Climatological  Data
Copyright © 1996-2017 STORMFAX

Average Water Temperatures

CAPE COD ATLANTIC COAST
(degrees Fahrenheit)

Beach
JAN
FEB
MAR
APR
1/15
MAY
1/15
JUN
1/15
JUL
1/15
AUG
1/15
SEP
1/15
OCT
NOV
DEC
Chatham MA
37
35
39
44/48
54/57
61/64
68/69
70/70
67/65
58
50
42

CENTRAL ATLANTIC COAST
(degrees Fahrenheit)

Beach
JAN
FEB
MAR
APR
1/15
MAY
1/15
JUN
1/15
JUL
1/15
AUG
1/15
SEP
1/15
OCT
NOV
DEC
Atlantic City NJ
37
35
42
46/50
54/58
62/64
69/70
72/73
72/67
60
53
44
Ocean City MD
37
34
42
48/51
53/58
60/65
68/69
71/71
71/69
62
53
44

SOUTHERN ATLANTIC COAST
(degrees Fahrenheit)

Beach
JAN
FEB
MAR
APR
1/15
MAY
1/15
JUN
1/15
JUL
1/15
AUG
1/15
SEP
1/15
OCT
NOV
DEC
Myrtle Beach SC
48
50
55
62/66
70/75
77/80
81/83
83/82
81/79
69
61
53
Daytona Beach FL
61
59
65
70/73
75/78
79/80
80/80
80/81
83/82
77
71
65
Key West FL
69
70
75
79/79
82/83
86/86
87/87
87/87
86/86
82
76
72

OTHER ATLANTIC BEACHES
(degrees Fahrenheit)

Beach
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
Bermuda
64
63
64
66
72
78
82
83
80
74
70
65
San Juan PR
77
78
78
79
80
81
81
83
83
82
81
80

These water temperatures are climatological averages based on observations from
NOAA/National Ocean Service tide stations and NOAA/National Weather Service buoys.
They were computed from records ranging from several years to several decades.
Although ocean conditions vary from year to year, water temperatures are less variable than air temperatures,
so these averages can provide useful information for planning beach activities such as swimming or fishing.

Ocean Swimming Safety Guide

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