Surf Forecasts:
Terra Mar surf forecast from 13 Aug 2026:
- Best quality surf: Thursday 13 Aug, 11PM (local time) - 3ft (0.9m), 16s period, SW swell with glassy winds.
- Most powerful swell: Saturday 15 Aug, 2AM (local time) - 4ft (1.2m), 17s period, SSW swell with 807 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 11PM (local time) - 3ft (0.9m), 16s 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 Thursday (Aug 13) at 11PM. The primary swell is predicted to be 0.9m and 16s period with a secondary swell of 0.4m and 11s. 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 1.2m 17s and forecast to arrive on Saturday (Aug 15) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 13th Aug) | 3ft (0.9m) 16s |
| Best Surf | 11PM (Thu 13th Aug) | 3ft (0.9m) 16s |
| Most Powerful | 2AM (Sat 15th Aug) | 4ft (1.2m) 17s |
Table - best surf conditions forecast for Terra Mar over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight with you – this outlook for Terra Mar is a tough one. We’ve got a 16-day window, but honestly, the surf is pretty uninspiring right from the start. The first real chance of anything rideable is a marginal window on Thursday morning, August 13th, with a 2ft SSW groundswell wrapping in at a long 16 seconds. The wind is onshore from the SW at 6 mph though, and the combined wave energy is weak (340), so it’s a scratchy, small-wave affair for the dedicated.
The real problem is the wind. It’s stuck onshore or cross-onshore for almost the entire run. Through Friday the 14th and into the weekend, we see a bit more energy – the combined swell energy creeps up to moderate levels around 594 (Friday morning) to 717 (Saturday afternoon) – and the swell stays in that 2ft to 4ft range from the SSW. But it’s all coming in with a 9 mph cross-onshore breeze, making it choppy and messy. Not the kind of clean lines you want, especially for a point break that needs a decent groom.
Honestly, the pick of a pretty average bunch would have to be Tuesday morning, August 18th. The swell drops back to 2ft but the wind is only a light onshore breeze from the SW at 6 mph, and the period is a long 16 seconds. That long period means the swell will have some push and shape, but it’s still small, and the conditions will only be average. The combined energy is weak (440). It’s a session for the longboard or a foamie, just to get a few gentle, drifting rides.
The rest of the second week fades into even smaller surf, with heights dropping to 1ft to 2ft, and the wind staying unfriendly. A few mornings, like Monday the 24th, have a “marginal” nod with 2ft waves and light cross-onshore wind, but it’s a real struggle. Short version: this isn’t the week to plan a trip. Keep your gear handy – forecasts can change – but for now, conditions are poor.
Rusty
Short Range ForecastMostly dry. Warm (max 22°C on Thu morning, min 19°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Tue morning, min 20°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
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) | SW 16 | SW 16 | SW 15 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 16 | SSW 16 | SSW 15 | SSW 16 | SSW 16 | SSW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 255 | 358 | 280 | 302 | 404 | 807 | 417 | 683 | 666 | 499 | 443 | 367 | 367 | 264 | 261 | 232 | 240 | 272 | 377 | 314 | 249 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | glassy | cross-on | cross-on | cross-off | cross-on | cross-on | cross | cross-on | cross-on | glassy | cross-on | cross-on | glassy | on | on | glassy | on | on | cross |
High Tide | 10:46AM1.87m | 10:16PM2.30m | 11:19AM1.93m | 11:00PM2.09m | 11:52AM1.96m | 11:45PM1.85m | 12:26PM1.96m | 00:34AM1.60m | 1:01PM1.93m | 1:36AM1.37m | 1:41PM1.88m | 3:24AM1.21m | 2:34PM1.82m | ||||||||
Low Tide | 4:11PM0.75m | 4:58AM0.17m | 5:00PM0.72m | 5:29AM0.35m | 5:51PM0.72m | 5:58AM0.56m | 6:46PM0.75m | 6:24AM0.77m | 7:51PM0.79m | 6:47AM0.96m | 9:16PM0.81m | 7:02AM1.12m | 10:59PM0.76m | ||||||||
 |  |  | |  |  | | | | | | | | | | | | | | | | |
 | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — |
 | — | 7:37 | — | — | 7:36 | — | — | 7:35 | — | — | 7:34 | — | — | 7:32 | — | — | 7:31 | — | — | 7:30 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 20 | 22 | 22 | 20 | 21 | 21 | 20 | 22 | 23 | 21 | 23 | 24 | 22 | 25 | 25 | 22 | 25 | 24 | 22 |
Feels °C | 23 | 22 | 21 | 22 | 21 | 21 | 20 | 20 | 21 | 23 | 22 | 21 | 23 | 23 | 23 | 26 | 25 | 23 | 26 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 15 | SW 15 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | W 7 | W 8 | W 8 | SSW 15 | W 8 | SSW 16 | W 8 |
| kJ | 255 | 358 | 280 | 255 | 404 | 807 | 417 | 683 | 666 | 499 | 443 | 367 | 367 | 264 | 73 | 97 | 91 | 272 | 95 | 314 | 157 |
Swell 2 Height (m) Direction Period (s) | S 11 | S 11 | SSW 20 | SSW 18 | SW 14 | SSW 12 | SW 14 | S 11 | W 5 | S 11 | S 10 | W 6 | W 6 | SSW 18 | SSW 14 | SSW 16 | SSW 16 | W 9 | SSW 16 | W 8 | SSW 15 |
| kJ | 62 | 61 | 149 | 302 | 214 | 78 | 191 | 21 | 13 | 20 | 8 | 30 | 37 | 63 | 261 | 232 | 240 | 76 | 377 | 74 | 249 |
Swell 3 Height (m) Direction Period (s) | SW 12 | SSW 21 | SSW 10 | SSW 10 | SSW 11 | W 11 | S 11 | W 11 | S 11 | W 10 | W 10 | S 10 | S 10 | S 10 | S 10 | SSW 13 | SSW 13 | SW 19 | SW 20 | S 9 | SW 18 |
| kJ | 23 | 44 | 32 | 37 | 66 | 2 | 37 | 2 | 20 | 2 | 2 | 8 | 8 | 8 | 2 | 116 | 98 | 15 | 16 | 1 | 13 |
Wind waves Height (m) Direction Period (s) | — | W 8 | — | — | — | — | W 5 | W 5 | — | W 5 | W 6 | — | — | W 6 | — | — | — | — | — | — | — |
| kJ | — | 12 | — | — | — | — | 7 | 7 | — | 14 | 21 | — | — | 39 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 115 | 61 | 0 | 61 | 60 | 0 | 61 | 60 | 33 | 60 | 61 | 0 | 60 | 60 | 0 | 61 | 61 | 0 | 39 | 178 | 1 |
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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