20 (日)	04:46	10:48	16:51	23:16
	138cm	51cm	139cm	38cm
中潮 出 05:19 入 17:36 出 19:25 入 07:59

苫小牧（北海道）2054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	50.6	↑2.0
9/20 00:10	52.8	↑2.2
9/20 00:20	55.2	↑2.4
9/20 00:30	57.8	↑2.6
9/20 00:40	60.6	↑2.8
9/20 00:50	63.6	↑3.0
9/20 01:00	66.8	↑3.2
9/20 01:10	70.2	↑3.4
9/20 01:20	73.8	↑3.6
9/20 01:30	77.6	↑3.8
9/20 01:40	81.5	↑3.9
9/20 01:50	85.6	↑4.1
9/20 02:00	89.8	↑4.2
9/20 02:10	94.0	↑4.2
9/20 02:20	98.3	↑4.3	最大潮位差
9/20 02:30	102.6	↑4.3	最大潮位差
9/20 02:40	106.9	↑4.3	最大潮位差
9/20 02:50	111.0	↑4.1
9/20 03:00	115.0	↑4.0
9/20 03:10	118.8	↑3.8
9/20 03:20	122.3	↑3.5
9/20 03:30	125.5	↑3.2
9/20 03:40	128.4	↑2.9
9/20 03:50	130.8	↑2.4
9/20 04:00	132.9	↑2.1
9/20 04:10	134.6	↑1.7
9/20 04:20	135.8	↑1.2
9/20 04:30	136.6	↑0.8
9/20 04:40	137.0	↑0.4	満潮
9/20 04:50	137.0	0
9/20 05:00	136.6	↓-0.4
9/20 05:10	135.9	↓-0.7
9/20 05:20	134.9	↓-1.0
9/20 05:30	133.5	↓-1.4
9/20 05:40	132.0	↓-1.5
9/20 05:50	130.2	↓-1.8
9/20 06:00	128.2	↓-2.0
9/20 06:10	126.0	↓-2.2
9/20 06:20	123.6	↓-2.4
9/20 06:30	121.1	↓-2.5
9/20 06:40	118.5	↓-2.6
9/20 06:50	115.7	↓-2.8
9/20 07:00	112.8	↓-2.9
9/20 07:10	109.8	↓-3.0
9/20 07:20	106.6	↓-3.2
9/20 07:30	103.3	↓-3.3
9/20 07:40	99.9	↓-3.4
9/20 07:50	96.4	↓-3.5
9/20 08:00	92.8	↓-3.6
9/20 08:10	89.2	↓-3.6
9/20 08:20	85.4	↓-3.8
9/20 08:30	81.7	↓-3.7
9/20 08:40	78.0	↓-3.7
9/20 08:50	74.4	↓-3.6
9/20 09:00	70.9	↓-3.5
9/20 09:10	67.5	↓-3.4
9/20 09:20	64.4	↓-3.1
9/20 09:30	61.5	↓-2.9
9/20 09:40	58.9	↓-2.6
9/20 09:50	56.6	↓-2.3
9/20 10:00	54.6	↓-2.0
9/20 10:10	53.0	↓-1.6
9/20 10:20	51.8	↓-1.2
9/20 10:30	51.0	↓-0.8
9/20 10:40	50.6	↓-0.4	干潮
9/20 10:50	50.5	↓-0.1
9/20 11:00	50.8	↑0.3
9/20 11:10	51.4	↑0.6
9/20 11:20	52.4	↑1.0
9/20 11:30	53.6	↑1.2
9/20 11:40	55.1	↑1.5
9/20 11:50	56.8	↑1.7
9/20 12:00	58.7	↑1.9
9/20 12:10	60.8	↑2.1
9/20 12:20	63.0	↑2.2
9/20 12:30	65.4	↑2.4
9/20 12:40	68.0	↑2.6
9/20 12:50	70.7	↑2.7
9/20 13:00	73.5	↑2.8
9/20 13:10	76.5	↑3.0
9/20 13:20	79.6	↑3.1
9/20 13:30	82.8	↑3.2
9/20 13:40	86.1	↑3.3
9/20 13:50	89.6	↑3.5
9/20 14:00	93.2	↑3.6
9/20 14:10	96.9	↑3.7
9/20 14:20	100.6	↑3.7
9/20 14:30	104.4	↑3.8
9/20 14:40	108.2	↑3.8
9/20 14:50	111.9	↑3.7
9/20 15:00	115.6	↑3.7
9/20 15:10	119.1	↑3.5
9/20 15:20	122.5	↑3.4
9/20 15:30	125.6	↑3.1
9/20 15:40	128.5	↑2.9
9/20 15:50	131.1	↑2.6
9/20 16:00	133.3	↑2.2
9/20 16:10	135.1	↑1.8
9/20 16:20	136.5	↑1.4
9/20 16:30	137.6	↑1.1
9/20 16:40	138.2	↑0.6
9/20 16:50	138.4	↑0.2	満潮
9/20 17:00	138.2	↓-0.2
9/20 17:10	137.6	↓-0.6
9/20 17:20	136.7	↓-0.9
9/20 17:30	135.4	↓-1.3
9/20 17:40	133.9	↓-1.5
9/20 17:50	132.1	↓-1.8
9/20 18:00	130.0	↓-2.1
9/20 18:10	127.7	↓-2.3
9/20 18:20	125.3	↓-2.4
9/20 18:30	122.7	↓-2.6
9/20 18:40	119.9	↓-2.8
9/20 18:50	117.0	↓-2.9
9/20 19:00	114.0	↓-3.0
9/20 19:10	110.8	↓-3.2
9/20 19:20	107.6	↓-3.2
9/20 19:30	104.2	↓-3.4
9/20 19:40	100.7	↓-3.5
9/20 19:50	97.0	↓-3.7
9/20 20:00	93.3	↓-3.7
9/20 20:10	89.5	↓-3.8
9/20 20:20	85.5	↓-4.0
9/20 20:30	81.5	↓-4.0
9/20 20:40	77.5	↓-4.0
9/20 20:50	73.5	↓-4.0
9/20 21:00	69.4	↓-4.1
9/20 21:10	65.5	↓-3.9
9/20 21:20	61.6	↓-3.9
9/20 21:30	57.9	↓-3.7
9/20 21:40	54.4	↓-3.5
9/20 21:50	51.1	↓-3.3
9/20 22:00	48.2	↓-2.9
9/20 22:10	45.5	↓-2.7
9/20 22:20	43.2	↓-2.3
9/20 22:30	41.2	↓-2.0
9/20 22:40	39.7	↓-1.5
9/20 22:50	38.5	↓-1.2
9/20 23:00	37.8	↓-0.7
9/20 23:10	37.4	↓-0.4	干潮
9/20 23:20	37.4	0
9/20 23:30	37.7	↑0.3
9/20 23:40	38.4	↑0.7
9/20 23:50	39.4	↑1.0