21 (水)	01:02	03:01	07:31	16:48
	100cm	99cm	104cm	34cm
長潮 出 04:27 入 18:08 出 10:51 入 01:30

根室（北海道）2021年04月21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
4/21 00:00	98.6	↑0.3
4/21 00:10	98.8	↑0.2
4/21 00:20	98.9	↑0.1
4/21 00:30	99.1	↑0.2
4/21 00:40	99.2	↑0.1
4/21 00:50	99.2	0
4/21 01:00	99.2	0	満潮
4/21 01:10	99.2	0
4/21 01:20	99.2	0
4/21 01:30	99.1	↓-0.1
4/21 01:40	99.1	0
4/21 01:50	99.0	↓-0.1
4/21 02:00	98.9	↓-0.1
4/21 02:10	98.9	0
4/21 02:20	98.8	↓-0.1
4/21 02:30	98.8	0
4/21 02:40	98.7	↓-0.1
4/21 02:50	98.7	0
4/21 03:00	98.7	0	干潮
4/21 03:10	98.7	0
4/21 03:20	98.7	0
4/21 03:30	98.8	↑0.1
4/21 03:40	98.9	↑0.1
4/21 03:50	99.0	↑0.1
4/21 04:00	99.1	↑0.1
4/21 04:10	99.2	↑0.1
4/21 04:20	99.4	↑0.2
4/21 04:30	99.6	↑0.2
4/21 04:40	99.8	↑0.2
4/21 04:50	100.0	↑0.2
4/21 05:00	100.3	↑0.3
4/21 05:10	100.6	↑0.3
4/21 05:20	100.8	↑0.2
4/21 05:30	101.1	↑0.3
4/21 05:40	101.4	↑0.3
4/21 05:50	101.7	↑0.3
4/21 06:00	102.0	↑0.3
4/21 06:10	102.2	↑0.2
4/21 06:20	102.5	↑0.3
4/21 06:30	102.7	↑0.2
4/21 06:40	102.9	↑0.2
4/21 06:50	103.1	↑0.2
4/21 07:00	103.3	↑0.2
4/21 07:10	103.4	↑0.1
4/21 07:20	103.5	↑0.1
4/21 07:30	103.5	0	満潮
4/21 07:40	103.5	0
4/21 07:50	103.4	↓-0.1
4/21 08:00	103.2	↓-0.2
4/21 08:10	103.0	↓-0.2
4/21 08:20	102.7	↓-0.3
4/21 08:30	102.4	↓-0.3
4/21 08:40	101.9	↓-0.5
4/21 08:50	101.4	↓-0.5
4/21 09:00	100.8	↓-0.6
4/21 09:10	100.1	↓-0.7
4/21 09:20	99.4	↓-0.7
4/21 09:30	98.5	↓-0.9
4/21 09:40	97.6	↓-0.9
4/21 09:50	96.6	↓-1.0
4/21 10:00	95.4	↓-1.2
4/21 10:10	94.2	↓-1.2
4/21 10:20	92.9	↓-1.3
4/21 10:30	91.5	↓-1.4
4/21 10:40	90.1	↓-1.4
4/21 10:50	88.5	↓-1.6
4/21 11:00	86.9	↓-1.6
4/21 11:10	85.2	↓-1.7
4/21 11:20	83.5	↓-1.7
4/21 11:30	81.7	↓-1.8
4/21 11:40	79.8	↓-1.9
4/21 11:50	77.9	↓-1.9
4/21 12:00	75.9	↓-2.0
4/21 12:10	73.9	↓-2.0
4/21 12:20	71.8	↓-2.1
4/21 12:30	69.7	↓-2.1
4/21 12:40	67.7	↓-2.0
4/21 12:50	65.6	↓-2.1
4/21 13:00	63.5	↓-2.1
4/21 13:10	61.4	↓-2.1
4/21 13:20	59.3	↓-2.1
4/21 13:30	57.2	↓-2.1
4/21 13:40	55.2	↓-2.0
4/21 13:50	53.3	↓-1.9
4/21 14:00	51.3	↓-2.0
4/21 14:10	49.5	↓-1.8
4/21 14:20	47.7	↓-1.8
4/21 14:30	45.9	↓-1.8
4/21 14:40	44.3	↓-1.6
4/21 14:50	42.7	↓-1.6
4/21 15:00	41.3	↓-1.4
4/21 15:10	40.0	↓-1.3
4/21 15:20	38.7	↓-1.3
4/21 15:30	37.6	↓-1.1
4/21 15:40	36.6	↓-1.0
4/21 15:50	35.7	↓-0.9
4/21 16:00	35.0	↓-0.7
4/21 16:10	34.4	↓-0.6
4/21 16:20	33.9	↓-0.5
4/21 16:30	33.6	↓-0.3
4/21 16:40	33.5	↓-0.1	干潮
4/21 16:50	33.4	↓-0.1
4/21 17:00	33.6	↑0.2
4/21 17:10	33.8	↑0.2
4/21 17:20	34.2	↑0.4
4/21 17:30	34.8	↑0.6
4/21 17:40	35.5	↑0.7
4/21 17:50	36.3	↑0.8
4/21 18:00	37.3	↑1.0
4/21 18:10	38.4	↑1.1
4/21 18:20	39.7	↑1.3
4/21 18:30	41.0	↑1.3
4/21 18:40	42.5	↑1.5
4/21 18:50	44.1	↑1.6
4/21 19:00	45.8	↑1.7
4/21 19:10	47.6	↑1.8
4/21 19:20	49.5	↑1.9
4/21 19:30	51.4	↑1.9
4/21 19:40	53.4	↑2.0
4/21 19:50	55.5	↑2.1
4/21 20:00	57.7	↑2.2
4/21 20:10	59.9	↑2.2
4/21 20:20	62.1	↑2.2
4/21 20:30	64.3	↑2.2
4/21 20:40	66.6	↑2.3	最大潮位差
4/21 20:50	68.8	↑2.2
4/21 21:00	71.1	↑2.3	最大潮位差
4/21 21:10	73.3	↑2.2
4/21 21:20	75.5	↑2.2
4/21 21:30	77.7	↑2.2
4/21 21:40	79.8	↑2.1
4/21 21:50	81.9	↑2.1
4/21 22:00	84.0	↑2.1
4/21 22:10	85.9	↑1.9
4/21 22:20	87.8	↑1.9
4/21 22:30	89.6	↑1.8
4/21 22:40	91.3	↑1.7
4/21 22:50	92.9	↑1.6
4/21 23:00	94.5	↑1.6
4/21 23:10	95.9	↑1.4
4/21 23:20	97.2	↑1.3
4/21 23:30	98.4	↑1.2
4/21 23:40	99.5	↑1.1
4/21 23:50	100.4	↑0.9