20 (日)	04:48	10:53	16:48	23:16
	144cm	47cm	145cm	29cm
中潮 出 05:19 入 17:36 出 08:20 入 19:25

苫小牧（北海道）2020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	47.5	↑2.3
9/20 00:10	50.1	↑2.6
9/20 00:20	53.0	↑2.9
9/20 00:30	56.0	↑3.0
9/20 00:40	59.3	↑3.3
9/20 00:50	62.8	↑3.5
9/20 01:00	66.6	↑3.8
9/20 01:10	70.5	↑3.9
9/20 01:20	74.7	↑4.2
9/20 01:30	79.0	↑4.3
9/20 01:40	83.5	↑4.5
9/20 01:50	88.1	↑4.6
9/20 02:00	92.8	↑4.7
9/20 02:10	97.5	↑4.7
9/20 02:20	102.3	↑4.8	最大潮位差
9/20 02:30	107.0	↑4.7
9/20 02:40	111.6	↑4.6
9/20 02:50	116.0	↑4.4
9/20 03:00	120.2	↑4.2
9/20 03:10	124.2	↑4.0
9/20 03:20	127.8	↑3.6
9/20 03:30	131.1	↑3.3
9/20 03:40	134.0	↑2.9
9/20 03:50	136.6	↑2.6
9/20 04:00	138.7	↑2.1
9/20 04:10	140.4	↑1.7
9/20 04:20	141.7	↑1.3
9/20 04:30	142.5	↑0.8
9/20 04:40	143.0	↑0.5	満潮
9/20 04:50	143.1	↑0.1
9/20 05:00	142.8	↓-0.3
9/20 05:10	142.2	↓-0.6
9/20 05:20	141.3	↓-0.9
9/20 05:30	140.0	↓-1.3
9/20 05:40	138.6	↓-1.4
9/20 05:50	136.8	↓-1.8
9/20 06:00	134.9	↓-1.9
9/20 06:10	132.7	↓-2.2
9/20 06:20	130.3	↓-2.4
9/20 06:30	127.6	↓-2.7
9/20 06:40	124.8	↓-2.8
9/20 06:50	121.8	↓-3.0
9/20 07:00	118.6	↓-3.2
9/20 07:10	115.2	↓-3.4
9/20 07:20	111.6	↓-3.6
9/20 07:30	107.8	↓-3.8
9/20 07:40	103.9	↓-3.9
9/20 07:50	99.8	↓-4.1
9/20 08:00	95.6	↓-4.2
9/20 08:10	91.4	↓-4.2
9/20 08:20	87.1	↓-4.3
9/20 08:30	82.8	↓-4.3
9/20 08:40	78.6	↓-4.2
9/20 08:50	74.4	↓-4.2
9/20 09:00	70.4	↓-4.0
9/20 09:10	66.6	↓-3.8
9/20 09:20	63.0	↓-3.6
9/20 09:30	59.8	↓-3.2
9/20 09:40	56.8	↓-3.0
9/20 09:50	54.2	↓-2.6
9/20 10:00	52.0	↓-2.2
9/20 10:10	50.2	↓-1.8
9/20 10:20	48.7	↓-1.5
9/20 10:30	47.7	↓-1.0
9/20 10:40	47.1	↓-0.6
9/20 10:50	46.8	↓-0.3	干潮
9/20 11:00	46.9	↑0.1
9/20 11:10	47.4	↑0.5
9/20 11:20	48.2	↑0.8
9/20 11:30	49.3	↑1.1
9/20 11:40	50.7	↑1.4
9/20 11:50	52.4	↑1.7
9/20 12:00	54.3	↑1.9
9/20 12:10	56.5	↑2.2
9/20 12:20	58.9	↑2.4
9/20 12:30	61.5	↑2.6
9/20 12:40	64.3	↑2.8
9/20 12:50	67.4	↑3.1
9/20 13:00	70.6	↑3.2
9/20 13:10	74.1	↑3.5
9/20 13:20	77.7	↑3.6
9/20 13:30	81.5	↑3.8
9/20 13:40	85.5	↑4.0
9/20 13:50	89.7	↑4.2
9/20 14:00	94.0	↑4.3
9/20 14:10	98.3	↑4.3
9/20 14:20	102.7	↑4.4
9/20 14:30	107.2	↑4.5
9/20 14:40	111.5	↑4.3
9/20 14:50	115.8	↑4.3
9/20 15:00	120.0	↑4.2
9/20 15:10	124.0	↑4.0
9/20 15:20	127.7	↑3.7
9/20 15:30	131.1	↑3.4
9/20 15:40	134.2	↑3.1
9/20 15:50	136.9	↑2.7
9/20 16:00	139.2	↑2.3
9/20 16:10	141.1	↑1.9
9/20 16:20	142.6	↑1.5
9/20 16:30	143.6	↑1.0
9/20 16:40	144.1	↑0.5	満潮
9/20 16:50	144.2	↑0.1
9/20 17:00	143.9	↓-0.3
9/20 17:10	143.2	↓-0.7
9/20 17:20	142.1	↓-1.1
9/20 17:30	140.6	↓-1.5
9/20 17:40	138.9	↓-1.7
9/20 17:50	136.8	↓-2.1
9/20 18:00	134.5	↓-2.3
9/20 18:10	131.9	↓-2.6
9/20 18:20	129.2	↓-2.7
9/20 18:30	126.2	↓-3.0
9/20 18:40	123.0	↓-3.2
9/20 18:50	119.6	↓-3.4
9/20 19:00	116.0	↓-3.6
9/20 19:10	112.2	↓-3.8
9/20 19:20	108.3	↓-3.9
9/20 19:30	104.3	↓-4.0
9/20 19:40	100.0	↓-4.3
9/20 19:50	95.6	↓-4.4
9/20 20:00	91.1	↓-4.5
9/20 20:10	86.5	↓-4.6
9/20 20:20	81.8	↓-4.7
9/20 20:30	77.1	↓-4.7
9/20 20:40	72.4	↓-4.7
9/20 20:50	67.7	↓-4.7
9/20 21:00	63.0	↓-4.7
9/20 21:10	58.5	↓-4.5
9/20 21:20	54.2	↓-4.3
9/20 21:30	50.1	↓-4.1
9/20 21:40	46.3	↓-3.8
9/20 21:50	42.7	↓-3.6
9/20 22:00	39.5	↓-3.2
9/20 22:10	36.7	↓-2.8
9/20 22:20	34.3	↓-2.4
9/20 22:30	32.3	↓-2.0
9/20 22:40	30.6	↓-1.7
9/20 22:50	29.4	↓-1.2
9/20 23:00	28.7	↓-0.7
9/20 23:10	28.3	↓-0.4	干潮
9/20 23:20	28.3	0
9/20 23:30	28.6	↑0.3
9/20 23:40	29.3	↑0.7
9/20 23:50	30.3	↑1.0