Oceanside Harbor Surf Break

Lat Long: 33.26° N 117.44° W

Oceanside Harbor Surf Forecast and Surf Report

Issued: 10 am 25 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, 8PM (local time) - 3.5ft (1.0m), 13s 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 Tuesday (Aug 25) at 8PM. The primary swell is predicted to be 1.0m and 13s period with a secondary swell of 0.6m and 16s. 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 (Tue 25th Aug)3.5ft (1.0m) 13s
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 on the menu for Oceanside Harbor over the next couple of weeks.

Right off the bat, it's a bit of a slow start. The water is sitting at 74°, which is a solid 6° warmer than normal for this time of year – that's a real standout, bathwater warm. But the surf? It's small and pretty average. There's a long-period groundswell coming in from the SW on the 25th, with a 16-second period, but the size is only 2ft. That long period is good for shape, but the energy is weak (400). The wind is light onshore, which won't help. This is marginal stuff at best.

The real action doesn't pick up until later. Wednesday the 26th sees a bump in swell to 4ft from the S, with a 12-second period. The combined energy jumps to a moderate 807, which is the best we'll see. The wind stays light onshore, but it's clean enough. This is the best the first week has to offer, but it's still just a "marginal" call. Thursday the 27th holds similar 4ft S swell, with light wind, but it's nothing to write home about. The rest of the first week into early September is a lot of the same story: small swell, cross-onshore winds, and a lot of "poor" or "marginal" conditions.

There's a real lull from the 31st of August through the 2nd of September. The swell drops, the wind gets messy, and the energy dips. It's a dull stretch.

Now, heading into the second week, things might get a little more interesting. On the 3rd of September, we see a long-period SSW swell creeping in at 18 seconds, but it's only 3ft. The energy is moderate (527). By the 5th of September, the swell rises to 4ft from the SSW, but the wind is a stubborn cross-onshore breeze, making it choppy. The energy is moderate (780), but it's not clean. Looking further out to the 9th of September, there's a similar 3ft SW swell with a 18-second period and moderate energy (645), but again, the wind is onshore or cross-onshore.

Honestly, there's no true standout session in this 16-day window. The biggest bump in energy is on the 26th, but even that is just a "marginal" score. The consistent onshore and cross-onshore wind is the real killer here. This is a spot for the die-hards who don't mind a little chop, but for a clean, fun wave, you'll be waiting. If you're a kiter, this setup might look more appealing than it does for a surfer.

Keep your eyes on the forecasts, things can change. For now, it's a waiting game.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 26°C on Wed morning, min 22°C on Tue morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 27°C on Fri morning, min 20°C on Sun night). Wind will be generally light.

Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
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
1
3
1
2
1
2
2
3
2
2
4
1
1
2
1
0
2
0
0
2
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
16
0.8
S
13
1.3
S
13
1.3
S
12
1.3
S
12
1.1
S
11
1.1
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
1.3
SSW
16
1.2
SSW
16
1.1
SSW
15
1
SSW
15
0.9
SSW
14
0.9
SSW
14
0.7
SSW
14
0.7
SSW
13
Wave Graph
Metric surfscale
Energy kJ
264
229
599
485
461
272
333
279
270
351
325
932
587
788
706
537
405
321
321
178
154
Wind (km/h)
10
WSW
10
WSW
5
SSW
10
SW
5
SW
10
SSE
10
SW
10
SSW
0
WSW
10
WSW
10
W
5
WSW
10
WSW
10
WSW
5
SSE
15
SSW
10
WSW
10
SSE
10
SW
10
WSW
0
ESE
Wind State
cross-on
on
glassy
on
on
cross-on
on
on
glassy
cross-on
cross-on
glassy
cross-on
cross-on
cross
on
on
cross-on
on
on
glassy
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
11:32AM2.02m
11:57PM1.60m
Low Tide
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
5:10AM0.64m
6:02PM0.64m
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:18
6:18
6:20
6:20
6:20
6:22
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
7:15
 mm
Temp °C
24
25
24
26
26
24
26
26
25
27
27
25
26
26
23
24
24
22
23
23
22
Feels °C
26
26
27
27
27
26
27
27
27
28
27
27
28
26
25
24
24
24
23
22
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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