Surf Forecasts:
Nahant Beach surf forecast from 18 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 2AM (local time) - 1.5ft (0.5m), 9s period, ESE swell with glassy winds.
- Most powerful swell: Wednesday 19 Aug, 2AM (local time) - 1.5ft (0.5m), 9s period, ESE swell with 44 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 2AM (local time) - 1.5ft (0.5m), 9s period with ESE swell.
Best Forecast Surf Conditions for Nahant Beach this week:
The surf forecast for Nahant Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 19) at 2AM. The primary swell is predicted to be 0.5m and 9s period with a secondary swell of 0.2m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Nahant Beach in the next 16 days are 0.5m 9s and forecast to arrive on Wednesday (Aug 19) at 2AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 3s period and expected on Tuesday (Aug 25) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 19th Aug) | 1.5ft (0.5m) 9s |
| Best Surf | 2AM (Wed 19th Aug) | 1.5ft (0.5m) 9s |
| Most Powerful | 2AM (Wed 19th Aug) | 1.5ft (0.5m) 9s |
Table - best surf conditions forecast for Nahant Beach over the next 16 days.
The Lowdown
G’day, it’s Rusty.
Honestly, the next couple of weeks are looking pretty flat and frustrating around here. We’ve got a long stretch of small, weak, and mostly messy surf, so you might be better off doing a few maintenance chores on your board or checking the tide charts for a future trip.
The first real highlight doesn’t even show up until Monday the 31st of August. Before that, from now through the 30th, it’s a desert. We’re talking days of ankle-biters, mostly under 2ft, with a lot of onshore and cross-onshore junk. The energy readings are pitiful – mostly in the teens, twenties, and thirties – like 16, 19, 21, and so on. There’s a brief moment on Wednesday the 19th with some clean, glassy conditions in the afternoon, but the swell is still a feeble 2ft from the ESE with a short 7-second period. It’s just not worth paddling out for. Nothing is breaking with any sort of push, and the beach setup just can't do anything with this lack of energy.
Around the 26th, we see a spike in period – hitting 15 seconds – but the swell height stays a pathetic 0.9ft. That’s all energy and no height; it’ll mean a lot of water moving around but nothing surfable. The wind is also up, so it’d look more interesting for kite surfing than paddle surfing.
Then, finally, on the morning of Monday the 31st of August, there’s a bit of a pulse. The swell jumps up to 5ft from the ENE, with a 6-second period. The energy reading jumps to 193, which is moderate, but that short period is going to make it walled-up and messy. The morning wind is light from the SSW, which is cross-offshore, so it might be clean early. It’s still not great, but it's the best we've seen. It gets a bit bigger in the afternoon to 6ft, but the wind swings onshore and it gets messy. Tuesday the 1st of September actually looks better, even if the swell drops. You get 4ft from the NE in the morning and light glassy SW winds – that combo could make Nahant Beach (Nahant) actually semi-fun. It’s still a short-period swell, but clean.
So, the standalone pick is the morning of Tuesday, September 1st. It won’t be epic, but with 4ft of NE swell and glassy conditions, it will be the most user-friendly and clean the surf will be all period. As for the water temp, it’s about average for this time of year, so a normal summer wetsuit should be fine.
The longer-range stuff for the second week is promising but less certain. The Monday the 31st pulse is a sign of life, but that short period is a major letdown.
Keep your expectations low and your eyes on the forecast for that first Tuesday of September.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Wed afternoon, min 20°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 55mm), heaviest during Sun morning. Warm (max 22°C on Fri afternoon, min 17°C on Sun afternoon). Wind will be generally light. | ||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||
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 | ESE 5 | SE 9 | ESE 9 | ESE 7 | ESE 7 | ESE 6 | ESE 8 | ESE 7 | SE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | E 5 | E 6 | ENE 6 | E 6 |
Wave Graph | |||||||||||||||||||
3 | 7 | 20 | 44 | 26 | 29 | 23 | 12 | 21 | 20 | 22 | 22 | 21 | 20 | 19 | 29 | 32 | 42 | 25 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | glassy | cross-off | glassy | glassy | cross-on | on | cross-off | cross-on | on | off | on | on | on | cross-on | cross | cross-off |
High Tide | 3:55AM2.73m | 4:15PM2.86m | 4:46AM2.55m | 5:05PM2.75m | 5:41AM2.40m | 5:58PM2.66m | 6:40AM2.29m | 6:54PM2.61m | 7:40AM2.24m | 7:52PM2.60m | 8:39AM2.26m | 8:48PM2.64m | |||||||
Low Tide | 9:40PM0.09m | 9:57AM0.22m | 10:32PM0.21m | 10:45AM0.40m | 11:26PM0.34m | 11:37AM0.54m | 00:24AM0.43m | 12:32PM0.64m | 1:24AM0.48m | 1:29PM0.68m | 2:24AM0.46m | 2:26PM0.66m | 3:18AM0.41m | ||||||
— | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | |
7:42 | — | 7:40 | — | — | 7:38 | — | — | 7:37 | — | — | 7:36 | — | — | 7:34 | — | — | 7:32 | — | |
mm | — | — | — | — | — | — | — | — | — | 5 | 1 | — | — | — | — | 2 | 42 | 5 | 1 |
Temp °C | 21 | 23 | 22 | 21 | 26 | 29 | 28 | 22 | 23 | 19 | 19 | 22 | 20 | 21 | 21 | 19 | 19 | 18 | 19 |
Feels °C | 22 | 24 | 22 | 22 | 27 | 29 | 28 | 22 | 22 | 20 | 20 | 23 | 21 | 21 | 20 | 20 | 19 | 18 | 20 |
Swell 1 Height (m) Direction Period (s) | SE 4 | ESE 5 | SE 9 | ESE 9 | ESE 7 | ESE 8 | ESE 6 | ESE 6 | ESE 7 | E 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | E 5 | E 6 | ESE 12 | E 6 |
2 | 7 | 20 | 44 | 26 | 7 | 23 | 7 | 21 | 18 | 22 | 22 | 21 | 20 | 19 | 29 | 32 | 14 | 25 | |
Swell 2 Height (m) Direction Period (s) | SE 9 | SE 8 | E 4 | ESE 7 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | — | SE 9 | E 15 | E 14 | ENE 4 | E 13 | E 13 | ESE 8 | ESE 12 | E 9 | ESE 12 |
3 | 3 | 9 | 4 | 15 | 7 | 8 | 12 | — | 20 | 4 | 4 | 3 | 14 | 13 | 11 | 15 | 1 | 14 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | ESE 9 | — | — | — | — | — | E 15 | — | E 14 | ESE 5 | — | — | E 13 | — | E 8 | SE 8 |
— | — | — | 8 | — | — | — | — | — | 4 | — | 4 | 2 | — | — | 13 | — | 1 | 3 | |
Wind waves Height (m) Direction Period (s) | — | E 4 | E 4 | — | — | ESE 7 | — | — | — | — | E 3 | E 4 | — | E 5 | E 5 | — | NE 3 | ENE 6 | — |
— | 6 | 6 | — | — | 29 | — | — | — | — | 6 | 9 | — | 7 | 15 | — | 3 | 42 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 127 | 108 | 123 | 0 | 47 | 43 | 47 | 174 | 2518 | 47 | 391 | 555 | 47 | 489 | 556 | 379 | 37 | 56 | 28 |
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.











