Portland Tide Chart (ME)

When is high tide in Portland today?

Sat Oct 31: 3:27 AM (9.1 ft) and 3:39 PM (10.4 ft).

When is low tide in Portland today?

Sat Oct 31: 9:21 AM (0.7 ft) and 10:11 PM (-0.3 ft).

Portland (ME) tide times, Oct 31 – Nov 7

Day	Time	Tide	Height
Sat Oct 31	3:27 AM	High	9.1 ft (2.77 m)
	9:21 AM	Low	0.7 ft (0.21 m)
	3:39 PM	High	10.4 ft (3.16 m)
	10:11 PM	Low	-0.3 ft (-0.08 m)
Sun Nov 1	3:32 AM	High	8.9 ft (2.71 m)
	9:26 AM	Low	1.0 ft (0.30 m)
	3:46 PM	High	10.0 ft (3.04 m)
	10:17 PM	Low	0.0 ft (0.01 m)
Mon Nov 2	4:40 AM	High	8.8 ft (2.69 m)
	10:36 AM	Low	1.1 ft (0.34 m)
	4:56 PM	High	9.7 ft (2.95 m)
	11:23 PM	Low	0.2 ft (0.07 m)
Tue Nov 3	5:46 AM	High	9.0 ft (2.73 m)
	11:47 AM	Low	1.0 ft (0.32 m)
	6:05 PM	High	9.5 ft (2.89 m)
Wed Nov 4	12:28 AM	Low	0.3 ft (0.10 m)
	6:49 AM	High	9.2 ft (2.82 m)
	12:57 PM	Low	0.8 ft (0.24 m)
	7:12 PM	High	9.4 ft (2.88 m)
Thu Nov 5	1:27 AM	Low	0.3 ft (0.10 m)
	7:45 AM	High	9.6 ft (2.93 m)
	1:58 PM	Low	0.4 ft (0.12 m)
	8:11 PM	High	9.4 ft (2.88 m)
Fri Nov 6	2:20 AM	Low	0.3 ft (0.10 m)
	8:35 AM	High	9.9 ft (3.03 m)
	2:52 PM	Low	0.0 ft (0.01 m)
	9:04 PM	High	9.4 ft (2.88 m)
Sat Nov 7	3:07 AM	Low	0.4 ft (0.12 m)
	9:21 AM	High	10.1 ft (3.09 m)
	3:40 PM	Low	-0.2 ft (-0.07 m)
	9:52 PM	High	9.4 ft (2.85 m)

Portland is semidiurnal — paired highs (9.1 and 10.4 ft today) and paired lows of similar size. This is a big-tide station: an average swing this week moves 9.1 ft, so the water line, current and structure change dramatically through a single cycle. A 10.6 ft swing — Portland's biggest this table — runs from the 3:39 PM high on Sat Oct 31 into the next low. Portland tops out at 10.4 ft (Sat Oct 31 3:39 PM) and bottoms at -0.3 ft (Sat Oct 31 10:11 PM).

Moving-water windows — Portland

Portland mid-swing times below mark predicted peak flow on its 9.1 ft average cycle (why moving water matters):

• Sat Oct 31: 6:24 AM — 8.4 ft ebb · 12:30 PM — 9.7 ft flood · 6:55 PM — 10.6 ft ebb
• Sun Nov 1: 12:51 AM — 9.1 ft flood · 6:29 AM — 7.9 ft ebb · 12:36 PM — 9.0 ft flood · 7:01 PM — 9.9 ft ebb

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 9.1 ft, storm surge stacked on the 10.4 ft high is a real hazard at Portland — predictions are astronomical only. All Portland times station-local, refreshed 2026-10-30.