Castle Island Tides
Last Tide - High
3.0'
9:14 AM
2 hours, 23 minutes ago
Next Tide - Low
0.3'
2:52 PM
3 hours, 14 minutes from now
☀️
Sunset
9:26 PM
9 hours, 48 minutes from now
🌑
Moonset
10:25 PM
New Moon · 4%
10 hours, 48 minutes from now
Today
Tomorrow
Friday - July 17, 2026
Saturday - July 18, 2026
Sunday - July 19, 2026
Monday - July 20, 2026
Tuesday - July 21, 2026
7-Day Insights
Tidal Extremes
Highest Tide
Wed, Jul 15
4.6' at 9:30 PM
Unusually high
Lowest Tide
Thu, Jul 16
0.1' at 4:08 AM
Unusually low
Biggest Tidal Ranges
Largest
Wed, Jul 15
4.5' tidal range
Unusually large
Smallest
Tue, Jul 21
1.8' tidal range
Smaller than usual