Surf Forecasts:
Nahant Beach surf forecast from 14 Aug 2026:
- Most powerful swell: Friday 21 Aug, 11AM (local time) - 3.5ft (1.1m), 6s period, NE swell with 77 kJ wave energy.
Best Forecast Surf Conditions for Nahant Beach this week:
The most powerful waves expected at Nahant Beach in the next 16 days are 1.1m 6s and forecast to arrive on Friday (Aug 21) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Thursday (Aug 20) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Fri 21st Aug) | 3.5ft (1.1m) 6s |
Table - best surf conditions forecast for Nahant Beach over the next 16 days.
The Lowdown
G’day, Rusty here. Look, I’ve gotta be straight with you – the next couple of weeks around Nahant Beach are looking flat as a pancake. We’ve got a 16-day window, but the first real sign of life doesn’t show up until Sunday the 23rd of August, and even then it’s nothing to write home about. There’s a big gap of nothing before that.
Alright, let’s run through it. The whole period is dominated by tiny, weak swell. Most days you’re looking at waves around 0.3 to 2 feet, with periods mostly under 10 seconds – that’s just windswell, not real groundswell. The combined energy is pathetic, mostly single-digit or low double-digit values (like 7, 12, 15, 36), way below 100. It’s the kind of energy that barely moves the water.
Now, the only time it gets even slightly interesting is around Sunday the 23rd. On the morning of the 23rd, we get a bump of swell from the ENE at 4 feet, with a period of 7 seconds, and combined energy hits 136 (moderate). The wind is a light cross-offshore from the SSW at just 3 mph, which is glassy. Water temp is about 69°F, which is pretty normal for this time of year. It’s rideable, but it’s messy – the wave comment calls it “surfable waves but very ordinary conditions.” It’s a 1 out of 10, so don’t drop your plans for it. This is a beginner-friendly break and that swell is under 5 feet, so it’s fine for learners, but it’s not a standout.
The afternoon of the 23rd? Rain showers and a shift to cross-on wind, so it’s a write-off. The rest of the week after that is back to tiny, weak surf with poor conditions. There’s a brief moment on the morning of Tuesday the 25th with a clean offshore breeze from the WSW at 9 mph, but the swell is only 2 feet – not enough to get excited about.
The only other flicker is on Saturday the 29th of August, with a clean offshore wind from the WNW at 6 mph and surfable waves at 2 feet, but again, it’s just ordinary.
So, in short: if you’re desperate for a paddle on the 23rd morning, you might get a few knee-high lumps, but honestly, this is a stretch of flatness. The break is consistent, but the swell just isn’t delivering. For kite surfers, the bigger, choppier days – like the afternoon of the 22nd with 5 feet from the NE and 127 combined energy – might be more interesting than a paddle board.
Stay patient, mate. It’ll turn around.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Sun night. Warm (max 27°C on Fri afternoon, min 18°C on Sat morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Mon morning. Warm (max 29°C on Wed afternoon, min 18°C on Mon night). Winds increasing (light winds from the ENE on Mon night, fresh winds from the SSW by Wed afternoon). | ||||||||||||||||||||
Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | |||||||||||||||
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) | ESE 10 | ESE 10 | NNE 4 | E 12 | E 12 | E 12 | SE 9 | SSE 3 | SSE 4 | SE 5 | SE 6 | ESE 5 | E 5 | SE 8 | SE 8 | ESE 8 | SE 4 | ESE 7 | SE 6 | SE 6 | ESE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 9 | 9 | 4 | 3 | 3 | 3 | 3 | 4 | 11 | 66 | 52 | 15 | 10 | 10 | 10 | 24 | 18 | 5 | 17 | 5 | 26 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-off | glassy | cross-on | cross-off | cross-on | cross | cross | cross-on | on | cross | cross-on | on | cross-off | cross | cross-off | cross-off | cross-off | cross-on | cross |
High Tide | 1:11PM3.03m | 1:28AM3.22m | 1:57PM3.05m | 2:17AM3.09m | 2:43PM3.02m | 3:05AM2.92m | 3:28PM2.95m | 3:55AM2.73m | 4:15PM2.86m | 4:46AM2.55m | 5:05PM2.75m | 5:41AM2.40m | 5:58PM2.66m | ||||||||
Low Tide | 7:12PM-0.13m | 7:41AM-0.23m | 8:02PM-0.10m | 8:26AM-0.11m | 8:51PM-0.03m | 9:11AM0.05m | 9:40PM0.09m | 9:57AM0.22m | 10:32PM0.21m | 10:45AM0.40m | 11:26PM0.34m | 11:37AM0.54m | 00:24AM0.43m | ||||||||
 |  |  | | | | |  |  |  | |  | | | | | |  |  | | | |
 | 5:48 | — | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — |
 | — | 7:45 | — | — | 7:45 | — | — | 7:44 | — | — | 7:42 | — | — | 7:40 | — | — | 7:38 | — | — | 7:37 | — |
mm | — | — | — | — | — | — | — | — | 2 | 2 | — | — | — | — | — | — | — | 3 | 1 | — | — |
Temp °C | 25 | 27 | 23 | 23 | 24 | 21 | 22 | 26 | 22 | 19 | 19 | 19 | 21 | 22 | 21 | 26 | 29 | 24 | 26 | 28 | 24 |
Feels °C | 22 | 26 | 22 | 22 | 22 | 19 | 21 | 24 | 19 | 17 | 18 | 20 | 20 | 21 | 22 | 26 | 28 | 21 | 25 | 26 | 23 |
Swell 1 Height (m) Direction Period (s) | ESE 10 | ESE 10 | SE 9 | NNE 4 | SE 9 | SSE 3 | SE 9 | SE 9 | SE 8 | SE 9 | SE 6 | ESE 5 | E 5 | SE 8 | ESE 5 | ESE 8 | SE 6 | ESE 7 | SE 6 | SE 6 | ESE 8 |
| kJ | 9 | 9 | 3 | 1 | 3 | 1 | 3 | 3 | 3 | 3 | 52 | 15 | 10 | 10 | 4 | 24 | 1 | 5 | 17 | 5 | 26 |
Swell 2 Height (m) Direction Period (s) | E 13 | — | — | SE 9 | — | SE 9 | SE 9 | — | — | — | — | SE 8 | ESE 8 | ESE 8 | SE 8 | E 4 | SE 7 | ESE 6 | SE 9 | ESE 7 | E 15 |
| kJ | 3 | — | — | 3 | — | 3 | 3 | — | — | — | — | 3 | 7 | 7 | 10 | 2 | 2 | 3 | 3 | 5 | 4 |
Swell 3 Height (m) Direction Period (s) | E 10 | E 13 | E 12 | E 12 | E 12 | E 12 | — | E 11 | — | — | — | — | SSE 5 | — | — | — | E 9 | — | ESE 9 | E 9 | — |
| kJ | 2 | 3 | 3 | 3 | 3 | 3 | — | 2 | — | — | — | — | 2 | — | — | — | 2 | — | 8 | 2 | — |
Wind waves Height (m) Direction Period (s) | N 3 | — | NNE 4 | — | SE 2 | — | NNE 3 | SSE 3 | SSE 4 | SE 5 | — | NNE 2 | N 3 | E 4 | — | — | SE 4 | S 4 | SW 3 | — | NE 4 |
| kJ | 1 | — | 4 | — | 1 | — | 1 | 4 | 11 | 66 | — | 1 | 1 | 10 | — | — | 18 | 13 | 1 | — | 15 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2696 | 946 | 652 | 993 | 3545 | 1177 | 1688 | 1248 | 58 | 283 | 43 | 97 | 127 | 169 | 47 | 520 | 657 | 520 | 56 | 127 | 520 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Nahant Beach Surf forecast
The above surf forecast table for Nahant Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Nahant Beach can be found by selecting the local surf guide option on the grey menu. Our Nahant 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 (Nahant 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 Nahant 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.
Nahant Beach is 7 km (4 miles) from Lynn. If you plan a vacation in Massachusetts, look for hotels and other accommodation in Lynn. Lynn has rooms for a wide range of budgets as well as car hire and transport links.
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