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coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1047 pm edt thu apr 23 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz230-241600-
boston harbor-
1047 pm edt thu apr 23 2026

.tonight...nw winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. waves around 2 ft this
evening, then 1 foot or less. 
.fri...n winds 5 to 10 kt, becoming e in the afternoon. waves
1 foot or less. 
.fri night...e winds 5 to 10 kt, becoming ne after midnight.
waves 1 foot or less. 
.sat...ne winds 5 to 10 kt, becoming e in the afternoon. waves
1 foot or less. 
.sat night...se winds 5 to 10 kt, becoming sw after midnight.
waves 1 foot or less. 
.sun and sun night...ne winds 5 to 10 kt. waves 1 foot or less. 
.mon through tue...ne winds 10 to 15 kt. waves around 2 ft. 
.tue night...e winds 10 to 15 kt. waves around 2 ft. a chance of
showers.  

seas are reported as significant wave height, which is the
average of the highest third of the waves. individual wave
heights may be more than twice the significant wave height.

$$

fzus51 kbox 240247
cwfbox
expires:202604241600;;885522

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1047 pm edt thu apr 23 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz250-241600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
1047 pm edt thu apr 23 2026

.tonight...n winds 5 to 10 kt. gusts up to 20 kt this evening.
seas 2 to 3 ft. wave detail: n 2 ft at 4 seconds and se 2 ft at
7 seconds. 
.fri...n winds around 10 kt, becoming e in the afternoon. seas
2 to 3 ft. wave detail: n 2 ft at 5 seconds and nw 1 foot at
3 seconds. 
.fri night...e winds around 5 kt, becoming ne after midnight.
seas around 2 ft. wave detail: e 2 ft at 6 seconds and nw 1 foot
at 3 seconds. 
.sat...ne winds 5 to 10 kt. seas 2 to 3 ft. wave detail: nw 3 ft
at 4 seconds and ne 2 ft at 4 seconds. 
.sat night...s winds around 5 kt, becoming w after midnight. seas
2 to 3 ft. wave detail: e 3 ft at 9 seconds and e 3 ft at
13 seconds. 
.sun and sun night...ne winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: nw 2 ft at 2 seconds and e 2 ft at 10 seconds. 
.mon through tue...ne winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. 
.tue night...e winds 10 to 15 kt with gusts up to 20 kt. seas
3 to 5 ft. a chance of showers.  

seas are reported as significant wave height, which is the
average of the highest third of the waves. individual wave
heights may be more than twice the significant wave height.

$$