20 (水)	03:54	09:52	15:45	22:16
	145cm	49cm	147cm	23cm
大潮 出 05:19 入 17:36 出 07:00 入 17:54

苫小牧（北海道）2028年09月20日の10分毎の潮の高低差を確認できます。
また1日の潮の高低差が1番大きい（潮の流れが大きい）時間に「最大潮位差」と明記してます。

時刻	潮位	高低差	各ポイント
9/20 00:00	64.8	↑4.0
9/20 00:10	68.9	↑4.1
9/20 00:20	73.3	↑4.4
9/20 00:30	77.9	↑4.6
9/20 00:40	82.6	↑4.7
9/20 00:50	87.4	↑4.8
9/20 01:00	92.3	↑4.9
9/20 01:10	97.3	↑5.0
9/20 01:20	102.2	↑4.9
9/20 01:30	107.0	↑4.8
9/20 01:40	111.7	↑4.7
9/20 01:50	116.3	↑4.6
9/20 02:00	120.6	↑4.3
9/20 02:10	124.6	↑4.0
9/20 02:20	128.3	↑3.7
9/20 02:30	131.7	↑3.4
9/20 02:40	134.7	↑3.0
9/20 02:50	137.3	↑2.6
9/20 03:00	139.6	↑2.3
9/20 03:10	141.4	↑1.8
9/20 03:20	142.8	↑1.4
9/20 03:30	143.8	↑1.0
9/20 03:40	144.5	↑0.7
9/20 03:50	144.7	↑0.2	満潮
9/20 04:00	144.7	0
9/20 04:10	144.3	↓-0.4
9/20 04:20	143.5	↓-0.8
9/20 04:30	142.5	↓-1.0
9/20 04:40	141.2	↓-1.3
9/20 04:50	139.7	↓-1.5
9/20 05:00	137.8	↓-1.9
9/20 05:10	135.7	↓-2.1
9/20 05:20	133.4	↓-2.3
9/20 05:30	130.8	↓-2.6
9/20 05:40	128.0	↓-2.8
9/20 05:50	124.9	↓-3.1
9/20 06:00	121.6	↓-3.3
9/20 06:10	118.1	↓-3.5
9/20 06:20	114.3	↓-3.8
9/20 06:30	110.4	↓-3.9
9/20 06:40	106.3	↓-4.1
9/20 06:50	102.0	↓-4.3
9/20 07:00	97.6	↓-4.4
9/20 07:10	93.2	↓-4.4
9/20 07:20	88.8	↓-4.4
9/20 07:30	84.3	↓-4.5
9/20 07:40	80.0	↓-4.3
9/20 07:50	75.8	↓-4.2
9/20 08:00	71.7	↓-4.1
9/20 08:10	67.9	↓-3.8
9/20 08:20	64.3	↓-3.6
9/20 08:30	61.1	↓-3.2
9/20 08:40	58.2	↓-2.9
9/20 08:50	55.6	↓-2.6
9/20 09:00	53.5	↓-2.1
9/20 09:10	51.7	↓-1.8
9/20 09:20	50.3	↓-1.4
9/20 09:30	49.3	↓-1.0
9/20 09:40	48.8	↓-0.5
9/20 09:50	48.5	↓-0.3	干潮
9/20 10:00	48.7	↑0.2
9/20 10:10	49.2	↑0.5
9/20 10:20	50.0	↑0.8
9/20 10:30	51.1	↑1.1
9/20 10:40	52.5	↑1.4
9/20 10:50	54.2	↑1.7
9/20 11:00	56.2	↑2.0
9/20 11:10	58.4	↑2.2
9/20 11:20	60.9	↑2.5
9/20 11:30	63.6	↑2.7
9/20 11:40	66.5	↑2.9
9/20 11:50	69.7	↑3.2
9/20 12:00	73.1	↑3.4
9/20 12:10	76.7	↑3.6
9/20 12:20	80.5	↑3.8
9/20 12:30	84.5	↑4.0
9/20 12:40	88.7	↑4.2
9/20 12:50	93.0	↑4.3
9/20 13:00	97.4	↑4.4
9/20 13:10	101.9	↑4.5
9/20 13:20	106.4	↑4.5
9/20 13:30	110.9	↑4.5
9/20 13:40	115.3	↑4.4
9/20 13:50	119.6	↑4.3
9/20 14:00	123.8	↑4.2
9/20 14:10	127.6	↑3.8
9/20 14:20	131.3	↑3.7
9/20 14:30	134.6	↑3.3
9/20 14:40	137.5	↑2.9
9/20 14:50	140.0	↑2.5
9/20 15:00	142.1	↑2.1
9/20 15:10	143.8	↑1.7
9/20 15:20	145.1	↑1.3
9/20 15:30	145.9	↑0.8
9/20 15:40	146.3	↑0.4	満潮
9/20 15:50	146.2	↓-0.1
9/20 16:00	145.7	↓-0.5
9/20 16:10	144.9	↓-0.8
9/20 16:20	143.7	↓-1.2
9/20 16:30	142.1	↓-1.6
9/20 16:40	140.3	↓-1.8
9/20 16:50	138.1	↓-2.2
9/20 17:00	135.7	↓-2.4
9/20 17:10	133.0	↓-2.7
9/20 17:20	130.1	↓-2.9
9/20 17:30	126.9	↓-3.2
9/20 17:40	123.5	↓-3.4
9/20 17:50	119.9	↓-3.6
9/20 18:00	116.0	↓-3.9
9/20 18:10	112.0	↓-4.0
9/20 18:20	107.7	↓-4.3
9/20 18:30	103.3	↓-4.4
9/20 18:40	98.7	↓-4.6
9/20 18:50	93.9	↓-4.8
9/20 19:00	89.0	↓-4.9
9/20 19:10	84.0	↓-5.0
9/20 19:20	78.9	↓-5.1
9/20 19:30	73.7	↓-5.2	最大潮位差
9/20 19:40	68.6	↓-5.1
9/20 19:50	63.6	↓-5.0
9/20 20:00	58.6	↓-5.0
9/20 20:10	53.8	↓-4.8
9/20 20:20	49.2	↓-4.6
9/20 20:30	44.9	↓-4.3
9/20 20:40	40.9	↓-4.0
9/20 20:50	37.2	↓-3.7
9/20 21:00	33.9	↓-3.3
9/20 21:10	31.0	↓-2.9
9/20 21:20	28.5	↓-2.5
9/20 21:30	26.4	↓-2.1
9/20 21:40	24.8	↓-1.6
9/20 21:50	23.5	↓-1.3
9/20 22:00	22.7	↓-0.8
9/20 22:10	22.3	↓-0.4	干潮
9/20 22:20	22.3	0
9/20 22:30	22.7	↑0.4
9/20 22:40	23.4	↑0.7
9/20 22:50	24.4	↑1.0
9/20 23:00	25.8	↑1.4
9/20 23:10	27.5	↑1.7
9/20 23:20	29.4	↑1.9
9/20 23:30	31.7	↑2.3
9/20 23:40	34.2	↑2.5
9/20 23:50	37.0	↑2.8