Oceanside Harbor Surf Break

Lat Long: 33.26° N 117.44° W

Oceanside Harbor Surf Forecast and Surf Report

Issued: 4 am 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Oceanside Harbor sea temperature is
22.2° C
2.3° 

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 18 Aug 2026:

  • Best quality surf: Monday 24 Aug, 5AM (local time) - 2.5ft (0.8m), 14s period, SSW swell with glassy winds.
  • Most powerful swell: Wednesday 19 Aug, 5PM (local time) - 3ft (0.9m), 16s period, SSW swell with 387 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 18 Aug, 11PM (local time) - 1.5ft (0.5m), 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 Tuesday (Aug 18) at 11PM. The primary swell is predicted to be 0.5m and 16s period with a secondary swell of 0.7m and 6s. 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 0.9m 16s and forecast to arrive on Wednesday (Aug 19) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Tue 18th Aug)1.5ft (0.5m) 16s
Best Surf 5AM (Mon 24th Aug)2.5ft (0.8m) 14s
Most Powerful 5PM (Wed 19th Aug)3ft (0.9m) 16s

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


The Lowdown

Alright folks, Rusty here. Let's take a look at what's happening at Oceanside Harbor over the next couple of weeks.

Honestly, it's a bit of a flat spell to be straight with you. For a spot that's usually on the go, we're looking at a real quiet stretch. The water's feeling weirdly warm too, running about 2° warmer than what you'd expect for this time of year up here at the harbor – that's definitely noticeable.

We kick things off on Tuesday, August 18th, with the first small pulses of surf. The swell is coming from the SSW, kind of long-period around 16 to 17 seconds, but it's only pushing 2 ft. It's a groundswell, so those long waits between sets are a thing, but the energy is pretty mild at 385. The wind is light out of the WSW, so the mornings are holding clean, but the afternoon gets that cross-on kink. It’s really small and the setup isn't ideal for the jetty.

Wednesday the 19th sees a tiny bump to 3 ft from the same SSW direction. The combined energy nudges up to 451, which is still on the low side of moderate. Mornings are your best bet when the wind is light and offshore, but we're talking about marginal waves at best.

The rest of this week and into the next just drifts along. From Thursday the 20th right through to the end of August, we're stuck with tiny swell – nothing over 3 ft, and a lot of mornings around 2 ft or 2 ft. The swell direction hangs in the SSW to SW window, with periods that vary but don't really change the story. The combined energy dips well below 400 most days, and the wind is a constant cross-on, either light or a gentle breeze, keeping things choppy and uninviting for a proper paddle. This stretch from the afternoon of the 21st through to the 27th is a real dead zone.

There is a tiny glimmer as we tick over into the first week of September. The morning of Sunday the 30th of August shows a bit more juice, with the swell reaching 3 ft from the SSW with a 15-second period and combined energy of 474. The wind is still a cross-on, but it's light. The following Monday the 31st holds similar 3 ft to 3 ft swell. The problem is, all these sessions are rated as poor or marginal.

Looking way out to that first week of September, the swell hangs in there between 2 ft and 3 ft, but the wind stays on the wrong side of the compass with a gentle cross-on breeze. It’s going to look pretty average.

So, where's the standout? I can't give you one. The best on offer might be Wednesday morning, August 19th, with that 3 ft swell and light offshore wind making for the cleanest surface. It's small, but at least it won't be a complete mess. For the rest, you’re waiting on a real pulse, and this forecast doesn't show one. It's more of a time to clean the wax off your boards than a time to be in the water.

Rusty.

Short Range Forecast

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

Days 4-6 Weather Summary

Some drizzle, heaviest during Sun afternoon. Warm (max 25°C on Fri morning, min 23°C on Fri morning). Wind will be generally light.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
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
0
2
1
1
1
1
1
2
1
0
2
0
1
2
0
1
1
0
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
SSW
16
0.7
SSW
17
0.8
SSW
15
0.9
SSW
16
0.9
SSW
16
0.8
SSW
15
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
0.7
SSW
13
0.6
SSW
13
0.6
SSW
13
0.4
SW
18
0.6
SSW
15
0.7
SSW
14
0.5
SW
19
0.5
SW
18
0.8
SSW
14
0.6
SW
18
0.6
SW
17
0.7
SW
17
Wave Graph
Metric surfscale
Energy kJ
232
243
272
377
387
249
236
236
226
156
137
135
90
167
218
177
155
269
197
179
273
Wind (km/h)
10
WSW
10
W
5
W
10
WSW
10
WSW
5
S
10
SW
10
SW
0
SSW
10
SW
10
SW
0
SSW
10
WSW
10
WSW
5
W
10
W
10
SSE
10
W
15
WSW
10
W
10
WNW
Wind State
on
cross-on
glassy
on
cross-on
cross-on
on
on
glassy
on
on
glassy
cross-on
cross-on
glassy
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
1:41PM1.88m
3:24AM1.21m
2:34PM1.82m
3:47PM1.80m
8:25AM1.36m
5:06PM1.83m
8:27AM1.43m
6:08PM1.91m
8:41AM1.49m
6:56PM2.01m
8:58AM1.55m
7:35PM2.10m
Low Tide
9:16PM0.81m
7:02AM1.12m
10:59PM0.76m
00:19AM0.65m
10:09AM1.35m
1:10AM0.54m
11:57AM1.32m
1:47AM0.43m
12:51PM1.24m
2:18AM0.34m
1:31PM1.14m
2:46AM0.27m
clear
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
clear
part cloud
part cloud
clear
clear
part cloud
cloud
rain showers
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:13
6:15
6:16
6:16
6:16
6:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:31
7:30
7:30
7:29
7:27
7:25
7:24
 mm
1
Temp °C
23
24
22
25
25
23
24
24
23
25
25
24
25
25
24
25
24
25
26
25
23
Feels °C
24
24
23
26
25
25
25
25
25
26
25
26
25
25
26
27
24
26
26
24
25
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Oceanside Harbor:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Oceanside Harbor surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest