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Porth Colmon surfForecast / Wales – Lleyn / UK
12 Day Weather and Surf, issued 6 pm Monday 31 Mar 2025 BST
Best Forecast Surf Conditions for Porth Colmon this week:
The surf forecast for Porth Colmon over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Apr 06) at 4AM. The primary swell is predicted to be 0.6m and 12s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Porth Colmon in the next 12 days are 0.6m 12s and forecast to arrive on Sunday (Apr 06) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Wednesday (Apr 02) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sun 6th Apr) | 2ft (0.6m) 12s |
| Best Surf | 4AM (Sun 6th Apr) | 2ft (0.6m) 12s |
| Most Powerful | 4AM (Sun 6th Apr) | 2ft (0.6m) 12s |
Table - best surf conditions forecast for Porth Colmon over the next 12 days.
Mon 31 | Tuesday 01 | Wednesday 02 | Thursday 03 | Friday 04 | Saturday 05 | Sunday 06 | Monday 07 | Tuesday 08 | Wednesday 09 | Thursday 10 | Friday 11 | Sat 12 | ||||||||||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 20 | 15 | 13 | 6 | 13 | 9 | 12 | 12 | 13 | 12 | 11 | 7 | 6 | 6 | 10 | 9 | 12 | 11 | 10 | 9 | 8 | 8 | 8 | 8 | 13 | 12 | 11 | 12 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 3 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 8 | 9 | 7 | 7 | 6 | 8 | 6 | 6 | 7 | 6 | 2 | 11 | 7 | 3 | 4 | 13 | 51 | 94 | 80 | 55 | 34 | 24 | 16 | 16 | 42 | 55 | 60 | 106 | 72 | 35 | 35 | 15 | 15 | 9 | 4 | 4 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | off | off | off | cross- off | cross- off | cross- off | cross | cross- off | cross- off | cross- off | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | glass | off | off | on | off | off | glass | off | off | cross- off | off | off | glass | glass | cross- off | cross- off | cross- off | off |
High Tide / height (m) | 10:38PM 4.40 | 10:59AM 4.54 | 11:20PM 4.25 | 11:44AM 4.20 | 12:04AM 3.98 | 12:32PM 3.75 | 12:52AM 3.62 | 1:27PM 3.26 | 1:51AM 3.25 | 2:39PM 2.84 | 3:13AM 2.97 | 4:21PM 2.65 | 4:55AM 2.95 | 5:58PM 2.76 | 6:14AM 3.16 | 6:55PM 2.99 | 7:06AM 3.41 | 7:35PM 3.24 | 7:45AM 3.64 | 8:09PM 3.47 | 8:20AM 3.83 | 8:41PM 3.67 | 8:53AM 3.95 | |||||||||||||
Low Tide / height (m) | 5:15PM -0.20 | 5:29AM -0.06 | 5:56PM 0.07 | 6:14AM 0.14 | 6:40PM 0.43 | 7:04AM 0.44 | 7:29PM 0.83 | 8:04AM 0.78 | 8:31PM 1.20 | 9:22AM 1.07 | 9:56PM 1.43 | 10:57AM 1.17 | 11:31PM 1.42 | 12:24PM 1.04 | 12:46AM 1.22 | 1:25PM 0.81 | 1:40AM 0.98 | 2:10PM 0.60 | 2:21AM 0.76 | 2:46PM 0.44 | 2:55AM 0.59 | 3:17PM 0.34 | 3:25AM 0.47 | |||||||||||||
Mon 31 | Tuesday 01 | Wednesday 02 | Thursday 03 | Friday 04 | Saturday 05 | Sunday 06 | Monday 07 | Tuesday 08 | Wednesday 09 | Thursday 10 | Friday 11 | Sat 12 | ||||||||||||||||||||||||
| Sunrise | - | - | 6:54 | - | - | 6:50 | - | - | 6:48 | - | - | 6:47 | - | - | 6:43 | - | - | 6:41 | - | - | 6:39 | - | - | 6:37 | - | - | 6:35 | - | - | 6:33 | - | - | 6:30 | - | - | 6:28 |
| Sunset | 7:50 | - | - | 7:52 | - | - | 7:53 | - | - | 7:54 | - | - | 7:57 | - | - | 7:59 | - | - | 8:00 | - | - | 8:02 | - | - | 8:04 | - | - | 8:06 | - | - | 8:07 | - | - | 8:09 | - | - |
 |  | |  |  | | | | |  |  | | | | | | | | | | | | | | |  |  | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | 1 | 2 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 13 | 13 | 11 | 13 | 11 | 11 | 14 | 10 | 13 | 15 | 14 | 14 | 16 | 13 | 12 | 15 | 12 | 11 | 15 | 15 | 12 | 14 | 14 | 12 | 14 | 14 | 13 | 15 | 14 | 11 | 13 | 12 | 11 | 12 | 12 | 14 |
| Feels °C (?) | 10 | 11 | 5 | 7 | 6 | 7 | 9 | 6 | 8 | 10 | 9 | 12 | 13 | 8 | 8 | 12 | 8 | 9 | 13 | 12 | 10 | 11 | 11 | 8 | 12 | 11 | 10 | 13 | 11 | 8 | 11 | 9 | 8 | 9 | 9 | 10 |
Short Range Forecast: Mostly dry. Very mild (max 14°C on Wed afternoon, min 8°C on Tue night). Winds increasing (calm on Mon afternoon, fresh winds from the NE by Wed night). | Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Thu night. Very mild (max 16°C on Fri afternoon, min 8°C on Sat night). Wind will be generally light. | Days 6-9 Weather Summary Mostly dry. Very mild (max 15°C on Sun afternoon, min 11°C on Mon morning). Wind will be generally light. | Long Range Forecast: Mostly dry. Very mild (max 15°C on Wed afternoon, min 10°C on Thu morning). Wind will be generally light. | |||||||||||||||||||||||||||||||||
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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 Colmon 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 Colmon Surf forecast
The above surf forecast table for Porth Colmon provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Porth Colmon can be found by selecting the local surf guide option on the grey menu. Our Porth Colmon 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 Colmon) 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 Colmon 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 Lleyn Peninsula? If you are looking for accommodation near Porth Colmon, camping, hotels and holiday cottages in Lleyn Peninsula, consider staying in Porthmadog which is 37 km (23 miles) away. Other places in and around Lleyn Peninsula where you can find information about places to rent, and car hire include Anglesey which is 42 km (26 miles) away, Holyhead, Bangor and Aberystwyth.
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