Jeffs Left Surf Break

Lat Long: 52.61° N 4.13° W

Jeffs Left Surf Forecast and Surf Report

Issued: 12 am 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's Jeffs Left sea temperature is
19.5° C
3.7° 

Jeffs Left surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Jeffs Left surf forecast from 12 Aug 2026:

  • Most powerful swell: Tuesday 18 Aug, 4PM (local time) - 4.5ft (1.3m), 6s period, WSW swell with 115 kJ wave energy.

Best Forecast Surf Conditions for Jeffs Left this week:

The most powerful waves expected at Jeffs Left in the next 16 days are 1.3m 6s and forecast to arrive on Tuesday (Aug 18) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 4s period and expected on Monday (Aug 17) at 1AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 4PM (Tue 18th Aug)4.5ft (1.3m) 6s

Table - best surf conditions forecast for Jeffs Left over the next 16 days.


Short Range Forecast

Mostly dry. Warm (max 28°C on Wed afternoon, min 17°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 5mm), mostly falling on Mon morning. Very mild (max 17°C on Sat afternoon, min 12°C on Sat night). Winds decreasing (fresh winds from the NW on Sat afternoon, calm by Sun night).

Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.2
W
10
0.2
WSW
10
0.3
WSW
9
0.3
WSW
9
0.2
WSW
9
0.2
WSW
9
0.4
WSW
5
0.4
NW
4
0.5
NNW
4
0.8
NNW
4
1.2
NNW
5
0.6
NNW
4
0.4
NW
4
0.7
NNW
4
0.1
W
7
0.1
W
7
0.1
W
7
0.9
WSW
5
1.1
WSW
6
1.3
WSW
6
1.3
W
5
Wave Graph
Metric surfscale
Energy kJ
8
9
16
16
9
8
7
4
9
26
67
14
4
13
1
1
1
35
77
115
81
Wind (km/h)
10
ESE
10
NW
5
SE
5
W
5
W
15
SSE
10
WNW
20
NNW
20
N
25
NNW
35
NW
10
NNE
10
NNW
20
NW
5
E
10
SSE
10
W
5
NW
10
SSW
25
SW
30
W
Wind State
cross-off
cross-on
cross-off
glassy
on
cross-off
on
cross-on
cross
cross
cross-on
cross-off
cross
cross-on
glassy
cross-off
on
glassy
cross-on
cross-on
on
High Tide
8:21AM4.07m
8:42PM4.58m
9:07AM4.25m
9:26PM4.78m
9:50AM4.32m
10:08PM4.84m
10:31AM4.29m
10:49PM4.74m
11:11AM4.17m
11:29PM4.49m
11:50AM3.96m
00:09AM4.13m
12:29PM3.69m
00:50AM3.72m
Low Tide
3:36PM0.32m
4:06AM-0.06m
4:17PM0.16m
4:48AM-0.15m
4:56PM0.12m
5:27AM-0.10m
5:33PM0.19m
6:04AM0.09m
6:08PM0.36m
6:38AM0.37m
6:41PM0.60m
7:10AM0.70m
7:13PM0.88m
part cloud
clear
clear
part cloud
cloud
part cloud
part cloud
cloud
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
light rain
part cloud
part cloud
cloud
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:54
5:56
5:56
5:58
6:01
6:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:49
8:46
8:45
8:43
8:40
8:38
8:37
 mm
5
1
1
Temp °C
26
28
24
22
22
18
18
18
16
16
17
14
17
17
15
14
15
15
18
19
18
Feels °C
24
26
23
22
22
19
19
16
13
10
10
10
14
15
14
12
14
14
17
16
15
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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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