Terra Mar Surf Break

Lat Long: 33.20° N 117.39° W

Terra Mar Surf Forecast and Surf Report

Issued: 10 pm 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Terra Mar sea temperature is
22.2° C
2.3° 

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 18 Aug 2026:

  • Best quality surf: Monday 24 Aug, 5AM (local time) - 2.5ft (0.8m), 14s period, SSW swell with glassy winds.
  • Most powerful swell: Tuesday 18 Aug, 8AM (local time) - 3ft (0.9m), 16s period, SSW swell with 402 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 18 Aug, 8AM (local time) - 3ft (0.9m), 16s 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 (Aug 18) at 8AM. The primary swell is predicted to be 0.9m and 16s period with a secondary swell of 0.7m 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 0.9m 16s and forecast to arrive on Tuesday (Aug 18) at 8AM. Winds are predicted to be glassy at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Tue 18th Aug)3ft (0.9m) 16s
Best Surf 5AM (Mon 24th Aug)2.5ft (0.8m) 14s
Most Powerful 8AM (Tue 18th Aug)3ft (0.9m) 16s

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


The Lowdown

Alright folks, Rusty here. Let’s take a good, hard look at what’s coming down the line for Terra Mar. To be straight with you, the next 16 days are a bit of a grind. We’re looking at a long stretch of small, marginal surf, and it’s going to take a week and a half before we see anything that even gets the heart rate up.

The first few days are a tough watch. From Tuesday the 18th right through to the end of the month, we’ve got a persistent run of weak, onshore wind conditions. The swell is tiny, mostly hanging around 1 ft to 3 ft, and it’s all coming from the SSW. The period is decent at times, hitting 16–17 seconds, which is a proper long-period groundswell, but that energy is just not showing up. The combined energy is weak, hovering between 181 and 451 – it’s barely a ripple. The wind is a killer here, coming from the WSW and SW, mostly onshore or cross-onshore, keeping the surface messy. The water temp is about average for this time of year. For a beginner-friendly point break like Terra Mar, this is a flat spell. There’s really nothing to recommend here.

You’ll be waiting a full 11 days before there’s a glimmer of hope. The best window of the whole outlook comes on Saturday, the 29th of August. The morning session has a combined swell energy of 750 (moderate), with a 3 ft SSW swell pushing in at a 17-second period. That’s a proper groundswell. The wind is forecast to be light and onshore, which is far from perfect, but it’s the best we’re going to get. The wave comment calls it marginal, but for this stretch, it’s the standout. The afternoon picks up a little more size to 4 ft, and the energy bumps to 838, but the wind shifts to a cross-onshore, making it a bit messier. For a consistent point, this is the day to be checking the tide.

Sunday the 30th keeps the size at 4 ft from the SSW, but the energy drops off a touch. The morning is a cross-on mess, but the afternoon has light onshore winds and a 15-second period. It’s still not clean, but it’s ridable if you’re desperate. After that, it fades back into the small stuff for the first couple of days of September.

Honestly, the whole 16-day run is a test of patience. The best of a bad bunch is the last weekend of August, but even then, don’t expect any magic. Terra Mar is a consistent spot, so it tends not to stay this poor for long, but this is a blank run.

Stay keen, check the tides, and don’t drive too far for this one.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 25°C on Wed morning, min 20°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 27°C on Sun morning, min 22°C on Thu night). Wind will be generally light.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
0
2
1
1
2
1
1
2
0
0
2
0
1
2
0
1
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
0.7
SSW
16
0.7
SSW
17
0.8
SSW
15
0.9
SSW
16
0.9
SSW
16
0.8
SSW
15
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
0.7
SSW
13
0.6
SSW
13
0.6
SSW
13
0.4
SW
18
0.6
SSW
15
0.7
SSW
14
0.4
SW
19
0.5
SW
18
0.6
SW
18
Wave Graph
Metric surfscale
Energy kJ
257
232
243
272
377
387
249
236
236
226
156
137
135
92
167
218
127
155
213
Wind (km/h)
5
WNW
10
WSW
10
W
0
WNW
10
WSW
10
WSW
5
SSE
10
SW
10
SW
5
SW
10
SW
10
WSW
0
SE
10
WSW
10
WSW
0
NW
10
WSW
10
SW
5
W
Wind State
glassy
on
cross-on
glassy
on
on
glassy
on
on
glassy
on
on
glassy
cross-on
on
glassy
cross-on
on
cross-on
High Tide
1:36AM1.37m
1:41PM1.88m
3:24AM1.21m
2:34PM1.82m
3:47PM1.80m
8:25AM1.36m
5:06PM1.83m
8:27AM1.43m
6:08PM1.91m
8:41AM1.49m
6:56PM2.01m
Low Tide
6:47AM0.96m
9:16PM0.81m
7:02AM1.12m
10:59PM0.76m
00:19AM0.65m
10:09AM1.35m
1:10AM0.54m
11:57AM1.32m
1:47AM0.43m
12:51PM1.24m
2:18AM0.34m
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:13
6:15
6:16
6:16
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:31
7:30
7:29
7:28
7:27
7:25
 mm
Temp °C
21
24
24
22
25
25
23
24
25
23
25
25
24
26
26
24
27
26
23
Feels °C
23
25
24
23
26
25
25
25
26
25
25
25
26
26
26
26
26
25
24
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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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