Terra Mar Surf Break

Lat Long: 33.20° N 117.39° W

Terra Mar Surf Forecast and Surf Report

Issued: 10 am 08 Sep 2026 (local time)

Forecast update in  hr  min

Today's Terra Mar sea temperature is
22.6°C
2.5° 

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 8 Sep 2026:

  • Best quality surf: Tuesday 8 Sep, 8PM (local time) - 3.5ft (1.1m), 10s period, SSW swell with glassy winds.
  • Most powerful swell: Thursday 10 Sep, 8AM (local time) - 3.5ft (1.0m), 17s period, SW swell with 560 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 8 Sep, 8PM (local time) - 3.5ft (1.1m), 10s period with SSW 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 Tuesday (Sep 08) at 8PM. The primary swell is predicted to be 1.1m and 10s period with a secondary swell of 0.5m and 13s. Another secondary swell of 0.7m and 4s is also forecast. 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 17s and forecast to arrive on Thursday (Sep 10) at 8AM. 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 (Tue 8th Sep)3.5ft (1.1m) 10s
Best Surf 8PM (Tue 8th Sep)3.5ft (1.1m) 10s
Most Powerful 8AM (Thu 10th Sep)3.5ft (1.0m) 17s

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


The Lowdown

Alright, Rusty here. Let’s have a look at what’s shaping up for Terra Mar over the next couple of weeks.

To be honest, mate, the outlook is a bit of a mixed bag. We’ve got a lot of small, clean-looking swell windows, but the wave quality is mostly marginal or poor. The water is a real standout though – it’s sitting at 73°F on the Tuesday morning, which is much warmer than normal for this time of year, so you won’t need a thick suit.

The first sniff of surf is on Tuesday morning, September 8th. Swell is 4 ft from the SSW, with a period of 10 seconds and a moderate combined energy of 539. The wind is a westerly cross-shore at 9 mph, which is a gentle breeze. It’s not perfect, but it’s surfable. The report says “marginal surf forecast,” so don’t expect magic, but it’s the best we’ve got early on.

Tuesday afternoon drops off quickly – wind picks up to 19 mph from the same direction, making it lumpy and choppy. Score is zero. Wednesday and Thursday are small – 2 ft to 3 ft – with a really long period groundswell from the SSW/SW. The period hits 16 to 17 seconds on Wednesday, which is proper long-period energy. This kind of swell is best at a point break like Terra Mar, but the wind is cross-onshore, so it’s not clean. Still, the morning wind is light, so if you’re keen, you might get a few lined-up waves before the breeze picks up. Combined energy is moderate (375-634).

Friday through to the end of the first week (September 12-14) is mostly poor. Swell drops to 2 ft-2 ft, periods are shorter, and the wind is mostly cross-onshore or onshore. The Saturday morning (September 12th) has a 2 ft swell from the SW with a 14-second period, but the wind is onshore at 9 mph. Not worth a paddle.

Then there’s a gap. From around September 14th afternoon through to September 17th, the swell is tiny (1 ft-3 ft) and the wind is mostly light onshore. A few 18-20 second periods pop up, but with such small waves, it’s only for the most patient.

The standout opportunity comes on Monday, September 21st. Swell holds at 3 ft from the SW, with a 16-17 second period, and combined energy is 632 – the highest we see in the whole period. The wind is from the west at 6 mph, which is a light cross-onshore. The report says “marginal,” but given the long period, this is the best chance for some clean, lined-up waves at Terra Mar. The light wind means it’ll be smoother than the rest of the week.

After that, the last couple of days (September 22-23) are similar – 3 ft to 3 ft, with light winds, but the energy drops a bit and the quality is still “marginal” or “poor.” It’s consistent, but not a classic.

Overall, the best bet is the Monday morning, September 21st. It’s the biggest and cleanest window we’ve got. For the rest, keep your expectations low – the water is warm, but the waves are small and mostly messy.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Tue morning. Warm (max 29°C on Tue afternoon, min 21°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

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

Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
0
1
1
1
2
1
1
1
0
0
0
0
0
1
0
1
1
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SSW
14
1
SSW
10
0.9
SSW
10
0.6
SSW
16
0.7
SW
16
0.9
SW
17
1
SW
17
1
SW
16
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
0.6
SW
14
0.5
SW
13
0.9
W
10
1
W
8
0.5
SW
18
0.6
SW
17
Wave Graph
Metric surfscale
Energy kJ
246
194
145
173
278
419
547
502
483
471
360
309
211
164
160
147
87
156
129
150
190
Wind (km/h)
15
WNW
25
WNW
10
NW
10
WSW
10
W
10
S
10
SSW
15
SSW
10
SSE
15
S
15
S
10
S
15
SSW
10
SW
5
S
15
SSW
10
SW
10
SSE
15
SSW
10
S
10
SSE
Wind State
cross
cross
cross
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
on
on
cross
cross-on
cross-on
cross-on
High Tide
8:37AM1.76m
7:51PM2.30m
9:05AM1.88m
8:37PM2.28m
9:33AM1.98m
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
Low Tide
1:47PM0.90m
2:43AM0.10m
2:34PM0.74m
3:16AM0.16m
3:18PM0.61m
3:46AM0.28m
4:01PM0.53m
4:14AM0.43m
4:43PM0.49m
4:40AM0.61m
5:27PM0.50m
5:04AM0.79m
6:14PM0.56m
rain showers
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:28
6:28
6:28
6:30
6:30
6:31
6:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:05
7:04
7:02
7:00
7:00
6:59
6:57
 mm
2
Temp °C
27
29
27
27
27
24
25
25
22
23
23
21
22
22
20
22
22
20
22
22
20
Feels °C
27
27
28
28
27
26
26
25
24
23
23
22
22
22
22
22
22
22
22
21
21
  • Map Icons:
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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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