Surf Forecasts:
Swamis surf forecast from 18 Aug 2026:
- Best quality surf: Monday 24 Aug, 2AM (local time) - 2.5ft (0.8m), 14s period, SSW swell with glassy winds.
- Most powerful swell: Tuesday 18 Aug, 5AM (local time) - 3ft (0.9m), 16s period, SSW swell with 397 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 11PM (local time) - 3ft (0.9m), 14s period with SSW swell.
Best Forecast Surf Conditions for Swamis this week:
The surf forecast for Swamis over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 17) at 11PM. The primary swell is predicted to be 0.9m and 14s period with a secondary swell of 0.9m and 6s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Swamis in the next 16 days are 0.9m 16s and forecast to arrive on Tuesday (Aug 18) at 5AM. 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+) | 11PM (Mon 17th Aug) | 3ft (0.9m) 14s |
| Best Surf | 2AM (Mon 24th Aug) | 2.5ft (0.8m) 14s |
| Most Powerful | 5AM (Tue 18th Aug) | 3ft (0.9m) 16s |
Table - best surf conditions forecast for Swamis over the next 16 days.
The Lowdown
Alright, let’s be straight with you. The next couple of weeks are looking grim. We’ve got a long, flat stretch of small, weak waves for the first week, and the one pulse of energy that shows up later isn't looking clean. Water temps are running about 72°F, which is a good 4°F warmer than average for this time of year – that’s a noticeable shift, you can probably leave the booties at home.
The first week is a total washout. From Monday the 17th through to Sunday the 23rd, we are looking at waves under 3 feet. There’s a bit of energy on Monday morning, the combined swell energy hits 408, but the wind is junk and the waves are messy. Tuesday brings a longer period swell of 16-17 seconds but no size behind it. The reports all point to “poor surf conditions” – it’s just bumpy, weak, and uninviting. There’s a slight bump on Wednesday and Sunday, but calling it “marginal” is being kind. You’ll be fighting the wind for any sort of shape. Don’t even bother waxing up.
The second week is more of the same. From Monday the 24th through to Friday the 28th, it’s tiny 2-foot waves with short periods. Energy readings are in the 200s and 300s, which is weak. There’s a slightly better period on Monday the 24th with 18 seconds, but the wave height is still pathetic. You’re better off going for a run.
But hold on, there's a hint of life. Saturday the 29th finally pushes the swell over the 3-foot mark, hitting 3 feet, and the energy jumps dramatically to 761 – that’s the biggest pulse of the entire period by far. It’s still got a cross-onshore wind messing it up, but there’s some real power in the water. This pulse carries into Sunday the 30th and Monday the 31st, with waves around 3 to 4 feet and energy in the 600s. Still, the calls are ‘marginal’ – the wind is just killing the quality. It has promise, but it’s not going to be glassy.
Swamis is the spot on the radar. It’s a beach and reef set-up that’s exposed and likes some west in the swell, which is what we’re getting. It’s fairly consistent, and on Saturday the 29th and Sunday the 30th, you might find something rideable. The swell direction is from the SSW, which is okay for it, but the cross-onshore wind will put a chop on the face. If it cleans up, there could be a few fun ones, but it’s more likely to be a wrestling match than a glide. The period is 15-17 seconds, which is a nice groundswell, but it can make a beach break like this a bit sectiony. This isn’t a classic, just the best of a bad lot.
After the 1st of September, the swell starts to back off again. There’s a glimmer of hope with this late-period push, but it’s a long way out. Forecasts can shift, so don’t write it off completely, but for the next 16 days, keep your expectations low. There’s no bomb swell on the horizon, just a lot of nothing with one brief pulse of average. It’s a good time to fix that ding.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Thu morning, min 21°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Sat morning, min 22°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||
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 14 | SSW 14 | SSW 16 | SSW 17 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SW 18 | SSW 14 | SSW 15 | SW 19 | SW 18 | SSW 14 |
Wave Graph | ||||||||||||||||||||
264 | 316 | 232 | 243 | 339 | 382 | 387 | 242 | 239 | 236 | 170 | 156 | 137 | 135 | 90 | 239 | 222 | 224 | 197 | 273 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | glassy | on | on | glassy | on | cross-on | glassy | cross-on | cross-on | glassy | cross-on | cross-on | glassy | on | on | glassy | on | on | glassy |
High Tide | 1:35AM1.37m | 1:41PM1.88m | 3:23AM1.21m | 2:33PM1.82m | 3:47PM1.79m | 8:25AM1.36m | 5:06PM1.83m | 8:27AM1.43m | 6:08PM1.91m | 8:41AM1.49m | 6:56PM2.01m | |||||||||
Low Tide | 7:51PM0.79m | 6:46AM0.96m | 9:15PM0.81m | 7:01AM1.12m | 10:59PM0.76m | 00:19AM0.65m | 10:08AM1.35m | 1:10AM0.54m | 11:57AM1.32m | 1:47AM0.43m | 12:51PM1.24m | 2:18AM0.34m | ||||||||
— | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | |
7:31 | — | — | 7:30 | — | — | 7:30 | — | — | 7:29 | — | — | 7:28 | — | — | 7:27 | — | — | 7:24 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 21 | 24 | 24 | 22 | 25 | 25 | 23 | 26 | 25 | 22 | 26 | 25 | 24 | 27 | 26 | 24 | 27 | 26 | 23 |
Feels °C | 24 | 22 | 24 | 24 | 23 | 26 | 25 | 25 | 27 | 25 | 24 | 26 | 25 | 25 | 27 | 25 | 25 | 27 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | W 6 | W 6 | W 7 | W 7 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 14 | SSW 15 | SSW 13 | SSW 13 | SSW 14 |
264 | 316 | 49 | 52 | 70 | 77 | 387 | 242 | 239 | 236 | 170 | 156 | 137 | 135 | 90 | 239 | 222 | 137 | 135 | 273 | |
Swell 2 Height (m) Direction Period (s) | SSW 18 | W 6 | SSW 16 | SSW 17 | SSW 15 | SSW 16 | W 7 | W 7 | W 6 | W 6 | W 7 | SW 18 | W 11 | WNW 11 | W 10 | W 10 | W 10 | SW 19 | SW 18 | SW 18 |
32 | 41 | 232 | 243 | 339 | 382 | 61 | 38 | 18 | 19 | 16 | 81 | 61 | 39 | 56 | 48 | 48 | 224 | 197 | 255 | |
Swell 3 Height (m) Direction Period (s) | W 10 | W 10 | SSW 13 | SSW 13 | SW 19 | SW 20 | S 8 | SW 18 | SW 19 | WNW 13 | WNW 12 | W 6 | SSW 16 | SW 17 | SW 18 | SW 19 | SW 19 | W 10 | WNW 6 | W 10 |
8 | 7 | 114 | 98 | 15 | 16 | 1 | 50 | 57 | 16 | 27 | 7 | 51 | 77 | 82 | 129 | 58 | 48 | 11 | 46 | |
Wind waves Height (m) Direction Period (s) | W 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
44 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 45 | 46 | 0 | 45 | 45 | 0 | 46 | 46 | 24 | 93 | 93 | 0 | 113 | 246 | 0 | 45 | 45 | 0 | 46 | 3 |
Best forecast wave conditions in San Diego County | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the Swamis Surf forecast
The above surf forecast table for Swamis provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Swamis can be found by selecting the local surf guide option on the grey menu. Our Swamis 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 (Swamis) 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 Swamis 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.
Swamis is 5 km (3 miles) from the city of Encinitas. If you plan a vacation in San Diego County, look for hotels and other accommodation in Encinitas. Encinitas has rooms for a wide range of budgets as well as car hire and transport links.











