
Surf Forecasts:
Terra Mar surf forecast from 13 Sep 2026:
- Best quality surf: Thursday 17 Sep, 8AM (local time) - 2.5ft (0.8m), 16s period, SSW swell with glassy winds.
- Most powerful swell: Thursday 17 Sep, 5AM (local time) - 3ft (0.9m), 16s period, SSW swell with 402 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 11PM (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 11PM. The primary swell is predicted to be 0.6m and 14s period with a secondary swell of 0.4m and 5s. 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 Thursday (Sep 17) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sat 12th Sep) | 2ft (0.6m) 14s |
| Best Surf | 8AM (Thu 17th Sep) | 2.5ft (0.8m) 16s |
| Most Powerful | 5AM (Thu 17th Sep) | 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 long, hard look at what Terra Mar has in store for us over the next couple of weeks. Gotta be straight with you – it's a bit of a frustrating stretch.
The overall pattern is small and sloppy. We're looking at a lot of cross-onshore wind and inconsistent energy, which means a lot of time staring at choppy, bumpy lines. The water is sitting at 73°, which is a whopping 5° warmer than usual for this time of year – that’s very unusual, so at least the trunk will be happy even if the surf isn't.
The first couple of days are a write-off. Saturday the 12th and Sunday the 13th offer tiny 1ft to 2ft swell with poor conditions. Not worth paddling out. Monday the 14th through Tuesday the 15th doesn't get any better. We're stuck with a light breeze and inconsistent, poor-quality waves.
There is a bit of a pulse building mid-week, but the wind stays messy. Wednesday the 16th and Thursday the 17th see the swell bump up to 3ft from the SSW, but it's paired with a cross-onshore breeze. The energy starts to climb, hitting 425 (moderate wave energy) on Wednesday morning, but it’s not translating into quality. By Friday the 18th and into the weekend of the 19th and 20th, the combined energy gets into the 500s (moderate to strong wave energy), with the swell holding around 3ft to 3ft. Still, the wind remains a problem, mostly cross-onshore, keeping the surface chopped up.
Now, for a true standout, you have to look toward the end of the first week and into the second. Monday the 21st afternoon looks like the best on offer across the whole forecast. We get a 3ft SSW swell, with a long 17-second period, and the wind finally goes offshore from the SW at a light 6 mph. The combined energy hits 622 (strong wave energy). That is the session to target. Terra Mar is a point break, and that long-period groundswell will wrap in nicely, offering clean, lined-up waves. The light offshore wind is a massive positive. Keep in mind, it’s a beginner-friendly spot, but with that size, it'll be fine for all levels.
After that little peak, we slide back into mediocrity. Tuesday the 22nd and Wednesday the 23rd see the wind swing back cross-onshore, dropping quality again. The last few days of the forecast from Thursday the 24th to Sunday the 27th are more of the same: small 2ft to 3ft SSW swell, mostly cross-onshore winds, and poor to marginal conditions. The energy fades back to the 200s and 300s. It’s a long, flat run to end the outlook.
So, to wrap it up: it's a frustrating forecast with a lot of small, windy days. Your best bet, and the only true standout, is Monday the 21st afternoon at Terra Mar. Get on it if you can. The rest of the time, keep your expectations low.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Sat afternoon, min 19°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Fri morning, min 19°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Sat 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | ||||||||||||||||||||
Wave Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 19 | W 10 | W 8 | SW 18 | SW 17 | SW 16 | SSW 20 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SW 19 | SW 19 | SW 19 |
Wave Graph | ||||||||||||||||||||
164 | 160 | 89 | 131 | 188 | 116 | 150 | 190 | 161 | 127 | 114 | 386 | 347 | 291 | 196 | 246 | 242 | 303 | 303 | 234 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross-on | on | cross-on | cross-on | cross-on | cross-on | on | on | glassy | on | cross-on | glassy | cross-on | cross-on | cross | cross-on | cross-on | glassy |
High Tide | 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 | 1:13PM1.80m | 2:35PM1.72m | |||||||||
Low Tide | 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 | 5:04AM1.22m | 10:05PM0.73m | 11:35PM0.67m | ||||||||
— | — | 6:31 | — | — | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | |
7:00 | — | — | 6:59 | — | — | 6:57 | — | — | 6:55 | — | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 21 | 23 | 23 | 21 | 23 | 22 | 20 | 22 | 22 | 20 | 22 | 22 | 20 | 22 | 22 | 21 | 24 | 24 | 22 |
Feels °C | 24 | 23 | 23 | 23 | 23 | 22 | 21 | 21 | 22 | 22 | 22 | 23 | 22 | 21 | 22 | 21 | 22 | 24 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | W 7 | W 7 | W 10 | W 8 | W 7 | W 9 | W 9 | W 9 | SW 16 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SW 19 | W 6 |
164 | 160 | 56 | 58 | 188 | 116 | 52 | 79 | 56 | 55 | 88 | 386 | 347 | 291 | 196 | 246 | 242 | 183 | 303 | 32 | |
Swell 2 Height (m) Direction Period (s) | W 6 | W 5 | SW 14 | SW 13 | SW 13 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | W 8 | W 6 | W 6 | SSW 13 | S 12 | S 12 | S 11 | SW 19 | SSW 14 | SSW 13 |
16 | 14 | 89 | 87 | 85 | 108 | 150 | 190 | 161 | 122 | 33 | 11 | 9 | 63 | 72 | 97 | 59 | 303 | 104 | 139 | |
Swell 3 Height (m) Direction Period (s) | S 10 | S 9 | SW 19 | SW 19 | SW 19 | SW 13 | SW 13 | SW 12 | SW 12 | SSW 20 | SSW 18 | S 9 | S 9 | SSW 9 | SW 21 | SW 21 | SW 21 | S 11 | S 11 | SW 19 |
29 | 14 | 58 | 131 | 129 | 44 | 40 | 38 | 37 | 127 | 114 | 28 | 27 | 28 | 160 | 162 | 156 | 58 | 58 | 234 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 5 | W 3 | W 4 | W 5 | W 5 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 3 | 9 | 7 | 17 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 61 | 0 | 61 | 61 | 1 | 103 | 115 | 1 | 40 | 61 | 0 | 61 | 60 | 0 | 60 | 61 | 40 | 60 | 61 | 0 |
Best forecast wave conditions in San Diego County | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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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.










