The Rivermouth Surf Break

Lat Long: 36.96° N 122.02° W

The Rivermouth Surf Forecast and Surf Report

Issued: 4 pm 28 Jul 2026 (local time)

Forecast update in  hr  min

Today's The Rivermouth sea temperature is
15.6° C
1.5° 

The Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


The Rivermouth surf forecast from 29 Jul 2026:

  • Best quality surf: Wednesday 29 Jul, 5PM (local time) - 3.5ft (1.1m), 16s period, SSW swell with glassy winds.
  • Most powerful swell: Sunday 2 Aug, 5AM (local time) - 6.5ft (2.0m), 9s period, WNW swell with 687 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 29 Jul, 2AM (local time) - 3.5ft (1.1m), 16s period with SSW swell.

Best Forecast Surf Conditions for The Rivermouth this week:

The surf forecast for The Rivermouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 29) at 2AM. The primary swell is predicted to be 1.1m and 16s period with a secondary swell of 1.3m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at The Rivermouth in the next 16 days are 2.0m 9s and forecast to arrive on Sunday (Aug 02) at 5AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 9s period and expected on Saturday (Aug 01) at 11PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Wed 29th Jul)3.5ft (1.1m) 16s
Best Surf 5PM (Wed 29th Jul)3.5ft (1.1m) 16s
Most Powerful 5AM (Sun 2nd Aug)6.5ft (2.0m) 9s

Table - best surf conditions forecast for The Rivermouth over the next 16 days.


The Lowdown

G’day, I’m Rusty, and here’s the surf report from around here.

We’re looking at The Rivermouth, a sandbar that rarely breaks, and when it does, it’s only for the advanced crew.

Starting things off on Tuesday the 28th of July, we’ve got a 4ft SSW swell wrapping in, but the wind is a light cross-shore, so it’s not all that clean. The water temp is sitting at 60°, which is a touch warmer than normal for this time of year – nothing wild, just a little nice on the skin. The combined energy is strong at 1100, but the overall vibe is marginal.

Wednesday the 29th of July is where it gets interesting. The morning is a bit messy with light cross-onshore wind, but the afternoon turns glassy. That 4ft SSW swell at a long 16-second period (that’s proper groundswell) will have some real power and shape, but being a sandbar that rarely breaks, it could straighten out a touch. Still, with glassy conditions, that’s your pick of the week. Combined energy is still solid at 1068.

Thursday the 30th drops a bit to 3ft, but we get glassy afternoon conditions again with a 15-second period. Not huge but clean.

Friday the 31st is similar, smaller at 3ft, with that same afternoon glass.

Heading into August, Saturday the 1st brings a shift to a WNW swell. The morning is 5ft with a short 8-second period and cross-onshore wind, but the afternoon jumps to 6ft with a 9-second period and glassy conditions – that’s a solid bump. Sunday the 2nd holds around 6ft, but the wind goes cross-onshore, so it loses cleanliness.

From Monday the 3rd, things go downhill. The swell stays around 6ft but with onshore wind and marginal conditions. Then from the 4th of August all the way to the 9th, it’s a long flat spell. Swell sizes drop to 1ft to 2ft, energy readings are weak, mostly under 300. There’s a tiny glassy window on the 6th afternoon with 2ft, but it’s barely surfable. That’s a long stretch of poor surf.

Things try to bounce back on the 10th of August with a 4ft WNW swell, but the wind stays cross-onshore, and it’s still marginal. The 11th of August afternoon has glassy conditions with a 4ft WNW swell and combined energy at 421 – worth a look if you’re keen. After that, the 12th drops back to small SSW swell and only marginal conditions.

All up, the best bet is Wednesday the 29th of July afternoon – that glassy SSW groundswell is the standout. After that, there’s a long quiet patch until the second week of August, where the 11th afternoon might give you a glassy little session, but it’s all low confidence. Keep your eyes peeled, because it never stays flat forever around here.

Stay salty,
Rusty

Short Range Forecast

Mostly dry. Warm (max 25°C on Thu afternoon, min 13°C on Wed night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 23°C on Fri afternoon, min 13°C on Fri night). Wind will be generally light.

Tue
28
Wednesday
29
Thursday
30
Friday
31
Saturday
1
Sunday
2
Monday
3
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
1
3
2
1
2
2
1
2
2
1
2
2
1
1
2
1
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
SSW
18
1.1
SSW
16
1.1
SSW
16
1.1
SSW
16
1.1
SSW
16
0.9
SSW
16
0.9
SSW
15
0.9
SSW
15
0.8
SSW
15
0.8
SSW
14
0.9
S
13
1.4
WNW
8
1.8
WNW
9
2
WNW
9
1.9
WNW
9
1.9
WNW
10
1.9
WNW
10
1.7
WNW
10
1.4
WNW
10
1.2
WNW
9
Wave Graph
Metric surfscale
Energy kJ
877
619
612
604
568
435
397
305
284
280
289
284
500
672
612
638
651
506
363
218
Wind (km/h)
5
W
5
NNE
5
SW
5
WSW
5
N
5
SW
5
W
5
NNE
5
SW
5
WSW
0
N
5
SW
5
WSW
0
N
5
SSW
5
SSW
0
ENE
5
S
10
SW
0
E
Wind State
cross
glassy
cross-on
glassy
glassy
cross-on
glassy
glassy
cross-on
glassy
glassy
cross-on
glassy
glassy
cross-on
cross-on
glassy
on
cross-on
glassy
High Tide
10:03PM1.69m
12:40PM1.26m
10:40PM1.66m
12:58PM1.27m
11:17PM1.59m
1:17PM1.30m
11:56PM1.50m
1:39PM1.36m
00:38AM1.39m
2:04PM1.43m
1:28AM1.25m
2:33PM1.52m
2:28AM1.11m
Low Tide
4:25PM0.95m
5:15AM-0.17m
4:57PM0.89m
5:41AM-0.16m
5:30PM0.83m
6:07AM-0.12m
6:06PM0.76m
6:32AM-0.04m
6:49PM0.67m
6:58AM0.09m
7:38PM0.59m
7:26AM0.26m
8:37PM0.49m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:11
6:11
6:13
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:17
8:16
8:16
8:15
8:15
8:14
8:13
 mm
Temp °C
22
19
19
23
18
20
25
19
20
23
19
20
23
19
19
20
16
19
21
17
Feels °C
21
19
19
23
18
19
24
18
20
22
19
20
23
20
19
19
17
18
20
17
  • 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 The Rivermouth Surf forecast

The above surf forecast table for The Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at The Rivermouth can be found by selecting the local surf guide option on the grey menu. Our The Rivermouth 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 (The Rivermouth) 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 The Rivermouth 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.

The Rivermouth is 2 km (1 miles) from Santa Cruz. If you plan a vacation in Santa Cruz, look for hotels and other accommodation in Santa Cruz. Santa Cruz has rooms for a wide range of budgets as well as car hire and transport links.

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