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Surf Forecasts:

Jeffs Left surfForecast / Wales – Mid / UK

information circle12 Day Weather and Surf, issued 11 pm Monday 16 Feb 2026 GMT
Forecast 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
7.5° C
 (Which is slightly cooler than normal)

Best Forecast Surf Conditions for Jeffs Left this week:

The surf forecast for Jeffs Left over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Feb 17) at 12PM. The primary swell is predicted to be 0.5m and 13s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Jeffs Left in the next 12 days are 1.4m 18s and forecast to arrive on Saturday (Feb 21) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Tuesday (Feb 17) at 3AM.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+)12PM (Tue 17th Feb)1.5ft (0.5m) 13s
Best Surf12PM (Tue 17th Feb)1.5ft (0.5m) 13s
Most Powerful12PM (Sat 21st Feb)4.5ft (1.4m) 18s

Table - best surf conditions forecast for Jeffs Left over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Light rain (total 9mm), mostly falling on Wed night. Mild temperatures (max 6°C on Mon night, min 2°C on Tue night). Winds increasing (calm on Tue morning, strong winds from the ESE by Wed morning).

Days 3-6 Weather Summary Heavy rain (total 27mm), heaviest during Fri morning. Very mild (max 10°C on Fri afternoon, min 2°C on Thu night). Winds increasing (light winds from the SE on Thu night, strong winds from the SSW by Fri morning).

Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Mon
23
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
1
0
0
0
0
1
1
1
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.9
WSW
0.6
WSW
0.4
WSW
0.4
WSW
0.3
WSW
0.4
WSW
0.5
WSW
0.7
WSW
0.6
WSW
0.7
WSW
0.4
WSW
1.7
WSW
1.4
WSW
1.5
WSW
1.7
WSW
1.5
WSW
1.7
WSW
2.2
WSW
1.6
WSW
1.2
W
0.8
WSW
Period(s) (?)13139111110121312111089867891059
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2461333049234175187117128373563402702112433567324618596
Wind
(km/h)
35
NW
10
NNW
10
SE
35
ESE
50
ESE
50
ESE
40
ENE
10
ENE
10
ENE
15
SSE
35
S
40
SW
40
SW
40
SW
40
SW
40
SW
40
SW
35
SW
40
W
25
WNW
10
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		crosscross-
off		cross-
off		cross-
off		offoffoffoffcross-
off		crosscross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		ononcross-
on
High Tide
/ height (m)
8:02AM
4.24
8:19PM
4.01
8:35AM
4.50
8:54PM
4.19
9:10AM
4.67
9:29PM
4.30
9:46AM
4.72
10:06PM
4.31
10:25AM
4.63
10:46PM
4.21
11:06AM
4.41
11:28PM
4.00
11:51AM
4.07
Low Tide
/ height (m)
2:46AM
0.47
3:13PM
0.26
3:19AM
0.32
3:47PM
0.12
3:52AM
0.25
4:21PM
0.08
4:24AM
0.27
4:54PM
0.16
4:56AM
0.37
5:27PM
0.33
5:28AM
0.54
6:01PM
0.59
6:02AM
0.77
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Mon
23
Sunrise-7:28--7:26--7:24--7:22--7:20--7:18--7:16-
Sunset--5:30--5:32--5:35--5:37--5:38--5:40--5:43
clear
cloud
cloud
cloud
cloud
cloud
mod rain
light rain
cloud
cloud
mod rain
light rain
light rain
light rain
cloud
rain showers
mod rain
light rain
rain showers
clear
part cloud
Rain (mm)
------72--6422-2652--
Temp. °C6663343334910101010101010977
Feels °C (?)-242-6-9-7-800-312233323104
  • 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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View detailed surf forecast for Jeffs Left at:
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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 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.

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