Surf Forecasts:
Terra Mar surf forecast from 29 Aug 2026:
- Best quality surf: Thursday 3 Sep, 11PM (local time) - 4.5ft (1.3m), 14s period, SSW swell with glassy winds.
- Most powerful swell: Saturday 29 Aug, 8PM (local time) - 4.5ft (1.3m), 16s period, SSW swell with 788 kJ wave energy.
- Next surfable swell (1★+): Saturday 29 Aug, 11PM (local time) - 4.5ft (1.3m), 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 Saturday (Aug 29) at 11PM. The primary swell is predicted to be 1.3m and 16s period with a secondary swell of 0.8m 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 1.3m 16s and forecast to arrive on Saturday (Aug 29) at 8PM. 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 (Sat 29th Aug) | 4.5ft (1.3m) 16s |
| Best Surf | 11PM (Thu 3rd Sep) | 4.5ft (1.3m) 14s |
| Most Powerful | 8PM (Sat 29th Aug) | 4.5ft (1.3m) 16s |
Table - best surf conditions forecast for Terra Mar over the next 16 days.
The Lowdown
Alright, Rusty here. Let's talk about what's cooking at Terra Mar over the next couple of weeks.
Look, honestly, the start of this outlook is a bit of a bummer. We've got a long stretch of nothing special, so don't be rushing to wax up just yet. The first real chance for a wave comes Saturday morning, August 29th, but it's a marginal call. The swell is a long-period groundswell from the SSW at 4ft with a 17-second period, carrying moderate energy (742). Problem is, the wind is cross-onshore from the WSW at 9 mph, so it's gonna be a bit choppy.
We then go through a flat spell of many days with poor conditions and small, weak swell. The wind just keeps messing with us.
Now, keep your eye on Sunday, September 6th. By the afternoon, things finally line up. The wind drops to nothing – glassy conditions – out of the west. The swell is a clean 3ft from the SSW, still a good 15-second groundswell, with moderate energy (651). This is the standout window for the whole period. The water is sitting at a very unusual 77°F, which is a massive 9° warmer than normal for this time of year, so you can leave the wetsuit at home.
After that glassy Sunday, Monday September 7th sees the swell building, but the cross-onshore wind comes back. By Tuesday September 8th, the swell gets solid. The morning pushes 8ft from the SSW, and by the afternoon it's a serious 12ft from the SSW with strong energy (3123). This is expert territory only. The wind is still cross-onshore, so it's likely to be a lumpy, powerful mess. It'll look more like a day for the tow-in crew or perhaps more interesting for kite surfing than paddle surfing.
From Wednesday September 9th onward, the swell drops off quickly and we're back to small, weak, and windswept conditions right through to the end of the 16-day window.
So, the takeaway: if you want clean, fun waves, September 6th Sunday afternoon is your moment. For the big, gnarly stuff, September 8th Tuesday has the size but expect challenging conditions. Otherwise, give the ocean some space.
Stay frothy.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Sat morning, min 21°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Tue afternoon, min 20°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | |||||||||||||||
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 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | S 12 | SSW 13 | SSW 13 | S 11 | S 12 | SSW 12 | SSW 12 | SSW 13 | SSW 12 | SSW 16 | SSW 14 | SSW 17 | SSW 16 | SSW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 692 | 627 | 759 | 537 | 478 | 389 | 325 | 235 | 160 | 156 | 260 | 371 | 373 | 361 | 648 | 517 | 452 | 621 | 537 | 659 | 620 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | on | glassy | on | cross-on | cross-off | cross-on | cross | cross | cross-on | cross-on | glassy | on | cross-on | glassy | cross-on | on | glassy |
High Tide | 10:39AM1.90m | 10:30PM1.96m | 11:04AM1.97m | 11:10PM1.79m | 11:32AM2.02m | 11:57PM1.60m | 12:06PM2.03m | 00:58AM1.39m | 12:48PM2.03m | 2:40AM1.23m | 1:48PM2.00m | 6:05AM1.25m | 3:13PM1.98m | ||||||||
Low Tide | 4:31PM0.69m | 4:46AM0.49m | 5:13PM0.65m | 5:10AM0.64m | 6:02PM0.64m | 5:34AM0.79m | 7:03PM0.65m | 5:58AM0.95m | 8:23PM0.65m | 6:24AM1.10m | 10:07PM0.59m | 7:01AM1.25m | 11:37PM0.45m | ||||||||
 | |  | | | | | | | |  |  | | | | | | | | | | |
 | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — |
 | — | 7:17 | — | — | 7:16 | — | — | 7:15 | — | — | 7:15 | — | — | 7:13 | — | — | 7:12 | — | — | 7:10 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 28 | 25 | 25 | 25 | 22 | 24 | 24 | 22 | 24 | 25 | 23 | 25 | 25 | 23 | 24 | 24 | 22 | 22 | 23 | 21 |
Feels °C | 30 | 28 | 28 | 24 | 24 | 23 | 23 | 23 | 22 | 23 | 22 | 21 | 23 | 22 | 22 | 23 | 22 | 22 | 21 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | W 7 | SSW 14 | S 12 | S 11 | S 11 | S 11 | S 12 | SSW 12 | SSW 12 | SSW 13 | SSW 12 | SSW 12 | SSW 14 | SSW 12 | SSW 16 | SSW 16 |
| kJ | 692 | 627 | 759 | 537 | 478 | 99 | 325 | 235 | 160 | 149 | 260 | 371 | 373 | 361 | 648 | 517 | 412 | 621 | 403 | 659 | 620 |
Swell 2 Height (m) Direction Period (s) | W 6 | W 6 | W 7 | W 8 | W 8 | SSW 14 | W 7 | SSW 13 | SSW 13 | SSW 13 | W 5 | WNW 5 | SW 16 | SW 16 | W 5 | W 6 | SSW 16 | SSW 18 | SSW 17 | SSW 12 | W 6 |
| kJ | 29 | 28 | 80 | 153 | 89 | 389 | 55 | 158 | 156 | 156 | 14 | 35 | 214 | 208 | 11 | 25 | 452 | 408 | 537 | 231 | 53 |
Swell 3 Height (m) Direction Period (s) | SSW 8 | SW 12 | S 8 | SSE 13 | S 12 | SSE 12 | S 13 | SSW 19 | W 5 | W 5 | SW 18 | SW 18 | W 9 | SSW 12 | S 15 | SSW 19 | S 13 | W 5 | W 7 | W 6 | SW 11 |
| kJ | 21 | 37 | 10 | 33 | 44 | 46 | 163 | 35 | 14 | 9 | 80 | 111 | 2 | 119 | 17 | 145 | 14 | 21 | 42 | 28 | 117 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | W 6 | — | — | — | — | W 5 | W 3 | — | — | W 6 | — | — | W 6 | W 6 |
| kJ | — | — | — | — | — | — | — | 25 | — | — | — | — | 7 | 4 | — | — | 25 | — | — | 52 | 88 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 60 | 61 | 42 | 61 | 60 | 0 | 61 | 61 | 0 | 60 | 60 | 40 | 60 | 61 | 0 | 61 | 156 | 0 | 61 | 1335 | 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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