20 (日)	11:34	05:25	23:09	16:59
	103cm	64cm	127cm	72cm
若潮 出 03:57 入 19:15 出 13:46 入 00:41

苫小牧（北海道）2021年06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
6/20 00:00	114.3	↓-1.4
6/20 00:10	112.8	↓-1.5
6/20 00:20	111.2	↓-1.6
6/20 00:30	109.4	↓-1.8
6/20 00:40	107.6	↓-1.8
6/20 00:50	105.7	↓-1.9
6/20 01:00	103.7	↓-2.0
6/20 01:10	101.6	↓-2.1
6/20 01:20	99.5	↓-2.1
6/20 01:30	97.3	↓-2.2
6/20 01:40	95.1	↓-2.2
6/20 01:50	92.9	↓-2.2
6/20 02:00	90.7	↓-2.2
6/20 02:10	88.5	↓-2.2
6/20 02:20	86.3	↓-2.2
6/20 02:30	84.2	↓-2.1
6/20 02:40	82.1	↓-2.1
6/20 02:50	80.1	↓-2.0
6/20 03:00	78.1	↓-2.0
6/20 03:10	76.3	↓-1.8
6/20 03:20	74.5	↓-1.8
6/20 03:30	72.8	↓-1.7
6/20 03:40	71.2	↓-1.6
6/20 03:50	69.8	↓-1.4
6/20 04:00	68.5	↓-1.3
6/20 04:10	67.3	↓-1.2
6/20 04:20	66.2	↓-1.1
6/20 04:30	65.3	↓-0.9
6/20 04:40	64.6	↓-0.7
6/20 04:50	64.0	↓-0.6
6/20 05:00	63.5	↓-0.5
6/20 05:10	63.2	↓-0.3
6/20 05:20	63.1	↓-0.1	干潮
6/20 05:30	63.1	0
6/20 05:40	63.3	↑0.2
6/20 05:50	63.6	↑0.3
6/20 06:00	64.1	↑0.5
6/20 06:10	64.7	↑0.6
6/20 06:20	65.5	↑0.8
6/20 06:30	66.4	↑0.9
6/20 06:40	67.4	↑1.0
6/20 06:50	68.6	↑1.2
6/20 07:00	69.8	↑1.2
6/20 07:10	71.1	↑1.3
6/20 07:20	72.6	↑1.5
6/20 07:30	74.1	↑1.5
6/20 07:40	75.6	↑1.5
6/20 07:50	77.3	↑1.7
6/20 08:00	78.9	↑1.6
6/20 08:10	80.6	↑1.7
6/20 08:20	82.3	↑1.7
6/20 08:30	83.9	↑1.6
6/20 08:40	85.6	↑1.7
6/20 08:50	87.3	↑1.7
6/20 09:00	88.9	↑1.6
6/20 09:10	90.4	↑1.5
6/20 09:20	91.9	↑1.5
6/20 09:30	93.4	↑1.5
6/20 09:40	94.7	↑1.3
6/20 09:50	96.0	↑1.3
6/20 10:00	97.2	↑1.2
6/20 10:10	98.3	↑1.1
6/20 10:20	99.3	↑1.0
6/20 10:30	100.1	↑0.8
6/20 10:40	100.9	↑0.8
6/20 10:50	101.5	↑0.6
6/20 11:00	102.0	↑0.5
6/20 11:10	102.3	↑0.3
6/20 11:20	102.6	↑0.3
6/20 11:30	102.7	↑0.1	満潮
6/20 11:40	102.7	0
6/20 11:50	102.5	↓-0.2
6/20 12:00	102.2	↓-0.3
6/20 12:10	101.8	↓-0.4
6/20 12:20	101.3	↓-0.5
6/20 12:30	100.7	↓-0.6
6/20 12:40	99.9	↓-0.8
6/20 12:50	99.0	↓-0.9
6/20 13:00	98.1	↓-0.9
6/20 13:10	97.0	↓-1.1
6/20 13:20	95.9	↓-1.1
6/20 13:30	94.6	↓-1.3
6/20 13:40	93.3	↓-1.3
6/20 13:50	92.0	↓-1.3
6/20 14:00	90.6	↓-1.4
6/20 14:10	89.2	↓-1.4
6/20 14:20	87.7	↓-1.5
6/20 14:30	86.2	↓-1.5
6/20 14:40	84.8	↓-1.4
6/20 14:50	83.3	↓-1.5
6/20 15:00	81.9	↓-1.4
6/20 15:10	80.5	↓-1.4
6/20 15:20	79.2	↓-1.3
6/20 15:30	77.9	↓-1.3
6/20 15:40	76.7	↓-1.2
6/20 15:50	75.6	↓-1.1
6/20 16:00	74.7	↓-0.9
6/20 16:10	73.8	↓-0.9
6/20 16:20	73.1	↓-0.7
6/20 16:30	72.6	↓-0.5
6/20 16:40	72.2	↓-0.4
6/20 16:50	72.0	↓-0.2	干潮
6/20 17:00	71.9	↓-0.1
6/20 17:10	72.0	↑0.1
6/20 17:20	72.4	↑0.4
6/20 17:30	72.9	↑0.5
6/20 17:40	73.6	↑0.7
6/20 17:50	74.4	↑0.8
6/20 18:00	75.5	↑1.1
6/20 18:10	76.7	↑1.2
6/20 18:20	78.0	↑1.3
6/20 18:30	79.6	↑1.6
6/20 18:40	81.2	↑1.6
6/20 18:50	83.0	↑1.8
6/20 19:00	84.9	↑1.9
6/20 19:10	87.0	↑2.1
6/20 19:20	89.1	↑2.1
6/20 19:30	91.2	↑2.1
6/20 19:40	93.5	↑2.3
6/20 19:50	95.7	↑2.2
6/20 20:00	98.0	↑2.3
6/20 20:10	100.4	↑2.4	最大潮位差
6/20 20:20	102.7	↑2.3
6/20 20:30	105.0	↑2.3
6/20 20:40	107.2	↑2.2
6/20 20:50	109.4	↑2.2
6/20 21:00	111.5	↑2.1
6/20 21:10	113.6	↑2.1
6/20 21:20	115.6	↑2.0
6/20 21:30	117.4	↑1.8
6/20 21:40	119.1	↑1.7
6/20 21:50	120.7	↑1.6
6/20 22:00	122.1	↑1.4
6/20 22:10	123.4	↑1.3
6/20 22:20	124.5	↑1.1
6/20 22:30	125.3	↑0.8
6/20 22:40	126.0	↑0.7
6/20 22:50	126.5	↑0.5
6/20 23:00	126.8	↑0.3	満潮
6/20 23:10	126.9	↑0.1
6/20 23:20	126.8	↓-0.1
6/20 23:30	126.4	↓-0.4
6/20 23:40	125.8	↓-0.6
6/20 23:50	125.1	↓-0.7