Surf Forecasts:
Winthrop Jetty surf forecast from 4 Sep 2026:
- Best quality surf: Sunday 6 Sep, 8PM (local time) - 3ft (0.9m), 7s period, ENE swell with glassy winds.
- Most powerful swell: Sunday 6 Sep, 2PM (local time) - 5ft (1.6m), 8s period, NE swell with 269 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 8PM (local time) - 3ft (0.9m), 7s period with ENE swell.
Best Forecast Surf Conditions for Winthrop Jetty this week:
The surf forecast for Winthrop Jetty over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 06) at 8PM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.5m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Winthrop Jetty in the next 16 days are 1.6m 8s and forecast to arrive on Sunday (Sep 06) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Friday (Sep 11) at 5AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 6th Sep) | 3ft (0.9m) 7s |
| Best Surf | 8PM (Sun 6th Sep) | 3ft (0.9m) 7s |
| Most Powerful | 2PM (Sun 6th Sep) | 5ft (1.6m) 8s |
Table - best surf conditions forecast for Winthrop Jetty over the next 16 days.
Short Range ForecastMostly dry. Warm (max 28°C on Fri afternoon, min 15°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Wed night. Warm (max 24°C on Mon afternoon, min 15°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 7 | ENE 6 | ENE 6 | NE 7 | ENE 8 | ENE 9 | E 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | NE 4 | E 9 | SE 4 | SE 5 | ESE 9 | SE 10 | SE 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 32 | 34 | 21 | 25 | 112 | 141 | 261 | 173 | 147 | 53 | 98 | 69 | 28 | 16 | 6 | 6 | 5 | 10 | 8 | 4 | 4 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-on | cross-on | cross | cross | on | off | cross | glassy | off | cross-off | on | cross-on | cross | cross-on | cross-off | off | cross-off | cross-off |
High Tide | 5:21PM3.07m | 6:06AM2.58m | 6:24PM3.04m | 7:12AM2.56m | 7:30PM3.04m | 8:21AM2.62m | 8:38PM3.08m | 9:25AM2.74m | 9:42PM3.15m | 10:22AM2.89m | 10:38PM3.21m | 11:12AM3.02m | 11:30PM3.23m | ||||||||
Low Tide | 11:07AM0.33m | 11:56PM0.13m | 12:08PM0.38m | 00:59AM0.15m | 1:12PM0.39m | 2:04AM0.12m | 2:17PM0.34m | 3:07AM0.05m | 3:22PM0.24m | 4:05AM-0.05m | 4:20PM0.10m | 4:57AM-0.12m | 5:14PM-0.01m | ||||||||
 |  |  | |  | | | |  | | | | | | | | |  | | | | |
 | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — |
 | — | 7:13 | — | — | 7:10 | — | — | 7:09 | — | — | 7:07 | — | — | 7:06 | — | — | 7:04 | — | — | 7:02 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | — | — | — |
Temp °C | 25 | 28 | 23 | 20 | 19 | 17 | 18 | 19 | 18 | 20 | 24 | 22 | 22 | 22 | 17 | 18 | 21 | 21 | 25 | 25 | 19 |
Feels °C | 25 | 28 | 24 | 19 | 17 | 14 | 15 | 16 | 17 | 18 | 22 | 19 | 20 | 20 | 17 | 18 | 22 | 20 | 21 | 20 | 14 |
Swell 1 Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 7 | — | — | ENE 7 | ENE 8 | ENE 9 | NE 7 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | NE 4 | E 9 | E 9 | SE 5 | ESE 9 | SE 10 | SE 10 |
| kJ | 32 | 34 | 21 | 25 | — | — | 183 | 173 | 147 | 53 | 98 | 69 | 28 | 16 | 5 | 6 | 2 | 10 | 8 | 4 | 4 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SE 9 | E 10 | NE 6 | — | NE 5 | E 9 | E 8 | E 10 | — | E 10 | SE 4 | SE 5 | — |
| kJ | — | — | — | — | — | — | — | — | 3 | 53 | 18 | — | 1 | 2 | 6 | 2 | — | 2 | 1 | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | E 10 | SE 10 | E 10 | E 8 | E 8 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 4 | 2 | 1 | 1 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | NNW 3 | NNE 4 | ENE 6 | ENE 6 | NE 7 | — | — | WNW 2 | — | — | — | ENE 3 | ESE 3 | E 4 | SE 4 | SSW 3 | W 3 | WNW 3 | NW 3 |
| kJ | — | — | 1 | 10 | 112 | 141 | 261 | — | — | 1 | — | — | — | 1 | 1 | 1 | 5 | 3 | 2 | 3 | 7 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 9 | 52 | 106 | 527 | 540 | 13 | 13 | 39 | 0 | 13 | 0 | 0 | 181 | 664 | 580 | 746 | 953 | 896 | 104 | 102 | 987 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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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 Winthrop Jetty 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 Winthrop Jetty Surf forecast
The above surf forecast table for Winthrop Jetty provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Winthrop Jetty can be found by selecting the local surf guide option on the grey menu. Our Winthrop Jetty 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 (Winthrop Jetty) 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 Winthrop Jetty 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.
Winthrop Jetty is 4 km (2 miles) from Winthrop. If you plan a vacation in Massachusetts, look for hotels and other accommodation in Winthrop. Winthrop has rooms for a wide range of budgets as well as car hire and transport links.
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