Wellfleet, Cape Cod Bay Sea Conditions and Tide Table

Wellfleet, Cape Cod Bay Sea Conditions table showing wave height, swell direction and period.

High and low tide times are also provided on the table along with the moon phase and forecast weather. Sunrise today is at 07:01 AM and sunset is at 04:09 PM.

Days 1–3 Weather Summary

Moderate rain (total 10mm), heaviest on Fri afternoon. Icy conditions (max 13°C on Fri morning, min -1°C on Fri night). Winds decreasing (severe gales from the S on Fri morning, light winds from the W by Sat afternoon).

Days 4–6 Weather Summary

Mostly dry. Icy conditions (max 8°C on Sat night, min -4°C on Mon morning). Winds decreasing (near gales from the NW on Mon morning, moderate winds from the W by Mon night).

Days 7–9 Weather Summary

A dusting of snow turning to light rain (total 9mm) on Fri afternoon. Freeze-thaw conditions (max 5°C on Tue night, min -1°C on Wed afternoon). Mainly strong winds.

Days 10–12 Weather Summary

A dusting of new snow. Freeze-thaw conditions (max 3°C on Fri night, min -9°C on Sat night). Winds decreasing (near gales from the NW on Sat night, calm by Mon afternoon).

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Mon
29
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
Wave Height Map
High Tide
10:06AM3.12m
10:46PM2.69m
10:45AM3.15m
11:26PM2.70m
11:24AM3.16m
00:06AM2.71m
12:04PM3.17m
00:45AM2.72m
12:44PM3.16m
1:24AM2.74m
1:24PM3.15m
2:04AM2.77m
2:06PM3.12m
2:44AM2.81m
2:51PM3.08m
3:28AM2.88m
3:40PM3.02m
4:16AM2.96m
4:34PM2.96m
5:07AM3.07m
5:32PM2.91m
6:00AM3.19m
6:31PM2.88m
Low Tide
4:49PM0.16m
4:49AM0.49m
5:28PM0.12m
5:29AM0.47m
6:07PM0.10m
6:08AM0.45m
6:46PM0.08m
6:49AM0.45m
7:25PM0.06m
7:31AM0.44m
8:05PM0.06m
8:13AM0.42m
8:46PM0.07m
8:59AM0.40m
9:30PM0.09m
9:50AM0.37m
10:18PM0.12m
10:45AM0.31m
11:08PM0.14m
11:42AM0.22m
00:01AM0.15m
12:41PM0.11m
Wave
height (m) 
direction
period (s) 
0.5
SE
9
0.7
SSE
3
1.3
SSE
5
2.2
SE
7
3
SE
10
2.4
WNW
6
1.7
NW
6
0.9
ESE
10
1
ESE
10
1.4
SW
5
1.1
ESE
9
1.8
NW
6
2.5
NNW
7
2.2
NNW
6
1.1
N
6
1
WSW
4
1.6
WSW
5
1.3
W
5
1.8
NW
6
1.4
NNW
6
0.8
NNE
6
0.7
SW
3
0.5
W
3
0.9
NE
4
0.9
NE
5
0.9
ENE
5
1.2
E
6
1.5
N
6
1.7
NNW
6
2.1
NNW
6
2
N
7
2
N
6
1.2
N
6
0.8
NNE
6
0.6
NE
6
clear
clear
rain showers
light rain
rain showers
part cloud
clear
part cloud
cloud
clear
part cloud
part cloud
part cloud
clear
part cloud
cloud
cloud
part cloud
clear
clear
part cloud
light rain
part cloud
cloud
light rain
light snow
cloud
part cloud
clear
cloud
part cloud
cloud
part cloud
cloud
cloud
clear
clear
rain shwrs
light rain
rain shwrs
some clouds
clear
some clouds
cloudy
clear
some clouds
some clouds
some clouds
clear
some clouds
cloudy
cloudy
some clouds
clear
clear
some clouds
light rain
some clouds
cloudy
light rain
light snow
cloudy
some clouds
clear
cloudy
some clouds
cloudy
some clouds
cloudy
cloudy
 km/h
10
SSE
30
S
45
S
55
SSE
50
SW
55
W
30
WNW
10
W
40
SSW
40
WSW
35
W
45
WNW
55
NW
50
NW
25
W
40
SW
50
SW
40
W
45
NW
35
NW
10
SSW
25
SW
20
WNW
30
NE
30
ESE
25
NE
40
NW
35
NW
40
NW
50
NW
40
NNW
45
NNW
25
N
10
N
0
N
 mm 
1
5
4
3
2
4
max°C
4
7
12
13
11
2
0
2
8
7
6
0
-2
-2
0
4
5
5
0
0
1
4
4
2
2
3
3
-4
-3
-5
-6
-5
-5
-4
-4
Moonrise
6:05
7:03
7:55
8:39
9:16
9:46
10:11
10:33
10:54
11:15
11:38
12:04
Moonset
2:43
3:30
4:26
5:28
6:34
7:42
8:50
9:58
11:07
12:17
1:32
Sunrise
7:01
7:03
7:03
7:03
7:05
7:05
7:05
7:05
7:05
7:05
7:07
7:07
Sunset
4:09
4:10
4:10
4:12
4:12
4:13
4:13
4:14
4:14
4:15
4:15
4:16
Today's sea temperature in Wellfleet, Cape Cod Bay is
7.2° C
(Statistics for 18 Dec 1981-2005 – mean: 7.5 max: 9.8 min: 5.7°C)
Issued (local time): 12 am Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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