Surf Forecasts:
Terra Mar surf forecast from 7 Sep 2026:
- Best quality surf: Thursday 10 Sep, 2AM (local time) - 3ft (0.9m), 17s period, SW swell with glassy winds.
- Most powerful swell: Monday 7 Sep, 2PM (local time) - 6ft (1.8m), 12s period, SSW swell with 962 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 11PM (local time) - 3.5ft (1.0m), 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 11PM. The primary swell is predicted to be 1.0m and 10s period with a secondary swell of 0.5m and 13s. Another secondary swell of 0.6m 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 1.8m 12s and forecast to arrive on Monday (Sep 07) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Tue 8th Sep) | 3.5ft (1.0m) 10s |
| Best Surf | 2AM (Thu 10th Sep) | 3ft (0.9m) 17s |
| Most Powerful | 2PM (Mon 7th Sep) | 6ft (1.8m) 12s |
Table - best surf conditions forecast for Terra Mar over the next 16 days.
The Lowdown
Alright, folks, let’s get into this one. The next 16 days are shaping up to be a slow burn, with a rough start and a flicker of hope later on.
The water’s running at 74°, which is a massive 5° warmer than normal for this time of year — that’s a real anomaly, feels like a warm bath.
We kick off on Monday the 7th with a bit of juice. Terra Mar has a 6ft SSW swell with a 13-second period, packing a combined energy of (1098). That’s the most push we’ll see, but the wind is a cross-on from the WNW at 6 mph, putting a chop on it. The morning is the only window, and it’s still marginal. The afternoon gets worse with the wind cranking to 16 mph.
From Tuesday the 8th through the weekend, the swell just fades. We’re talking 4ft down to 2ft, and the wind stays cross-on. It’s all pretty flat and sloppy. Not worth paddling out.
The real standout is further out. From Thursday the 17th through Monday the 21st, the swell direction holds steady from the SSW and SW, and the period stretches out to 17 to 19 seconds. That’s a long-period groundswell, which means better shape and more energy, even if the size is small. The best call is Monday the 21st morning: a 3ft SW swell at 18 seconds, combined energy of (559). The wind is light and cross-on, but with those long intervals, it’s going to be the cleanest and most fun we’ll see. It’s a small wave, perfect for a longboard.
After that, it’s back to tiny, messy conditions through Tuesday the 22nd.
Best bet: Monday the 21st morning for the cleanest, longest lines. It’s small, but it’s the only real window.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Mon afternoon, min 23°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Thu morning, min 19°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||
AM | 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) | SSW 13 | SSW 12 | SSW 11 | SSW 14 | SSW 10 | SSW 13 | SW 16 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 19 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1025 | 916 | 615 | 246 | 190 | 151 | 214 | 278 | 419 | 553 | 502 | 483 | 400 | 365 | 309 | 214 | 164 | 160 | 147 | 87 | 179 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | cross-on | glassy | cross-on | on | glassy | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | glassy |
High Tide | 8:09AM1.64m | 7:00PM2.24m | 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 | |||||||
Low Tide | 12:55PM1.08m | 2:07AM0.11m | 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 | ||||||||
 |  |  | |  | | | |  | | | | | | | | | | | | | |
 | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — | 6:30 | — | — | 6:31 | — | — |
 | — | 7:07 | — | — | 7:05 | — | — | 7:04 | — | — | 7:02 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 28 | 25 | 27 | 27 | 25 | 28 | 26 | 24 | 25 | 25 | 23 | 24 | 23 | 22 | 22 | 22 | 20 | 22 | 22 | 20 |
Feels °C | 28 | 28 | 26 | 27 | 26 | 26 | 28 | 25 | 26 | 25 | 25 | 24 | 24 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 12 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | SSW 9 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | W 7 | W 7 | W 7 | W 7 | W 9 |
| kJ | 1025 | 916 | 615 | 246 | 190 | 142 | 67 | 278 | 419 | 553 | 502 | 483 | 400 | 365 | 309 | 214 | 42 | 58 | 82 | 69 | 117 |
Swell 2 Height (m) Direction Period (s) | SW 19 | SW 19 | W 4 | SSW 14 | SSW 13 | SSW 13 | SW 16 | SSW 12 | W 5 | W 6 | W 6 | W 7 | W 7 | W 7 | W 6 | W 6 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 |
| kJ | 58 | 58 | 5 | 207 | 154 | 151 | 214 | 86 | 12 | 16 | 15 | 33 | 44 | 31 | 28 | 38 | 164 | 160 | 147 | 87 | 84 |
Swell 3 Height (m) Direction Period (s) | WSW 10 | — | SW 18 | SW 18 | SW 18 | SW 16 | SSW 13 | SSW 8 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SW 6 | S 9 | WSW 14 | S 9 | S 9 | SW 19 | SW 19 | SW 19 |
| kJ | 9 | — | 51 | 80 | 112 | 130 | 135 | 45 | 82 | 47 | 46 | 23 | 22 | 6 | 15 | 38 | 14 | 13 | 59 | 58 | 179 |
Wind waves Height (m) Direction Period (s) | WNW 4 | W 4 | WNW 4 | W 4 | W 3 | WNW 4 | — | W 4 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 6 | 7 | 9 | 3 | 6 | 11 | — | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 40 | 61 | 40 | 61 | 44 | 0 | 40 | 40 | 0 | 103 | 39 | 39 | 103 | 39 | 1 | 103 | 61 | 1 | 39 | 178 | 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.
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