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Surf Forecasts:

St Marys Rivermouth surfForecast / Florida – North / USA

information circle12 Day Weather and Surf, issued 6 am Wednesday 11 Feb 2026 EST
Forecast update in hr  min  s Forecast update imminent
St Marys Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's St Marys Rivermouth sea temperature is
11.4° C
 (Which is 8.3°C colder than average for this time of year)

Best Forecast Surf Conditions for St Marys Rivermouth this week:

The surf forecast for St Marys Rivermouth over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Feb 15) at 1AM. The primary swell is predicted to be 0.8m and 5s period with a secondary swell of 0.2m and 5s. Another secondary swell of 0.1m and 9s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at St Marys Rivermouth in the next 12 days are 1.6m 9s and forecast to arrive on Wednesday (Feb 18) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 8s period and expected on Sunday (Feb 15) at 10PM.

Wave TypeTime (EST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Sun 15th Feb)2.5ft (0.8m) 5s
Best Surf 1AM (Sun 15th Feb)2.5ft (0.8m) 5s
Most Powerful 4AM (Wed 18th Feb)5ft (1.6m) 9s

Table - best surf conditions forecast for St Marys Rivermouth over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Warm (max 22°C on Wed afternoon, min 13°C on Thu morning). Wind will be generally light.

Days 3-6 Weather Summary Moderate rain (total 18mm), heaviest on Sun night. Warm (max 23°C on Sun morning, min 10°C on Mon night). Winds increasing (light winds from the NNW on Mon morning, fresh winds from the NNE by Mon night).

Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.4
ENE
0.3
ENE
0.2
E
0.7
NE
1.1
NE
0.8
ENE
0.5
ENE
0.6
ENE
0.6
NE
0.4
NE
0.6
SE
0.8
SE
0.1
E
0.1
E
1.4
SE
1.6
SE
0.4
NE
0.9
NE
1.4
NE
1.2
ENE
1.7
ENE
Period(s) (?)12121246654554513138835779
Wave
Graph
(?)Metric surfscale
Energy kJ (?)482711138340141214510333300231173142411
Wind
(km/h)
15
W
15
WSW
10
WNW
15
NNE
20
NNE
10
NE
10
NNE
15
NE
10
NNE
10
ESE
15
ESE
10
SSE
15
S
20
SSE
10
SSW
10
SSE
15
NNE
30
NNE
30
NNE
25
NNE
15
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		offcross-
off		cross-
on		ononononcross-
on		crosscross-
on		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
on		ononcross-
on		cross-
on
High Tide
/ height (m)
3:21PM
1.30
4:08AM
1.53
4:20PM
1.33
5:05AM
1.59
5:15PM
1.39
5:55AM
1.66
6:05PM
1.46
6:41AM
1.73
6:51PM
1.55
7:22AM
1.78
7:34PM
1.62
8:02AM
1.81
8:16PM
1.69
Low Tide
/ height (m)
10:04AM
0.29
9:54PM
0.19
10:58AM
0.27
10:49PM
0.15
11:49AM
0.21
11:42PM
0.09
12:35PM
0.14
12:31AM
0.02
1:18PM
0.06
1:18AM
-0.06
1:57PM
-0.02
2:01AM
-0.12
2:34PM
-0.10
2:43AM
-0.16
Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Sunrise7:09--7:09--7:07--7:07--7:05--7:05--7:03--
Sunset-6:09--6:09--6:10--6:12--6:13--6:14--6:14-
cloud
cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
clear
clear
cloud
part cloud
part cloud
rain showers
light rain
cloud
part cloud
cloud
part cloud
part cloud
Rain (mm)
--------------153-----
Temp. °C162219131315171617191919232322181513101115
Feels °C (?)14201810814151317181718202020191384613
  • 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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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our St Marys Rivermouth surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for St Marys Rivermouth at:
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Information about the St Marys Rivermouth Surf forecast

The above surf forecast table for St Marys Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at St Marys Rivermouth can be found by selecting the local surf guide option on the grey menu. Our St Marys 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 (St Marys 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 St Marys 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.

St Marys Rivermouth is 3 km (2 miles) from Fernandina Beach. If you plan a vacation in North Florida, look for hotels and other accommodation in Fernandina Beach. Fernandina Beach has rooms for a wide range of budgets as well as car hire and transport links.

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