20 (日)	05:40	11:31	17:25	23:50
	130cm	53cm	133cm	32cm
中潮 出 06:24 入 17:13 出 21:01 入 08:15

苫小牧（北海道）2022年02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
2/20 00:00	22.5	↑1.2
2/20 00:10	24.0	↑1.5
2/20 00:20	25.8	↑1.8
2/20 00:30	27.8	↑2.0
2/20 00:40	30.1	↑2.3
2/20 00:50	32.7	↑2.6
2/20 01:00	35.5	↑2.8
2/20 01:10	38.5	↑3.0
2/20 01:20	41.7	↑3.2
2/20 01:30	45.2	↑3.5
2/20 01:40	48.9	↑3.7
2/20 01:50	52.8	↑3.9
2/20 02:00	56.8	↑4.0
2/20 02:10	61.1	↑4.3
2/20 02:20	65.5	↑4.4
2/20 02:30	70.1	↑4.6
2/20 02:40	74.7	↑4.6
2/20 02:50	79.4	↑4.7
2/20 03:00	84.2	↑4.8	最大潮位差
2/20 03:10	88.9	↑4.7
2/20 03:20	93.6	↑4.7
2/20 03:30	98.1	↑4.5
2/20 03:40	102.5	↑4.4
2/20 03:50	106.6	↑4.1
2/20 04:00	110.5	↑3.9
2/20 04:10	114.1	↑3.6
2/20 04:20	117.4	↑3.3
2/20 04:30	120.3	↑2.9
2/20 04:40	122.8	↑2.5
2/20 04:50	124.9	↑2.1
2/20 05:00	126.5	↑1.6
2/20 05:10	127.8	↑1.3
2/20 05:20	128.7	↑0.9
2/20 05:30	129.2	↑0.5	満潮
2/20 05:40	129.4	↑0.2	満潮
2/20 05:50	129.2	↓-0.2
2/20 06:00	128.7	↓-0.5
2/20 06:10	127.9	↓-0.8
2/20 06:20	126.8	↓-1.1
2/20 06:30	125.5	↓-1.3
2/20 06:40	124.0	↓-1.5
2/20 06:50	122.3	↓-1.7
2/20 07:00	120.4	↓-1.9
2/20 07:10	118.3	↓-2.1
2/20 07:20	116.1	↓-2.2
2/20 07:30	113.6	↓-2.5
2/20 07:40	111.1	↓-2.5
2/20 07:50	108.3	↓-2.8
2/20 08:00	105.5	↓-2.8
2/20 08:10	102.4	↓-3.1
2/20 08:20	99.3	↓-3.1
2/20 08:30	96.0	↓-3.3
2/20 08:40	92.7	↓-3.3
2/20 08:50	89.2	↓-3.5
2/20 09:00	85.7	↓-3.5
2/20 09:10	82.2	↓-3.5
2/20 09:20	78.7	↓-3.5
2/20 09:30	75.3	↓-3.4
2/20 09:40	72.0	↓-3.3
2/20 09:50	68.8	↓-3.2
2/20 10:00	65.8	↓-3.0
2/20 10:10	63.1	↓-2.7
2/20 10:20	60.6	↓-2.5
2/20 10:30	58.4	↓-2.2
2/20 10:40	56.5	↓-1.9
2/20 10:50	54.9	↓-1.6
2/20 11:00	53.7	↓-1.2
2/20 11:10	52.9	↓-0.8
2/20 11:20	52.4	↓-0.5
2/20 11:30	52.2	↓-0.2	干潮
2/20 11:40	52.4	↑0.2
2/20 11:50	52.8	↑0.4
2/20 12:00	53.6	↑0.8
2/20 12:10	54.6	↑1.0
2/20 12:20	55.9	↑1.3
2/20 12:30	57.3	↑1.4
2/20 12:40	59.0	↑1.7
2/20 12:50	60.9	↑1.9
2/20 13:00	63.0	↑2.1
2/20 13:10	65.2	↑2.2
2/20 13:20	67.5	↑2.3
2/20 13:30	70.1	↑2.6
2/20 13:40	72.7	↑2.6
2/20 13:50	75.5	↑2.8
2/20 14:00	78.5	↑3.0
2/20 14:10	81.5	↑3.0
2/20 14:20	84.7	↑3.2
2/20 14:30	88.1	↑3.4
2/20 14:40	91.5	↑3.4
2/20 14:50	95.0	↑3.5
2/20 15:00	98.5	↑3.5
2/20 15:10	102.0	↑3.5
2/20 15:20	105.6	↑3.6
2/20 15:30	109.1	↑3.5
2/20 15:40	112.4	↑3.3
2/20 15:50	115.7	↑3.3
2/20 16:00	118.7	↑3.0
2/20 16:10	121.5	↑2.8
2/20 16:20	124.1	↑2.6
2/20 16:30	126.3	↑2.2
2/20 16:40	128.2	↑1.9
2/20 16:50	129.7	↑1.5
2/20 17:00	130.9	↑1.2
2/20 17:10	131.7	↑0.8
2/20 17:20	132.0	↑0.3	満潮
2/20 17:30	132.0	0
2/20 17:40	131.6	↓-0.4
2/20 17:50	130.9	↓-0.7
2/20 18:00	129.8	↓-1.1
2/20 18:10	128.4	↓-1.4
2/20 18:20	126.7	↓-1.7
2/20 18:30	124.7	↓-2.0
2/20 18:40	122.6	↓-2.1
2/20 18:50	120.2	↓-2.4
2/20 19:00	117.6	↓-2.6
2/20 19:10	114.9	↓-2.7
2/20 19:20	112.0	↓-2.9
2/20 19:30	109.0	↓-3.0
2/20 19:40	105.8	↓-3.2
2/20 19:50	102.5	↓-3.3
2/20 20:00	99.1	↓-3.4
2/20 20:10	95.6	↓-3.5
2/20 20:20	92.0	↓-3.6
2/20 20:30	88.3	↓-3.7
2/20 20:40	84.5	↓-3.8
2/20 20:50	80.6	↓-3.9
2/20 21:00	76.6	↓-4.0
2/20 21:10	72.7	↓-3.9
2/20 21:20	68.7	↓-4.0
2/20 21:30	64.7	↓-4.0
2/20 21:40	60.8	↓-3.9
2/20 21:50	57.0	↓-3.8
2/20 22:00	53.3	↓-3.7
2/20 22:10	49.9	↓-3.4
2/20 22:20	46.6	↓-3.3
2/20 22:30	43.6	↓-3.0
2/20 22:40	40.9	↓-2.7
2/20 22:50	38.5	↓-2.4
2/20 23:00	36.5	↓-2.0
2/20 23:10	34.8	↓-1.7
2/20 23:20	33.5	↓-1.3
2/20 23:30	32.6	↓-0.9
2/20 23:40	32.1	↓-0.5	干潮
2/20 23:50	31.9	↓-0.2	干潮