20 (土)	02:15	07:53	13:53	20:20
	50cm	25cm	56cm	14cm
中潮 出 04:52 入 18:25 出 14:49 入 03:21

吉岡（北海道）2024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	39.8	↑1.3
4/20 00:10	41.1	↑1.3
4/20 00:20	42.3	↑1.2
4/20 00:30	43.4	↑1.1
4/20 00:40	44.5	↑1.1
4/20 00:50	45.4	↑0.9
4/20 01:00	46.3	↑0.9
4/20 01:10	47.1	↑0.8
4/20 01:20	47.7	↑0.6
4/20 01:30	48.3	↑0.6
4/20 01:40	48.7	↑0.4
4/20 01:50	49.1	↑0.4
4/20 02:00	49.3	↑0.2
4/20 02:10	49.4	↑0.1	満潮
4/20 02:20	49.4	0
4/20 02:30	49.2	↓-0.2
4/20 02:40	49.0	↓-0.2
4/20 02:50	48.7	↓-0.3
4/20 03:00	48.2	↓-0.5
4/20 03:10	47.7	↓-0.5
4/20 03:20	47.0	↓-0.7
4/20 03:30	46.3	↓-0.7
4/20 03:40	45.5	↓-0.8
4/20 03:50	44.6	↓-0.9
4/20 04:00	43.7	↓-0.9
4/20 04:10	42.7	↓-1.0
4/20 04:20	41.6	↓-1.1
4/20 04:30	40.5	↓-1.1
4/20 04:40	39.4	↓-1.1
4/20 04:50	38.2	↓-1.2
4/20 05:00	37.1	↓-1.1
4/20 05:10	35.9	↓-1.2
4/20 05:20	34.8	↓-1.1
4/20 05:30	33.6	↓-1.2
4/20 05:40	32.5	↓-1.1
4/20 05:50	31.4	↓-1.1
4/20 06:00	30.4	↓-1.0
4/20 06:10	29.4	↓-1.0
4/20 06:20	28.5	↓-0.9
4/20 06:30	27.7	↓-0.8
4/20 06:40	26.9	↓-0.8
4/20 06:50	26.2	↓-0.7
4/20 07:00	25.6	↓-0.6
4/20 07:10	25.1	↓-0.5
4/20 07:20	24.7	↓-0.4
4/20 07:30	24.4	↓-0.3
4/20 07:40	24.3	↓-0.1
4/20 07:50	24.2	↓-0.1	干潮
4/20 08:00	24.2	0
4/20 08:10	24.4	↑0.2
4/20 08:20	24.6	↑0.2
4/20 08:30	25.0	↑0.4
4/20 08:40	25.5	↑0.5
4/20 08:50	26.1	↑0.6
4/20 09:00	26.7	↑0.6
4/20 09:10	27.5	↑0.8
4/20 09:20	28.4	↑0.9
4/20 09:30	29.3	↑0.9
4/20 09:40	30.4	↑1.1
4/20 09:50	31.5	↑1.1
4/20 10:00	32.7	↑1.2
4/20 10:10	33.9	↑1.2
4/20 10:20	35.2	↑1.3
4/20 10:30	36.5	↑1.3
4/20 10:40	37.8	↑1.3
4/20 10:50	39.2	↑1.4
4/20 11:00	40.5	↑1.3
4/20 11:10	41.9	↑1.4
4/20 11:20	43.2	↑1.3
4/20 11:30	44.5	↑1.3
4/20 11:40	45.8	↑1.3
4/20 11:50	47.1	↑1.3
4/20 12:00	48.3	↑1.2
4/20 12:10	49.4	↑1.1
4/20 12:20	50.4	↑1.0
4/20 12:30	51.4	↑1.0
4/20 12:40	52.3	↑0.9
4/20 12:50	53.1	↑0.8
4/20 13:00	53.7	↑0.6
4/20 13:10	54.3	↑0.6
4/20 13:20	54.8	↑0.5
4/20 13:30	55.1	↑0.3
4/20 13:40	55.3	↑0.2
4/20 13:50	55.4	↑0.1	満潮
4/20 14:00	55.4	0
4/20 14:10	55.2	↓-0.2
4/20 14:20	54.9	↓-0.3
4/20 14:30	54.5	↓-0.4
4/20 14:40	53.9	↓-0.6
4/20 14:50	53.2	↓-0.7
4/20 15:00	52.5	↓-0.7
4/20 15:10	51.5	↓-1.0
4/20 15:20	50.5	↓-1.0
4/20 15:30	49.4	↓-1.1
4/20 15:40	48.2	↓-1.2
4/20 15:50	46.8	↓-1.4
4/20 16:00	45.4	↓-1.4
4/20 16:10	44.0	↓-1.4
4/20 16:20	42.4	↓-1.6
4/20 16:30	40.9	↓-1.5
4/20 16:40	39.2	↓-1.7	最大潮位差
4/20 16:50	37.6	↓-1.6
4/20 17:00	35.9	↓-1.7	最大潮位差
4/20 17:10	34.2	↓-1.7	最大潮位差
4/20 17:20	32.5	↓-1.7	最大潮位差
4/20 17:30	30.8	↓-1.7	最大潮位差
4/20 17:40	29.2	↓-1.6
4/20 17:50	27.5	↓-1.7	最大潮位差
4/20 18:00	26.0	↓-1.5
4/20 18:10	24.5	↓-1.5
4/20 18:20	23.0	↓-1.5
4/20 18:30	21.6	↓-1.4
4/20 18:40	20.3	↓-1.3
4/20 18:50	19.2	↓-1.1
4/20 19:00	18.1	↓-1.1
4/20 19:10	17.1	↓-1.0
4/20 19:20	16.2	↓-0.9
4/20 19:30	15.5	↓-0.7
4/20 19:40	14.9	↓-0.6
4/20 19:50	14.4	↓-0.5
4/20 20:00	14.1	↓-0.3
4/20 20:10	13.9	↓-0.2	干潮
4/20 20:20	13.8	↓-0.1	干潮
4/20 20:30	13.9	↑0.1
4/20 20:40	14.1	↑0.2
4/20 20:50	14.5	↑0.4
4/20 21:00	15.0	↑0.5
4/20 21:10	15.6	↑0.6
4/20 21:20	16.3	↑0.7
4/20 21:30	17.2	↑0.9
4/20 21:40	18.2	↑1.0
4/20 21:50	19.3	↑1.1
4/20 22:00	20.5	↑1.2
4/20 22:10	21.8	↑1.3
4/20 22:20	23.2	↑1.4
4/20 22:30	24.6	↑1.4
4/20 22:40	26.1	↑1.5
4/20 22:50	27.7	↑1.6
4/20 23:00	29.3	↑1.6
4/20 23:10	31.0	↑1.7	最大潮位差
4/20 23:20	32.6	↑1.6
4/20 23:30	34.3	↑1.7	最大潮位差
4/20 23:40	35.9	↑1.6
4/20 23:50	37.6	↑1.7	最大潮位差