Seaside Reef Surf Break

Lat Long: 33.04° N 117.30° W

Seaside Reef Surf Forecast and Surf Report

Issued: 4 pm 14 Sep 2026 (local time)

Forecast update in  hr  min

Today's Seaside Reef sea temperature is
22.9°C
3.0° 

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


Seaside Reef surf forecast from 15 Sep 2026:

  • Best quality surf: Wednesday 16 Sep, 8AM (local time) - 3ft (0.9m), 17s period, SSW swell with glassy winds.
  • Most powerful swell: Monday 21 Sep, 2PM (local time) - 3.5ft (1.1m), 17s period, SW swell with 625 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 15 Sep, 5AM (local time) - 2ft (0.6m), 17s period with SW swell.

Best Forecast Surf Conditions for Seaside Reef this week:

The surf forecast for Seaside Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 15) at 5AM. The primary swell is predicted to be 0.6m and 17s period with a secondary swell of 0.7m and 9s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Seaside Reef in the next 16 days are 1.1m 17s and forecast to arrive on Monday (Sep 21) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Tue 15th Sep)2ft (0.6m) 17s
Best Surf 8AM (Wed 16th Sep)3ft (0.9m) 17s
Most Powerful 2PM (Mon 21st Sep)3.5ft (1.1m) 17s

Table - best surf conditions forecast for Seaside Reef over the next 16 days.


The Lowdown

G'day, Rusty here. Look, I'm gonna level with you straight up – the next couple of weeks at Seaside Reef are pretty average. The first few days are a write-off, and even when things get a little better, it never really fires. We've got a long, slow grind ahead before we see anything half decent.

The water's at 73°, which is a whopping 5° warmer than normal. That's very unusual for this time of year. Good for boardies, but it won't help the waves.

The first few days are all about small, blown-out swells with cross-onshore winds. Monday afternoon the 14th through to Tuesday the 15th is a total no-go. Small at 2 ft from the SW, short period, and choppy.

Wednesday morning the 16th shows a slight bump to 3 ft, but it's still messy. The combined energy is moderate (520), but the cross-onshore wind kills it. We get a bit of a cleaner window from Wednesday afternoon the 16th through Thursday the 17th as the wind goes offshore, but we're still looking at tiny 3 ft SSW swell. Still nothing to get excited about.

Friday the 18th through Sunday the 20th is where it gets a bit more interesting for the patient surfer. Friday morning has 2 ft SW swell, but the period jumps to 19 seconds. That's a very long period groundswell. The energy is moderate (506), and importantly, the wind is light and offshore. This is the highlight of the whole run. For a reef break that likes a west in the swell, a long period SW groundswell with clean offshore winds is about as good as it gets here. The sets will be few and far between, but if you're on it, the shape could be great. Saturday the 19th is similar, with 3 ft SW swell and that long 18-second period, again with offshore winds and moderate energy (552). Sunday the 20th sees the swell nudge up to 3 ft, but the wind swings cross-onshore, making it choppier.

Early the next week, Monday the 21st, we have 3 ft to 4 ft SW swell, but the cross-onshore wind comes back. The energy kicks up to strong levels (730), but the quality just isn't there for the surfer. If you're into kite surfing, this cross-onshore wind with moderate sized swell might be your jam, but for a paddle surfer, it's a pass.

From Tuesday the 22nd through to the end of the forecast period on the 29th, it's all pretty grim. Wind is mostly offshore, but the swell drops back to 2 ft to 3 ft with periods fading from 16 seconds down to 13 seconds. The energy drops to the lower moderate range or even weak. It's just small and weak.

If I had to pick the one true standout, it's Friday morning the 18th of September. That long period groundswell lining up with a clean offshore wind at Seaside Reef is the closest we get to something special. It'll be inconsistent, because this break rarely pumps, but the quality should be there. Saturday the 19th is a close second.

Seaside Reef is an exposed reef for advanced surfers only, and the crowds here are often. Just be ready to share it, even when it's small. This has been a bit of a quiet run, but it won't stay poor forever.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 22°C on Mon afternoon, min 18°C on Wed night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 22°C on Fri afternoon, min 19°C on Thu night). Wind will be generally light.

Mon
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
0
0
2
1
0
2
1
0
2
2
0
3
2
1
2
1
1
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
SW
18
0.6
SW
17
0.6
SW
16
0.6
SW
16
0.6
SW
16
0.9
SSW
17
0.8
SSW
16
0.8
SSW
16
0.8
SSW
16
0.8
SSW
15
1
SSW
15
0.6
SW
19
0.6
SW
19
0.6
SW
19
0.8
SW
18
0.8
SW
18
0.8
SW
18
0.9
SW
18
0.9
SW
18
0.9
SW
17
Wave Graph
Metric surfscale
Energy kJ
192
188
163
157
157
475
339
291
284
242
405
303
303
299
379
375
375
522
522
499
Wind (km/h)
10
SW
10
S
15
SSW
10
SW
5
SSW
10
SW
10
W
5
NW
10
W
15
W
5
NNW
10
W
15
W
5
NW
10
WSW
10
W
5
WSW
15
SW
15
WSW
5
SSW
Wind State
cross-on
cross
cross-on
cross-on
glassy
cross-on
on
glassy
on
on
cross-on
on
on
glassy
on
on
glassy
cross-on
cross-on
glassy
High Tide
00:17AM1.49m
11:52AM1.99m
1:21AM1.32m
12:26PM1.89m
3:50AM1.22m
1:12PM1.79m
2:34PM1.72m
8:13AM1.44m
4:22PM1.72m
7:53AM1.50m
5:36PM1.79m
Low Tide
6:13PM0.56m
5:23AM0.96m
7:07PM0.64m
5:35AM1.11m
8:21PM0.72m
5:02AM1.22m
10:05PM0.74m
11:35PM0.67m
10:10AM1.43m
00:29AM0.57m
11:54AM1.34m
1:05AM0.49m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:31
6:33
6:33
6:33
6:35
6:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:57
6:54
6:53
6:52
6:51
6:50
6:49
 mm
Temp °C
22
20
22
22
20
21
21
19
21
21
20
21
22
20
22
22
21
22
22
20
Feels °C
21
21
22
21
21
21
20
19
21
20
21
21
21
20
22
22
22
22
22
21
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  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Seaside Reef Surf forecast

The above surf forecast table for Seaside Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Seaside Reef can be found by selecting the local surf guide option on the grey menu. Our Seaside Reef 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 (Seaside Reef) 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 Seaside Reef 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.

Seaside Reef is 1 km (1 miles) from the city of Encinitas. If you plan a vacation in San Diego County, look for hotels and other accommodation in Encinitas. Encinitas has rooms for a wide range of budgets as well as car hire and transport links.

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