Surf Forecasts:
Moonlight Beach surf forecast from 21 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 8AM (local time) - 4.5ft (1.4m), 13s period, S swell with cross-offshore winds.
- Most powerful swell: Thursday 27 Aug, 2PM (local time) - 5ft (1.6m), 14s period, SSW swell with 988 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 5AM (local time) - 2.5ft (0.7m), 14s period with SSW swell.
Best Forecast Surf Conditions for Moonlight Beach this week:
The surf forecast for Moonlight Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 21) at 5AM. The primary swell is predicted to be 0.7m and 14s period with a secondary swell of 0.5m and 6s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Moonlight Beach in the next 16 days are 1.6m 14s and forecast to arrive on Thursday (Aug 27) at 2PM. 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+) | 5AM (Fri 21st Aug) | 2.5ft (0.7m) 14s |
| Best Surf | 8AM (Wed 26th Aug) | 4.5ft (1.4m) 13s |
| Most Powerful | 2PM (Thu 27th Aug) | 5ft (1.6m) 14s |
Table - best surf conditions forecast for Moonlight Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it for Moonlight Beach. Look, I’m not gonna lie to you, things are looking pretty flat and uninspiring for the first week or so. We’ve got a long stretch of light wind, which is a positive, but the swell is just weak and disorganized for days on end. The real standout is a long way off, so we’re in a holding pattern for a while.
The first real chance for a wave comes on Friday, August 21st, but it’s a tough one. We’re seeing a small 2ft swell from the SSW with a 13-second period, giving us a combined energy of 255. It’s small, it’s marginal, and the wind is onshore. You might get a knee-high slip, but you’ll be working for it. Friday afternoon and Saturday, August 22nd, don’t offer any improvement; the swell drops off and the conditions are poor.
We then go through a pretty grim stretch from Sunday, August 23rd, right through to Thursday, September 3rd. The swell stays tiny, mostly under 3ft, and the wind is either onshore or cross-onshore, keeping the surface messy. The combined energy readings are mostly in the 200-800 range, confirming just how weak the wave energy is. There are a few glimmers, like Sunday morning, August 23rd, with a 2ft, 19-second period groundswell, but the energy is still low (362) and the waves are just too small to do anything with. It’s a real waiting game.
Now, the one that’s got my attention is Friday, September 4th. That morning looks like the clear winner. We’re looking at a clean 4ft swell from the SSE, with a solid 16-second period and a combined energy of 1360. The wind is glassy – absolutely dead calm – so the surface will be like a mirror. That’s a rare treat for a beach break. The forecast calls it “excellent surf conditions for experienced surfers.” The swell is a bit over 5ft, so it’s starting to get a bit much for the beginners, but for anyone who knows what they’re doing, this is the time to be in the water. That afternoon, the swell bumps up to 5ft, but the wind picks up and the quality drops off.
Saturday, September 5th, is the last day of the forecast window, with a bigger 7ft swell from the S, but the cross-onshore wind will chop it up. It’s more of a power session for the experts than a clean wave day.
So, to sum it up: the first week is a write-off with tiny, weak waves. The one and only standout is the morning of Friday, September 4th, with glassy conditions and a solid, long-period groundswell. That’s your window. Everything else is a marginal struggle.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Sun afternoon, min 22°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Tue morning, min 22°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | ||||||||||||||
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 13 | SSW 13 | SW 17 | SW 18 | SSW 14 | SSW 15 | SW 19 | SW 18 | SSW 14 | SW 18 | SW 17 | SW 17 | SW 16 | S 13 | S 14 | S 13 | S 13 | SSW 14 |
Wave Graph | |||||||||||||||||||
170 | 156 | 137 | 98 | 90 | 239 | 222 | 224 | 197 | 273 | 194 | 177 | 330 | 264 | 219 | 377 | 772 | 563 | 953 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | on | glassy | on | on | glassy | on | on | cross-on | on | on | glassy | on | cross-on | cross | cross-on | cross-on | glassy |
High Tide | 8:25AM1.36m | 5:06PM1.83m | 8:27AM1.43m | 6:08PM1.91m | 8:41AM1.49m | 6:56PM2.01m | 8:58AM1.55m | 7:35PM2.10m | 9:16AM1.61m | 8:10PM2.17m | 9:35AM1.68m | 8:44PM2.20m | |||||||
Low Tide | 00:19AM0.65m | 10:08AM1.35m | 1:10AM0.54m | 11:57AM1.32m | 1:47AM0.43m | 12:51PM1.24m | 2:18AM0.34m | 1:31PM1.14m | 2:46AM0.27m | 2:06PM1.04m | 3:11AM0.24m | 2:40PM0.94m | 3:36AM0.25m | ||||||
— | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | |
— | — | 7:28 | — | — | 7:27 | — | — | 7:24 | — | — | 7:23 | — | — | 7:22 | — | — | 7:22 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 26 | 25 | 23 | 26 | 26 | 24 | 27 | 28 | 24 | 27 | 27 | 24 | 28 | 28 | 25 | 26 | 26 | 23 |
Feels °C | 24 | 27 | 25 | 25 | 27 | 26 | 25 | 27 | 28 | 26 | 27 | 26 | 26 | 27 | 28 | 27 | 26 | 26 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 13 | SSW 13 | SSW 13 | W 6 | SSW 14 | SSW 15 | W 6 | SSW 13 | SSW 14 | W 6 | SW 17 | SW 17 | W 7 | S 13 | W 7 | S 13 | S 13 | SSW 14 |
170 | 156 | 137 | 98 | 31 | 239 | 222 | 40 | 135 | 273 | 38 | 177 | 330 | 94 | 219 | 166 | 772 | 563 | 953 | |
Swell 2 Height (m) Direction Period (s) | W 6 | W 6 | W 6 | W 6 | SSW 13 | W 6 | W 6 | SSW 13 | SW 18 | W 5 | SW 18 | SSW 13 | S 13 | SW 16 | SW 16 | S 14 | W 7 | W 7 | W 7 |
16 | 18 | 20 | 10 | 90 | 28 | 24 | 98 | 197 | 27 | 194 | 93 | 126 | 264 | 208 | 377 | 134 | 109 | 106 | |
Swell 3 Height (m) Direction Period (s) | WNW 12 | SW 18 | SSW 16 | SW 17 | SW 18 | SW 19 | SW 19 | SW 19 | S 16 | SW 18 | SSW 12 | S 15 | SSE 9 | S 13 | S 16 | S 11 | SW 16 | SSW 16 | W 13 |
28 | 81 | 51 | 77 | 82 | 57 | 58 | 224 | 45 | 199 | 87 | 38 | 9 | 128 | 46 | 125 | 157 | 392 | 31 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 6 | — | — | WNW 6 | WNW 6 | — | W 7 | — | — | — | — |
— | — | — | — | — | — | — | — | 38 | — | — | 50 | 56 | — | 97 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 47 | 47 | 1 | 47 | 46 | 1 | 46 | 47 | 46 | 46 | 46 | 1 | 46 | 189 | 13 | 25 | 25 | 1 |
Best forecast wave conditions in San Diego County | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Information about the Moonlight Beach Surf forecast
The above surf forecast table for Moonlight Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Moonlight Beach can be found by selecting the local surf guide option on the grey menu. Our Moonlight Beach 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 (Moonlight Beach) 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 Moonlight Beach 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.
Moonlight Beach is 6 km (4 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.











