Jeffs Left surfForecast / Wales – Mid / UK

information circle12 Day Weather and Surf, issued 11 pm Friday 12 Dec 2025 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
9.7° 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 Monday (Dec 15) at 12PM. The primary swell is predicted to be 1.0m and 11s 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 2.0m 13s and forecast to arrive on Friday (Dec 19) at 6PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 4s period and expected on Friday (Dec 19) at 3AM.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+)12PM (Mon 15th Dec)3.5ft (1.0m) 11s
Best Surf 3AM (Thu 18th Dec)5.5ft (1.7m) 9s
Most Powerful 6PM (Fri 19th Dec)6.5ft (2.0m) 13s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 58mm), heaviest during Sun night. Very mild (max 11°C on Sun afternoon, min 8°C on Fri night). Winds decreasing (strong winds from the S on Sun afternoon, calm by Mon morning).

Days 3-6 Weather Summary Heavy rain (total 30mm), heaviest during Wed night. Very mild (max 12°C on Thu afternoon, min 6°C on Tue night). Winds increasing (calm on Mon night, near gales from the SSE by Thu afternoon).

Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Fri
19
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
0
1
0
1
1
0
0
0
0
0
1
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.4
WSW
0.4
WSW
1.4
SW
1.8
SW
1.9
SW
2
SW
2.2
SW
1.2
WSW
0.8
WSW
1
NW
0.3
WSW
0.3
WSW
0.2
WSW
1.1
SW
1.6
SW
1.9
SW
0.6
W
0.5
W
0.4
WSW
1
WSW
1.2
WSW
Period(s) (?)1816689910101051614155892019181212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)102821624505376649513101254948412165267612284182102260433
Wind
(km/h)
20
SSW
25
S
35
SSW
40
SSW
35
S
45
S
40
S
10
SSW
20
NNW
10
ENE
5
NE
5
NW
15
SSE
30
S
40
S
35
SSW
20
SE
50
SSE
55
S
55
S
45
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscross-
on
crosscrosscrosscrosscrosscrosscross-
off
glasscross-
on
cross-
off
crosscrosscrosscross-
off
cross-
off
crosscrosson
High Tide
/ height (m)
2:31AM
2.90
2:57PM
3.24
3:45AM
2.96
4:06PM
3.22
4:44AM
3.11
5:03PM
3.29
5:32AM
3.30
5:50PM
3.40
6:14AM
3.49
6:32PM
3.53
6:52AM
3.67
7:10PM
3.65
7:28AM
3.83
Low Tide
/ height (m)
9:11PM
1.03
9:21AM
1.35
10:12PM
1.11
10:29AM
1.36
11:12PM
1.13
11:35AM
1.29
12:05AM
1.10
12:29PM
1.17
12:50AM
1.03
1:15PM
1.03
1:30AM
0.95
1:54PM
0.89
2:08AM
0.87
2:33PM
0.77
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Fri
19
Sunrise-8:18--8:18--8:19--8:21--8:22--8:22--8:22-
Sunset--4:00--4:00--4:00--4:00--4:01--4:01--4:01
rain showers
part cloud
cloud
cloud
light rain
light rain
heavy rain
heavy rain
light rain
light rain
cloud
clear
part cloud
cloud
light rain
heavy rain
light rain
cloud
light rain
light rain
rain showers
Rain (mm)
1---35331243----2205-411
Temp. °C991010101111109888799101012121110
Feels °C (?)422222285466521251200
  • 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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Latest Updates

Eyeball surf reportRecent Eyeball Surf Reports for Wales - Mid

  1. West Coast Surf: ‘Porth Neigwl: It is likely to still b e a bit out of control as there hasn't been any sustained offshore wind to tidy it..’

    Hells Mouth (Porth Neigwl), 38 km away
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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.


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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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