Swell Intel

Nantasket Beach Surf Forecast, Massachusetts

Massachusetts

Right now
Poor
overall conditions
1ft
ankle to knee high
Offshore·W 8–19 mph
Swell0.5ft @ 5s E
TideHigh, rising · high 8:24 PM

Conditions stay similar this week — check the hourly forecast at Nantasket Beach for the cleanest windows.

Nantasket Beach 5-Day Forecast Summary

Here's how the next 5 days are shaping up at Nantasket Beach, Massachusetts. Each day is rated based on breaking wave height, swell period, and wind — updated hourly from the latest NOAA GFS run.

Wed, Jun 24: 01ft, 7s period, rated Very Poor. Pretty quiet out there — 0-1ft and mostly very poor with calm winds.

Thu, Jun 25: 12ft, 8s period, rated Poor. Slim pickings today — 1-2ft and poor with gentle WSW breeze. Expect the wind to bump up to around 9mph by PM.

Fri, Jun 26: 01ft, 7s period, rated Very Poor. Not the most exciting day — 0-1ft and very poor conditions with light SSW winds.

Sat, Jun 27: 11ft, 11s period, rated Poor. A slow one — 1ft waves and very poor conditions with 9mph NNE winds.

Sun, Jun 28: 12ft, 11s period, rated Poor. Not the most exciting day — 1ft and poor conditions with light NNE winds.

Daily Forecast

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Nantasket Beach Surf Spot Guide

Break
Beach
Bottom
Sand
Level
Beginner
Crowd
Moderate
Best Swell
NE
Best Wind
SW
Season
Fall

Nantasket Beach is a sandy beach break located south of Boston that picks up consistent Atlantic swells, particularly during autumn and winter months. The sandy bottom provides a forgiving learning environment with generally mellow, rolling waves suitable for beginners and intermediate surfers. This accessible Massachusetts break offers a classic New England beach experience with decent swell direction alignment and relatively manageable conditions compared to more exposed coastal breaks.

Cold water temperaturesSwimmers and beach crowds

Wave heights shown are breaking wave heights — the actual rideable wave size at this spot.

Nantasket Beach Surf Forecast FAQ

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What is the current surf forecast for Nantasket Beach?

The current wave height at Nantasket Beach is 1ft with a 2.5s swell period. Wind is W at 8mph and conditions are rated Poor. The forecast updates hourly so you can plan your session around the cleanest windows.

What is the breaking wave height at Nantasket Beach?

The current breaking wave height at Nantasket Beach is 1ft, produced by a 0.5ft E primary swell at 5s, a 0.4ft ESE secondary swell at 8s, a 0.4ft ESE tertiary swell at 6s, a 0.9ft NW wind swell swell at 2s. Breaking wave height is the actual rideable wave size at the shore — calculated from offshore swell data using this spot's coastal bathymetry — not the raw buoy reading.

When is the best time to surf Nantasket Beach?

Based on the current 5-day forecast, the best window to surf Nantasket Beach is Thursday from 6 AM to 9 AM with 1ft waves, a 7.5s swell period, and conditions rated Poor. Check the hourly forecast for updates as conditions can shift.

What swell and wind direction work best at Nantasket Beach?

Nantasket Beach works best with a NE swell and SW winds. Offshore winds groom the face of the wave, while onshore winds turn it sloppy. Cross-offshore conditions usually produce the cleanest shape.

What tide is best at Nantasket Beach?

Tide plays a big role at Nantasket Beach. Mid tide works for most beach breaks, while reef and point breaks often prefer higher or lower stages. Use the tide chart above to line up your session with the swell peak.

What kind of wave is Nantasket Beach and who is it for?

Nantasket Beach is a beach with a sand bottom, suited to beginner surfers. Nantasket Beach is a sandy beach break located south of Boston that picks up consistent Atlantic swells, particularly during autumn and winter months. The sandy bottom provides a forgiving learning environment with generally mellow, rolling waves suitable for beginners and intermediate surfers. This accessible Massachusetts break offers a classic New England beach experience with decent swell direction alignment and relatively manageable conditions compared to more exposed coastal breaks.

When is the best season to surf Nantasket Beach?

The prime season at Nantasket Beach is fall, when swell direction, wind patterns, and water temps line up most consistently. Outside the peak season you can still score, but you'll need to watch the forecast closely for the right windows.

Are there any hazards to know about at Nantasket Beach?

Common hazards at Nantasket Beach include cold water temperatures, swimmers and beach crowds. Always check conditions before paddling out, respect local etiquette, and never surf alone if you're unfamiliar with the break.

How accurate is the Nantasket Beach surf forecast?

Our Nantasket Beach forecast uses NOAA GFS and other weather models combined with spot-specific bathymetry to calculate breaking wave heights. Short-range (1-3 day) forecasts are most reliable. Extended forecasts show general trends. Visit /public/accuracy for per-spot and regional performance metrics.