Surf Forecasts:
Nantasket Beach surf forecast from 21 Jul 2026:
- Most powerful swell: Wednesday 22 Jul, 2AM (local time) - 3.5ft (1.1m), 5s period, SSE swell with 66 kJ wave energy.
Best Forecast Surf Conditions for Nantasket Beach this week:
The most powerful waves expected at Nantasket Beach in the next 16 days are 1.1m 5s 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 0.4m 3s period and expected on Wednesday (Jul 22) at 5PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Wed 22nd Jul) | 3.5ft (1.1m) 5s |
Table - best surf conditions forecast for Nantasket Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a hard look at the stretch ahead for Nantasket Beach. I’ve got to be straight with you – this is a tough one.
To be honest, the next sixteen days are a real bummer for surfers. The wave energy is flat, the swell is tiny, and the conditions are just not cooperating. We’re looking at a long dry spell where the surf is basically non-existent. Don’t get your hopes up; it’s a blank run, and for this area, that’s not totally unusual. Forecasts can change, but right now, there’s nothing to get excited about.
The first real chance of anything rideable might be on the 25th of July, a Saturday afternoon, when we see a tiny bump of 3 ft from the east with a short period of 5 seconds. The combined energy is a weak 62 (moderate wave energy), and with a cross-onshore breeze, it’ll be a choppy, messy mess. Not worth a paddle.
Then on the 26th, Sunday morning, we get a glassy moment – the wind is dead calm, which is a beautiful thing – but the swell is only 2 ft from the east with a period of 7 seconds. The energy is just 37 (weak wave energy). It’s clean, but there’s simply no power to push you. It’ll look like a lake.
The rest of the period is a string of tiny, weak waves, with heights mainly hanging around 1.0 ft to 1 ft. The wind mixes up between onshore, cross, and occasionally a clean offshore breeze, but the swell is just too small to do anything with. The water temperature is sitting at 63°F, which is a full 5°F colder than normal for this time of year. That’s a notable chill, so if you’re stubborn enough to go in, a thick wetsuit is a must.
There’s nothing here that’s a standout. The best of a bad bunch is possibly the morning of the 26th when it’s glassy, but you’ll be floating more than surfing. For the rest of the time, with such small, weak swell and poor surf quality, this setup honestly looks more interesting for kite surfing than paddle surfing on a few of the breezier afternoons, if that’s your thing.
Hang in there. We’ll get some swell eventually.
Rusty.
Short Range ForecastModerate rain (total 12mm), heaviest on Tue night. Warm (max 28°C on Wed afternoon, min 17°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Mon morning, min 14°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Tue 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | ||||||||||||||
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) | SE 4 | SSE 5 | SE 5 | SE 5 | ESE 10 | ESE 10 | SE 8 | SE 7 | ESE 7 | ESE 8 | ESE 7 | SE 7 | E 5 | E 6 | E 7 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 16 | 66 | 7 | 12 | 41 | 40 | 17 | 13 | 10 | 11 | 5 | 13 | 33 | 24 | 26 | 19 | 19 | 22 | 35 | 24 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | off | off | cross-off | on | cross-off | on | cross-on | glassy | on | cross-on | cross | glassy | cross-on | cross-off | cross | cross-off | cross-off |
High Tide | 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 | 10:52AM2.41m | 10:52PM2.85m | |||||||
Low Tide | 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 | 4:37PM0.53m | ||||||||
 |  |  | |  |  | |  | | | | | | | | | | | |  | |
 | — | — | 5:24 | — | — | 5:26 | — | — | 5:26 | — | — | 5:28 | — | — | 5:28 | — | — | 5:30 | — | — |
 | 8:14 | — | — | 8:13 | — | — | 8:12 | — | — | 8:10 | — | — | 8:09 | — | — | 8:08 | — | — | 8:07 | — |
mm | 1 | 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 22 | 25 | 28 | 25 | 21 | 23 | 20 | 22 | 23 | 20 | 20 | 20 | 18 | 20 | 23 | 21 | 28 | 30 | 23 |
Feels °C | 23 | 21 | 24 | 27 | 24 | 18 | 20 | 18 | 20 | 19 | 18 | 17 | 17 | 16 | 19 | 20 | 19 | 26 | 27 | 21 |
Swell 1 Height (m) Direction Period (s) | E 11 | SE 5 | SE 5 | SE 5 | ESE 10 | ESE 10 | SE 8 | SE 7 | ESE 7 | ESE 8 | ESE 4 | ESE 7 | E 5 | E 6 | E 7 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 |
| kJ | 2 | 25 | 7 | 12 | 41 | 40 | 17 | 13 | 10 | 11 | 3 | 5 | 29 | 24 | 26 | 19 | 19 | 22 | 35 | 24 |
Swell 2 Height (m) Direction Period (s) | — | E 11 | ESE 8 | ESE 9 | — | — | N 3 | — | — | — | ESE 7 | SE 7 | — | ESE 8 | ESE 8 | — | — | — | ESE 8 | E 6 |
| kJ | — | 2 | 7 | 8 | — | — | 1 | — | — | — | 5 | 13 | — | 6 | 11 | — | — | — | 33 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SE 4 | SSE 5 | SSW 3 | SSW 3 | — | — | — | — | — | — | — | E 5 | E 5 | — | — | — | — | S 3 | S 3 | SW 2 |
| kJ | 16 | 66 | 1 | 3 | — | — | — | — | — | — | — | 7 | 33 | — | — | — | — | 2 | 2 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1230 | 549 | 333 | 12 | 12 | 55 | 131 | 58 | 117 | 844 | 55 | 117 | 117 | 64 | 58 | 1547 | 55 | 523 | 950 | 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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