Using Surf-Forecast’s Historical Surf Data To Find The Most Consistent Waves On Earth
Using our statistical data for 7000 spots dating back to 2006, we can find those waves that break the most, with the best winds.
Surf Forecasts:
Portinfer surfForecast / Guernsey / UK
48hr Weather and Surf, issued 11 pm Wednesday 17 Dec 2025 GMTForecast update in hr min s Forecast update imminent
Portinfer surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Portinfer sea temperature is
13.2° C
(Which is 1.8°C warmer than normal for this time of year)How big are the waves at Portinfer today?
The current surf forecast for Portinfer at 7AM is: 2.2m 21s primary swell from a West direction and 2.4m 11s secondary swell from a West direction (forecast issued at 11:00pm December 17). An open ocean swell of 1.9m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Dec) | 11ft (3.5m) | 20s |
| Afternoon (18 Dec) | 15ft (4.5m) | 19s |
| Evening (18 Dec) | 11ft (3.5m) | 18s |
Table - waves today at Portinfer. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 18 | Friday 19 | Saturday 20 | ||||||||||||||||||||||
| 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 11 | 11 | 21 | 20 | 20 | 19 | 19 | 18 | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 13 | 13 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1175 | 2622 | 2614 | 4355 | 10102 | 9235 | 15520 | 11624 | 7963 | 6848 | 6696 | 5795 | 5244 | 4884 | 4826 | 4333 | 3891 | 3144 | 2491 | 2216 | 1407 | 1275 | 1465 | 1598 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 5:14AM 6.78 | 5:35PM 6.75 | 5:52AM 7.04 | 6:13PM 6.98 | 6:28AM 7.26 | |||||||||||||||||||
Low Tide / height (m) | 11:08PM 1.89 | 11:32AM 1.70 | 11:48PM 1.66 | 12:11PM 1.44 | 12:25AM 1.46 | 12:47PM 1.24 | ||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 8:00 | - | - | - | - | - | - | - | 8:02 | - | - | - | - | - | - | - | 8:02 | - | - | - |
| Sunset | - | - | - | - | - | - | 4:10 | - | - | - | - | - | - | - | 4:10 | - | - | - | - | - | - | - | 4:12 | - |
 |  | | |  | |  | | | | | |  | | |  | | | | |  |  | | | |
Rain (mm) | - | 4 | 1 | 1 | 9 | 6 | 3 | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 |
| Temp. °C | 11 | 12 | 12 | 12 | 12 | 13 | 14 | 13 | 12 | 11 | 11 | 11 | 11 | 11 | 12 | 11 | 11 | 10 | 10 | 10 | 10 | 9 | 10 | 10 |
| Feels °C (?) | 0 | 2 | 4 | 3 | 2 | 0 | -1 | 3 | 4 | 3 | 4 | 3 | 3 | 4 | 5 | 5 | 4 | 3 | 2 | 1 | 0 | -1 | 0 | 0 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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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.
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