Dimas Rivermouth surfForecast / Sinaloa / Mexico

information circle16 Day Weather and Surf, issued 10 am Monday 18 May 2026 MST
Forecast update in hr  min  s Forecast update imminent
Dimas Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Dimas Rivermouth sea temperature is
27.3° C
(Which is 1.5°C warmer than normal for this time of year)

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 Monday (May 18) at 11PM. The primary swell is predicted to be 0.9m and 13s period with a secondary swell of 0.4m and 4s. 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 17s and forecast to arrive on Monday (May 25) at 11AM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (MST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Mon 18th May)3ft (0.9m) 13s
Best Surf 2AM (Wed 20th May)1.5ft (0.5m) 21s
Most Powerful11AM (Mon 25th May)4.5ft (1.3m) 17s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 28°C on Mon morning, min 24°C on Mon night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 29°C on Thu afternoon, min 24°C on Sat night). Wind will be generally light.

Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
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)
0
0
2
0
0
3
1
0
3
0
0
2
0
0
1
0
0
1
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)
0.9
SSW
14
0.9
SSW
13
0.9
SSW
13
0.8
SSW
13
0.8
SSW
13
0.5
SW
21
0.7
SSW
15
0.7
SSW
15
0.6
SW
19
0.9
SSW
14
0.9
SSW
15
0.8
SSW
14
0.8
SSW
15
0.8
SSW
15
0.7
SW
16
0.7
SW
16
0.8
SSW
16
0.7
SW
16
0.6
SSW
19
0.8
SSW
15
1
SSW
16
Wave Graph
Metric surfscale
Energy kJ
285
253
249
192
183
224
209
199
303
321
334
264
279
279
255
258
322
245
243
279
499
Wind (km/h)
15
S
15
W
0
NE
10
WSW
15
WNW
0
E
10
SW
15
WNW
5
NNE
10
SSW
10
W
5
ENE
20
SSW
15
SSW
10
NNW
15
W
15
W
10
NNW
15
W
15
WNW
10
NNW
cross-on
on
glassy
on
cross-on
glassy
cross-on
cross-on
glassy
cross-on
on
glassy
cross-on
cross-on
cross
cross-on
cross-on
cross
on
cross-on
cross
High Tide
10:29AM1.33m
9:02PM1.85m
11:28AM1.23m
9:39PM1.72m
12:47PM1.16m
10:18PM1.55m
2:48PM1.17m
11:07PM1.35m
4:21PM1.24m
1:18AM1.17m
4:52PM1.32m
4:01AM1.13m
5:15PM1.41m
Low Tide
2:59PM0.91m
4:29AM0.05m
3:30PM0.99m
5:21AM0.21m
4:02PM1.07m
6:23AM0.38m
4:53PM1.15m
7:46AM0.53m
9:54PM1.13m
9:20AM0.63m
11:16PM0.92m
10:29AM0.69m
11:53PM0.73m
cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:22
5:22
5:22
5:22
5:22
5:22
5:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:43
6:43
6:44
6:44
6:45
6:45
6:45
Temp °C
28
28
25
27
28
26
28
28
26
28
29
27
28
29
27
29
29
26
28
28
26
29
28
26
27
27
27
28
27
27
28
29
29
27
29
29
29
28
28
28
27
28
Swell 1
Height (m)
Direction
Period (s)
0.9
SSW
14
0.9
SSW
13
0.9
SSW
13
0.8
SSW
13
0.8
SSW
13
0.7
SSW
12
0.7
SSW
15
0.7
SSW
15
0.8
SSW
14
0.9
SSW
14
0.9
SSW
15
0.8
SSW
14
0.8
SSW
15
0.8
SSW
15
0.7
SW
16
0.7
SW
16
0.8
SSW
16
0.7
SW
16
0.7
SW
14
0.8
SSW
15
1
SSW
16
Energy kJ
285
253
249
192
183
131
209
199
264
321
334
264
279
279
255
258
322
245
211
279
499
Swell 2
Height (m)
Direction
Period (s)
0.4
WSW
5
0.2
SSW
18
0.4
WSW
4
0.4
SW
17
0.5
SW
16
0.6
SSW
16
0.5
SSW
12
0.6
SSW
12
0.6
SW
19
0.2
SSW
19
0.6
S
12
0.6
SSW
18
0.4
SW
18
0.1
SW
24
0.6
WSW
5
0.4
SSW
10
0.5
WSW
5
0.4
WSW
5
0.6
SSW
19
0.4
SSW
18
0.3
S
9
Energy kJ
10
31
7
74
130
169
81
113
303
37
98
207
80
22
15
35
15
7
243
127
13
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
18
0.1
S
8
0.4
SW
17
0.1
SW
24
0.1
SW
24
0.5
SW
21
0.1
SW
21
0.1
SW
19
0.5
SW
15
0.1
SW
20
0.1
SW
24
0.1
SW
24
0.4
SSW
10
0.2
SSW
21
0.4
SSW
10
0.4
SW
19
0.3
SSW
9
0.3
SSW
9
0.3
WSW
4
Energy kJ
13
1
76
22
22
224
18
15
109
15
22
22
37
44
30
94
16
16
4
Wind waves
Height (m)
Direction
Period (s)
0.5
WSW
5
0.3
WSW
4
0.4
WSW
5
0.3
W
6
0.2
W
6
0.5
SW
6
0.4
WSW
5
0.3
WSW
5
0.5
W
5
0.4
WNW
4
Energy kJ
13
4
7
6
3
18
9
4
13
5
Nearest Offshore or Glassy
Rating
(10 max)
1
2
2
1
1
3
2
2
3
2
2
2
1
2
2
2
2
2
2
3
3
Distance (km)
176
315
0
176
270
0
176
315
0
176
315
0
115
76
30
279
315
30
176
317
30
Best forecast wave conditions in Sinaloa
Rating
(10 max)
2
3
3
2
1
2
2
2
3
Best forecast wave conditions in Mexico
Rating
(10 max)
2
2
3
2
2
3
3
3
3
2
2
2
2
2
2
3
2
3
3
3
3
Header Global
Rating
(10 max)
4
4
4
5
5
5
4
4
4
5
5
7
5
5
7
9
5
4
4
5
6
  • 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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