Napa Sea Conditions and Tide Table

Napa 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 — and sunset is at —.

Days 1–4 Weather Summary

Mostly dry. Cool air temperatures (max 18°C on Mon morning, min 8°C on Sat night). Wind will be generally light.

Days 5–7 Weather Summary

Mostly dry. Warm air temperatures (max 21°C on Wed morning, min 12°C on Thu night). Wind will be generally light.

Days 8–10 Weather Summary

Mostly dry. Warm (max 21°C on Sat morning, min 11°C on Fri night). Wind will be generally light.

Days 11–13 Weather Summary

Some drizzle, heaviest during Wed night. Very mild (max 17°C on Tue afternoon, min 12°C on Mon night). Wind will be generally light.

Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thu
18
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
night
AM
PM
Wave Height Map
High Tide
4:19AM1.95m
2:36PM2.47m
5:12AM1.96m
3:31PM2.33m
6:04AM1.98m
4:30PM2.15m
6:54AM2.02m
5:35PM1.95m
7:42AM2.06m
6:50PM1.77m
8:25AM2.12m
8:16PM1.65m
9:04AM2.16m
9:45PM1.60m
9:40AM2.20m
11:05PM1.62m
10:13AM2.23m
00:11AM1.68m
10:45AM2.25m
1:05AM1.73m
11:18AM2.27m
1:50AM1.78m
11:51AM2.28m
Low Tide
9:24PM-0.54m
9:12AM0.95m
10:16PM-0.44m
10:15AM0.95m
11:08PM-0.29m
11:26AM0.93m
00:01AM-0.12m
12:45PM0.85m
00:53AM0.06m
2:03PM0.73m
1:46AM0.24m
3:13PM0.57m
2:37AM0.42m
4:14PM0.39m
3:27AM0.59m
5:04PM0.22m
4:16AM0.73m
5:48PM0.07m
5:03AM0.85m
6:26PM-0.04m
5:47AM0.93m
7:01PM-0.12m
Wave
height (m) 
direction
period (s) 
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
cloud
clear
part cloud
cloud
part cloud
light rain
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
clear
clear
clear
clear
some clouds
cloudy
clear
some clouds
cloudy
some clouds
light rain
cloudy
cloudy
 km/h
5
ENE
5
ESE
5
SSE
5
NE
0
NE
5
S
5
NNE
0
SE
5
SSW
5
N
0
SSW
5
SSW
5
NNE
5
E
5
S
5
NE
5
ENE
5
ESE
5
NE
5
E
5
ESE
5
NE
5
E
5
SW
5
NW
0
ESE
5
SSE
5
N
5
NE
5
SW
0
SE
5
SW
5
SW
5
SSW
5
S
5
SSW
 mm 
1
max°C
9
15
15
12
18
17
14
18
18
14
21
20
16
21
20
15
21
20
14
21
20
14
19
19
14
19
19
14
16
17
14
16
15
14
15
15
Moonrise
7:56
9:10
10:19
11:24
12:26
1:26
2:26
3:26
4:27
5:28
6:28
Moonset
10:17
10:56
11:28
11:54
12:18
12:39
1:01
1:23
1:48
2:17
2:52
3:33
Sunrise
7:11
7:13
7:13
7:15
7:15
7:16
7:16
7:18
7:18
7:18
7:20
7:20
Sunset
4:47
4:47
4:47
4:47
4:47
4:49
4:49
4:49
4:49
4:50
4:50
4:50
Today's sea temperature in Napa is
13.6° C
(Statistics for 06 Dec 1981-2005 – mean: 12.7 max: 15.4 min: 11.5°C)
Issued (local time): 9 pm Saturday 06 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest