 2:54AM 0.40 | 3:09PM 0.58 | 3:37AM 0.16 | 3:49PM 0.37 | |||||||||
Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | |||||||||||||||
| Sunrise | 6:48 | - | - | 6:50 | - | - | 6:52 | - | - | 6:54 | - | - | 6:54 | - | - | 6:56 | - | - | 6:58 | - | - |
| Sunset | - | 7:37 | - | - | 7:35 | - | - | 7:31 | - | - | 7:30 | - | - | 7:27 | - | - | 7:24 | - | - | 7:22 | - |
 |  |  | | |  |  |  |  | | |  | | | | |  | | | |  | |
Rain (mm) | 3 | 6 | 4 | 2 | 3 | - | - | - | 15 | 3 | - | - | - | - | - | - | - | - | - | - | 2 |
| Temp. °C | 14 | 16 | 15 | 14 | 14 | 14 | 14 | 16 | 15 | 17 | 16 | 15 | 15 | 15 | 16 | 14 | 14 | 18 | 20 | 18 | 17 |
| Feels °C (?) | 8 | 8 | 7 | 4 | 4 | 4 | 7 | 12 | 12 | 11 | 8 | 8 | 9 | 8 | 11 | 13 | 13 | 17 | 19 | 15 | 12 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Wales - Anglesy
Wind reports 2 km away suggest it is still onshore at Porth Nobla (moderate winds from the SSW at Valley RAF Airport). 0.7m 7s swell from the SW with a 0.3m 4s local chop from the NW and a 0.3m 4s local chop from the SW. 3 swells combining to make bigger set waves.
1 h 43 min ago
FREE! Surf-Forecast.com widget for your website
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 12 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.
Nearest