
Surf Forecasts:
Sandbox surf forecast from 9 Aug 2026:
- Best quality surf: Friday 14 Aug, 8AM (local time) - 3ft (0.9m), 15s period, SW swell with glassy winds.
- Most powerful swell: Saturday 15 Aug, 8PM (local time) - 4.5ft (1.3m), 16s period, SSW swell with 832 kJ wave energy.
- Next surfable swell (1★+): Sunday 9 Aug, 11PM (local time) - 3ft (0.9m), 14s period with SSW swell.
Best Forecast Surf Conditions for Sandbox this week:
The surf forecast for Sandbox over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 09) at 11PM. The primary swell is predicted to be 0.9m and 14s period with a secondary swell of 0.4m and 5s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Sandbox in the next 16 days are 1.3m 16s and forecast to arrive on Saturday (Aug 15) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 12s period and expected on Wednesday (Aug 12) at 8PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sun 9th Aug) | 3ft (0.9m) 14s |
| Best Surf | 8AM (Fri 14th Aug) | 3ft (0.9m) 15s |
| Most Powerful | 8PM (Sat 15th Aug) | 4.5ft (1.3m) 16s |
Table - best surf conditions forecast for Sandbox over the next 16 days.
The Lowdown
Alright, let’s get real about the next couple of weeks. To be honest, the surf is looking pretty flat and weak for a while. We’ve got a long stretch of small, gutless swells and a lot of it is lined up wrong for the Sandbox. The water is a crazy 76°F with a huge anomaly of 8°F warmer than normal – that’s a big deal, the ocean’s running really warm for this time of year.
The first few days, from Sunday the 9th through Thursday the 13th, are a total write-off. We’re looking at tiny waves, nothing over 3ft, and most of it is coming from the SSW, which is not what this spot wants. The wind is mostly light and cross-on, which isn't helping the cause. There’s some energy in the water, but it's just not translating into anything rideable. You’d be fighting for scraps.
Things start to shift a little on Friday the 14th. The swell stays small, around 2ft to 3ft, but the period stretches out to 18 seconds, and the energy starts to climb. It’s still only marginal, and the wind is light and onshore, but at least there’s some push to it. Saturday the 15th sees the energy peak with the swell bumping up to 4ft in the afternoon, but the direction is still SSW and the period drops back to 16 seconds. It's still not great, but it’s the most interesting it’s been.
The standout, if you can call it that, is Saturday the 15th. The swell is 4ft from the SSW with a 16 second period. It’s not big, but it’s the most size we see in the whole window. The wind is light cross-on, so it might have a bit of texture, but it’s the best of a pretty average bunch. The energy is strong, which is the peak for the whole period. It’s still a far cry from perfect, but it’s the only day I’d bother getting wet for.
After that, the energy backs off a bit, but the swell direction stays the same. The rest of the second week is more of the same – small SSW pulses, mostly in the 2ft to 3ft range, with some longer period stuff around the 21st and 23rd. The winds stay light, which is a plus, but the waves are just not there. There’s a little blip on the 22nd with a 21 second period, but the swell is only 1ft. It’s all promise and no payoff. The long period stuff is there, but with the beach break setup, it might just close out.
Honestly, this is a bleak outlook. The Sandbox is a consistent spot, so it’s a bit unusual to see such a long run of nothing. But the swell direction is just wrong, and the size is too small. It’s not going to be good for much besides maybe a log if you’re desperate. I wouldn't hold my breath for any proper waves.
Rusty
Short Range ForecastMostly dry. Warm (max 24°C on Sun morning, min 21°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Wed morning, min 19°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | |||||||||||||||
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 15 | SSW 15 | SSW 14 | SSW 14 | SW 20 | SW 19 | SSW 13 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 |
Wave Graph | |||||||||||||||||||||
246 | 305 | 297 | 207 | 186 | 184 | 129 | 319 | 316 | 230 | 264 | 306 | 255 | 358 | 335 | 292 | 404 | 798 | 417 | 683 | 657 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | glassy | on | on | glassy | cross-on | on | on | cross-on | on | glassy | cross-on | on | glassy | on | on | cross | on | cross-on | cross-on |
High Tide | 8:30AM1.50m | 7:02PM2.36m | 9:05AM1.60m | 7:55PM2.46m | 9:38AM1.70m | 8:44PM2.49m | 10:12AM1.79m | 9:30PM2.43m | 10:45AM1.87m | 10:15PM2.29m | 11:18AM1.93m | 10:59PM2.09m | 11:51AM1.96m | 11:44PM1.85m | |||||||
Low Tide | 12:39PM1.15m | 2:29AM0.02m | 1:40PM1.04m | 3:10AM-0.05m | 2:33PM0.92m | 3:48AM-0.05m | 3:22PM0.82m | 4:24AM0.03m | 4:10PM0.75m | 4:57AM0.17m | 4:59PM0.72m | 5:28AM0.35m | 5:50PM0.72m | ||||||||
6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | |
— | 7:40 | — | — | 7:39 | — | — | 7:38 | — | — | 7:37 | — | — | 7:37 | — | — | 7:36 | — | — | 7:35 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 24 | 22 | 24 | 24 | 23 | 24 | 24 | 22 | 24 | 23 | 21 | 22 | 22 | 20 | 21 | 21 | 20 | 22 | 24 | 21 |
Feels °C | 25 | 24 | 23 | 25 | 24 | 25 | 24 | 24 | 23 | 24 | 23 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 22 | 24 | 21 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 |
246 | 305 | 297 | 207 | 139 | 137 | 129 | 319 | 316 | 230 | 264 | 306 | 255 | 358 | 335 | 251 | 404 | 798 | 417 | 683 | 657 | |
Swell 2 Height (m) Direction Period (s) | W 5 | W 5 | W 4 | SW 20 | SW 20 | SW 19 | SW 18 | SSW 12 | SSW 12 | SW 13 | SW 13 | S 11 | S 11 | S 11 | S 11 | SSW 18 | SW 14 | S 12 | SW 14 | S 11 | SW 13 |
14 | 14 | 6 | 103 | 186 | 184 | 114 | 49 | 47 | 61 | 61 | 59 | 60 | 59 | 61 | 292 | 251 | 43 | 191 | 21 | 87 | |
Swell 3 Height (m) Direction Period (s) | SSW 11 | SW 11 | SW 11 | W 4 | SW 16 | SW 14 | SW 14 | SW 15 | SW 13 | S 13 | S 12 | W 9 | W 9 | SSW 21 | SSW 20 | S 11 | S 11 | SSW 9 | SW 11 | W 11 | SW 9 |
47 | 30 | 30 | 3 | 39 | 33 | 74 | 75 | 45 | 50 | 47 | 6 | 13 | 44 | 149 | 37 | 61 | 16 | 29 | 10 | 13 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | W 4 | — | — | — | — | — | WNW 10 | — | — | W 8 | — | — | WNW 8 | WNW 3 | WSW 8 | WSW 10 | WNW 4 |
— | — | — | — | 1 | — | — | — | — | — | 18 | — | — | 12 | — | — | 19 | 3 | 26 | 36 | 7 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 43 | 43 | 0 | 43 | 43 | 0 | 43 | 43 | 17 | 43 | 43 | 0 | 132 | 43 | 0 | 42 | 42 | 11 | 42 | 42 | 26 |
Best forecast wave conditions in San Diego County | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
Latest Updates
Information about the Sandbox Surf forecast
The above surf forecast table for Sandbox provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Sandbox can be found by selecting the local surf guide option on the grey menu. Our Sandbox 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 (Sandbox) 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 Sandbox 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.
Sandbox is 2 km (1 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.











