Portland Tide Chart (ME)

Portland (ME) tide times, Sep 8 – Sep 16

Day	Time	Tide	Height
Tue Sep 8	3:03 AM	Low	-0.0 ft (-0.01 m)
	9:17 AM	High	8.9 ft (2.72 m)
	3:14 PM	Low	0.6 ft (0.18 m)
	9:34 PM	High	10.4 ft (3.18 m)
Wed Sep 9	4:00 AM	Low	-0.4 ft (-0.11 m)
	10:13 AM	High	9.4 ft (2.87 m)
	4:12 PM	Low	0.1 ft (0.04 m)
	10:30 PM	High	10.7 ft (3.25 m)
Thu Sep 10	4:51 AM	Low	-0.6 ft (-0.18 m)
	11:04 AM	High	9.9 ft (3.01 m)
	5:06 PM	Low	-0.2 ft (-0.07 m)
	11:22 PM	High	10.7 ft (3.26 m)
Fri Sep 11	5:38 AM	Low	-0.7 ft (-0.20 m)
	11:51 AM	High	10.2 ft (3.10 m)
	5:56 PM	Low	-0.4 ft (-0.14 m)
Sat Sep 12	12:11 AM	High	10.6 ft (3.23 m)
	6:22 AM	Low	-0.5 ft (-0.16 m)
	12:35 PM	High	10.3 ft (3.15 m)
	6:44 PM	Low	-0.5 ft (-0.15 m)
Sun Sep 13	12:58 AM	High	10.3 ft (3.13 m)
	7:04 AM	Low	-0.2 ft (-0.07 m)
	1:17 PM	High	10.3 ft (3.14 m)
	7:29 PM	Low	-0.4 ft (-0.11 m)
Mon Sep 14	1:43 AM	High	9.8 ft (3.00 m)
	7:45 AM	Low	0.2 ft (0.06 m)
	1:58 PM	High	10.1 ft (3.08 m)
	8:14 PM	Low	-0.1 ft (-0.03 m)
Tue Sep 15	2:28 AM	High	9.3 ft (2.84 m)
	8:26 AM	Low	0.7 ft (0.22 m)
	2:39 PM	High	9.8 ft (2.98 m)
	9:00 PM	Low	0.3 ft (0.09 m)
Wed Sep 16	3:14 AM	High	8.8 ft (2.68 m)
	9:09 AM	Low	1.2 ft (0.37 m)
	3:24 PM	High	9.4 ft (2.87 m)
	9:49 PM	Low	0.7 ft (0.23 m)

Portland is semidiurnal — paired highs (8.9 and 10.4 ft today) and paired lows of similar size. This is a big-tide station: an average swing this week moves 10.0 ft, so the water line, current and structure change dramatically through a single cycle. A 11.4 ft swing — Portland's biggest this table — runs from the 11:22 PM high on Thu Sep 10 into the next low. Portland tops out at 10.7 ft (Thu Sep 10 11:22 PM) and bottoms at -0.7 ft (Fri Sep 11 5:38 AM).

Moving-water windows — Portland

Portland mid-swing times below mark predicted peak flow on its 10.0 ft average cycle (why moving water matters):

• Tue Sep 8: 6:10 AM — 9.0 ft flood · 12:15 PM — 8.4 ft ebb · 6:24 PM — 9.9 ft flood
• Wed Sep 9: 12:47 AM — 10.8 ft ebb · 7:06 AM — 9.8 ft flood · 1:12 PM — 9.3 ft ebb · 7:21 PM — 10.5 ft flood

Tide charts near Portland

• Wells tide chart~46 km
• Hampton tide chart~97 km
• Boston tide chart~159 km

Portland numbers: NOAA CO-OPS #8418150 (Portland), 1.2 km off Portland center; this open-water pick beat 17 closer-in candidates. On a coast that swings 10.0 ft, storm surge stacked on the 10.7 ft high is a real hazard at Portland — predictions are astronomical only. All Portland times station-local, refreshed 2026-09-08.