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St Marys Rivermouth Surf Forecast
/ Florida – North (78 breaks) / Florida (155 breaks) /
St Marys Rivermouth surfForecast / Florida – North / USA
12 Day Weather and Surf, issued 7 am Monday 07 Jul 2025 EDT
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 Wednesday (Jul 09) at 8AM. The primary swell is predicted to be 0.4m and 9s period with a secondary swell of 0.3m and 9s. 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 1.0m 4s and forecast to arrive on Thursday (Jul 10) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Friday (Jul 11) at 8PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Wed 9th Jul) | 1.5ft (0.4m) 9s |
| Best Surf | 8AM (Wed 9th Jul) | 1.5ft (0.4m) 9s |
| Most Powerful | 5PM (Thu 10th Jul) | 3.5ft (1.0m) 4s |
Table - best surf conditions forecast for St Marys Rivermouth over the next 12 days.
Monday 07 | Tuesday 08 | Wednesday 09 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 15 | 15 | 8 | 8 | 8 | 8 | 9 | 8 | 7 | 10 | 4 | 5 | 7 | 4 | 6 | 8 | 4 | 8 | 7 | 7 | 5 | 7 | 7 | 7 | 6 | 6 | 6 | 7 | 5 | 6 | 6 | 6 | 5 | 10 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 10 | 4 | 16 | 1 | 22 | 11 | 16 | 42 | 17 | 2 | 38 | 0 | 0 | 35 | 0 | 0 | 32 | 45 | 0 | 0 | 0 | 0 | 0 | 10 | 1 | 2 | 1 | 29 | 0 | 0 | 63 | 63 | 53 | 2 | 0 | 49 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | off | cross- off | cross | off | off | cross | cross- off | cross- off | cross- off | off | off | cross | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | cross- off | cross- off | cross- off | cross | cross | cross- off | cross- off | cross | cross- off | glass | cross | cross- off | cross- on | cross | off |
High Tide / height (m) | 6:50PM 1.79 | 7:00AM 1.45 | 7:36PM 1.83 | 7:47AM 1.48 | 8:20PM 1.86 | 8:32AM 1.51 | 9:03PM 1.88 | 9:18AM 1.54 | 9:45PM 1.89 | 10:03AM 1.57 | 10:27PM 1.88 | 10:48AM 1.61 | 11:09PM 1.87 | 11:34AM 1.66 | 11:53PM 1.83 | 12:22PM 1.71 | 12:39AM 1.78 | 1:12PM 1.76 | 1:29AM 1.72 | 2:06PM 1.81 | 2:23AM 1.65 | 3:06PM 1.86 | 3:24AM 1.59 | |||||||||||||
Low Tide / height (m) | 12:36PM 0.11 | 1:39AM 0.20 | 1:22PM 0.08 | 2:23AM 0.16 | 2:08PM 0.05 | 3:05AM 0.11 | 2:51PM 0.02 | 3:45AM 0.07 | 3:34PM -0.01 | 4:23AM 0.04 | 4:17PM -0.02 | 5:03AM 0.01 | 5:02PM -0.00 | 5:44AM -0.02 | 5:50PM 0.03 | 6:29AM -0.04 | 6:44PM 0.07 | 7:17AM -0.05 | 7:44PM 0.11 | 8:10AM -0.06 | 8:48PM 0.14 | 9:06AM -0.07 | 9:54PM 0.15 | |||||||||||||
Monday 07 | Tuesday 08 | Wednesday 09 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||||||||||||
| Sunrise | 6:28 | - | - | 6:28 | - | - | 6:28 | - | - | 6:30 | - | - | 6:30 | - | - | 6:31 | - | - | 6:31 | - | - | 6:31 | - | - | 6:33 | - | - | 6:33 | - | - | 6:33 | - | - | 6:33 | - | - |
| Sunset | - | 8:31 | - | - | 8:30 | - | - | 8:30 | - | - | 8:30 | - | - | 8:30 | - | - | 8:30 | - | - | 8:30 | - | - | 8:30 | - | - | 8:30 | - | - | 8:29 | - | - | 8:29 | - | - | 8:28 | - |
 | |  | | | |  |  |  | | | | | |  |  | | | | | | | | | | | | | |  | | | | | | | |
Rain (mm) | - | - | - | - | - | - | 1 | - | 6 | - | 2 | 1 | - | - | 2 | - | - | 2 | 1 | - | 2 | - | 15 | 3 | 2 | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 28 | 30 | 30 | 29 | 30 | 29 | 28 | 30 | 28 | 28 | 30 | 28 | 28 | 32 | 29 | 29 | 32 | 29 | 30 | 34 | 29 | 31 | 32 | 26 | 27 | 27 | 27 | 28 | 29 | 28 | 29 | 30 | 29 | 31 | 32 | 31 |
| Feels °C (?) | 31 | 31 | 32 | 32 | 31 | 30 | 32 | 33 | 29 | 31 | 33 | 28 | 30 | 33 | 31 | 31 | 34 | 32 | 32 | 36 | 31 | 34 | 34 | 31 | 31 | 30 | 29 | 29 | 29 | 30 | 32 | 30 | 30 | 33 | 33 | 32 |
Short Range Forecast: Light rain (total 7mm), mostly falling on Wed night. Warm (max 30°C on Mon afternoon, min 24°C on Wed night). Wind will be generally light. | Days 3-6 Weather Summary Light rain (total 7mm), mostly falling on Fri night. Warm (max 32°C on Fri afternoon, min 24°C on Thu morning). Wind will be generally light. | Days 6-9 Weather Summary Heavy rain (total 23mm), heaviest during Mon afternoon. Warm (max 34°C on Sun afternoon, min 25°C on Sun morning). Wind will be generally light. | Long Range Forecast: Mostly dry. Warm (max 32°C on Fri afternoon, min 25°C on Wed morning). Wind will be generally light. | |||||||||||||||||||||||||||||||||
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Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
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.
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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