23 (金)	01:48	05:14	11:55	19:19
	58cm	54cm	83cm	30cm
中潮 出 04:25 入 18:15 出 13:15 入 02:43

コイセボイ（北海道）2021年04月23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
4/23 00:00	54.2	↑0.8
4/23 00:10	54.9	↑0.7
4/23 00:20	55.5	↑0.6
4/23 00:30	56.0	↑0.5
4/23 00:40	56.5	↑0.5
4/23 00:50	56.9	↑0.4
4/23 01:00	57.3	↑0.4
4/23 01:10	57.5	↑0.2
4/23 01:20	57.7	↑0.2
4/23 01:30	57.8	↑0.1
4/23 01:40	57.9	↑0.1	満潮
4/23 01:50	57.9	0
4/23 02:00	57.9	0
4/23 02:10	57.8	↓-0.1
4/23 02:20	57.6	↓-0.2
4/23 02:30	57.5	↓-0.1
4/23 02:40	57.2	↓-0.3
4/23 02:50	57.0	↓-0.2
4/23 03:00	56.7	↓-0.3
4/23 03:10	56.4	↓-0.3
4/23 03:20	56.1	↓-0.3
4/23 03:30	55.8	↓-0.3
4/23 03:40	55.5	↓-0.3
4/23 03:50	55.1	↓-0.4
4/23 04:00	54.8	↓-0.3
4/23 04:10	54.6	↓-0.2
4/23 04:20	54.3	↓-0.3
4/23 04:30	54.1	↓-0.2
4/23 04:40	53.9	↓-0.2
4/23 04:50	53.8	↓-0.1
4/23 05:00	53.7	↓-0.1
4/23 05:10	53.6	↓-0.1	干潮
4/23 05:20	53.6	0
4/23 05:30	53.7	↑0.1
4/23 05:40	53.8	↑0.1
4/23 05:50	54.0	↑0.2
4/23 06:00	54.3	↑0.3
4/23 06:10	54.7	↑0.4
4/23 06:20	55.1	↑0.4
4/23 06:30	55.5	↑0.4
4/23 06:40	56.1	↑0.6
4/23 06:50	56.7	↑0.6
4/23 07:00	57.4	↑0.7
4/23 07:10	58.1	↑0.7
4/23 07:20	59.0	↑0.9
4/23 07:30	59.8	↑0.8
4/23 07:40	60.8	↑1.0
4/23 07:50	61.7	↑0.9
4/23 08:00	62.8	↑1.1
4/23 08:10	63.8	↑1.0
4/23 08:20	64.9	↑1.1
4/23 08:30	66.0	↑1.1
4/23 08:40	67.2	↑1.2
4/23 08:50	68.3	↑1.1
4/23 09:00	69.5	↑1.2
4/23 09:10	70.7	↑1.2
4/23 09:20	71.8	↑1.1
4/23 09:30	73.0	↑1.2
4/23 09:40	74.1	↑1.1
4/23 09:50	75.1	↑1.0
4/23 10:00	76.2	↑1.1
4/23 10:10	77.1	↑0.9
4/23 10:20	78.1	↑1.0
4/23 10:30	78.9	↑0.8
4/23 10:40	79.7	↑0.8
4/23 10:50	80.4	↑0.7
4/23 11:00	81.0	↑0.6
4/23 11:10	81.5	↑0.5
4/23 11:20	81.9	↑0.4
4/23 11:30	82.3	↑0.4
4/23 11:40	82.5	↑0.2
4/23 11:50	82.6	↑0.1	満潮
4/23 12:00	82.6	0
4/23 12:10	82.4	↓-0.2
4/23 12:20	82.2	↓-0.2
4/23 12:30	81.8	↓-0.4
4/23 12:40	81.3	↓-0.5
4/23 12:50	80.7	↓-0.6
4/23 13:00	79.9	↓-0.8
4/23 13:10	79.1	↓-0.8
4/23 13:20	78.1	↓-1.0
4/23 13:30	77.0	↓-1.1
4/23 13:40	75.9	↓-1.1
4/23 13:50	74.6	↓-1.3
4/23 14:00	73.2	↓-1.4
4/23 14:10	71.7	↓-1.5
4/23 14:20	70.2	↓-1.5
4/23 14:30	68.5	↓-1.7
4/23 14:40	66.8	↓-1.7
4/23 14:50	65.1	↓-1.7
4/23 15:00	63.3	↓-1.8
4/23 15:10	61.4	↓-1.9	最大潮位差
4/23 15:20	59.5	↓-1.9	最大潮位差
4/23 15:30	57.6	↓-1.9	最大潮位差
4/23 15:40	55.7	↓-1.9	最大潮位差
4/23 15:50	53.8	↓-1.9	最大潮位差
4/23 16:00	51.9	↓-1.9	最大潮位差
4/23 16:10	50.0	↓-1.9	最大潮位差
4/23 16:20	48.2	↓-1.8
4/23 16:30	46.4	↓-1.8
4/23 16:40	44.6	↓-1.8
4/23 16:50	42.9	↓-1.7
4/23 17:00	41.3	↓-1.6
4/23 17:10	39.7	↓-1.6
4/23 17:20	38.2	↓-1.5
4/23 17:30	36.8	↓-1.4
4/23 17:40	35.5	↓-1.3
4/23 17:50	34.4	↓-1.1
4/23 18:00	33.3	↓-1.1
4/23 18:10	32.4	↓-0.9
4/23 18:20	31.5	↓-0.9
4/23 18:30	30.8	↓-0.7
4/23 18:40	30.3	↓-0.5
4/23 18:50	29.8	↓-0.5
4/23 19:00	29.5	↓-0.3
4/23 19:10	29.4	↓-0.1	干潮
4/23 19:20	29.3	↓-0.1
4/23 19:30	29.4	↑0.1
4/23 19:40	29.6	↑0.2
4/23 19:50	30.0	↑0.4
4/23 20:00	30.4	↑0.4
4/23 20:10	31.0	↑0.6
4/23 20:20	31.7	↑0.7
4/23 20:30	32.5	↑0.8
4/23 20:40	33.4	↑0.9
4/23 20:50	34.4	↑1.0
4/23 21:00	35.5	↑1.1
4/23 21:10	36.7	↑1.2
4/23 21:20	37.9	↑1.2
4/23 21:30	39.2	↑1.3
4/23 21:40	40.5	↑1.3
4/23 21:50	41.9	↑1.4
4/23 22:00	43.3	↑1.4
4/23 22:10	44.7	↑1.4
4/23 22:20	46.1	↑1.4
4/23 22:30	47.5	↑1.4
4/23 22:40	48.9	↑1.4
4/23 22:50	50.3	↑1.4
4/23 23:00	51.7	↑1.4
4/23 23:10	53.0	↑1.3
4/23 23:20	54.3	↑1.3
4/23 23:30	55.5	↑1.2
4/23 23:40	56.6	↑1.1
4/23 23:50	57.7	↑1.1