20 (木)	02:48	09:07	15:28	21:17
	123cm	25cm	125cm	47cm
大潮 出 04:29 入 18:07 出 04:30 入 18:13 潮干狩り ○ 07:52～10:21

根室（北海道）2023年04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
4/20 00:00	85.7	↑3.6
4/20 00:10	89.2	↑3.5
4/20 00:20	92.8	↑3.6
4/20 00:30	96.2	↑3.4
4/20 00:40	99.5	↑3.3
4/20 00:50	102.7	↑3.2
4/20 01:00	105.8	↑3.1
4/20 01:10	108.6	↑2.8
4/20 01:20	111.2	↑2.6
4/20 01:30	113.7	↑2.5
4/20 01:40	115.8	↑2.1
4/20 01:50	117.8	↑2.0
4/20 02:00	119.4	↑1.6
4/20 02:10	120.7	↑1.3
4/20 02:20	121.8	↑1.1
4/20 02:30	122.5	↑0.7
4/20 02:40	122.9	↑0.4	満潮
4/20 02:50	123.0	↑0.1
4/20 03:00	122.7	↓-0.3
4/20 03:10	122.1	↓-0.6
4/20 03:20	121.2	↓-0.9
4/20 03:30	120.0	↓-1.2
4/20 03:40	118.5	↓-1.5
4/20 03:50	116.6	↓-1.9
4/20 04:00	114.5	↓-2.1
4/20 04:10	112.1	↓-2.4
4/20 04:20	109.4	↓-2.7
4/20 04:30	106.5	↓-2.9
4/20 04:40	103.3	↓-3.2
4/20 04:50	100.0	↓-3.3
4/20 05:00	96.4	↓-3.6
4/20 05:10	92.7	↓-3.7
4/20 05:20	88.9	↓-3.8
4/20 05:30	84.9	↓-4.0
4/20 05:40	80.9	↓-4.0
4/20 05:50	76.8	↓-4.1
4/20 06:00	72.7	↓-4.1
4/20 06:10	68.6	↓-4.1
4/20 06:20	64.6	↓-4.0
4/20 06:30	60.6	↓-4.0
4/20 06:40	56.7	↓-3.9
4/20 06:50	52.9	↓-3.8
4/20 07:00	49.2	↓-3.7
4/20 07:10	45.7	↓-3.5
4/20 07:20	42.4	↓-3.3
4/20 07:30	39.3	↓-3.1
4/20 07:40	36.5	↓-2.8
4/20 07:50	33.9	↓-2.6
4/20 08:00	31.6	↓-2.3
4/20 08:10	29.6	↓-2.0
4/20 08:20	27.9	↓-1.7
4/20 08:30	26.5	↓-1.4
4/20 08:40	25.4	↓-1.1
4/20 08:50	24.7	↓-0.7
4/20 09:00	24.3	↓-0.4	干潮
4/20 09:10	24.3	0
4/20 09:20	24.6	↑0.3
4/20 09:30	25.2	↑0.6
4/20 09:40	26.2	↑1.0
4/20 09:50	27.5	↑1.3
4/20 10:00	29.2	↑1.7
4/20 10:10	31.1	↑1.9
4/20 10:20	33.4	↑2.3
4/20 10:30	35.9	↑2.5
4/20 10:40	38.7	↑2.8
4/20 10:50	41.8	↑3.1
4/20 11:00	45.0	↑3.2
4/20 11:10	48.5	↑3.5
4/20 11:20	52.2	↑3.7
4/20 11:30	56.0	↑3.8
4/20 11:40	59.9	↑3.9
4/20 11:50	63.9	↑4.0
4/20 12:00	68.0	↑4.1
4/20 12:10	72.1	↑4.1
4/20 12:20	76.3	↑4.2	最大潮位差
4/20 12:30	80.4	↑4.1
4/20 12:40	84.5	↑4.1
4/20 12:50	88.5	↑4.0
4/20 13:00	92.5	↑4.0
4/20 13:10	96.3	↑3.8
4/20 13:20	99.9	↑3.6
4/20 13:30	103.4	↑3.5
4/20 13:40	106.6	↑3.2
4/20 13:50	109.7	↑3.1
4/20 14:00	112.5	↑2.8
4/20 14:10	115.0	↑2.5
4/20 14:20	117.3	↑2.3
4/20 14:30	119.2	↑1.9
4/20 14:40	120.9	↑1.7
4/20 14:50	122.3	↑1.4
4/20 15:00	123.3	↑1.0
4/20 15:10	124.0	↑0.7
4/20 15:20	124.4	↑0.4	満潮
4/20 15:30	124.5	↑0.1
4/20 15:40	124.2	↓-0.3
4/20 15:50	123.6	↓-0.6
4/20 16:00	122.7	↓-0.9
4/20 16:10	121.5	↓-1.2
4/20 16:20	120.0	↓-1.5
4/20 16:30	118.2	↓-1.8
4/20 16:40	116.1	↓-2.1
4/20 16:50	113.8	↓-2.3
4/20 17:00	111.3	↓-2.5
4/20 17:10	108.5	↓-2.8
4/20 17:20	105.6	↓-2.9
4/20 17:30	102.5	↓-3.1
4/20 17:40	99.3	↓-3.2
4/20 17:50	96.0	↓-3.3
4/20 18:00	92.6	↓-3.4
4/20 18:10	89.1	↓-3.5
4/20 18:20	85.6	↓-3.5
4/20 18:30	82.1	↓-3.5
4/20 18:40	78.6	↓-3.5
4/20 18:50	75.2	↓-3.4
4/20 19:00	71.8	↓-3.4
4/20 19:10	68.6	↓-3.2
4/20 19:20	65.5	↓-3.1
4/20 19:30	62.6	↓-2.9
4/20 19:40	59.8	↓-2.8
4/20 19:50	57.3	↓-2.5
4/20 20:00	54.9	↓-2.4
4/20 20:10	52.8	↓-2.1
4/20 20:20	51.0	↓-1.8
4/20 20:30	49.4	↓-1.6
4/20 20:40	48.2	↓-1.2
4/20 20:50	47.2	↓-1.0
4/20 21:00	46.5	↓-0.7
4/20 21:10	46.2	↓-0.3	干潮
4/20 21:20	46.1	↓-0.1
4/20 21:30	46.4	↑0.3
4/20 21:40	47.0	↑0.6
4/20 21:50	47.9	↑0.9
4/20 22:00	49.1	↑1.2
4/20 22:10	50.5	↑1.4
4/20 22:20	52.3	↑1.8
4/20 22:30	54.4	↑2.1
4/20 22:40	56.6	↑2.2
4/20 22:50	59.2	↑2.6
4/20 23:00	61.9	↑2.7
4/20 23:10	64.9	↑3.0
4/20 23:20	68.0	↑3.1
4/20 23:30	71.3	↑3.3
4/20 23:40	74.7	↑3.4
4/20 23:50	78.2	↑3.5