Surf Forecasts:
Nantasket Beach surf forecast from 17 Jul 2026:
- Best quality surf: Wednesday 22 Jul, 11PM (local time) - 1.5ft (0.5m), 11s period, ESE swell with cross-offshore winds.
- Most powerful swell: Wednesday 22 Jul, 8PM (local time) - 1.5ft (0.5m), 11s period, ESE swell with 64 kJ wave energy.
- Next surfable swell (1★+): Wednesday 22 Jul, 11PM (local time) - 1.5ft (0.5m), 11s period with ESE 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 11PM. The primary swell is predicted to be 0.5m and 11s period with a secondary swell of 0.3m and 5s. 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 0.5m 11s and forecast to arrive on Wednesday (Jul 22) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Sunday (Jul 19) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Wed 22nd Jul) | 1.5ft (0.5m) 11s |
| Best Surf | 11PM (Wed 22nd Jul) | 1.5ft (0.5m) 11s |
| Most Powerful | 8PM (Wed 22nd Jul) | 1.5ft (0.5m) 11s |
Table - best surf conditions forecast for Nantasket Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get straight into it.
First up, I’ve gotta be honest with you – the next couple of weeks are looking pretty grim for a proper paddle. We’re staring down a long, quiet stretch. The only real glimmer of something rideable doesn’t show up until the very end of the month, so we’ve got a solid ten-day gap with nothing worth getting wet for. From the 17th all the way through the 30th of July, it’s flat to tiny, with mostly poor surf conditions. The swell energy is just a whisper, barely hitting double digits most days, and the wind is all over the place. A few mornings might look clean, but with swell heights barely scraping 2 ft and periods all over the shop, it’s a no-go.
Now, if you’re the patient type, the 31st of July is where it finally gets interesting. For the Friday morning, Nantasket Beach is showing a little pulse. We’re looking at a 3 ft swell coming out of the north-northeast, which is a bit of a weird angle for this spot, but it’s got light offshore winds from the west, making for clean conditions. The combined energy picks up to 80 (moderate), which is the most we’ve seen in this whole run. The period is short, around 5 seconds, so it’s windswell, not a groundswell – it’ll be a bit mushy and bumpy, but it’s surfable. The afternoon holds up too, with a 3 ft NNE swell and a gentle offshore breeze from the west-southwest, keeping things clean. This is the one standout. It’s not epic, but it’s something to scratch the itch. The water temperature is a touch warmer than normal at 69°F, which is a nice bonus.
Looking ahead to the 1st of August, we get a Saturday morning with glassy conditions and a 2 ft easterly swell, but the energy drops right back down to 37 (weak), so it’s back to the small stuff.
Honestly, this is a tough stretch for Nantasket. The consistent breaks are usually optimistic, but when the forecast is this blank for this long, it’s just the way it goes here sometimes. Don’t hang up your boardshorts yet – a few days of offshore wind in late July can change everything. Keep an eye on the sky.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Sat night. Warm (max 30°C on Sat afternoon, min 18°C on Sun night). Winds increasing (calm on Fri night, fresh winds from the SSW by Sat afternoon). | Days 4-6 Weather SummaryHeavy rain (total 41mm), heaviest during Tue night. Warm (max 29°C on Wed afternoon, min 18°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||
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 15 | E 14 | E 14 | E 14 | S 4 | SE 6 | E 13 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | ESE 3 | ESE 4 | ESE 5 | ESE 10 | ESE 10 | ESE 9 | ESE 8 | ESE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 4 | 4 | 4 | 4 | 19 | 19 | 4 | 3 | 4 | 3 | 3 | 3 | 3 | 5 | 6 | 16 | 19 | 59 | 32 | 25 | 21 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | off | on | cross-on | cross | cross | cross | cross | cross-off | cross-off | off | cross-off | cross-off | cross-off |
High Tide | 2:24PM3.02m | 2:38AM3.20m | 3:14PM3.01m | 3:31AM3.02m | 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 | ||||||||
Low Tide | 8:08AM-0.31m | 8:24PM-0.01m | 8:57AM-0.20m | 9:18PM0.06m | 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 | |||||||
 | |  | |  |  | | | | | |  |  | |  |  |  | | | | | |
 | 5:20 | — | — | 5:22 | — | — | 5:22 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | 5:26 | — | — |
 | — | 8:16 | — | — | 8:15 | — | — | 8:15 | — | — | 8:15 | — | — | 8:14 | — | — | 8:13 | — | — | 8:12 | — |
mm | — | — | — | — | — | 5 | — | — | — | — | — | — | — | — | 39 | 1 | 1 | — | — | — | — |
Temp °C | 24 | 26 | 24 | 28 | 30 | 22 | 24 | 26 | 24 | 21 | 22 | 22 | 25 | 27 | 23 | 23 | 29 | 25 | 24 | 26 | 22 |
Feels °C | 20 | 23 | 22 | 26 | 25 | 22 | 19 | 22 | 20 | 18 | 18 | 19 | 23 | 23 | 23 | 23 | 27 | 24 | 24 | 26 | 21 |
Swell 1 Height (m) Direction Period (s) | E 9 | — | — | E 14 | E 13 | SE 6 | ESE 6 | SE 6 | N 3 | NNE 4 | — | ESE 4 | E 12 | E 11 | ESE 4 | ESE 5 | ESE 6 | ESE 10 | ESE 9 | ESE 8 | ESE 7 |
| kJ | 1 | — | — | 4 | 3 | 19 | 4 | 2 | 1 | 1 | — | 2 | 3 | 2 | 6 | 16 | 10 | 59 | 32 | 25 | 21 |
Swell 2 Height (m) Direction Period (s) | E 15 | E 14 | E 14 | E 8 | E 8 | E 13 | E 13 | E 12 | SE 6 | E 12 | E 9 | E 8 | E 8 | E 7 | SE 6 | E 10 | ESE 10 | — | — | — | E 9 |
| kJ | 4 | 4 | 4 | 1 | 1 | 3 | 3 | 3 | 1 | 3 | 2 | 1 | 1 | 1 | 1 | 2 | 19 | — | — | — | 2 |
Swell 3 Height (m) Direction Period (s) | — | E 8 | E 8 | E 8 | E 8 | — | — | E 8 | E 12 | SE 6 | E 12 | E 12 | E 8 | E 10 | E 11 | — | S 8 | — | — | — | — |
| kJ | — | 1 | 1 | 1 | 1 | — | — | 1 | 3 | 1 | 3 | 3 | 1 | 2 | 2 | — | 1 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 3 | — | — | — | S 4 | SW 3 | NW 2 | NNW 3 | N 3 | — | ESE 2 | — | ESE 4 | ESE 3 | — | — | — | WNW 3 | — | SE 2 | SW 3 |
| kJ | 1 | — | — | — | 19 | 2 | 1 | 2 | 4 | — | 1 | — | 1 | 5 | — | — | — | 1 | — | 1 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 950 | 523 | 531 | 531 | 403 | 26 | 108 | 91 | 91 | 117 | 131 | 160 | 2521 | 1230 | 368 | 349 | 55 | 7 | 26 | 131 | 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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