Oceanside Harbor Surf Break

Lat Long: 33.26° N 117.44° W

Oceanside Harbor Surf Forecast and Surf Report

Issued: 10 pm 24 Aug 2026 (local time)

Forecast update in  hr  min

Today's Oceanside Harbor sea temperature is
23.2°C
3.3° 

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 25 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★+): Tuesday 25 Aug, 2AM (local time) - 2.5ft (0.7m), 17s period with SW 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 Tuesday (Aug 25) at 2AM. The primary swell is predicted to be 0.7m and 17s period with a secondary swell of 0.6m and 13s. 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+) 2AM (Tue 25th Aug)2.5ft (0.7m) 17s
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

G’day, Rusty here. Let’s break down the waves for Oceanside Harbor.

Right off the bat, this stretch looks pretty grim. For the first week and a half, there’s almost nothing worth your time. The water is sitting at an unusual 74°, which is much warmer than usual for this time of year—good for a quick dip, not much else.

Monday the 24th and Tuesday the 25th are flat, with poor conditions and tiny swells of 2ft to 3ft from the SW. The combined energy is weak to moderate (340–437), and the period is long—16 to 17 seconds—meaning those are long-period groundswells. At a beach/jetty setup like this, that long period will cause the waves to break too straight and won’t form well. Wednesday the 26th gives a slight bump to 5ft from the S, with moderate energy (900), but the wind turns cross-onshore, making it choppy. Still only marginal. The same story continues: small and messy swell with onshore or cross-onshore winds through the end of August. Periods stay long (11–19 seconds), but the onshore flow ruins the shape for a beach break. Honestly, this is more interesting for kite surfing than paddle surfing.

The morning of Friday the 4th of September shows a bit more swell at 3ft from the SSW, with a 17-second period and moderate energy (686). The wind is light and onshore, so it’s still messy. But the afternoon of the 4th is the first real standout. Swell grows to 4ft from the SSW, with a very strong combined energy of 1028, and a 17-second period. That’s a true groundswell. The cross-onshore breeze holds it back from perfection, but the energy is undeniable. The following morning, Saturday the 5th of September, is your best call of the entire outlook. Swell is 4ft from the SSW, 16-second period, with moderate-to-strong energy (774). The wind shifts to a light cross-offshore from the NNW, which will clean up the surface nicely. The forecast says “expect very good surf conditions.” For Oceanside Harbor, that’s your window. The long period might make it a bit straight at the beach, but with clean conditions and solid energy, it’s worth paddling out. That afternoon stays clean with light winds, too.

From Sunday the 6th onward, it drops off again—smaller swell, moderate to fresh cross-onshore winds, and poor conditions. The Tuesday the 8th sees a 3ft SSW swell with a 14-second period and moderate energy (568), but the wind stays onshore.

So, if you’ve got patience, aim for Saturday morning, the 5th of September. That’s the only clear standout. The rest is a waiting game.

Rusty

Short Range Forecast

Mostly dry. Warm (max 25°C on Tue morning, min 22°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

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

Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
0
3
1
1
2
2
2
3
1
1
4
1
2
2
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)
0.7
SW
17
0.7
SW
16
0.8
S
13
1.3
S
13
1.4
S
12
1.4
S
12
1.3
S
11
1.2
S
12
1.1
S
11
0.7
SSW
18
0.8
SSW
17
0.7
SSW
19
1.3
SSW
17
1
SSW
17
1.2
SSW
16
1.2
SSW
16
1.1
SSW
15
1
SSW
14
0.9
SSW
14
Wave Graph
Metric surfscale
Energy kJ
273
264
229
595
572
553
401
383
279
270
351
325
932
587
733
706
537
400
321
Wind (km/h)
5
S
10
WSW
10
WSW
0
SE
15
SSW
15
S
10
SSE
10
SW
10
SW
5
S
10
W
15
W
0
WSW
10
WSW
10
WSW
5
S
15
SSW
10
SW
5
SSE
Wind State
glassy
on
cross-on
glassy
cross-on
cross-on
cross
on
on
glassy
cross-on
cross-on
glassy
on
cross-on
cross-on
cross-on
on
cross
High Tide
9:16AM1.61m
8:10PM2.17m
9:35AM1.68m
8:44PM2.20m
9:55AM1.75m
9:18PM2.17m
10:17AM1.83m
9:53PM2.09m
10:39AM1.90m
10:30PM1.96m
11:04AM1.97m
11:10PM1.79m
Low Tide
2:46AM0.27m
2:06PM1.04m
3:12AM0.24m
2:40PM0.94m
3:36AM0.24m
3:15PM0.84m
4:00AM0.29m
3:51PM0.76m
4:23AM0.38m
4:31PM0.69m
4:46AM0.49m
5:13PM0.65m
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:18
6:18
6:20
6:20
6:20
6:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:23
7:22
7:21
7:20
7:19
7:16
 mm
Temp °C
23
25
25
24
25
25
23
25
25
25
26
27
24
26
25
23
24
24
22
Feels °C
27
27
25
26
26
26
24
26
26
27
26
27
26
27
25
26
24
24
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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