
Surf Forecasts:
Seaside Reef surf forecast from 9 Jul 2026:
- Best quality surf: Wednesday 8 Jul, 11PM (local time) - 3.5ft (1.1m), 16s period, SSW swell with glassy winds.
- Most powerful swell: Thursday 9 Jul, 5AM (local time) - 3.5ft (1.1m), 17s period, SSW swell with 684 kJ wave energy.
- Next surfable swell (1★+): Wednesday 8 Jul, 11PM (local time) - 3.5ft (1.1m), 16s 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 (Jul 08) at 11PM. The primary swell is predicted to be 1.1m and 16s period with a secondary swell of 1.0m and 8s. 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 1.1m 17s and forecast to arrive on Thursday (Jul 09) 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 (Wed 8th Jul) | 3.5ft (1.1m) 16s |
| Best Surf | 11PM (Wed 8th Jul) | 3.5ft (1.1m) 16s |
| Most Powerful | 5AM (Thu 9th Jul) | 3.5ft (1.1m) 17s |
Table - best surf conditions forecast for Seaside Reef over the next 16 days.
Alright folks, Rusty here. Let’s get straight into what we’ve got on the cards for Seaside Reef. It’s a reef break that’s advanced only, and it’s an inconsistent one, so when it fires, you gotta be on it. But I gotta be honest, looking at this 16-day window, it’s a real mixed bag with a whole lot of “meh” before we get to the main event.
Right now, water temp is sitting at 71°, which is a couple of degrees warmer than usual for this time of year, so you can leave the steamers at home.
We start off with a bit of a tease on Wednesday, July 8th. The morning has a clean, clear sky with a light cross-on breeze, and a 4 ft SSW swell rolling in with a super long 16-second period. That’s a proper groundswell with great energy (945), but it’s got that real long period, which makes it tricky for a beach break – lucky for us, this is a reef. The issue is, the forecast says it’s marginal. The afternoon sees the wind swing more onshore, but still light. It’s not terrible, but it’s not a standout.
Then Thursday, July 9th, through to Tuesday, July 14th, it’s a rough patch. The swell drops, the wind gets messy, and the water gets choppy. The scores are low across the board. The combined energy drops from the 700s down to the 200s, and the wind is mostly cross or cross-on, messing up the surface. It’s a period of nothing doing, really. A few days of flat spells with poor surf conditions.
We get a flicker of life on Saturday, July 18th, with a clean 3 ft SW swell (480 energy) and offshore winds, but it’s still marginal and the size is tiny. Not a day to get excited about.
Now, the real standout, the one you’ve been waiting for, is Sunday, July 19th. This is it. The swell jumps to 6 ft from the S, with a 16-second period. The combined energy is a massive 2238 – that’s serious power. And the wind? Offshore, light breeze from the west. This is as clean as it gets for a reef. The sets will be grinding, but keep in mind, at 6 ft, this is getting into the big range for an advanced spot. The crowd factor is “often” at Seaside, so you’ll likely have company. This is the best on offer, no question. The morning and afternoon both look solid.
The following days still have some life, with a 4 ft swell on Monday, July 20th, and then a steady 3-4 ft SSW swell through Tuesday and Wednesday, July 21st & 22nd, with clean offshore winds. The energy is in the moderate range (500-700), so it’s not the same punch as the 19th, but it’s still a good, clean wave.
Finally, Thursday, July 23rd brings a pulse of 5 ft S swell (1774 energy) with a 16-second period, but the wind is cross-on, which will make it choppy. It’s still a solid swell, but that wind is a letdown.
Verdict: Mark your calendar for Sunday, July 19th. That’s the day. The 6 ft S swell with offshore glass is a rare combo for this spot. The rest of the window is either too small, too windy, or just average. Don’t sleep on that Sunday.
- Rusty
Short Range ForecastMostly dry. Warm (max 23°C on Thu afternoon, min 17°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Mon morning, min 19°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | |||||||||||||||
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 16 | SSW 16 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | S 14 | SSW 14 | SSW 13 | SW 18 | SW 18 |
Wave Graph | |||||||||||||||||||||
659 | 651 | 675 | 545 | 481 | 568 | 434 | 405 | 405 | 417 | 451 | 384 | 316 | 210 | 326 | 312 | 179 | 213 | 137 | 154 | 194 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross | cross-on | cross-on | cross | cross | cross-on | cross | cross-on | cross | cross | cross-on | cross-on | glassy | on | on | cross-on | on | on | on |
High Tide | 4:22PM1.99m | 5:57AM1.27m | 5:16PM2.13m | 7:26AM1.34m | 6:11PM2.28m | 8:27AM1.44m | 7:06PM2.42m | 9:17AM1.52m | 7:59PM2.53m | 10:01AM1.59m | 8:50PM2.58m | 10:43AM1.65m | 9:39PM2.56m | ||||||||
Low Tide | 9:11AM0.93m | 11:54PM0.67m | 10:13AM1.04m | 00:56AM0.42m | 11:24AM1.11m | 1:49AM0.19m | 12:32PM1.12m | 2:39AM0.01m | 1:33PM1.09m | 3:26AM-0.11m | 2:30PM1.03m | 4:10AM-0.15m | 3:23PM0.98m | 4:54AM-0.11m | |||||||
5:47 | — | — | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — | 5:50 | — | — | |
— | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 7:59 | — | — | 7:59 | — | — | 7:59 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 20 | 22 | 23 | 20 | 22 | 22 | 20 | 22 | 22 | 20 | 22 | 22 | 21 | 23 | 23 | 21 | 24 | 24 | 23 |
Feels °C | 21 | 21 | 20 | 21 | 22 | 21 | 20 | 20 | 20 | 21 | 21 | 21 | 22 | 21 | 22 | 23 | 23 | 22 | 24 | 24 | 23 |
Swell 1 Height (m) Direction Period (s) | W 8 | SSW 16 | W 8 | W 9 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | S 14 | SSW 14 | SSW 13 | SSW 13 | W 5 |
168 | 651 | 161 | 190 | 481 | 568 | 434 | 405 | 405 | 417 | 451 | 384 | 316 | 210 | 326 | 312 | 179 | 213 | 137 | 95 | 26 | |
Swell 2 Height (m) Direction Period (s) | SSW 16 | W 7 | SSW 17 | SSW 16 | W 9 | W 9 | W 8 | W 8 | W 8 | W 7 | W 9 | W 8 | S 15 | S 15 | WNW 9 | WNW 9 | SSW 13 | SW 19 | S 12 | SW 18 | SSW 13 |
659 | 108 | 675 | 545 | 142 | 83 | 86 | 63 | 43 | 34 | 38 | 33 | 68 | 159 | 16 | 16 | 120 | 133 | 45 | 154 | 133 | |
Swell 3 Height (m) Direction Period (s) | S 19 | — | — | — | S 10 | S 9 | — | S 21 | — | S 19 | S 20 | S 18 | WNW 7 | W 9 | S 16 | SW 21 | SW 19 | S 12 | SW 19 | S 12 | SW 18 |
118 | — | — | — | 2 | 2 | — | 9 | — | 30 | 7 | 55 | 18 | 26 | 46 | 18 | 96 | 45 | 57 | 75 | 194 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WNW 9 | W 3 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 16 | 5 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 42 | 41 | 19 | 89 | 19 | 18 | 116 | 19 | 18 | 89 | 19 | 19 | 19 | 42 | 0 | 42 | 42 | 12 | 41 | 41 | 41 |
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)
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.










