Tides Today & Tomorrow in Block Island, RI
Sun, Aug 16· live tide chart, 7-day tide table, sun & moon, and surf conditions for Block Island.
Block Island (Old Harbor) · Old Harbor
Reading the tide…
Block Island tide table — next 7 days
| Day | High tides | Low tides | Sun | Moon |
|---|---|---|---|---|
| Sun, Aug 16 | 11:00 AM (3.6 ft)11:14 PM (3.1 ft) | 4:30 AM (-0.1 ft)5:02 PM (0.2 ft) | ↑ 5:56 AM↓ 7:45 PM | 🌒 Waxing Crescent |
| Mon, Aug 17 | 11:46 AM (3.4 ft)11:58 PM (2.7 ft) | 4:57 AM (0.1 ft)5:50 PM (0.5 ft) | ↑ 5:57 AM↓ 7:44 PM | 🌒 Waxing Crescent |
| Tue, Aug 18 | 12:33 PM (3.1 ft) | 5:28 AM (0.4 ft)6:49 PM (0.7 ft) | ↑ 5:58 AM↓ 7:42 PM | 🌒 Waxing Crescent |
| Wed, Aug 19 | 12:45 AM (2.5 ft)1:22 PM (2.9 ft) | 6:05 AM (0.6 ft)7:59 PM (0.8 ft) | ↑ 5:59 AM↓ 7:41 PM | 🌒 Waxing Crescent |
| Thu, Aug 20 | 1:34 AM (2.3 ft)2:16 PM (2.7 ft) | 6:52 AM (0.7 ft)9:10 PM (0.9 ft) | ↑ 6:00 AM↓ 7:39 PM | 🌓 First Quarter |
| Fri, Aug 21 | 2:30 AM (2.1 ft)3:23 PM (2.6 ft) | 7:49 AM (0.9 ft)10:17 PM (0.9 ft) | ↑ 6:01 AM↓ 7:38 PM | 🌓 First Quarter |
| Sat, Aug 22 | 3:42 AM (2.1 ft)4:38 PM (2.7 ft) | 9:04 AM (0.9 ft)11:13 PM (0.9 ft) | ↑ 6:02 AM↓ 7:36 PM | 🌔 Waxing Gibbous |
▸ Show the full 30-day tide forecast for Block Island▾ Block Island tide forecast — days 8–30
| Day | High tides | Low tides | Sun | Moon |
|---|---|---|---|---|
| Sun, Aug 23 | 4:56 AM (2.2 ft)5:36 PM (2.8 ft) | 10:36 AM (0.8 ft) | ↑ 6:03 AM↓ 7:35 PM | 🌔 Waxing Gibbous |
| Mon, Aug 24 | 5:49 AM (2.3 ft)6:20 PM (2.9 ft) | 12:01 AM (0.7 ft)11:36 AM (0.7 ft) | ↑ 6:04 AM↓ 7:33 PM | 🌔 Waxing Gibbous |
| Tue, Aug 25 | 6:31 AM (2.5 ft)6:57 PM (3.1 ft) | 12:42 AM (0.6 ft)12:23 PM (0.5 ft) | ↑ 6:05 AM↓ 7:32 PM | 🌔 Waxing Gibbous |
| Wed, Aug 26 | 7:08 AM (2.8 ft)7:31 PM (3.2 ft) | 1:19 AM (0.4 ft)1:06 PM (0.3 ft) | ↑ 6:06 AM↓ 7:30 PM | 🌔 Waxing Gibbous |
| Thu, Aug 27 | 7:43 AM (3.0 ft)8:03 PM (3.3 ft) | 1:52 AM (0.3 ft)1:46 PM (0.2 ft) | ↑ 6:07 AM↓ 7:29 PM | 🌕 Full Moon |
| Fri, Aug 28 | 8:19 AM (3.2 ft)8:38 PM (3.3 ft) | 2:20 AM (0.1 ft)2:24 PM (0.2 ft) | ↑ 6:08 AM↓ 7:27 PM | 🌕 Full Moon |
| Sat, Aug 29 | 8:56 AM (3.4 ft)9:15 PM (3.3 ft) | 2:45 AM (0.0 ft)3:01 PM (0.1 ft) | ↑ 6:09 AM↓ 7:25 PM | 🌖 Waning Gibbous |
| Sun, Aug 30 | 9:35 AM (3.5 ft)9:54 PM (3.2 ft) | 3:11 AM (0.0 ft)3:39 PM (0.2 ft) | ↑ 6:10 AM↓ 7:24 PM | 🌖 Waning Gibbous |
| Mon, Aug 31 | 10:16 AM (3.5 ft)10:37 PM (3.1 ft) | 3:41 AM (0.0 ft)4:18 PM (0.2 ft) | ↑ 6:11 AM↓ 7:22 PM | 🌖 Waning Gibbous |
| Tue, Sep 1 | 11:01 AM (3.5 ft)11:25 PM (2.9 ft) | 4:16 AM (0.0 ft)5:03 PM (0.4 ft) | ↑ 6:12 AM↓ 7:21 PM | 🌖 Waning Gibbous |
| Wed, Sep 2 | 11:51 AM (3.5 ft) | 4:58 AM (0.1 ft)6:00 PM (0.5 ft) | ↑ 6:13 AM↓ 7:19 PM | 🌖 Waning Gibbous |
| Thu, Sep 3 | 12:19 AM (2.8 ft)12:47 PM (3.4 ft) | 5:47 AM (0.2 ft)7:27 PM (0.6 ft) | ↑ 6:14 AM↓ 7:17 PM | 🌖 Waning Gibbous |
| Fri, Sep 4 | 1:19 AM (2.6 ft)1:50 PM (3.3 ft) | 6:48 AM (0.3 ft)9:05 PM (0.6 ft) | ↑ 6:15 AM↓ 7:16 PM | 🌗 Last Quarter |
| Sat, Sep 5 | 2:25 AM (2.6 ft)3:01 PM (3.2 ft) | 8:01 AM (0.4 ft)10:19 PM (0.5 ft) | ↑ 6:16 AM↓ 7:14 PM | 🌘 Waning Crescent |
| Sun, Sep 6 | 3:38 AM (2.7 ft)4:18 PM (3.3 ft) | 9:32 AM (0.4 ft)11:18 PM (0.3 ft) | ↑ 6:17 AM↓ 7:12 PM | 🌘 Waning Crescent |
| Mon, Sep 7 | 4:50 AM (2.9 ft)5:26 PM (3.4 ft) | 10:57 AM (0.2 ft) | ↑ 6:18 AM↓ 7:11 PM | 🌘 Waning Crescent |
| Tue, Sep 8 | 5:51 AM (3.1 ft)6:21 PM (3.6 ft) | 12:09 AM (0.2 ft)12:01 PM (0.0 ft) | ↑ 6:19 AM↓ 7:09 PM | 🌘 Waning Crescent |
| Wed, Sep 9 | 6:44 AM (3.4 ft)7:10 PM (3.7 ft) | 12:55 AM (0.0 ft)12:55 PM (-0.1 ft) | ↑ 6:20 AM↓ 7:07 PM | 🌘 Waning Crescent |
| Thu, Sep 10 | 7:33 AM (3.7 ft)7:55 PM (3.7 ft) | 1:36 AM (-0.1 ft)1:45 PM (-0.2 ft) | ↑ 6:21 AM↓ 7:05 PM | 🌘 Waning Crescent |
| Fri, Sep 11 | 8:19 AM (3.8 ft)8:38 PM (3.6 ft) | 2:13 AM (-0.2 ft)2:31 PM (-0.2 ft) | ↑ 6:22 AM↓ 7:04 PM | 🌑 New Moon |
| Sat, Sep 12 | 9:02 AM (3.8 ft)9:19 PM (3.4 ft) | 2:46 AM (-0.2 ft)3:12 PM (-0.1 ft) | ↑ 6:23 AM↓ 7:02 PM | 🌑 New Moon |
| Sun, Sep 13 | 9:44 AM (3.7 ft)9:59 PM (3.2 ft) | 3:14 AM (-0.1 ft)3:50 PM (0.1 ft) | ↑ 6:24 AM↓ 7:00 PM | 🌒 Waxing Crescent |
| Mon, Sep 14 | 10:24 AM (3.5 ft)10:39 PM (2.9 ft) | 3:40 AM (0.0 ft)4:26 PM (0.3 ft) | ↑ 6:25 AM↓ 6:59 PM | 🌒 Waxing Crescent |
Times are local (Block Island). Heights in feet above MLLW. Source: NOAA CO-OPS, station 8459338 (Block Island (Old Harbor)).
Current conditions
Water 74°F. Surf 2.0 ft at 3s.
UV index today: Very High.
Source: NDBC 44097 · NWS (BOX)
About tides at Block Island
Block Island, RI sits in the New England region. Its tide predictions come from the Block Island (Old Harbor) station (NOAA 8459338), a harmonic NOAA reference station, so predictions come straight from its own published constituents. This spot is an open-ocean beach, so the tide here is the surf-side tide — the one that matters for swimming, surfing, shelling, and how much dry sand you get. Tides here swing between about -0.2 ft and 3.8 ft (MLLW) over the next 30 days. The chart above is live, and the 30-day tide forecast below lists every high and low with heights, plus sunrise, sunset, and the moon — everything you need to time a beach day, a surf session, or a low-tide walk.
Tides near Block Island
Block Island tide FAQ
- What time is high tide in Block Island today?
- High tide in Block Island, RI today (Sun, Aug 16) is at 11:00 AM (3.6 ft) and 11:14 PM (3.1 ft), based on NOAA predictions for Block Island (Old Harbor).
- What time is low tide in Block Island today?
- Low tide today is at 4:30 AM (-0.1 ft) and 5:02 PM (0.2 ft). Low tide is the best window for shelling, tide pools, and wide-beach walks.
- Is the tide coming in or going out in Block Island right now?
- The live chart at the top of this page shows the current direction — chevrons flow shoreward when the tide is coming in and seaward when it's going out, with the live rate in ft/hr. Tides here reverse roughly every six hours.
- How big are the tides in Block Island?
- Over the next 30 days, Block Island ranges from about -0.2 ft at the lowest lows to 3.8 ft at the highest highs (MLLW datum). The moon is currently waxing crescent — tides run largest near full and new moons (spring tides) and smallest near the quarters (neap tides).
- Where does this tide data come from?
- Predictions are published by NOAA CO-OPS for the Block Island (Old Harbor) station (ID 8459338), refreshed continuously. Heights are in feet above MLLW (mean lower low water). Predictions are not suitable for navigation.
Updated Sun, Aug 16 at 8:36 PM local · Tide predictions courtesy of NOAA CO-OPS · not for navigation.