20 (日)	04:46	10:52	16:52	23:08
	140cm	45cm	136cm	34cm
中潮 出 05:03 入 17:20 出 08:05 入 19:07

根室（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	52.5	↑2.7
9/20 00:10	55.5	↑3.0
9/20 00:20	58.7	↑3.2
9/20 00:30	62.1	↑3.4
9/20 00:40	65.7	↑3.6
9/20 00:50	69.5	↑3.8
9/20 01:00	73.5	↑4.0
9/20 01:10	77.6	↑4.1
9/20 01:20	81.7	↑4.1
9/20 01:30	85.9	↑4.2
9/20 01:40	90.1	↑4.2
9/20 01:50	94.3	↑4.2
9/20 02:00	98.5	↑4.2
9/20 02:10	102.7	↑4.2
9/20 02:20	106.7	↑4.0
9/20 02:30	110.6	↑3.9
9/20 02:40	114.4	↑3.8
9/20 02:50	117.9	↑3.5
9/20 03:00	121.3	↑3.4
9/20 03:10	124.5	↑3.2
9/20 03:20	127.3	↑2.8
9/20 03:30	130.0	↑2.7
9/20 03:40	132.3	↑2.3
9/20 03:50	134.3	↑2.0
9/20 04:00	136.1	↑1.8
9/20 04:10	137.4	↑1.3
9/20 04:20	138.5	↑1.1
9/20 04:30	139.2	↑0.7
9/20 04:40	139.5	↑0.3	満潮
9/20 04:50	139.5	0
9/20 05:00	139.1	↓-0.4
9/20 05:10	138.4	↓-0.7
9/20 05:20	137.3	↓-1.1
9/20 05:30	136.0	↓-1.3
9/20 05:40	134.2	↓-1.8
9/20 05:50	132.2	↓-2.0
9/20 06:00	129.9	↓-2.3
9/20 06:10	127.2	↓-2.7
9/20 06:20	124.4	↓-2.8
9/20 06:30	121.3	↓-3.1
9/20 06:40	117.9	↓-3.4
9/20 06:50	114.4	↓-3.5
9/20 07:00	110.7	↓-3.7
9/20 07:10	106.9	↓-3.8
9/20 07:20	103.0	↓-3.9
9/20 07:30	99.0	↓-4.0
9/20 07:40	94.9	↓-4.1
9/20 07:50	90.9	↓-4.0
9/20 08:00	86.8	↓-4.1
9/20 08:10	82.8	↓-4.0
9/20 08:20	78.8	↓-4.0
9/20 08:30	74.9	↓-3.9
9/20 08:40	71.2	↓-3.7
9/20 08:50	67.6	↓-3.6
9/20 09:00	64.2	↓-3.4
9/20 09:10	61.0	↓-3.2
9/20 09:20	58.1	↓-2.9
9/20 09:30	55.3	↓-2.8
9/20 09:40	52.9	↓-2.4
9/20 09:50	50.7	↓-2.2
9/20 10:00	48.9	↓-1.8
9/20 10:10	47.3	↓-1.6
9/20 10:20	46.1	↓-1.2
9/20 10:30	45.2	↓-0.9
9/20 10:40	44.7	↓-0.5
9/20 10:50	44.5	↓-0.2	干潮
9/20 11:00	44.7	↑0.2
9/20 11:10	45.2	↑0.5
9/20 11:20	46.0	↑0.8
9/20 11:30	47.2	↑1.2
9/20 11:40	48.7	↑1.5
9/20 11:50	50.5	↑1.8
9/20 12:00	52.6	↑2.1
9/20 12:10	55.0	↑2.4
9/20 12:20	57.7	↑2.7
9/20 12:30	60.6	↑2.9
9/20 12:40	63.7	↑3.1
9/20 12:50	67.0	↑3.3
9/20 13:00	70.5	↑3.5
9/20 13:10	74.2	↑3.7
9/20 13:20	77.9	↑3.7
9/20 13:30	81.8	↑3.9
9/20 13:40	85.7	↑3.9
9/20 13:50	89.7	↑4.0
9/20 14:00	93.7	↑4.0
9/20 14:10	97.6	↑3.9
9/20 14:20	101.5	↑3.9
9/20 14:30	105.3	↑3.8
9/20 14:40	109.0	↑3.7
9/20 14:50	112.5	↑3.5
9/20 15:00	115.9	↑3.4
9/20 15:10	119.0	↑3.1
9/20 15:20	122.0	↑3.0
9/20 15:30	124.7	↑2.7
9/20 15:40	127.2	↑2.5
9/20 15:50	129.4	↑2.2
9/20 16:00	131.2	↑1.8
9/20 16:10	132.8	↑1.6
9/20 16:20	134.0	↑1.2
9/20 16:30	134.9	↑0.9
9/20 16:40	135.5	↑0.6
9/20 16:50	135.7	↑0.2	満潮
9/20 17:00	135.6	↓-0.1
9/20 17:10	135.1	↓-0.5
9/20 17:20	134.2	↓-0.9
9/20 17:30	133.0	↓-1.2
9/20 17:40	131.5	↓-1.5
9/20 17:50	129.7	↓-1.8
9/20 18:00	127.5	↓-2.2
9/20 18:10	125.0	↓-2.5
9/20 18:20	122.3	↓-2.7
9/20 18:30	119.2	↓-3.1
9/20 18:40	116.0	↓-3.2
9/20 18:50	112.5	↓-3.5
9/20 19:00	108.8	↓-3.7
9/20 19:10	105.0	↓-3.8
9/20 19:20	101.0	↓-4.0
9/20 19:30	96.9	↓-4.1
9/20 19:40	92.7	↓-4.2
9/20 19:50	88.4	↓-4.3	最大潮位差
9/20 20:00	84.1	↓-4.3	最大潮位差
9/20 20:10	79.8	↓-4.3	最大潮位差
9/20 20:20	75.6	↓-4.2
9/20 20:30	71.4	↓-4.2
9/20 20:40	67.3	↓-4.1
9/20 20:50	63.3	↓-4.0
9/20 21:00	59.5	↓-3.8
9/20 21:10	55.8	↓-3.7
9/20 21:20	52.4	↓-3.4
9/20 21:30	49.1	↓-3.3
9/20 21:40	46.1	↓-3.0
9/20 21:50	43.4	↓-2.7
9/20 22:00	41.0	↓-2.4
9/20 22:10	38.8	↓-2.2
9/20 22:20	37.0	↓-1.8
9/20 22:30	35.6	↓-1.4
9/20 22:40	34.4	↓-1.2
9/20 22:50	33.6	↓-0.8
9/20 23:00	33.2	↓-0.4	干潮
9/20 23:10	33.1	↓-0.1
9/20 23:20	33.4	↑0.3
9/20 23:30	34.0	↑0.6
9/20 23:40	35.0	↑1.0
9/20 23:50	36.3	↑1.3