Nantasket Beach surf break

Nantasket Beach surfForecast / Massachusetts / USA

information circle48hr Weather and Surf, issued 6 am Thursday 22 Jan 2026 EST
Forecast update in hr  min  s Forecast update imminent
Nantasket Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Nantasket Beach sea temperature is
4.2° C
(Which is normal for this time of year)


How big are the waves at Nantasket Beach today?

The current surf forecast for Nantasket Beach at 10AM is: 0.3m 10s primary swell from a East-southeast direction (forecast issued at 06:00am January 22). An open ocean swell of 0.2m 3s is not directed at the surf break, a second open ocean swell of 0.5m 3s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (EST) & DateWave HeightWave Period
Morning (22 Jan)1ft (0.3m)10s
Afternoon (22 Jan)1ft (0.3m)10s
Evening (22 Jan)1ft (0.3m)10s

Table - waves today at Nantasket Beach. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent
Thursday
22
Friday
23
Saturday
24
Sun
25
4AM7AM10AM1PM4PM7PM10PM1AM4AM7AM10AM1PM4PM7PM10PM1AM4AM7AM10AM1PM4PM7PM10PM1AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.2
E
0.3
ESE
0.3
ESE
0.3
ESE
0.3
ESE
0.2
E
0.3
ESE
0.3
ESE
0.3
ESE
0.3
ESE
0.2
E
0.2
E
0.2
E
0.2
E
0.2
E
0.2
E
0.2
E
0.2
E
0.2
E
0.2
E
0.2
E
0.2
E
0.2
E
0.2
E
Period(s) (?)10101010911101010111111111010111111111111111111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)719191817102020212299999999101010999
Wind
(km/h)
30
SW
25
SW
25
WSW
20
WSW
20
WSW
25
WNW
15
W
15
W
20
W
20
W
25
SW
25
WSW
30
WNW
30
WNW
30
WNW
30
WNW
30
WNW
25
WNW
25
NW
25
NW
25
NW
25
NW
20
NW
20
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
offoffcross-
off
cross-
off
offoffoffoffcross-
off
cross-
off
cross-
off
offoffcross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
1:14AM
2.73
1:24PM
2.97
1:53AM
2.80
2:07PM
2.90
2:36AM
2.87
2:55PM
2.79
Low Tide
/ height (m)
7:13AM
0.11
7:39PM
-0.10
7:57AM
0.08
8:21PM
-0.06
8:46AM
0.07
9:06PM
0.01
Thursday
22
Friday
23
Saturday
24
Sun
25
Sunrise--7:05-------7:05-------7:03-----
Sunset----4:44-------4:45-------4:45---
cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
cloud
part cloud
clear
part cloud
cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
cloud
cloud
part cloud
Rain (mm)
------------------------
Temp. °C344551-2-3-4-4-3-1-4-7-9-11-14-16-15-11-10-12-13-14
Feels °C (?)-5-3-3-1-1-6-8-9-11-11-11-10-13-17-18-20-23-25-24-20-18-20-21-22
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Latest Updates

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