Surf Forecasts:
Nantasket Beach surf forecast from 19 Jul 2026:
- Best quality surf: Wednesday 22 Jul, 8AM (local time) - 3.5ft (1.1m), 6s period, SE swell with cross-offshore winds.
- Most powerful swell: Thursday 23 Jul, 2AM (local time) - 2.5ft (0.8m), 11s period, ESE swell with 140 kJ wave energy.
- Next surfable swell (1★+): Wednesday 22 Jul, 8AM (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 8AM. The primary swell is predicted to be 1.1m and 6s period with a secondary swell of 0.7m and 6s. Another secondary swell of 0.2m and 8s 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 0.8m 11s and forecast to arrive on Thursday (Jul 23) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 8s period and expected on Wednesday (Jul 22) at 11AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Wed 22nd Jul) | 3.5ft (1.1m) 6s |
| Best Surf | 8AM (Wed 22nd Jul) | 3.5ft (1.1m) 6s |
| Most Powerful | 2AM (Thu 23rd Jul) | 2.5ft (0.8m) 11s |
Table - best surf conditions forecast for Nantasket Beach over the next 16 days.
The Lowdown
Alright, Rusty here. Let's talk about the stretch ahead for Nantasket Beach.
Honestly, I'm looking at a pretty flat spell. The next week and a half are going to be a real struggle to find anything worth paddling out for. The swell is tiny, barely a ripple, and we're looking at a long stretch of "poor surf conditions" with a combined wave energy that's mostly in the single digits or low teens. It's going to be a quiet period on the beach. There's a brief flicker of life on the morning of Thursday, July 23rd, but it's hardly a standout.
The best – and really the only semi-decent – window is the morning of Thursday, July 23rd. We get a bit of a pulse from the ESE with a swell height of 2.3ft and a period of 11 seconds. The combined energy creeps up to 103 (moderate), which is at least something. The wind is offshore from the WNW at 12 mph, so it'll be clean. Still, this is very small, weak surf. It's surfable, but "very ordinary" is the call. For a more experienced surfer, it might be a junky little session, but beginners won't find much. The water temp is a bit colder than normal for this time of year, sitting around 65.5°.
After that, it's back to the doldrums. The rest of the forecast has us looking at tiny, weak swell with poor conditions. The wind is all over the place, but the energy just isn't there. There's a very long gap of no real surf after that Thursday peak. Honestly, a spot like Nantasket tends not to stay this poor for the entire two weeks, so forecasts can change, but right now, this is a tough run.
Stay tuned, but don't hold your breath.
Short Range ForecastModerate rain (total 14mm), heaviest on Tue night. Warm (max 27°C on Sun afternoon, min 18°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Wed morning. Warm (max 29°C on Wed afternoon, min 16°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | |||||||||||||||
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 13 | E 12 | N 4 | E 12 | E 12 | E 12 | E 12 | SE 4 | SE 6 | SE 9 | SE 5 | ESE 11 | ESE 11 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 3 | 3 | 6 | 3 | 3 | 3 | 3 | 12 | 80 | 79 | 23 | 140 | 103 | 24 | 24 | 23 | 25 | 23 | 11 | 11 | 11 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | glassy | cross-on | cross-off | cross | cross-on | cross-off | cross-off | cross-off | off | off | cross-off | off | glassy | on | cross-off | cross-on | cross-on | cross-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 | 9:47AM-0.05m | 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 | |||||||
 | |  | | | |  | |  |  | | | |  | | | | | | | | |
 | 5:22 | — | — | 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 | — | — | — | — | — | — | — | — | 14 | 2 | 2 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 27 | 25 | 24 | 26 | 23 | 24 | 26 | 22 | 27 | 29 | 23 | 20 | 23 | 22 | 23 | 24 | 23 | 22 | 23 | 20 |
Feels °C | 17 | 23 | 22 | 22 | 23 | 18 | 21 | 22 | 24 | 27 | 29 | 24 | 17 | 20 | 21 | 22 | 21 | 20 | 20 | 21 | 19 |
Swell 1 Height (m) Direction Period (s) | SE 6 | SE 6 | N 4 | — | E 9 | E 8 | E 8 | E 11 | ESE 6 | SE 9 | SE 5 | ESE 11 | ESE 11 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 |
| kJ | 2 | 2 | 2 | — | 2 | 1 | 1 | 2 | 45 | 79 | 23 | 140 | 103 | 24 | 24 | 23 | 25 | 23 | 11 | 11 | 11 |
Swell 2 Height (m) Direction Period (s) | E 13 | E 12 | SE 6 | SE 6 | E 12 | E 12 | E 12 | E 8 | E 11 | E 7 | ESE 10 | — | — | ESE 10 | E 12 | — | — | — | — | — | — |
| kJ | 3 | 3 | 1 | 1 | 3 | 3 | 3 | 1 | 2 | 1 | 9 | — | — | 20 | 3 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | E 8 | E 12 | E 12 | E 12 | — | — | — | — | — | E 7 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 1 | 3 | 3 | 3 | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 3 | N 4 | N 4 | — | SE 2 | SSE 4 | — | SE 4 | SE 6 | SE 8 | SW 3 | — | — | — | — | — | — | SW 2 | — | — | — |
| kJ | 4 | 2 | 6 | — | 1 | 1 | — | 12 | 80 | 162 | 1 | — | — | — | — | — | — | 1 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 108 | 113 | 98 | 113 | 844 | 108 | 1230 | 587 | 7 | 55 | 55 | 0 | 0 | 42 | 12 | 55 | 131 | 42 | 67 | 160 | 67 |
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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