Heights in feet above Mean Lower Low Water (MLLW). Dots are NOAA's predicted highs and lows; the line between them is our interpolation. Shaded: night.
| Tide | Time | Height |
|---|---|---|
| Low tide | 2:12 AM | -0.40 ft |
| High tide | 8:53 AM | 4.40 ft |
| Low tide | 3:13 PM | -0.21 ft |
| High tide | 9:21 PM | 3.64 ft |
| Day | High tides | Low tides |
|---|---|---|
| Today Tue, Oct 27 | 8:53 AM 4.4 ft9:21 PM 3.6 ft | 2:12 AM -0.4 ft3:13 PM -0.2 ft |
| Tomorrow Wed, Oct 28 | 9:42 AM 4.3 ft10:13 PM 3.6 ft | 2:57 AM -0.4 ft4:00 PM -0.1 ft |
| Thu, Oct 29 | 10:35 AM 4.2 ft11:08 PM 3.4 ft | 3:44 AM -0.3 ft4:49 PM 0.1 ft |
| Fri, Oct 30 | 11:33 AM 4.0 ft | 4:34 AM -0.1 ft5:46 PM 0.3 ft |
| Sat, Oct 31 | 12:08 AM 3.4 ft12:35 PM 3.8 ft | 5:28 AM 0.2 ft7:18 PM 0.5 ft |
| Sun, Nov 1 | 1:09 AM 3.3 ft12:38 PM 3.6 ft | 5:33 AM 0.5 ft8:05 PM 0.6 ft |
| Mon, Nov 2 | 1:11 AM 3.3 ft1:40 PM 3.5 ft | 7:17 AM 0.7 ft9:08 PM 0.5 ft |
Orange: measured by NOAA's sensor, last 24 hours (6-minute data, preliminary). Dashed: predicted tide, through the next 24 hours. The prediction contains only the astronomical tide; wind, air pressure and river flow move the real water level away from it.
Castle Hill is a subordinate station: NOAA computes its tides from Newport with fixed time and height corrections.
All Rhode Island tide stations →
On Tuesday, October 27, high tide at Castle Hill is at 8:53 AM (4.4 ft) and 9:21 PM (3.6 ft); low tide is at 2:12 AM (-0.4 ft) and 3:13 PM (-0.2 ft) (EDT, heights above MLLW). The table above lists the next 7 days.
The highest predicted tide in the next 12 months is 4.7 ft on September 30, 2027 at 8:17 AM. The largest tides fall a day or two after a full or new moon, especially when the Moon is closest to Earth.
Yes — on 128 days in the next 12 months the low tide drops below 0 ft (MLLW). The lowest is -0.8 ft on January 23, 2027 at 1:27 AM. Minus tides expose the most shoreline, which is why tide-poolers look for them.
Station local time (EDT at the time this page was built), with daylight saving time applied where the area observes it — the same convention as NOAA's own tide tables.
From NOAA CO-OPS, the U.S. government tide station network (tidesandcurrents.noaa.gov); the predictions are public domain. Castle Hill is a subordinate station: NOAA derives its times and heights from the reference station Newport with fixed corrections. The curve between highs and lows is our interpolation. This page is not for navigation.