1 (月)	01:39	07:16	13:49	20:12
	68cm	38cm	87cm	39cm
出 05:04 入 17:49 出 03:52 入 16:16

コイセボイ（北海道）2030年04月1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
4/1 00:00	61.7	↑1.1
4/1 00:10	62.8	↑1.1
4/1 00:20	63.8	↑1.0
4/1 00:30	64.7	↑0.9
4/1 00:40	65.4	↑0.7
4/1 00:50	66.1	↑0.7
4/1 01:00	66.6	↑0.5
4/1 01:10	67.0	↑0.4
4/1 01:20	67.3	↑0.3
4/1 01:30	67.5	↑0.2	満潮
4/1 01:40	67.5	0
4/1 01:50	67.4	↓-0.1
4/1 02:00	67.2	↓-0.2
4/1 02:10	66.9	↓-0.3
4/1 02:20	66.5	↓-0.4
4/1 02:30	65.9	↓-0.6
4/1 02:40	65.2	↓-0.7
4/1 02:50	64.4	↓-0.8
4/1 03:00	63.5	↓-0.9
4/1 03:10	62.5	↓-1.0
4/1 03:20	61.5	↓-1.0
4/1 03:30	60.3	↓-1.2
4/1 03:40	59.1	↓-1.2
4/1 03:50	57.8	↓-1.3
4/1 04:00	56.5	↓-1.3
4/1 04:10	55.2	↓-1.3
4/1 04:20	53.8	↓-1.4
4/1 04:30	52.4	↓-1.4
4/1 04:40	51.0	↓-1.4
4/1 04:50	49.7	↓-1.3
4/1 05:00	48.3	↓-1.4
4/1 05:10	47.0	↓-1.3
4/1 05:20	45.7	↓-1.3
4/1 05:30	44.5	↓-1.2
4/1 05:40	43.4	↓-1.1
4/1 05:50	42.3	↓-1.1
4/1 06:00	41.3	↓-1.0
4/1 06:10	40.4	↓-0.9
4/1 06:20	39.7	↓-0.7
4/1 06:30	39.0	↓-0.7
4/1 06:40	38.5	↓-0.5
4/1 06:50	38.1	↓-0.4
4/1 07:00	37.8	↓-0.3
4/1 07:10	37.6	↓-0.2	干潮
4/1 07:20	37.6	0
4/1 07:30	37.8	↑0.2
4/1 07:40	38.1	↑0.3
4/1 07:50	38.5	↑0.4
4/1 08:00	39.1	↑0.6
4/1 08:10	39.8	↑0.7
4/1 08:20	40.6	↑0.8
4/1 08:30	41.6	↑1.0
4/1 08:40	42.7	↑1.1
4/1 08:50	44.0	↑1.3
4/1 09:00	45.3	↑1.3
4/1 09:10	46.8	↑1.5
4/1 09:20	48.4	↑1.6
4/1 09:30	50.0	↑1.6
4/1 09:40	51.8	↑1.8
4/1 09:50	53.6	↑1.8
4/1 10:00	55.5	↑1.9
4/1 10:10	57.4	↑1.9
4/1 10:20	59.3	↑1.9
4/1 10:30	61.3	↑2.0	最大潮位差
4/1 10:40	63.3	↑2.0	最大潮位差
4/1 10:50	65.3	↑2.0	最大潮位差
4/1 11:00	67.2	↑1.9
4/1 11:10	69.2	↑2.0	最大潮位差
4/1 11:20	71.1	↑1.9
4/1 11:30	72.9	↑1.8
4/1 11:40	74.7	↑1.8
4/1 11:50	76.4	↑1.7
4/1 12:00	78.0	↑1.6
4/1 12:10	79.5	↑1.5
4/1 12:20	80.8	↑1.3
4/1 12:30	82.1	↑1.3
4/1 12:40	83.2	↑1.1
4/1 12:50	84.2	↑1.0
4/1 13:00	85.1	↑0.9
4/1 13:10	85.8	↑0.7
4/1 13:20	86.3	↑0.5
4/1 13:30	86.7	↑0.4
4/1 13:40	86.9	↑0.2	満潮
4/1 13:50	87.0	↑0.1
4/1 14:00	86.9	↓-0.1
4/1 14:10	86.6	↓-0.3
4/1 14:20	86.2	↓-0.4
4/1 14:30	85.6	↓-0.6
4/1 14:40	84.8	↓-0.8
4/1 14:50	83.9	↓-0.9
4/1 15:00	82.9	↓-1.0
4/1 15:10	81.7	↓-1.2
4/1 15:20	80.4	↓-1.3
4/1 15:30	78.9	↓-1.5
4/1 15:40	77.4	↓-1.5
4/1 15:50	75.7	↓-1.7
4/1 16:00	74.0	↓-1.7
4/1 16:10	72.2	↓-1.8
4/1 16:20	70.3	↓-1.9
4/1 16:30	68.3	↓-2.0	最大潮位差
4/1 16:40	66.4	↓-1.9
4/1 16:50	64.4	↓-2.0	最大潮位差
4/1 17:00	62.4	↓-2.0	最大潮位差
4/1 17:10	60.4	↓-2.0	最大潮位差
4/1 17:20	58.4	↓-2.0	最大潮位差
4/1 17:30	56.4	↓-2.0	最大潮位差
4/1 17:40	54.5	↓-1.9
4/1 17:50	52.6	↓-1.9
4/1 18:00	50.8	↓-1.8
4/1 18:10	49.1	↓-1.7
4/1 18:20	47.5	↓-1.6
4/1 18:30	45.9	↓-1.6
4/1 18:40	44.5	↓-1.4
4/1 18:50	43.2	↓-1.3
4/1 19:00	42.1	↓-1.1
4/1 19:10	41.1	↓-1.0
4/1 19:20	40.2	↓-0.9
4/1 19:30	39.5	↓-0.7
4/1 19:40	38.9	↓-0.6
4/1 19:50	38.5	↓-0.4
4/1 20:00	38.2	↓-0.3
4/1 20:10	38.1	↓-0.1	干潮
4/1 20:20	38.2	↑0.1
4/1 20:30	38.4	↑0.2
4/1 20:40	38.8	↑0.4
4/1 20:50	39.3	↑0.5
4/1 21:00	40.0	↑0.7
4/1 21:10	40.8	↑0.8
4/1 21:20	41.7	↑0.9
4/1 21:30	42.8	↑1.1
4/1 21:40	44.0	↑1.2
4/1 21:50	45.2	↑1.2
4/1 22:00	46.6	↑1.4
4/1 22:10	48.1	↑1.5
4/1 22:20	49.6	↑1.5
4/1 22:30	51.2	↑1.6
4/1 22:40	52.9	↑1.7
4/1 22:50	54.6	↑1.7
4/1 23:00	56.3	↑1.7
4/1 23:10	58.0	↑1.7
4/1 23:20	59.7	↑1.7
4/1 23:30	61.3	↑1.6
4/1 23:40	63.0	↑1.7
4/1 23:50	64.6	↑1.6