Surf Forecasts:
Seaside Reef surf forecast from 1 Sep 2026:
- Best quality surf: Monday 7 Sep, 11PM (local time) - 21ft (6.5m), 12s period, S swell with cross-shore winds.
- Most powerful swell: Monday 7 Sep, 11PM (local time) - 21ft (6.5m), 12s period, S swell with 12,534 kJ wave energy.
- Next surfable swell (1★+): Wednesday 2 Sep, 5AM (local time) - 2ft (0.6m), 18s period with SSW swell.
Best Forecast Surf Conditions for Seaside Reef this week:
The surf forecast for Seaside Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 02) at 5AM. The primary swell is predicted to be 0.6m and 18s period with a secondary swell of 0.8m and 6s. Another secondary swell of 0.6m and 12s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Seaside Reef in the next 16 days are 6.5m 12s and forecast to arrive on Monday (Sep 07) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 14s period and expected on Saturday (Sep 05) at 5AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Wed 2nd Sep) | 2ft (0.6m) 18s |
| Best Surf | 11PM (Mon 7th Sep) | 21ft (6.5m) 12s |
| Most Powerful | 11PM (Mon 7th Sep) | 21ft (6.5m) 12s |
Table - best surf conditions forecast for Seaside Reef over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s coming up over the next couple of weeks.
First off, we’ve got a bit of a slow start. For the first few days, there’s small swell in the water but the conditions are just plain poor. Not much to get excited about. The water is sitting at a warm 77°F – that’s about 9°F warmer than usual for this time of year, which is very unusual.
Then things start to ramp up. On the morning of Saturday the 5th, the swell starts to build. We’re looking at a 5ft swell from the S with a period of 14 seconds, and the energy is ramping up (1313). It’s only a 3/10 though, with a cross-on breeze and some rain around. The afternoon stays similar with a 6ft S swell at 15 seconds (1961 energy). Still marginal.
The standout in this whole outlook is Sunday the 6th. The morning is the pick of the entire forecast. We’ve got a solid 10ft S swell, period of 15 seconds, and the energy is pumping (3556). The wind is a light cross-offshore breeze from the NNE, which is going to make it clean. This is proper groundswell, and for a reef break like Seaside Reef, that’s a dream. The report says “excellent surf conditions for experienced surfers” and I’d agree – this is big, powerful, and not for the faint-hearted. The afternoon sees the wind shift to a cross-shore and the quality drops a bit.
Monday the 7th holds onto size – 10ft from the S again in the morning, but the wind is a cross-shore, making it a bit choppy. The afternoon gets messy with 15ft S swell and a moderate cross-onshore breeze (5630 energy). That’s a lot of juice, but the wind is going to ruin it. That’s more of a kite-surfing setup than a clean paddle.
After that, the swell drops off fast. Tuesday the 8th has a 7ft SS swell with a short 8-second period, and the wind is cross-on. Not great. From Wednesday the 9th onwards, it’s mostly small, poor surf with light winds but no real energy. The second week is a write-off – tiny waves and poor conditions. We’re looking at a long gap with no real recommendations from the 9th right through to the 16th.
So, if you’re an experienced surfer who can handle a big, clean groundswell, Sunday the 6th is your day. Get out there early before the wind changes. The rest of the window is a dud.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Tue morning, min 19°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 17mm), heaviest on Sun morning. Warm (max 26°C on Sun night, min 20°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | |||||||||||||||
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 13 | SSW 13 | SSW 13 | SW 16 | SSW 13 | SW 17 | SW 15 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | S 14 | S 15 | S 15 | S 15 | S 15 | S 15 | S 13 | S 12 | S 11 |
Wave Graph | |||||||||||||||||||||
116 | 114 | 92 | 132 | 242 | 298 | 188 | 547 | 651 | 587 | 717 | 620 | 758 | 1409 | 2412 | 3510 | 3935 | 4810 | 2959 | 5630 | 8218 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | on | on | glassy | cross-on | on | glassy | cross-on | on | glassy | cross-on | cross-on | cross | cross-off | cross | cross-off | cross | cross-on | cross |
High Tide | 12:05PM2.03m | 00:56AM1.39m | 12:47PM2.02m | 2:38AM1.23m | 1:47PM1.99m | 6:09AM1.25m | 3:12PM1.98m | 7:12AM1.38m | 4:45PM2.04m | 7:40AM1.51m | 6:00PM2.14m | 8:08AM1.64m | 7:00PM2.24m | ||||||||
Low Tide | 7:02PM0.65m | 5:57AM0.95m | 8:22PM0.65m | 6:23AM1.10m | 10:06PM0.60m | 6:57AM1.24m | 11:36PM0.46m | 10:00AM1.32m | 00:39AM0.30m | 11:49AM1.23m | 1:26AM0.18m | 12:55PM1.08m | 2:06AM0.11m | ||||||||
6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | |
— | 7:14 | — | — | 7:13 | — | — | 7:10 | — | — | 7:09 | — | — | 7:08 | — | — | 7:07 | — | — | 7:06 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 14 | 1 | — | — | — | — |
Temp °C | 23 | 23 | 21 | 23 | 23 | 22 | 23 | 23 | 21 | 23 | 23 | 21 | 24 | 23 | 24 | 24 | 25 | 26 | 31 | 31 | 28 |
Feels °C | 23 | 21 | 21 | 22 | 21 | 22 | 23 | 22 | 21 | 22 | 22 | 22 | 25 | 24 | 25 | 27 | 27 | 28 | 32 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 10 | W 5 | W 6 | SSW 13 | W 6 | WNW 6 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSE 14 | S 14 | S 15 | S 15 | S 15 | S 15 | S 15 | S 13 | — | SW 18 |
114 | 106 | 36 | 34 | 242 | 44 | 51 | 547 | 651 | 587 | 717 | 631 | 758 | 1409 | 2412 | 3510 | 3935 | 4810 | 2959 | — | 50 | |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 13 | S 9 | SSW 11 | SW 16 | SSW 12 | SSW 11 | SSW 10 | W 6 | WNW 7 | S 15 | SSW 16 | SSW 16 | SSW 16 | W 13 | — | W 12 | — | — | — | — |
116 | 114 | 42 | 74 | 129 | 199 | 138 | 55 | 30 | 73 | 465 | 620 | 512 | 512 | 14 | — | 3 | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | W 5 | SW 18 | SSW 13 | SW 16 | SSW 20 | SW 17 | SW 15 | SW 12 | SW 11 | SSE 15 | W 6 | W 5 | SW 11 | SW 11 | SW 20 | — | — | — | — | — | — |
21 | 80 | 92 | 132 | 41 | 298 | 188 | 73 | 63 | 246 | 33 | 13 | 43 | 40 | 15 | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | W 6 | WNW 5 | — | W 6 | — | — | WNW 6 | — | — | — | — | — | — | — | W 10 | NW 4 | — | — | S 12 | S 11 |
— | 30 | 40 | — | 24 | — | — | 50 | — | — | — | — | — | — | — | 46 | 15 | — | — | 5630 | 8218 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 41 | 42 | 12 | 41 | 42 | 0 | 41 | 42 | 0 | 42 | 42 | 0 | 5 | 8 | 2 | 0 | 20 | 0 | 15 | 42 | 18 |
Best forecast wave conditions in San Diego County | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Seaside Reef Surf forecast
The above surf forecast table for Seaside Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Seaside Reef can be found by selecting the local surf guide option on the grey menu. Our Seaside Reef 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 (Seaside Reef) 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 Seaside Reef 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.
Seaside Reef is 1 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.











