Oceanside Harbor Surf Break

Lat Long: 33.26° N 117.44° W

Oceanside Harbor Surf Forecast and Surf Report

Issued: 10 am 20 Jul 2026 (local time)

Forecast update in  hr  min

Today's Oceanside Harbor sea temperature is
23.2° C
3.8° 

Oceanside Harbor surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Oceanside Harbor surf forecast from 20 Jul 2026:

  • Best quality surf: Saturday 25 Jul, 2AM (local time) - 3ft (0.9m), 21s period, SW swell with glassy winds.
  • Most powerful swell: Sunday 26 Jul, 2AM (local time) - 4ft (1.2m), 19s period, SW swell with 1,100 kJ wave energy.
  • Next surfable swell (1★+): Monday 20 Jul, 8PM (local time) - 3ft (0.9m), 16s period with SSW swell.

Best Forecast Surf Conditions for Oceanside Harbor this week:

The surf forecast for Oceanside Harbor over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Jul 20) at 8PM. The primary swell is predicted to be 0.9m and 16s period with a secondary swell of 0.9m and 11s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Oceanside Harbor in the next 16 days are 1.2m 19s and forecast to arrive on Sunday (Jul 26) at 2AM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Mon 20th Jul)3ft (0.9m) 16s
Best Surf 2AM (Sat 25th Jul)3ft (0.9m) 21s
Most Powerful 2AM (Sun 26th Jul)4ft (1.2m) 19s

Table - best surf conditions forecast for Oceanside Harbor over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let's take a good, hard look at what's coming down the line for Oceanside Harbor. We've got a solid 16-day window, and honestly, it's a bit of a mixed bag with some real promise if you can wait for it.

The water is a standout feature right now. At 74°, that's a whopping 7° warmer than usual for this time of year. It’s very unusual, so you can leave the thick wetsuit at home. The ocean feels like a bath.

Right now, things are a bit quiet. The first real surfable energy we see kicks off on Monday the 20th with a modest 3ft SSW groundswell, with a very long period of 15 seconds. The combined energy is moderate (641). The wind is light onshore, so it's a "make the most of it" session, not a standout. This marginal pattern continues through Tuesday and Wednesday, with the swell staying under 4ft and the winds mostly cross-onshore, making it a bit choppy. The best of this early run is probably Monday morning with the light breeze, but it's nothing to write home about.

Then we hit a bit of a lull in quality. The afternoon of Wednesday the 22nd gets a solid 12 mph cross-onshore wind that chops everything up, so I'd skip that. Thursday and Friday look a little better in size, but the wind is still a problem, keeping the surf quality poor. The combined energy picks up, hitting 949 and then 1072 on Friday morning, but it's all bark and no bite with the wind.

The real interest starts to build around the end of the first week. Saturday the 25th morning has a tiny 3ft swell but with a very long period of 21 seconds, and a light onshore breeze. The energy is strong (1018), but it's a real tease. The biggest issue is the wind. For the next several days, from the 26th through the 29th, we're mostly stuck with a moderate cross-onshore breeze from the SSW or WSW. The waves are there, bumping up to 4ft with strong energy (over 1000), but it's going to be a bumpy, chop-filled ride. It's a long stretch of mediocrity.

Now, hold onto your boards, because the best window is the very end of the forecast. On the 31st of July, we see a proper S swell start to fill in. Friday morning has a clean 5ft S swell with a 15-second period, and the combined energy is very strong (1168). The wind is a light cross-onshore, which is the best we've seen in a while. This is your first real window.

But the crown jewel is Saturday the 1st of August. The morning shows a solid 7ft S swell with a 14-second period and a massive combined energy of 1561. That's some serious grunt. The wind is light cross-onshore again. This is the one. It's a big swell, over 5ft, so it's not for beginners, and at 7ft, it's getting into the expert-only zone, especially at the jetty. The long period (14 seconds) is groundswell, and it will be powerful. The size and wind combo make it the clear standout of the entire 16 days. Expect a crowd, as this spot is often packed.

After that, the swell backs off quickly. Sunday the 2nd and Monday the 3rd drop back to 5ft and then 3ft, with the energy falling off a cliff. The winds stay light, but the pulse is gone. By Tuesday the 4th, we're down to a tiny 2ft SSW swell with weak energy (213). The run is over.

So, to sum it up: the first week is a write-off for quality. The middle of the window is a long, frustrating stretch of size with bad wind. The time to strike is Friday the 31st of July morning, and absolutely Saturday the 1st of August morning. That's the one. Get out there and get some.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 24°C on Wed afternoon, min 21°C on Mon morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 26°C on Sat afternoon, min 21°C on Thu night). Wind will be generally light.

Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
2
1
1
3
2
0
3
2
1
2
2
2
4
2
1
3
1
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SSW
15
0.9
SW
16
0.8
SSW
16
1.3
SSW
16
1
SSW
15
1.1
SSW
15
1
SSW
14
1
SSW
14
1.5
S
14
1.5
S
14
1.4
S
13
1.4
S
13
0.7
SW
24
1.2
SSW
13
0.9
SW
21
0.9
SW
21
0.7
SW
21
1.2
SW
19
1.1
SW
19
1.1
SW
18
1.1
SW
18
Wave Graph
Metric surfscale
Energy kJ
398
367
334
827
474
559
437
394
843
818
694
673
563
499
664
664
450
1100
863
743
799
Wind (km/h)
10
WSW
10
W
5
SW
15
SW
15
W
5
WSW
10
SW
20
WNW
5
W
10
WSW
15
W
5
SSW
15
SW
10
SW
5
S
10
WSW
15
W
5
SW
20
SSW
20
S
10
SSW
Wind State
on
cross-on
on
on
cross-on
glassy
on
cross-on
glassy
cross-on
cross-on
cross-on
on
on
glassy
on
cross-on
on
cross-on
cross-on
cross-on
High Tide
3:02PM1.87m
3:37AM1.29m
3:53PM1.88m
5:50AM1.24m
4:47PM1.90m
7:37AM1.30m
5:41PM1.94m
8:30AM1.38m
6:30PM2.00m
9:02AM1.44m
7:14PM2.08m
9:28AM1.49m
7:53PM2.15m
Low Tide
8:03AM0.79m
10:06PM0.88m
8:42AM0.98m
11:35PM0.77m
9:32AM1.13m
00:43AM0.64m
10:46AM1.22m
1:32AM0.51m
12:00PM1.25m
2:11AM0.40m
12:56PM1.23m
2:45AM0.31m
1:39PM1.18m
3:17AM0.24m
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:54
5:54
5:54
5:56
5:56
5:56
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:57
7:57
7:55
7:54
7:54
7:53
7:52
 mm
Temp °C
22
23
22
23
23
22
23
24
21
24
24
22
23
24
22
25
26
23
24
23
23
Feels °C
24
23
24
23
21
23
23
23
22
25
24
24
24
24
24
26
26
25
25
23
25
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Oceanside Harbor Surf forecast

The above surf forecast table for Oceanside Harbor provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Oceanside Harbor can be found by selecting the local surf guide option on the grey menu. Our Oceanside Harbor 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 (Oceanside Harbor) 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 Oceanside Harbor 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.

Oceanside Harbor is 8 km (5 miles) from the city of Oceanside. If you plan a vacation in San Diego County, look for hotels and other accommodation in Oceanside. Oceanside has rooms for a wide range of budgets as well as car hire and transport links.

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