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Portinfer surfForecast / Guernsey / UK
12 Day Weather and Surf, issued 12 pm Friday 11 Jul 2025 BST
Best Forecast Surf Conditions for Portinfer this week:
The surf forecast for Portinfer over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Jul 17) at 4AM. The primary swell is predicted to be 1.4m and 9s period. The wind is predicted to be onshore as the swell arrives.
The most powerful waves expected at Portinfer in the next 12 days are 2.0m 10s and forecast to arrive on Thursday (Jul 17) at 10PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Sunday (Jul 13) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Thu 17th Jul) | 4.5ft (1.4m) 9s |
| Best Surf | 7AM (Thu 17th Jul) | 5ft (1.6m) 8s |
| Most Powerful | 10PM (Thu 17th Jul) | 6.5ft (2.0m) 10s |
Table - best surf conditions forecast for Portinfer over the next 12 days.
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | |||||||||||||||||||||||||
| 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 | PM | Night | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 9 | 6 | 8 | 8 | 9 | 9 | 10 | 9 | 9 | 9 | 9 | 9 | 10 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 8 | 9 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 26 | 29 | 26 | 38 | 36 | 36 | 36 | 37 | 101 | 172 | 260 | 282 | 390 | 425 | 407 | 450 | 461 | 262 | 371 | 678 | 605 | 325 | 188 | 321 | 461 | 286 | 185 | 156 | 129 | 84 | 86 | 115 | 219 | 459 | 177 | 273 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross | cross- off | cross- off | cross | cross- off | cross- off | on | cross- on | cross- on | cross- on | cross- on | cross | cross- on | cross | cross | cross- on | on | cross- off | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | glass | cross- on | on | glass | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 8:01PM 7.50 | 8:23AM 7.35 | 8:38PM 7.75 | 9:01AM 7.52 | 9:16PM 7.89 | 9:39AM 7.59 | 9:55PM 7.91 | 10:19AM 7.56 | 10:35PM 7.80 | 11:02AM 7.41 | 11:20PM 7.56 | 11:49AM 7.17 | 12:09AM 7.20 | 12:42PM 6.87 | 1:08AM 6.81 | 1:46PM 6.59 | 2:19AM 6.49 | 3:00PM 6.45 | 3:39AM 6.39 | 4:17PM 6.56 | 4:55AM 6.57 | 5:26PM 6.89 | ||||||||||||||
Low Tide / height (m) | 1:58PM 1.31 | 2:22AM 0.99 | 2:36PM 1.09 | 3:00AM 0.78 | 3:13PM 0.96 | 3:38AM 0.66 | 3:51PM 0.93 | 4:16AM 0.65 | 4:30PM 1.00 | 4:57AM 0.77 | 5:13PM 1.17 | 5:41AM 1.00 | 6:01PM 1.43 | 6:30AM 1.33 | 6:56PM 1.73 | 7:29AM 1.70 | 8:02PM 1.98 | 8:38AM 1.98 | 9:20PM 2.07 | 9:58AM 2.05 | 10:41PM 1.90 | 11:14AM 1.87 | 11:52PM 1.53 | |||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | |||||||||||||||||||||||||
| Sunrise | 5:15 | - | - | 5:16 | - | - | 5:16 | - | - | 5:18 | - | - | 5:18 | - | - | 5:20 | - | - | 5:20 | - | - | 5:22 | - | - | 5:24 | - | - | 5:24 | - | - | 5:26 | - | - | 5:26 | - | - |
| Sunset | - | 9:15 | - | - | 9:14 | - | - | 9:14 | - | - | 9:13 | - | - | 9:12 | - | - | 9:10 | - | - | 9:09 | - | - | 9:08 | - | - | 9:07 | - | - | 9:07 | - | - | 9:06 | - | - | 9:05 | - |
 | |  | | | | |  | | | | | | |  |  | |  | | |  | | | |  | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 22 | 25 | 23 | 22 | 25 | 22 | 21 | 21 | 19 | 18 | 18 | 17 | 17 | 17 | 17 | 18 | 18 | 19 | 19 | 19 | 19 | 18 | 19 | 19 | 18 | 18 | 18 | 18 | 19 | 19 | 18 | 19 | 19 | 18 | 18 | 17 |
| Feels °C (?) | 21 | 20 | 18 | 17 | 20 | 18 | 19 | 20 | 16 | 14 | 14 | 12 | 12 | 13 | 14 | 13 | 14 | 16 | 20 | 20 | 19 | 17 | 19 | 18 | 16 | 18 | 18 | 19 | 18 | 19 | 19 | 18 | 17 | 16 | 15 | 13 |
Short Range Forecast: Some drizzle, heaviest during Sun afternoon. Warm (max 25°C on Fri afternoon, min 17°C on Sat night). Mainly fresh winds. | Days 3-6 Weather Summary Mostly dry. Very mild (max 19°C on Wed night, min 16°C on Tue night). Winds decreasing (strong winds from the WSW on Tue night, calm by Wed night). | Days 6-9 Weather Summary Some drizzle, heaviest during Thu night. Very mild (max 19°C on Thu morning, min 17°C on Sat morning). Wind will be generally light. | Long Range Forecast: Mostly dry. Very mild (max 19°C on Sun afternoon, min 17°C on Tue night). 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 Portinfer 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 Portinfer Surf forecast
The above surf forecast table for Portinfer provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Portinfer can be found by selecting the local surf guide option on the grey menu. Our Portinfer 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 (Portinfer) 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 Portinfer 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 Guernsey? If you are looking for accommodation near Portinfer, camping, hotels and holiday cottages in Guernsey, consider staying in Saint Peter Port which is 6 km (4 miles) away. Other places in and around Guernsey where you can find information about places to rent, and car hire include Guernsey which is 7 km (4 miles) away, Saint Helier, Octeville and Equeurdreville-Hainneville.
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