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Jeffs Left surfForecast / Wales – Mid / UK
48hr Weather and Surf, issued 12 pm Monday 18 May 2026 BSTForecast update in hr min s Forecast update imminent
Jeffs Left surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Jeffs Left sea temperature is
12.3° C
(Which is 1.3°C warmer than normal for this time of year)How big are the waves at Jeffs Left today?
The current surf forecast for Jeffs Left at 8PM is: 0.4m 6s primary swell from a West-southwest direction and 0.5m 3s secondary swell from a Southwest direction (forecast issued at 12:00pm May 18). The wind direction is predicted to be cross-shore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 2.5ft (0.7m) | 7s |
| Afternoon (18 May) | 2ft (0.6m) | 7s |
| Evening (18 May) | 1.5ft (0.5m) | 6s |
Table - waves today at Jeffs Left. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 22mm), heaviest during Mon night. Very mild (max 14°C on Wed night, min 10°C on Mon morning). Winds increasing (light winds from the SW on Mon morning, strong winds from the SW by Tue night). | ||||||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
WSW 7 | WSW 7 | WSW 7 | SW 7 | WSW 6 | WSW 6 | WSW 7 | SW 7 | SW 8 | SW 8 | SW 5 | SW 6 | WSW 6 | WSW 8 | WSW 9 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 5 | WSW 9 | WSW 6 | |
48 | 26 | 29 | 11 | 26 | 24 | 29 | 89 | 110 | 135 | 98 | 188 | 222 | 403 | 416 | 160 | 122 | 129 | 126 | 119 | 57 | 32 | 67 | 45 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-off | |
High Tide | 9:45AM4.60m | 10:06PM4.65m | 10:32AM4.43m | 10:53PM4.53m | 11:20AM4.14m | 11:42PM4.32m | ||||||||||||||||||
Low Tide | 4:53PM0.34m | 5:22AM0.20m | 5:43PM0.49m | 6:17AM0.31m | 6:35PM0.69m | |||||||||||||||||||
 |  |  | |  | | | | | | | | | |  | | |  | | |  |  | | | |
 | 5:16 | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:11 | — |
 | — | — | — | 9:09 | — | — | — | — | — | — | — | 9:10 | — | — | — | — | — | — | — | 9:13 | — | — | — | 9:14 |
1 | — | 1 | 1 | 2 | 2 | 3 | 1 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | |
Temp °C | 10 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 12 | 13 | 14 |
6 | 7 | 7 | 6 | 6 | 4 | 7 | 6 | 8 | 7 | 6 | 4 | 4 | 4 | 5 | 6 | 6 | 6 | 8 | 8 | 10 | 9 | 9 | 11 | |
Swell 1 Height (m) Direction Period (s) | WSW 7 | WSW 7 | WNW 4 | SW 7 | WSW 6 | WSW 6 | WSW 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 9 | WSW 5 | WSW 9 | WSW 6 |
 kJ | 48 | 26 | 1 | 11 | 26 | 24 | 29 | — | — | — | — | — | — | — | — | — | — | — | — | — | 30 | 32 | 67 | 45 |
Swell 2 Height (m) Direction Period (s) | — | NW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 12 | WSW 11 | WSW 11 | — |
| kJ | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 26 | 13 | 13 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | WSW 7 | SW 3 | SSE 3 | SSE 3 | S 4 | SW 7 | SW 8 | SW 8 | SW 5 | SW 6 | WSW 6 | WSW 8 | WSW 9 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | S 3 | S 3 | S 3 |
| kJ | — | — | 29 | 5 | 3 | 7 | 13 | 89 | 110 | 135 | 98 | 188 | 222 | 403 | 416 | 160 | 122 | 129 | 126 | 119 | 57 | 3 | 3 | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 252 | 328 | 331 | 331 | 331 | 321 | 345 | 331 | 371 | 357 | 357 | 303 | 303 | 304 | 325 | 331 | 372 | 520 | 350 | 237 | 14 | 35 | 181 | 155 |
Best forecast wave conditions in Mid Wales | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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