Oceanside Harbor Surf Break

Lat Long: 33.26° N 117.44° W

Oceanside Harbor Surf Forecast and Surf Report

Issued: 4 pm 27 Aug 2026 (local time)

Forecast update in  hr  min

Today's Oceanside Harbor sea temperature is
23.3°C
3.4° 

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 28 Aug 2026:

  • Best quality surf: Friday 28 Aug, 2AM (local time) - 2.5ft (0.7m), 18s period, SSW swell with glassy winds.
  • Most powerful swell: Saturday 29 Aug, 2AM (local time) - 4.5ft (1.3m), 17s period, SSW swell with 932 kJ wave energy.
  • Next surfable swell (1★+): Thursday 27 Aug, 8PM (local time) - 3.5ft (1.0m), 11s period with S 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 Thursday (Aug 27) at 8PM. The primary swell is predicted to be 1.0m and 11s period with a secondary swell of 0.6m and 14s. 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 1.3m 17s and forecast to arrive on Saturday (Aug 29) at 2AM. Winds are predicted to be glassy at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Thu 27th Aug)3.5ft (1.0m) 11s
Best Surf 2AM (Fri 28th Aug)2.5ft (0.7m) 18s
Most Powerful 2AM (Sat 29th Aug)4.5ft (1.3m) 17s

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


The Lowdown

Alright folks, Rusty here. Gotta be straight with you, looking at the next couple of weeks, it’s mostly a waiting game. There’s surf on the charts, but the quality is a real mixed bag, and most of it looks pretty marginal. We’re looking at a long stretch of so-so conditions before a couple of interesting windows pop up.

We’ll start with Oceanside Harbor here on the coast. Water temp is sitting at 74°, which is much warmer than usual for this time of year – that’s a weird one.

First up, Thursday morning the 27th. We’ve got some waist-high swell at 4 ft coming from the S, with a solid 12-second period. The combined energy is moderate at best (574). The wind is light and onshore from the SW, so it’ll be a little choppy. It’s a bit of a marginal one, not terrible, but nothing to get worked up about.

Friday the 28th and Saturday the 29th are a similar story. Swell drops off a touch, winds stay light and onshore. Saturday afternoon sees the wind pick up to 9 mph from the W, turning it cross-onshore and bumpy. The scores are low – these are days for a quick dip if you’re desperate, not a mission.

Sunday the 30th through Tuesday the 1st of September is more of the same: small, weak swell, and the wind is a constant issue. On Monday the 31st, the morning sees a little 3 ft S swell with 13-second period, but it’s onshore. The following days are a real drag; small, cross-onshore, and choppy. The forecast shows a lot of zeros here.

Wednesday the 2nd of September looks poor. The swell is only about 4 ft from the SSW but the wind is up to 12 mph, making it a messy, choppy affair. Not worth your time.

Now, Thursday the 3rd of September is where we get a little flicker. The morning shows a bump in size to 5 ft from the SSW, period of 13 seconds, and the combined energy is getting up there (911). The wind is still a light cross-onshore from the WNW, which keeps it from being perfect, but that’s the strongest swell of the whole run so far. It’s still a “marginal” call, but if you’re itching for something with a bit more push, that’s the best of a bad bunch. It’s right on the cusp of being too much for beginners.

Friday the 4th of September drops back down. Light onshore wind, cleanup period southwest swell in the 3 ft range.

Saturday the 5th through Sunday the 6th of September are another flat spell. Winds are light and variable, but the swell is weak. The scores are poor.

Now, mark your calendars. Monday, September the 7th is the standout. The wind goes glassy, with a slight air from the SSW at just 3 mph. The swell is only 3 ft from the SSW with a decent 14-second period, and combined energy (396) is still moderate. But that glassy morning wind will make the Harbour look like a lake. For a beach/jetty setup with a west exposure, that’s a rare treat. The crowds here are often a factor, so get out early for the cleanest lines. This is the one to aim for.

Tuesday the 8th through to the end of the run looks like a return to the same old story: small, weak, and a cross-onshore breeze ruining any chance of clean waves. Tuesday the 8th has a long period swell (18 seconds) from the SW at only 2 ft – too long for the beach break to hold shape properly, it’ll just close out. The rest of the week is a write-off, with mostly “poor surf conditions” labels.

So, nutshell: a long, frustrating gap of mostly poor surf, then one absolute golden window on the morning of Monday, September 7th when it goes glassy. Thursday the 3rd has the most size, but the wind is dirty. After the 7th, it’s back to small and choppy again.

Stay patient, mates. The 7th is the day.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 27°C on Fri morning, min 22°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 11mm), heaviest on Tue night. Warm (max 24°C on Sun afternoon, min 20°C on Sun night). Wind will be generally light.

Thu
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
3
1
2
3
1
1
2
1
0
3
1
0
2
0
0
0
2
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
S
11
0.7
SSW
18
0.8
SSW
17
0.7
SSW
19
1.3
SSW
17
1.1
SSW
17
1.3
SSW
16
1.2
SSW
16
1.1
SSW
15
1
SSW
14
0.9
SSW
14
0.8
SSW
14
0.7
SSW
14
0.8
SSW
13
0.9
S
11
1
S
11
0.7
SSW
13
1.1
SSW
12
1.3
SSW
13
1.3
SSW
12
Wave Graph
Metric surfscale
Energy kJ
231
270
351
325
932
692
788
706
537
400
321
261
161
198
196
251
165
379
498
467
Wind (km/h)
10
SW
5
SSE
10
SW
10
SW
5
SSE
15
SW
10
WSW
10
S
15
SSW
15
SW
5
S
10
SW
15
W
5
NNW
10
W
20
WNW
20
WNW
5
WSW
15
WNW
10
WNW
Wind State
on
glassy
on
on
glassy
on
cross-on
cross-on
on
on
glassy
on
cross-on
glassy
cross-on
cross
cross
on
cross
cross
High Tide
9:18PM2.17m
10:17AM1.83m
9:53PM2.09m
10:39AM1.90m
10:30PM1.96m
11:04AM1.97m
11:10PM1.79m
11:32AM2.02m
11:57PM1.60m
12:06PM2.03m
00:58AM1.39m
12:48PM2.03m
2:40AM1.23m
Low Tide
3:15PM0.84m
4:00AM0.29m
3:51PM0.76m
4:23AM0.38m
4:31PM0.69m
4:46AM0.49m
5:13PM0.65m
5:10AM0.64m
6:02PM0.64m
5:34AM0.79m
7:03PM0.65m
5:58AM0.95m
8:23PM0.65m
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
rain showers
light rain
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:20
6:22
6:22
6:22
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:21
7:20
7:19
7:16
7:15
7:15
7:14
 mm
7
4
Temp °C
26
24
27
26
25
27
26
23
24
24
22
23
23
21
24
24
24
22
23
23
Feels °C
28
28
29
27
28
28
26
25
23
23
23
23
22
21
23
22
22
23
25
24
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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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