Oceanside Harbor Surf Break

Lat Long: 33.26° N 117.44° W

Oceanside Harbor Surf Forecast and Surf Report

Issued: 4 am 28 Aug 2026 (local time)

Forecast update in  hr  min

Today's Oceanside Harbor sea temperature is
24.1°C
4.2° 

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: Saturday 29 Aug, 2AM (local time) - 4.5ft (1.3m), 17s 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★+): Friday 28 Aug, 8PM (local time) - 2.5ft (0.8m), 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 Friday (Aug 28) at 8PM. The primary swell is predicted to be 0.8m and 16s period with a secondary swell of 0.6m and 8s. 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 (Fri 28th Aug)2.5ft (0.8m) 16s
Best Surf 2AM (Sat 29th Aug)4.5ft (1.3m) 17s
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. Let’s have a look at what’s cookin’ for Oceanside Harbor over the next couple of weeks.

Right off the bat, I gotta be straight with you – it’s a slow start. We’ve got a solid, long-period groundswell rolling in from the SSW, but the conditions are just not playing ball. The water is sitting at 75°F which is much warmer than normal for this time of year, almost 8°F above average, so that’s a nice surprise if you’re paddling out without a steamer.

Friday, August 28th through Monday, August 31st is a bit of a tease. The swell is there, with a decent energy reading (515 in the morning Friday), but it’s all onshore or cross-onshore wind. The waves are small, around 3ft to 4ft, and the wind is messing ‘em up, making it choppy. It’s technically surfable, but it’s pretty marginal. The long period (17 seconds) from the SSW means there’s some push, but the breeze is ruining that clean face. We’re looking at a few days of 'marginal surf' and 'poor surf conditions' until around Tuesday, September 1st, when things really drop off.

From Tuesday, September 1st all the way through to Thursday, September 10th, it’s a pretty bleak stretch. The swell energy drops way down, and the wind stays stubbornly cross-onshore from the west. Wave heights are mostly under 3ft, and the period gets shorter. The forecast is calling it ‘poor surf conditions’ straight through. There’s a little bump in energy on Thursday, September 3rd morning (848), but that cross-onshore wind is still there, so it’s not gonna be pretty. This is a real quiet patch – about a week and a half of nothing to write home about.

Now, hang in there, because the end of the forecast window starts to show some promise. Friday, September 11th kicks off with a stronger push from the south. The afternoon sees a jump in energy (1042) with 5ft swell from the S, but the period is a shorter 14 seconds. The wind is still cross-onshore, keeping it in the ‘marginal’ category, but the size is definitely there.

Saturday, September 12th morning looks like the best bet of the whole run. The swell holds at 5ft from the S, with moderate energy (941). The wind is still cross-onshore from the SSW, which isn’t ideal, but it’s a light breeze. For a beach/jetty setup like Oceanside Harbor, that’s the cleanest we’ll see. This swell is getting a bit chunky, so it’s more for the advanced crew. The period is 13 seconds, which is a solid groundswell, but the direction is S, which isn’t the optimum W for this spot. Still, it’s the biggest swell we’ve got.

The Pick: The standout is undeniably Saturday, September 12th morning. With 5ft from the S and a light breeze, it’s the only time the size and wind come together for a decent session. It’s still a bit rough around the edges, but compared to the rest of the run, it’s the best we’ve got. The afternoon fades a bit, so get it early.

No real secret spots or hidden gems here – it’s just about waiting for that Saturday pulse. I’ll be out there.

Rusty

Short Range Forecast

Mostly dry. Warm (max 27°C on Fri morning, min 21°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 25°C on Wed morning, min 21°C on Mon morning). Wind will be generally light.

Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
2
4
1
1
2
1
1
2
1
0
2
0
0
1
0
0
3
1
1
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SSW
17
0.7
SSW
19
1.3
SSW
17
1.1
SSW
17
1.1
SSW
16
1.3
SSW
16
1.1
SSW
15
1
SSW
14
0.9
SSW
14
0.8
SSW
14
0.8
SSW
14
0.7
SSW
13
0.6
SSW
13
0.4
SW
18
0.5
SW
18
0.9
SSW
12
1
SSW
12
1.3
SSW
16
1.3
SSW
15
1.3
SSW
14
1.3
SSW
13
Wave Graph
Metric surfscale
Energy kJ
351
325
932
692
627
759
537
400
321
261
213
156
118
106
152
220
318
848
752
722
489
Wind (km/h)
10
SW
10
SSW
5
SE
15
WSW
15
W
5
S
15
SSW
15
WSW
5
SSE
10
SW
15
W
5
NW
15
W
15
W
5
NW
10
W
20
W
5
NNW
10
WSW
15
W
5
NNW
Wind State
on
on
glassy
on
cross-on
cross-on
on
on
glassy
on
cross-on
glassy
cross-on
cross-on
cross
cross-on
cross-on
glassy
on
cross-on
cross-off
High Tide
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
1:48PM2.00m
Low Tide
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
6:24AM1.10m
10:07PM0.59m
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<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
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:20
7:19
7:16
7:15
7:15
7:14
7:12
 mm
Temp °C
27
27
25
27
27
24
25
25
22
23
23
21
24
24
22
25
25
24
25
25
23
Feels °C
30
29
28
28
27
27
25
25
23
23
21
21
23
22
22
24
22
23
24
23
24
  • Map Icons:
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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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