The Rivermouth surfForecast / CAL – Santa Cruz / USA

information circle16 Day Weather and Surf, issued 4 am Saturday 09 May 2026 PDT
Forecast update in hr  min  s Forecast update imminent
The Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's The Rivermouth sea temperature is
14.3° C
(Which is 2.1°C warmer than normal for this time of year)

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 Saturday (May 09) at 5PM. The primary swell is predicted to be 1.6m and 9s period with a secondary swell of 0.5m and 16s. Another secondary swell of 0.5m and 14s is also forecast. 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 1.6m 11s and forecast to arrive on Sunday (May 10) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 8s period and expected on Saturday (May 09) at 11AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Sat 9th May)5ft (1.6m) 9s
Best Surf 5PM (Sat 9th May)5ft (1.6m) 9s
Most Powerful 2PM (Sun 10th May)5ft (1.6m) 11s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 20°C on Sat afternoon, min 11°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Wed night. Warm (max 20°C on Tue afternoon, min 11°C on Wed night). Wind will be generally light.

Saturday
9
Sunday
10
Monday
11
Tuesday
12
Wednesday
13
Thursday
14
Friday
15
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
2
2
1
1
2
1
1
2
1
0
2
1
0
1
1
1
2
1
2
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
WNW
8
1.6
WNW
9
0.8
SSW
19
1.2
W
11
1.6
WNW
10
1.6
WNW
9
1.5
WNW
9
0.9
SSW
16
1.3
WNW
11
1.2
WNW
11
1.1
WNW
11
0.9
WNW
11
1
W
12
0.9
WNW
11
1.2
WNW
12
0.9
SSW
16
0.9
SSW
16
0.9
SSW
16
0.9
SSW
15
0.9
SSW
15
0.6
SSW
13
Wave Graph
Metric surfscale
Energy kJ
170
413
411
364
522
387
367
404
373
325
270
202
274
206
418
376
371
344
318
376
139
Wind (km/h)
5
SW
10
W
5
NNW
5
SW
5
WSW
5
WNW
5
SSW
10
SW
0
WNW
10
SW
10
SW
5
SE
10
SW
15
SW
5
WSW
5
SW
20
NW
5
NNW
10
WSW
10
NW
5
N
cross-on
glassy
glassy
cross-on
cross-on
glassy
cross-on
cross-on
glassy
cross-on
cross-on
glassy
cross-on
cross-on
cross
cross-on
cross-off
glassy
cross-on
cross-off
glassy
High Tide
6:47PM1.16m
4:38AM1.12m
7:08PM1.23m
5:58AM1.05m
7:32PM1.32m
7:21AM1.04m
7:59PM1.44m
8:39AM1.06m
8:30PM1.56m
9:49AM1.12m
9:03PM1.69m
10:53AM1.18m
9:40PM1.80m
Low Tide
10:48AM0.08m
00:13AM0.84m
11:40AM0.11m
1:03AM0.63m
12:28PM0.17m
1:47AM0.40m
1:13PM0.26m
2:27AM0.14m
1:57PM0.37m
3:09AM-0.10m
2:39PM0.50m
3:51AM-0.32m
3:22PM0.63m
4:35AM-0.48m
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
clear
part cloud
part cloud
part cloud
clear
rain showers
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:03
6:03
6:01
6:01
6:01
6:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:02
8:04
8:05
8:06
8:07
8:07
8:07
2
Temp °C
16
20
15
17
20
14
18
20
15
19
20
14
15
16
14
15
19
16
17
22
16
15
19
15
16
19
14
17
19
15
17
18
14
14
15
12
13
15
12
16
20
15
Swell 1
Height (m)
Direction
Period (s)
1.2
WNW
8
0.5
SSW
16
1.2
WNW
8
1.2
W
11
0.5
SSW
18
1.6
WNW
9
1.5
WNW
9
1.4
WNW
10
1.3
WNW
11
1.2
WNW
11
1.1
WNW
11
0.9
WNW
11
1
W
12
0.9
WNW
11
1.2
WNW
12
1
W
11
1
W
11
0.9
WNW
10
0.9
SSW
15
0.9
SSW
15
0.6
SSW
13
Energy kJ
170
144
150
364
180
387
367
404
373
325
270
202
274
206
418
242
229
163
318
376
139
Swell 2
Height (m)
Direction
Period (s)
0.4
SSW
20
0.5
W
14
0.8
SSW
19
0.7
SSW
18
0.5
SSW
15
0.8
SSW
16
0.8
SSW
16
0.9
SSW
16
0.7
SSW
16
0.8
SSW
15
0.8
SSW
15
0.7
SSW
14
0.7
SSW
14
0.7
W
13
0.6
SSW
13
0.9
SSW
16
0.9
SSW
16
0.9
SSW
16
0.8
W
9
0.3
WNW
16
0.5
SSW
15
Energy kJ
151
106
411
280
125
302
291
366
212
242
242
186
163
168
141
376
371
344
113
52
133
Swell 3
Height (m)
Direction
Period (s)
0.4
WNW
15
0.4
SSW
20
0.7
W
9
0.6
SSW
18
0.1
S
13
0.1
SW
11
0.1
S
12
0.1
S
12
0.2
S
14
0.1
S
11
0.2
S
13
0.2
S
13
0.2
S
13
0.7
SSW
13
0.4
SSW
18
0.2
S
12
0.2
S
10
0.2
S
10
0.2
S
10
0.2
S
10
0.4
WNW
15
Energy kJ
71
131
76
204
4
5
3
3
16
3
14
13
12
158
104
11
8
8
8
8
77
Wind waves
Height (m)
Direction
Period (s)
1.6
NW
8
1.6
WNW
9
1.6
NW
8
0.9
NW
8
1.6
WNW
10
0.4
SSE
3
0.5
S
4
0.5
S
4
0.3
S
4
1
W
9
1
WNW
6
Energy kJ
291
413
297
96
522
4
9
9
2
173
69
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
2
2
2
3
4
2
3
3
2
2
1
2
1
1
2
1
2
1
Distance (km)
2
0
0
2
2
0
66
77
0
77
211
0
38
4
2
103
2
0
2
0
0
Best forecast wave conditions in Santa Cruz
Rating
(10 max)
2
2
3
2
2
3
3
2
1
2
1
3
1
2
2
Best forecast wave conditions in United States
Rating
(10 max)
3
2
4
4
2
3
3
4
3
3
3
3
3
2
3
3
3
3
3
3
3
Header Global
Rating
(10 max)
5
4
4
9
5
5
5
6
9
9
9
9
6
5
5
5
6
5
5
6
5
  • Map Icons:
  • Break
  • 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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