Terra Mar Surf Break

Lat Long: 33.20° N 117.39° W

Terra Mar Surf Forecast and Surf Report

Issued: 10 pm 10 Sep 2026 (local time)

Forecast update in  hr  min

Today's Terra Mar sea temperature is
21.6°C
1.7° 

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


Terra Mar surf forecast from 11 Sep 2026:

  • Best quality surf: Thursday 17 Sep, 5AM (local time) - 3ft (0.9m), 16s period, SSW swell with glassy winds.
  • Most powerful swell: Friday 11 Sep, 5AM (local time) - 3.5ft (1.0m), 16s period, SW swell with 483 kJ wave energy.
  • Next surfable swell (1★+): Saturday 12 Sep, 8PM (local time) - 2ft (0.6m), 14s period with SW swell.

Best Forecast Surf Conditions for Terra Mar this week:

The surf forecast for Terra Mar over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 12) at 8PM. The primary swell is predicted to be 0.6m and 14s period with a secondary swell of 0.6m and 6s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Terra Mar in the next 16 days are 1.0m 16s and forecast to arrive on Friday (Sep 11) at 5AM. 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+) 8PM (Sat 12th Sep)2ft (0.6m) 14s
Best Surf 5AM (Thu 17th Sep)3ft (0.9m) 16s
Most Powerful 5AM (Fri 11th Sep)3.5ft (1.0m) 16s

Table - best surf conditions forecast for Terra Mar over the next 16 days.


The Lowdown

Alright, mates, let’s get into it. This is Rusty.

Honestly, the next couple of weeks at Terra Mar are looking pretty flat and disappointing. The whole 16-day window is a bit of a washout if you’re chasing decent waves. We’ve got a long stretch here with no real standout surf, just small, weak swells and less-than-ideal winds making things messy.

The first surf we can even talk about is this Thursday afternoon, September 10th. A long-period groundswell from the southwest is pushing in, about 3ft, with a period of 16 seconds. Now, that long period means the waves will have some push, but at a beach break, it can make things close out. The combined swell energy is sitting at 558 (moderate wave energy). The water is 71°, which is a touch warmer than usual for this time of year, by 3°. The problem is the wind is a light cross-onshore from the SSW at 6 mph, which is putting a bit of a crinkle on the surface. It’s not terrible, but it’s not glassy. It’s marginal at best. For a beginner-friendly point break like this, those small, gutless waves with cross-onshore wind aren’t going to give you much.

Friday the 11th and Saturday the 12th are even worse, with waves dropping to 3ft and 2ft, and the winds getting stronger or more onshore. The combined energy plummets to 408 and then 286 (weak to moderate). Choppy, messy, not worth paddling out for. Honestly, the whole setup looks more interesting for kite surfing than paddle surfing through that stretch.

We then hit a real dead zone. From Sunday the 13th all the way through to Wednesday the 16th, the swell is tiny – 1ft to 3ft – with weak combined energy values (240 to 429). The wind is mostly onshore or cross-onshore. The waves are inconsistent and lack any real power. It’s a big gap of nothing.

The best of a bad bunch starts to appear around the 19th of September. On Saturday the 19th afternoon, we see a little pulse of 3ft swell from the southwest with an 18-second period. The combined energy bumps up to 512 (moderate), and the wind is light and onshore. That’s about the cleanest we’ll see, but it’s still small. Sunday the 20th afternoon shows a bit more push with the energy hitting 690 and waves at 3ft, but again, onshore wind. By Monday the 21st afternoon, we’re seeing 4ft from the SW with 17-second period and the combined energy hitting 729, but the wind is a gentle cross-onshore from the west at 9 mph, which chops it up. It’s a tease.

That’s the pick of the second week, really – the 21st of September. The swell size is just about big enough for a beginner spot, but the wind and chop kill the quality. If we had offshore wind, it would be a different story. We don’t. So, for a standout, I’m struggling to find one. The best on offer is that long-period energy from the SW, especially on the 21st, but with the conditions, it’s more of a “maybe if you’re desperate” than a “go get it” call.

Terra Mar usually has its days, but this forecast is a total dud. A blank run like this is more normal for the area when the swell window isn't lining up. Keep an eye on it, things can change, but for the next 16 days, I’d save your energy.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 24°C on Thu night, min 21°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 23°C on Mon morning, min 19°C on Tue night). Wind will be generally light.

Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
0
0
0
0
2
0
0
1
0
0
1
0
0
2
0
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
SW
16
1
SW
16
0.9
SW
15
0.9
SW
15
0.7
SW
14
0.6
SW
14
0.6
SW
14
1
W
7
0.4
SW
19
0.9
W
10
1
W
8
0.5
SW
18
0.6
SW
17
0.6
SW
16
0.4
SSW
20
0.4
SSW
18
0.8
SSW
17
0.8
SSW
16
0.8
SSW
16
Wave Graph
Metric surfscale
Energy kJ
483
471
360
309
211
164
160
107
130
175
116
150
190
161
127
114
386
347
291
Wind (km/h)
10
S
15
S
15
S
10
SSE
15
SSW
10
WSW
5
S
15
S
10
SW
10
SSE
15
S
15
SSW
5
SSE
10
SSW
15
SW
5
S
10
SW
10
WSW
0
WSW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
on
glassy
cross-on
on
cross-on
cross-on
cross-on
cross
on
on
glassy
on
on
glassy
High Tide
9:21PM2.20m
10:01AM2.05m
10:04PM2.06m
10:29AM2.09m
10:46PM1.88m
10:56AM2.10m
11:30PM1.68m
11:24AM2.06m
00:18AM1.49m
11:53AM1.99m
1:22AM1.32m
12:27PM1.90m
3:52AM1.22m
Low Tide
3:46AM0.28m
4:01PM0.53m
4:14AM0.43m
4:43PM0.49m
4:40AM0.61m
5:27PM0.50m
5:04AM0.79m
6:14PM0.56m
5:24AM0.96m
7:08PM0.64m
5:37AM1.11m
8:22PM0.72m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:30
6:30
6:31
6:31
6:31
6:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:00
7:00
6:59
6:57
6:55
6:53
 mm
Temp °C
24
24
24
22
23
24
22
24
23
21
23
23
21
22
22
20
21
22
20
Feels °C
26
25
24
24
24
25
25
24
23
23
22
22
22
22
22
21
21
22
21
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Terra Mar Surf forecast

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

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

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