Surf Forecasts:
Terra Mar surf forecast from 12 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★+): Wednesday 12 Aug, 2AM (local time) - 2.5ft (0.7m), 18s 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 Wednesday (Aug 12) at 2AM. The primary swell is predicted to be 0.7m and 18s period with a secondary swell of 0.5m and 12s. 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 glassy at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 12th Aug) | 2.5ft (0.7m) 18s |
| 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 have a look at what's cookin' for Terra Mar over the next couple of weeks.
Honestly, it's a bit of a slow grind for the near future. We've got a long stretch of pretty lackluster conditions ahead. The swell is running small and the wind is mostly cross or cross-on, keeping things from cleaning up. The water is a warm 75°, which is a staggering 7° warmer than it should be for this time of year. That's a serious anomaly.
The first real chance to even think about paddling out comes on Thursday, August 15th. The morning shows a slight improvement with a light onshore wind, but the swell is still a weak 3 ft from the SSW with a period of 16 seconds. The combined energy is moderate (652). The afternoon might offer a bit more size, pushing to 4 ft from the SSW, but the wind goes cross-on. It's a marginal call, but a longboard might find some fun lines.
Friday, August 16th, morning is the best option in the first week. The swell is 4 ft from the SW, period at 16 seconds, and the wind is a light cross-on. The combined energy is moderate (577). It's still a marginal day, but those long-period lines from the SW should wrap in with okay shape. It won't be epic, but it'll be the most rideable it gets for a while.
From there, the forecast drops off again. Most days are just poor surf with cross-on or onshore winds. We see a few times on the 18th, 20th, and 21st where the wind goes straight onshore, which is better than cross, but without any real swell push, it's not going to matter much.
The real hope, and it's a long way out, lands on Wednesday, August 27th. The morning shows a 3 ft swell from the S with a 18-second period, and that combined energy jumps to a strong 873. The wind is a light cross-on, which is promising. The afternoon is the real standout though. The swell shifts to the SSE (still 3 ft) but the combined energy rips up to 1134 – that's strong wave energy. Wind stays light. This is the one to circle on the calendar. It's a long way off, so don't book the plane ticket yet, but that SSE direction with long period and light wind could be a gem.
Keep an eye on that last week. For now, it's a waiting game.
Rusty out.
Short Range ForecastSome drizzle, heaviest during Tue afternoon. Warm (max 23°C on Tue afternoon, min 19°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Mon morning, min 18°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Tue 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | ||||||||||||||
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 18 | SW 18 | SSW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
Wave Graph  | ||||||||||||||||||||
 kJ | 252 | 316 | 195 | 264 | 306 | 255 | 358 | 280 | 302 | 404 | 807 | 417 | 683 | 666 | 551 | 443 | 437 | 367 | 264 | 357 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross-on | cross-on | cross-on | on | cross-on | glassy | cross-on | cross-on | glassy | on | cross-on | glassy | cross-on | cross-on | cross | cross-on | cross-on | glassy |
High Tide | 8:45PM2.49m | 10:13AM1.79m | 9:31PM2.43m | 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 | |||||||
Low Tide | 2:33PM0.92m | 3:49AM-0.05m | 3:23PM0.82m | 4:24AM0.03m | 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 | |||||||
 |  |  | |  |  | |  | |  | | | | | | | | | | | |
 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — |
 | 7:38 | — | — | 7:37 | — | — | 7:37 | — | — | 7:36 | — | — | 7:35 | — | — | 7:34 | — | — | 7:32 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 22 | 23 | 23 | 21 | 22 | 22 | 20 | 22 | 21 | 20 | 21 | 22 | 20 | 22 | 22 | 21 | 23 | 23 | 22 |
Feels °C | 23 | 24 | 23 | 23 | 22 | 23 | 22 | 21 | 22 | 20 | 20 | 21 | 21 | 20 | 22 | 21 | 21 | 23 | 21 | 22 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 18 | SSW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
| kJ | 118 | 316 | 195 | 264 | 306 | 255 | 358 | 280 | 217 | 404 | 807 | 417 | 683 | 666 | 551 | 443 | 437 | 367 | 264 | 357 |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 12 | SSW 11 | SSW 12 | SSW 10 | S 11 | S 11 | S 10 | SSW 18 | SW 14 | W 4 | SW 14 | S 11 | W 5 | S 11 | S 10 | W 5 | S 10 | SSW 18 | W 6 |
| kJ | 252 | 68 | 42 | 49 | 35 | 62 | 61 | 51 | 302 | 214 | 5 | 191 | 21 | 13 | 9 | 8 | 19 | 8 | 63 | 30 |
Swell 3 Height (m) Direction Period (s) | SW 15 | SW 13 | SW 13 | SW 13 | S 12 | SW 12 | SSW 21 | SSW 20 | SSW 9 | W 12 | S 12 | S 11 | W 11 | S 11 | W 10 | W 10 | S 10 | W 10 | SW 10 | S 10 |
| kJ | 75 | 44 | 44 | 61 | 27 | 23 | 44 | 149 | 16 | 3 | 44 | 37 | 2 | 20 | 2 | 2 | 8 | 2 | 15 | 7 |
Wind waves Height (m) Direction Period (s) | WNW 12 | — | W 4 | — | — | — | W 8 | — | W 6 | SSW 11 | W 4 | W 5 | W 5 | — | W 6 | W 5 | — | W 6 | W 6 | — |
| kJ | 48 | — | 2 | — | — | — | 12 | — | 3 | 78 | 8 | 7 | 12 | — | 15 | 20 | — | 22 | 22 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 61 | 0 | 61 | 61 | 24 | 61 | 61 | 0 | 60 | 61 | 0 | 60 | 60 | 0 | 60 | 61 | 40 | 61 | 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.
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