Surf Forecasts:
Jeffs Left surf forecast from 12 Nov 2026:
- Best quality surf: Wednesday 25 Nov, 6AM (local time) - 11ft (3.5m), 11s period, W swell with cross-shore winds.
- Most powerful swell: Wednesday 25 Nov, 12AM (local time) - 11ft (3.5m), 12s period, WSW swell with 3,700 kJ wave energy.
- Next surfable swell (1★+): Wednesday 18 Nov, 9AM (local time) - 3ft (0.9m), 12s period with WSW swell.
Best Forecast Surf Conditions for Jeffs Left this week:
The surf forecast for Jeffs Left over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Nov 18) at 9AM. The primary swell is predicted to be 0.9m and 12s period with a secondary swell of 0.4m and 19s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Jeffs Left in the next 16 days are 3.5m 12s and forecast to arrive on Wednesday (Nov 25) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.4m 8s period and expected on Thursday (Nov 19) at 6AM.
| Wave Type | Time (GMT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Wed 18th Nov) | 3ft (0.9m) 12s |
| Best Surf | 6AM (Wed 25th Nov) | 11ft (3.5m) 11s |
| Most Powerful | 12AM (Wed 25th Nov) | 11ft (3.5m) 12s |
Table - best surf conditions forecast for Jeffs Left over the next 16 days.
Short Range ForecastLight rain (total 2mm), mostly falling on Sat night. Mild temperatures (max 9°C on Sat morning, min 5°C on Thu night). Winds increasing (calm on Thu night, fresh winds from the S by Sat night). | Days 4-6 Weather SummaryHeavy rain (total 40mm), heaviest during Tue morning. Very mild (max 11°C on Sun morning, min 5°C on Mon night). Winds decreasing (near gales from the WNW on Sun night, light winds from the WSW by Mon afternoon). | ||||||||||||||||||||
Thursday 12 | Friday 13 | Saturday 14 | Sunday 15 | Monday 16 | Tuesday 17 | Wednesday 18 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | WSW 10 | WSW 10 | WSW 10 | SW 9 | W 16 | SW 14 | WSW 13 | WSW 12 | SW 6 | SW 8 | WSW 7 | WNW 7 | WNW 6 | W 5 | WSW 9 | WSW 9 | WSW 8 | WSW 11 | WSW 12 | WSW 16 | WSW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 21 | 10 | 10 | 3 | 5 | 8 | 17 | 15 | 32 | 88 | 289 | 0 | 145 | 19 | 17 | 8 | 7 | 140 | 217 | 722 | 387 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | glassy | cross-off | cross-on | cross | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | off | off | cross | cross-on | cross-off | cross-off | cross-off |
High Tide | 9:23AM4.10m | 9:43PM3.80m | 9:58AM3.92m | 10:19PM3.55m | 10:35AM3.70m | 10:55PM3.29m | 11:14AM3.47m | 11:37PM3.03m | 12:00PM3.25m | 00:28AM2.81m | 12:58PM3.07m | 1:38AM2.68m | 2:13PM3.02m | ||||||||
Low Tide | 4:19PM0.74m | 4:22AM0.96m | 4:56PM0.91m | 4:58AM1.12m | 5:42PM1.09m | 5:43AM1.28m | 6:35PM1.25m | 6:38AM1.42m | 7:35PM1.35m | 7:41AM1.50m | 8:37PM1.36m | 8:47AM1.51m | 9:40PM1.26m | ||||||||
 | |  |  | |  |  | |  |  | |  | | | |  |  | | | | | |
 | 7:31 | — | — | 7:33 | — | — | 7:35 | — | — | 7:37 | — | — | 7:39 | — | — | 7:41 | — | — | 7:43 | — | — |
 | — | 4:28 | — | — | 4:25 | — | — | 4:24 | — | — | 4:22 | — | — | 4:22 | — | — | 4:20 | — | — | 4:19 | — |
mm | — | — | — | — | — | — | — | — | 2 | 3 | 2 | 5 | 1 | — | 3 | 18 | 7 | 1 | — | — | — |
Temp °C | 8 | 8 | 5 | 7 | 8 | 6 | 9 | 9 | 9 | 11 | 11 | 9 | 8 | 8 | 7 | 10 | 7 | 8 | 8 | 7 | 6 |
Feels °C | 2 | 2 | 1 | 4 | 5 | 2 | 3 | 3 | 3 | 5 | 4 | -2 | 3 | 4 | 0 | 5 | -2 | 3 | 3 | 2 | 3 |
Swell 1 Height (m) Direction Period (s) | NNW 5 | WSW 10 | NNW 6 | NW 5 | NNW 4 | SW 14 | WSW 4 | WSW 12 | SW 6 | SW 8 | — | — | — | NW 5 | WSW 9 | WSW 9 | WSW 8 | WSW 11 | WSW 12 | WSW 16 | WSW 15 |
| kJ | 17 | 10 | 12 | 3 | 2 | 8 | 1 | 14 | 32 | 88 | — | — | — | 23 | 17 | 8 | 7 | 140 | 217 | 722 | 387 |
Swell 2 Height (m) Direction Period (s) | WSW 10 | — | WSW 10 | SW 9 | SW 9 | NW 4 | WSW 13 | — | WSW 12 | — | — | — | — | W 5 | NW 4 | — | W 12 | NNW 4 | WSW 19 | — | — |
| kJ | 21 | — | 10 | 3 | 3 | 1 | 17 | — | 13 | — | — | — | — | 18 | 3 | — | 3 | 3 | 115 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 16 | SW 8 | W 8 | — | — | — | — | — | — | WSW 10 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 5 | 3 | 1 | — | — | — | — | — | — | 19 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NE 2 | NNW 6 | — | — | — | — | S 3 | SSW 4 | SSE 3 | S 4 | WSW 7 | WNW 7 | WNW 6 | — | ENE 2 | ENE 4 | NNE 4 | — | NNE 2 | N 4 | NW 6 |
| kJ | 1 | 39 | — | — | — | — | 3 | 15 | 5 | 12 | 289 | 349 | 145 | — | 2 | 30 | 16 | — | 1 | 5 | 164 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 104 | 104 | 33 | 108 | 112 | 114 | 111 | 111 | 356 | 132 | 304 | 301 | 112 | 35 | 219 | 526 | 400 | 14 | 0 | 14 | 0 |
Best forecast wave conditions in Mid Wales | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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 16 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.
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