Surf Forecasts:
Nantasket Beach surf forecast from 20 Jul 2026:
- Best quality surf: Wednesday 22 Jul, 2AM (local time) - 3.5ft (1.1m), 6s period, SE swell with cross-offshore winds.
- Most powerful swell: Wednesday 22 Jul, 2AM (local time) - 3.5ft (1.1m), 6s period, SE swell with 69 kJ wave energy.
- Next surfable swell (1★+): Wednesday 22 Jul, 2AM (local time) - 3.5ft (1.1m), 6s period with SE swell.
Best Forecast Surf Conditions for Nantasket Beach this week:
The surf forecast for Nantasket Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 22) at 2AM. The primary swell is predicted to be 1.1m and 6s period with a secondary swell of 0.8m and 6s. Another secondary swell of 0.1m and 11s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Nantasket Beach in the next 16 days are 1.1m 6s and forecast to arrive on Wednesday (Jul 22) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 4s period and expected on Monday (Jul 20) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 22nd Jul) | 3.5ft (1.1m) 6s |
| Best Surf | 2AM (Wed 22nd Jul) | 3.5ft (1.1m) 6s |
| Most Powerful | 2AM (Wed 22nd Jul) | 3.5ft (1.1m) 6s |
Table - best surf conditions forecast for Nantasket Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's take a look at what's cookin' for Nantasket Beach.
Honestly, it's a pretty quiet stretch ahead. The whole 16-day window is looking like a flat spell with only tiny, weak pulses. There's no standout day, no real swell to get excited about. The water's a bit cooler than usual for this time of year, sitting at 66°F, which is a touch chilly for July.
The first few days, starting Sunday the 19th, are a complete write-off with barely a ripple. We're talking ankle-snappers at 0.3 ft from the east with a long 12-second period, but with a northwesterly cross-off breeze, it at least looks clean. The energy is almost nothing.
Moving into the middle of the week, the 22nd and 23rd, we get a tiny bump, but still nothing to paddle for. The energy is still weak. Winds shift around, but the swell stays tiny. Honestly, it's a full-on lull.
The only time the ocean even takes a breath is right at the end of the month. On the 30th of July, a stronger pulse tries to push through, with a 4 ft swell from the NE and energy jumping up. That's the biggest we'll see, but it's still poor surf with a light onshore breeze. The 31st of July and into the first week of August, it all fades back to nothing. A glassy morning on the 2nd of August with 0.7 ft from the east will be pretty as a pond, but not for surfing.
Bottom line: Nantasket is flat. There's nothing to recommend. The setup is so weak and blown out at times, this stretch might be more interesting for a kite surfer than a paddle surfer. It's a blank run, but for this area in the summer, that's not unusual. Forecasts can change, but for now, I'd hang up the wetsuit for a while.
- Rusty
Short Range ForecastLight rain (total 7mm), mostly falling on Tue night. Warm (max 27°C on Sun afternoon, min 18°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Wed afternoon. Warm (max 26°C on Wed afternoon, min 15°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sun 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | ||||||||||||||
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 12 | E 12 | E 12 | E 12 | E 12 | E 12 | SE 4 | SE 6 | SE 9 | ESE 6 | ESE 11 | ESE 10 | ESE 8 | ESE 7 | ESE 7 | E 4 | ESE 8 | E 8 | ESE 8 | ESE 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 3 | 3 | 3 | 3 | 4 | 3 | 13 | 69 | 21 | 15 | 44 | 38 | 27 | 18 | 10 | 9 | 11 | 29 | 19 | 21 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-on | cross-off | cross | cross-on | cross-off | cross-off | off | cross-off | on | cross-on | cross-off | cross-on | on | cross-off | cross-on | cross-on | off |
High Tide | 4:05PM2.96m | 4:26AM2.83m | 4:57PM2.90m | 5:24AM2.64m | 5:49PM2.83m | 6:22AM2.49m | 6:41PM2.78m | 7:20AM2.38m | 7:33PM2.73m | 8:21AM2.33m | 8:28PM2.72m | 9:18AM2.32m | 9:21PM2.74m | |||||||
Low Tide | 10:14PM0.15m | 10:38AM0.12m | 11:13PM0.23m | 11:30AM0.29m | 00:11AM0.30m | 12:22PM0.44m | 1:09AM0.34m | 1:15PM0.55m | 2:08AM0.36m | 2:09PM0.62m | 3:06AM0.35m | 3:03PM0.63m | 3:57AM0.30m | |||||||
 |  | | | |  | |  |  |  | | | | | | | | | |  | |
 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | 5:26 | — | — | 5:26 | — | — | 5:28 | — | — |
 | 8:15 | — | — | 8:15 | — | — | 8:14 | — | — | 8:13 | — | — | 8:12 | — | — | 8:10 | — | — | 8:09 | — |
mm | — | — | — | — | — | — | — | 7 | — | 2 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 25 | 24 | 26 | 23 | 25 | 26 | 23 | 27 | 26 | 22 | 20 | 21 | 18 | 20 | 22 | 20 | 23 | 25 | 23 |
Feels °C | 23 | 22 | 22 | 23 | 19 | 22 | 22 | 24 | 27 | 24 | 18 | 17 | 17 | 15 | 18 | 18 | 18 | 21 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | N 4 | N 4 | N 4 | E 12 | SSE 4 | E 12 | E 11 | ESE 6 | ESE 5 | ESE 6 | ESE 11 | ESE 10 | ESE 8 | ESE 7 | ESE 7 | E 4 | ENE 4 | E 8 | ESE 8 | ESE 7 |
| kJ | 2 | 2 | 1 | 3 | 1 | 3 | 2 | 36 | 11 | 15 | 44 | 38 | 27 | 18 | 10 | 9 | 6 | 29 | 19 | 21 |
Swell 2 Height (m) Direction Period (s) | SE 6 | SE 6 | SE 6 | E 9 | E 8 | — | E 8 | E 11 | SE 9 | ESE 10 | — | — | NNE 3 | — | — | ESE 8 | ESE 8 | NNE 3 | — | SSE 3 |
| kJ | 1 | 2 | 1 | 1 | 1 | — | 1 | 2 | 21 | 10 | — | — | 1 | — | — | 6 | 11 | 1 | — | 1 |
Swell 3 Height (m) Direction Period (s) | E 12 | E 12 | E 12 | — | E 12 | — | — | — | — | E 7 | — | — | — | — | — | — | — | — | — | — |
| kJ | 3 | 3 | 3 | — | 3 | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | NNW 3 | SE 2 | SSE 3 | SE 3 | SE 4 | SE 6 | — | SSW 2 | WNW 2 | NNE 3 | — | — | ENE 3 | NNE 3 | NE 4 | — | — | — |
| kJ | — | — | 1 | 1 | 4 | 2 | 13 | 69 | — | 1 | 1 | 1 | — | — | 3 | 1 | 7 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 113 | 117 | 113 | 1949 | 64 | 1230 | 1230 | 0 | 26 | 91 | 12 | 90 | 961 | 58 | 108 | 131 | 12 | 118 | 743 | 55 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the Nantasket Beach Surf forecast
The above surf forecast table for Nantasket Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Nantasket Beach can be found by selecting the local surf guide option on the grey menu. Our Nantasket Beach 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 (Nantasket Beach) 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 Nantasket Beach 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.
Nantasket Beach is 8 km (5 miles) from the city of Hingham. If you plan a vacation in Massachusetts, look for hotels and other accommodation in Hingham. Hingham has rooms for a wide range of budgets as well as car hire and transport links.
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