Islas Marietas surfForecast / Nayarit / Mexico

information circle48hr Weather and Surf, issued 5 am Monday 18 May 2026 CST
Forecast update in hr  min  s Forecast update imminent
Islas Marietas surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Islas Marietas sea temperature is
28.3° C
(Which is 2.1°C warmer than normal for this time of year)

How big are the waves at Islas Marietas today?

The current surf forecast for Islas Marietas at 9AM is: 0.3m 18s primary swell from a Southwest direction and 0.6m 6s secondary swell from a West-northwest direction (forecast issued at 05:00am May 18). An open ocean swell of 0.9m 13s is not directed at the surf break. The wind direction is predicted to be glassy.

Time (CST) & DateWave HeightWave Period
Morning (18 May)1ft (0.3m)18s
Afternoon (18 May)1.5ft (0.5m)6s
Evening (18 May)1.5ft (0.4m)17s

Table - waves today at Islas Marietas. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 28°C on Wed afternoon, min 25°C on Mon night). Wind will be generally light.

Monday
18
Tuesday
19
Wednesday
20
Thu
21
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
Rating
(10 max)
0
0
1
0
0
1
1
1
1
1
1
1
1
1
2
1
1
0
2
2
2
1
1
2
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.6
WNW
7
0.6
WNW
6
0.3
SW
18
0.3
SW
18
0.5
WNW
6
0.4
SW
17
0.4
SW
17
0.5
SW
17
0.4
SW
17
0.4
SW
17
0.4
SW
17
0.5
SW
16
0.5
SW
16
0.5
SW
16
0.5
SW
21
0.5
SW
16
0.6
SW
16
0.4
WNW
6
0.6
SW
16
0.6
SW
16
0.6
SW
16
0.6
SW
15
0.6
SW
15
0.6
SW
19
Wave Graph
Metric surfscale
Energy kJ
34
33
50
49
22
107
104
143
107
106
101
132
129
127
224
125
159
14
203
203
201
143
139
303
Wind (km/h)
5
S
5
SE
0
WSW
10
W
10
W
10
NW
10
N
15
NNE
15
NNE
10
NE
5
N
15
NW
15
NW
15
NNW
10
N
10
NNE
10
NNE
10
NNE
10
N
15
NNW
15
NW
15
NW
10
NNE
10
NE
glassy
glassy
glassy
cross
cross-off
cross-off
off
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
off
off
cross-off
cross-off
off
cross-off
cross-off
cross-off
off
cross-off
High Tide
11:20AM1.14m
9:50PM1.58m
12:19PM1.05m
10:27PM1.47m
1:41PM0.99m
11:04PM1.32m
Low Tide
4:32AM-0.05m
3:48PM0.80m
5:19AM0.05m
4:17PM0.87m
6:11AM0.19m
4:45PM0.93m
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:22
6:22
6:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:32
7:34
7:34
7:34
Temp °C
26
26
26
27
27
27
27
26
26
25
26
27
27
27
27
26
26
26
27
27
28
28
27
26
31
31
31
31
30
30
30
28
28
28
29
29
28
29
30
28
28
28
30
28
29
29
29
27
Swell 1
Height (m)
Direction
Period (s)
0.9
SSW
14
0.9
SSW
14
0.9
SSW
13
1
SSW
13
1
SSW
13
1
SSW
13
0.9
SSW
13
0.9
SSW
13
0.9
SSW
13
0.9
SSW
13
0.9
SSW
13
0.9
SSW
12
0.9
SSW
12
0.7
SSW
12
0.8
SSW
12
0.7
SSW
12
0.7
SSW
12
0.7
SSW
12
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
0.8
SSW
13
0.8
SSW
13
0.7
SSW
13
Energy kJ
356
322
312
378
378
372
307
303
298
294
285
224
220
157
198
150
152
152
276
269
254
232
232
176
Swell 2
Height (m)
Direction
Period (s)
0.6
WNW
7
0.6
WNW
6
0.6
WNW
6
0.5
WNW
6
0.5
WNW
6
0.5
WNW
6
0.5
WNW
6
0.5
WNW
6
0.5
WNW
6
0.4
WNW
6
0.4
WNW
6
0.5
SW
16
0.5
SW
16
0.5
SW
16
0.5
WNW
6
0.5
SSW
15
0.6
SW
16
0.7
SW
16
0.6
SW
16
0.6
SW
16
0.6
SW
16
0.6
SSW
19
0.7
SW
19
0.6
SW
19
Energy kJ
34
33
31
22
22
21
20
20
20
13
13
132
129
127
18
131
159
258
203
203
201
251
384
303
Swell 3
Height (m)
Direction
Period (s)
0.4
SSW
12
0.2
SSW
18
0.3
SW
18
0.3
SW
18
0.4
SW
18
0.4
SW
17
0.4
SW
17
0.5
SW
17
0.4
SW
17
0.4
SW
17
0.4
SW
17
0.4
WNW
6
0.4
WNW
6
0.4
WNW
6
0.5
SW
21
0.5
SW
16
0.5
SSW
15
0.4
WNW
6
0.4
WNW
6
0.4
WNW
6
0.4
WNW
6
0.6
SW
15
0.6
SW
15
0.6
SW
15
Energy kJ
56
32
50
49
79
107
104
143
107
106
101
13
14
13
224
125
133
14
14
13
13
143
139
176
Wind waves
Height (m)
Direction
Period (s)
Energy kJ
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
2
2
2
1
1
2
Distance (km)
11
11
0
14
14
0
0
0
0
0
0
0
0
0
0
0
0
11
0
0
0
0
0
0
Best forecast wave conditions in Nayarit
Rating
(10 max)
2
1
1
1
1
1
2
1
1
1
1
1
1
1
2
2
2
2
2
2
2
1
2
2
Best forecast wave conditions in Mexico
Rating
(10 max)
3
3
2
2
2
2
3
3
3
2
2
2
2
2
3
3
3
3
3
2
2
3
3
3
Header Global
Rating
(10 max)
4
4
4
5
4
4
4
4
4
4
4
4
4
4
5
5
4
4
4
5
5
5
4
5
  • 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

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