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Prefailles surfForecast / Loire Atlantique / France
12 Day Weather and Surf, issued 1 pm Thursday 31 Jul 2025 CEST
Best Forecast Surf Conditions for Prefailles this week:
The most powerful waves expected at Prefailles in the next 12 days are 0.7m 8s and forecast to arrive on Friday (Aug 01) at 2AM. 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 5s period and expected on Friday (Aug 01) at 11PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Fri 1st Aug) | 2.5ft (0.7m) 8s |
Table - best surf conditions forecast for Prefailles over the next 12 days.
Short Range Forecast Mostly dry. Warm (max 21°C on Fri afternoon, min 14°C on Fri night). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Warm (max 26°C on Tue afternoon, min 15°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||||
Thu 31 | Friday 01 | Saturday 02 | Sunday 03 | Monday 04 | Tuesday 05 | Wednesday 06 | |||||||||||||||||
| 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) (?) | 9 | 8 | 8 | 8 | 7 | 8 | 8 | 8 | 8 | 3 | 4 | 4 | 8 | 9 | 9 | 11 | 11 | 11 | 10 | 10 | 9 | ||
Wave (?)Graph  | |||||||||||||||||||||||
| Energy (?) | 57 | 73 | 21 | 64 | 40 | 29 | 43 | 8 | 16 | 0 | 6 | 2 | 21 | 25 | 17 | 37 | 35 | 35 | 19 | 19 | 7 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- off | off | cross | off | off | cross- off | off | off | cross- off | cross- off | cross | cross- off | off | cross- off | off | cross- off | cross | cross | cross | on | ||
High Tide / height (m) | 9:32PM 3.63 | 9:54AM 3.42 | 10:16PM 3.36 | 10:46AM 3.24 | 11:17PM 3.13 | 12:01PM 3.10 | 12:52AM 3.02 | 1:46PM 3.13 | 2:31AM 3.12 | 3:01PM 3.32 | 3:31AM 3.33 | 3:51PM 3.59 | 4:14AM 3.59 | ||||||||||
Low Tide / height (m) | 4:08PM 0.97 | 4:34AM 1.07 | 4:56PM 1.23 | 5:23AM 1.33 | 5:51PM 1.44 | 6:22AM 1.51 | 6:59PM 1.55 | 7:31AM 1.55 | 8:11PM 1.49 | 8:40AM 1.43 | 9:16PM 1.29 | 9:38AM 1.19 | 10:09PM 0.99 | 10:26AM 0.90 | |||||||||
Thu 31 | Friday 01 | Saturday 02 | Sunday 03 | Monday 04 | Tuesday 05 | Wednesday 06 | |||||||||||||||||
| Sunrise | - | - | 6:47 | - | - | 6:48 | - | - | 6:48 | - | - | 6:50 | - | - | 6:52 | - | - | 6:52 | - | - | 6:54 | ||
| Sunset | 9:43 | - | - | 9:42 | - | - | 9:40 | - | - | 9:38 | - | - | 9:37 | - | - | 9:36 | - | - | 9:35 | - | - | ||
 |  |  | |  | | | | | | | | | | | | | | | | | |||
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Temp. °C | 19 | 19 | 18 | 21 | 21 | 17 | 19 | 20 | 18 | 23 | 23 | 20 | 21 | 20 | 17 | 26 | 26 | 22 | 32 | 30 | 26 | ||
| Feels °C (?) | 17 | 17 | 17 | 19 | 18 | 15 | 16 | 16 | 16 | 18 | 22 | 21 | 20 | 17 | 13 | 21 | 20 | 16 | 28 | 25 | 23 | ||
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Recent Eyeball Surf Reports for Loire Atlantique
The wind is still cross-off at Prefailles (light winds from the WNW.(Wind varies from 260 to 320 degs) at Saint -Nazaire -Montoir 21 km from Prefailles). 0.7m 9s swell from the W with a 0.3m 9s swell, also from the W. 2 swells combining to make bigger set waves.
21 km away, 1 h 24 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 Prefailles 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 Prefailles Surf forecast
The above surf forecast table for Prefailles provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Prefailles can be found by selecting the local surf guide option on the grey menu. Our Prefailles 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 (Prefailles) 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 Prefailles 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.
Prefailles is 17 km (11 miles) from Saint-Nazaire. If you plan a holiday in Loire Atlantique, look for hotels and other accommodation in Saint-Nazaire. Saint-Nazaire has rooms for a wide range of budgets as well as car hire and transport links.
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