Portland, ME Tide Times & Tide Chart
High and low tide predictions for Portland, ME, New England (NOAA station 8418150). Heights are in feet relative to Mean Lower Low Water (MLLW) — negative values are minus tides, the best for tidepooling.
Plan a visit — find your tide window →Upcoming tides
Sunday, September 27
| 5:48 AM | Low tide | -0.06 ft |
| 12:01 PM | High tide | 10.23 ft |
| 6:12 PM | Low tide | -0.44 ft |
Monday, September 28
| 12:25 AM | High tide | 10.01 ft |
| 6:27 AM | Low tide | -0.12 ft |
| 12:39 PM | High tide | 10.54 ft |
| 6:55 PM | Low tide | -0.68 ft |
Tuesday, September 29
| 1:07 AM | High tide | 9.92 ft |
| 7:08 AM | Low tide | -0.06 ft |
| 1:19 PM | High tide | 10.71 ft |
| 7:40 PM | Low tide | -0.75 ft |
Wednesday, September 30
| 1:52 AM | High tide | 9.71 ft |
| 7:51 AM | Low tide | 0.12 ft |
| 2:03 PM | High tide | 10.70 ft |
| 8:28 PM | Low tide | -0.63 ft |
Thursday, October 1
| 2:41 AM | High tide | 9.38 ft |
| 8:40 AM | Low tide | 0.40 ft |
| 2:53 PM | High tide | 10.52 ft |
| 9:22 PM | Low tide | -0.35 ft |
Astronomical predictions from NOAA CO-OPS; actual levels vary with weather and swell.
Tidepooling near Portland, ME
- Two Lights State Park, Cape Elizabeth — Folded metamorphic ledges full of pools; Kettle Cove next door is gentler for kids.
- Giant's Stairs, Bailey Island — A dramatic rock staircase into the sea with pools along the Harpswell shore path.
What to look for
green sea urchins, northern sea stars, rock crabs, periwinkles, tortoiseshell limpets, Irish moss and knotted wrack beds.
Best time of year
Two low tides a day year-round; the biggest lows come with the new and full moon. June through September brings warm rocks, clear water, and the most life in the pools.
Conditions and access change — check the park's official page and local hazard advisories before you go, and confirm the tide on the day. New to tidepools? Read how to go tidepooling safely.