Surf Forecasts:
Nantasket Beach surf forecast from 20 Jul 2026:
- Best quality surf: Thursday 23 Jul, 11AM (local time) - 1.5ft (0.5m), 10s period, ESE swell with offshore winds.
- Most powerful swell: Thursday 23 Jul, 5PM (local time) - 2.5ft (0.8m), 10s period, SE swell with 110 kJ wave energy.
- Next surfable swell (1★+): Thursday 23 Jul, 11AM (local time) - 1.5ft (0.5m), 10s 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 Thursday (Jul 23) at 11AM. The primary swell is predicted to be 0.5m and 10s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Nantasket Beach in the next 16 days are 0.8m 10s and forecast to arrive on Thursday (Jul 23) 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 0.2m 2s period and expected on Wednesday (Jul 22) at 5PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Thu 23rd Jul) | 1.5ft (0.5m) 10s |
| Best Surf | 11AM (Thu 23rd Jul) | 1.5ft (0.5m) 10s |
| Most Powerful | 5PM (Thu 23rd Jul) | 2.5ft (0.8m) 10s |
Table - best surf conditions forecast for Nantasket Beach over the next 16 days.
The Lowdown
Alright, grab a coffee and listen up. It’s Rusty here, and I’ve got a pretty grim picture for this stretch of coast. The truth is, for the next couple of weeks, Nantasket Beach is going to be a tough place to be a surfer. We’re looking at a long, dry spell with hardly any swell to speak of.
Right now, and for the next several days, there’s just nothing happening. The water’s a touch on the warm side at 66°, which is about average for this time of year, but that’s the only good news. We’re looking at tiny, weak waves with energy readings barely registering (4). You’ll be sitting out there on a glassy Monday morning, but it’s flat. That pattern continues right through the week. Tuesday and Wednesday see a tiny bump of 2ft to 2ft, but the wind is all over the place, mostly cross or cross-onshore, and the period is so short (4-6 seconds) it’s just messy, choppy nonsense. The energy creeps up to a moderate 30 on Wednesday morning, but it’s still poor.
Thursday the 23rd is the only real glimmer of hope in this whole outlook. The morning brings a clean 2ft wave from the ESE with a 10-second period, and a solid offshore breeze from the WNW. The energy jumps to 60 (moderate), and it’ll be clean. It’s surfable, but it’s still pretty ordinary. If you’re desperate, that’s your window. The afternoon gets a bit more size (3ft) and energy (148), but it’s a cross-offshore wind, so it won’t be as clean.
After that, it’s back to the doldrums. From Friday the 24th all the way through to the start of August, the swell is tiny, the period is short, and the wind is mostly onshore or cross-onshore. There are a few mornings with glassy conditions, like the 25th, but the swell is only 1.0ft to 1ft with no energy. It’s just not worth paddling out for.
The tail end of the outlook, from the 1st of August onwards, is more of the same. Clean winds, but no swell. A tiny 2ft bump on the afternoon of the 2nd from the south, but with a 4-second period, it’s barely a ripple.
So, what’s the verdict? Honestly, there’s no standout session here. The best you can hope for is a few clean, small waves on Thursday morning, the 23rd, if you’re just looking to get wet. For the rest of it, you’re better off saving your energy. The forecast can change, but right now, this stretch is a flat spell.
Rusty.
Short Range ForecastHeavy rain (total 20mm), heaviest during Tue night. Warm (max 27°C on Wed afternoon, min 18°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Sat afternoon, min 17°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | |||||||||||||||
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 12 | E 12 | E 12 | E 12 | SE 4 | SE 6 | ESE 6 | SE 5 | ESE 7 | ESE 10 | SE 10 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 3 | 3 | 3 | 3 | 12 | 77 | 18 | 14 | 17 | 60 | 110 | 24 | 22 | 21 | 23 | 19 | 11 | 17 | 10 | 11 | 22 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross-off | cross | cross-on | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | glassy | cross-on | cross-off | glassy | cross-on | cross-off | cross-on | cross-on | cross-off |
High Tide | 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 | 10:09AM2.36m | 10:09PM2.79m | ||||||||
Low Tide | 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 | 3:53PM0.59m | 4:41AM0.26m | |||||||
 | |  |  |  |  | |  |  | | | | | |  | | | | | | | |
 | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | 5:26 | — | — | 5:26 | — | — | 5:28 | — | — | 5:28 | — | — |
 | — | 8:15 | — | — | 8:14 | — | — | 8:13 | — | — | 8:12 | — | — | 8:10 | — | — | 8:09 | — | — | 8:08 | — |
mm | — | — | — | — | — | 14 | — | 2 | 4 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 26 | 22 | 24 | 25 | 22 | 26 | 27 | 24 | 21 | 24 | 23 | 23 | 25 | 22 | 24 | 26 | 23 | 25 | 26 | 22 |
Feels °C | 22 | 23 | 18 | 22 | 22 | 23 | 26 | 27 | 25 | 17 | 20 | 21 | 21 | 22 | 19 | 24 | 24 | 21 | 24 | 22 | 19 |
Swell 1 Height (m) Direction Period (s) | — | E 12 | E 8 | E 8 | E 11 | ESE 6 | ESE 6 | SE 5 | ESE 7 | ESE 10 | ESE 10 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 8 |
| kJ | — | 3 | 1 | 1 | 2 | 48 | 18 | 14 | 17 | 60 | 38 | 24 | 22 | 21 | 23 | 19 | 11 | 17 | 10 | 11 | 22 |
Swell 2 Height (m) Direction Period (s) | E 6 | E 8 | E 12 | E 12 | — | E 11 | SE 8 | ESE 10 | ESE 10 | — | — | ESE 11 | — | — | — | — | — | — | — | — | — |
| kJ | 1 | 1 | 3 | 3 | — | 2 | 11 | 9 | 11 | — | — | 11 | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | E 12 | — | — | — | — | E 11 | E 7 | E 7 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 3 | — | — | — | — | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SE 2 | SSE 3 | SE 2 | SE 4 | SE 6 | — | SSW 2 | — | — | SE 10 | — | — | — | — | — | SE 3 | — | — | SE 2 | — |
| kJ | — | 1 | 1 | 1 | 12 | 77 | — | 1 | — | — | 110 | — | — | — | — | — | 2 | — | — | 2 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 113 | 844 | 108 | 1230 | 1230 | 64 | 69 | 64 | 12 | 0 | 17 | 12 | 79 | 131 | 55 | 81 | 984 | 58 | 79 | 1547 | 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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