- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Jeffs Left surfForecast / Wales – Mid / UK
12 Day Weather and Surf, issued 12 pm Saturday 13 Sep 2025 BST
Best Forecast Surf Conditions for Jeffs Left this week:
The most powerful waves expected at Jeffs Left in the next 12 days are 3.5m 11s and forecast to arrive on Monday (Sep 15) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 7s period and expected on Tuesday (Sep 16) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Mon 15th Sep) | 11ft (3.5m) 11s |
Table - best surf conditions forecast for Jeffs Left over the next 12 days.
Short Range Forecast Heavy rain (total 47mm), heaviest during Sun afternoon. Very mild (max 17°C on Sun afternoon, min 13°C on Sat night). Winds increasing (light winds from the SW on Sat night, near gales from the WSW by Mon morning). | Days 3-6 Weather Summary Moderate rain (total 10mm), heaviest on Tue night. Very mild (max 18°C on Wed morning, min 12°C on Tue night). Winds decreasing (strong winds from the SW on Thu afternoon, light winds from the WNW by Thu night). | ||||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||
| 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) (?) | 6 | 7 | 5 | 7 | 7 | 9 | 11 | 9 | 7 | 7 | 6 | 6 | 8 | 9 | 8 | 9 | 8 | 6 | 6 | 9 | 6 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 104 | 249 | 65 | 14 | 261 | 1232 | 2124 | 1323 | 606 | 0 | 108 | 58 | 308 | 601 | 602 | 906 | 650 | 151 | 24 | 32 | 15 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | on | on | cross- off | cross- on | cross- on | on | on | on | on | on | cross- on | cross- off | cross- on | cross- on | cross- on | cross- on | on | glass | glass | cross- off |
High Tide / height (m) | 12:36PM 3.94 | 1:04AM 3.78 | 1:30PM 3.55 | 2:07AM 3.30 | 2:41PM 3.21 | 3:33AM 2.97 | 4:16PM 3.10 | 5:13AM 2.97 | 5:44PM 3.30 | 6:25AM 3.20 | 6:45PM 3.64 | 7:15AM 3.49 | 7:32PM 3.97 | ||||||||
Low Tide / height (m) | 7:36PM 0.86 | 8:13AM 1.15 | 8:53PM 1.15 | 9:37AM 1.42 | 10:32PM 1.28 | 11:16AM 1.46 | 12:07AM 1.14 | 12:39PM 1.25 | 1:19AM 0.84 | 1:39PM 0.95 | 2:11AM 0.54 | 2:25PM 0.67 | 2:53AM 0.31 | ||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||
| Sunrise | 6:46 | - | - | 6:47 | - | - | 6:48 | - | - | 6:50 | - | - | 6:52 | - | - | 6:54 | - | - | 6:56 | - | - |
| Sunset | - | 7:37 | - | - | 7:35 | - | - | 7:32 | - | - | 7:30 | - | - | 7:28 | - | - | 7:24 | - | - | 7:22 | - |
 | |  |  |  | | | | |  | |  | |  |  | |  | | | |  | |
Rain (mm) | 4 | 5 | 3 | 5 | 18 | 8 | 1 | 2 | 1 | - | 2 | 6 | 2 | - | - | - | - | - | - | - | - |
| Temp. °C | 14 | 15 | 14 | 14 | 17 | 15 | 14 | 15 | 14 | 14 | 15 | 14 | 18 | 16 | 15 | 15 | 15 | 15 | 15 | 17 | 17 |
| Feels °C (?) | 8 | 8 | 8 | 9 | 14 | 6 | 3 | 5 | 4 | 6 | 9 | 10 | 13 | 9 | 7 | 6 | 6 | 8 | 14 | 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 - Mid
Continuing clean conditions at Jeffs Left (light winds from the WSW at Machynlleth 23 km from Jeffs Left). A 1.8m windswell from the WSW
23 km away, 2 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 Jeffs Left 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 Jeffs Left Surf forecast
The above surf forecast table for Jeffs Left provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Jeffs Left can be found by selecting the local surf guide option on the grey menu. Our Jeffs Left 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 (Jeffs Left) 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 Jeffs Left 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 Mid Wales? If you are looking for accommodation near Jeffs Left, camping, hotels and holiday cottages in Mid Wales, consider staying in Aberystwyth which is 21 km (13 miles) away. Other places in and around Mid Wales where you can find information about places to rent, and car hire include Trawscoed which is 31 km (19 miles) away, Porthmadog, Aberporth and Welshpool.
Nearest