Dimas Rivermouth Surf Break

Lat Long: 23.62° N 106.78° W

Dimas Rivermouth Surf Forecast and Surf Report

Issued: 4 am 15 Aug 2026 (local time)

Forecast update in  hr  min

Today's Dimas Rivermouth sea temperature is
31.6° C
1.9° 

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


Dimas Rivermouth surf forecast from 15 Aug 2026:

  • Best quality surf: Sunday 16 Aug, 2AM (local time) - 4ft (1.2m), 15s period, SSW swell with glassy winds.
  • Most powerful swell: Saturday 15 Aug, 11AM (local time) - 4.5ft (1.3m), 16s period, SSW swell with 843 kJ wave energy.
  • Next surfable swell (1★+): Sunday 16 Aug, 2AM (local time) - 4ft (1.2m), 15s period with SSW swell.

Best Forecast Surf Conditions for Dimas Rivermouth this week:

The surf forecast for Dimas Rivermouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 16) at 2AM. The primary swell is predicted to be 1.2m and 15s period with a secondary swell of 0.3m and 3s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Dimas Rivermouth in the next 16 days are 1.3m 16s and forecast to arrive on Saturday (Aug 15) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (MST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Sun 16th Aug)4ft (1.2m) 15s
Best Surf 2AM (Sun 16th Aug)4ft (1.2m) 15s
Most Powerful11AM (Sat 15th Aug)4.5ft (1.3m) 16s

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


Short Range Forecast

Light rain (total 5mm), mostly falling on Mon night. Warm (max 31°C on Sat afternoon, min 26°C on Mon night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 31°C on Thu afternoon, min 26°C on Tue night). Wind will be generally light.

Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
3
2
0
2
1
1
1
1
0
3
1
0
2
0
0
2
1
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)
1.3
SSW
16
1.3
SSW
16
1.2
SSW
15
1.1
SW
15
1.1
SW
14
0.9
SSW
14
0.9
SSW
14
0.9
SSW
15
0.6
SSW
17
0.9
SSW
14
1
SSW
14
1
SSW
16
0.9
SSW
15
0.9
SSW
14
0.8
SSW
14
0.8
SSW
14
0.8
SSW
13
0.7
SSW
13
0.6
SSW
13
0.6
SSW
13
0.8
SSW
14
Wave Graph
Metric surfscale
Energy kJ
843
832
632
489
482
362
357
372
184
347
437
512
414
330
261
250
229
154
111
113
217
Wind (km/h)
10
SSW
15
WNW
0
N
10
SW
15
W
10
ESE
10
SSW
10
W
25
SE
10
S
10
W
5
NE
10
WSW
15
W
5
N
10
WSW
20
WNW
5
NE
10
S
10
SW
5
E
Wind State
cross-on
cross-on
glassy
cross-on
cross-on
cross-off
cross-on
cross-on
cross-off
cross
on
off
on
cross-on
glassy
on
cross-on
glassy
cross
cross-on
glassy
High Tide
10:21AM1.57m
10:13PM1.48m
10:41AM1.56m
10:48PM1.30m
11:00AM1.53m
11:23PM1.13m
11:17AM1.48m
00:08AM0.96m
11:32AM1.43m
11:47AM1.35m
11:25AM1.27m
2:08PM1.28m
Low Tide
4:17PM0.58m
4:18AM0.49m
4:54PM0.60m
4:29AM0.64m
5:33PM0.64m
4:30AM0.76m
6:24PM0.71m
4:08AM0.85m
8:26PM0.75m
11:48PM0.64m
12:03PM1.27m
00:25AM0.51m
clear
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
thunderstorm
part cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:41
5:43
5:43
5:43
5:43
5:43
5:45
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:39
6:38
6:37
6:37
6:37
6:36
6:35
 mm
5
Temp °C
30
31
30
30
31
30
30
31
27
29
30
29
30
30
29
30
31
30
30
31
30
Feels °C
35
35
35
35
35
34
35
34
29
32
33
33
33
33
32
34
35
34
34
35
36
  • 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 Dimas Rivermouth Surf forecast

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

Dimas Rivermouth is 60 km (37 miles) from Mazatlan. If you plan a holiday in Sinaloa, look for hotels and other accommodation in Mazatlan. Mazatlan has rooms for a wide range of budgets as well as car hire and transport links.

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