21 (木)	13:43	07:01	23:54	16:40
	62cm	31cm	102cm	59cm
中潮 出 03:38 入 19:09 出 14:57 入 00:51

コイセボイ（北海道）2040年06月21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
6/21 00:00	89.9	↓-0.5
6/21 00:10	89.2	↓-0.7
6/21 00:20	88.4	↓-0.8
6/21 00:30	87.4	↓-1.0
6/21 00:40	86.4	↓-1.0
6/21 00:50	85.2	↓-1.2
6/21 01:00	83.9	↓-1.3
6/21 01:10	82.5	↓-1.4
6/21 01:20	81.0	↓-1.5
6/21 01:30	79.4	↓-1.6
6/21 01:40	77.7	↓-1.7
6/21 01:50	76.0	↓-1.7
6/21 02:00	74.1	↓-1.9
6/21 02:10	72.2	↓-1.9
6/21 02:20	70.3	↓-1.9
6/21 02:30	68.3	↓-2.0
6/21 02:40	66.3	↓-2.0
6/21 02:50	64.2	↓-2.1	最大潮位差
6/21 03:00	62.1	↓-2.1	最大潮位差
6/21 03:10	60.1	↓-2.0
6/21 03:20	58.0	↓-2.1	最大潮位差
6/21 03:30	55.9	↓-2.1	最大潮位差
6/21 03:40	53.9	↓-2.0
6/21 03:50	51.9	↓-2.0
6/21 04:00	50.0	↓-1.9
6/21 04:10	48.1	↓-1.9
6/21 04:20	46.3	↓-1.8
6/21 04:30	44.5	↓-1.8
6/21 04:40	42.8	↓-1.7
6/21 04:50	41.2	↓-1.6
6/21 05:00	39.7	↓-1.5
6/21 05:10	38.3	↓-1.4
6/21 05:20	37.1	↓-1.2
6/21 05:30	35.9	↓-1.2
6/21 05:40	34.8	↓-1.1
6/21 05:50	33.9	↓-0.9
6/21 06:00	33.1	↓-0.8
6/21 06:10	32.4	↓-0.7
6/21 06:20	31.8	↓-0.6
6/21 06:30	31.4	↓-0.4
6/21 06:40	31.0	↓-0.4
6/21 06:50	30.9	↓-0.1
6/21 07:00	30.8	↓-0.1	干潮
6/21 07:10	30.8	0
6/21 07:20	31.0	↑0.2
6/21 07:30	31.3	↑0.3
6/21 07:40	31.7	↑0.4
6/21 07:50	32.2	↑0.5
6/21 08:00	32.8	↑0.6
6/21 08:10	33.5	↑0.7
6/21 08:20	34.3	↑0.8
6/21 08:30	35.2	↑0.9
6/21 08:40	36.1	↑0.9
6/21 08:50	37.1	↑1.0
6/21 09:00	38.2	↑1.1
6/21 09:10	39.3	↑1.1
6/21 09:20	40.5	↑1.2
6/21 09:30	41.7	↑1.2
6/21 09:40	42.9	↑1.2
6/21 09:50	44.1	↑1.2
6/21 10:00	45.3	↑1.2
6/21 10:10	46.5	↑1.2
6/21 10:20	47.7	↑1.2
6/21 10:30	48.9	↑1.2
6/21 10:40	50.1	↑1.2
6/21 10:50	51.2	↑1.1
6/21 11:00	52.3	↑1.1
6/21 11:10	53.4	↑1.1
6/21 11:20	54.4	↑1.0
6/21 11:30	55.3	↑0.9
6/21 11:40	56.2	↑0.9
6/21 11:50	57.0	↑0.8
6/21 12:00	57.7	↑0.7
6/21 12:10	58.4	↑0.7
6/21 12:20	59.0	↑0.6
6/21 12:30	59.6	↑0.6
6/21 12:40	60.0	↑0.4
6/21 12:50	60.4	↑0.4
6/21 13:00	60.7	↑0.3
6/21 13:10	60.9	↑0.2
6/21 13:20	61.1	↑0.2
6/21 13:30	61.2	↑0.1
6/21 13:40	61.3	↑0.1	満潮
6/21 13:50	61.2	↓-0.1
6/21 14:00	61.2	0
6/21 14:10	61.1	↓-0.1
6/21 14:20	60.9	↓-0.2
6/21 14:30	60.7	↓-0.2
6/21 14:40	60.5	↓-0.2
6/21 14:50	60.2	↓-0.3
6/21 15:00	60.0	↓-0.2
6/21 15:10	59.7	↓-0.3
6/21 15:20	59.4	↓-0.3
6/21 15:30	59.1	↓-0.3
6/21 15:40	58.9	↓-0.2
6/21 15:50	58.7	↓-0.2
6/21 16:00	58.4	↓-0.3
6/21 16:10	58.3	↓-0.1
6/21 16:20	58.1	↓-0.2
6/21 16:30	58.1	0	干潮
6/21 16:40	58.0	↓-0.1	干潮
6/21 16:50	58.1	↑0.1
6/21 17:00	58.2	↑0.1
6/21 17:10	58.4	↑0.2
6/21 17:20	58.6	↑0.2
6/21 17:30	58.9	↑0.3
6/21 17:40	59.3	↑0.4
6/21 17:50	59.8	↑0.5
6/21 18:00	60.4	↑0.6
6/21 18:10	61.1	↑0.7
6/21 18:20	61.9	↑0.8
6/21 18:30	62.7	↑0.8
6/21 18:40	63.6	↑0.9
6/21 18:50	64.7	↑1.1
6/21 19:00	65.8	↑1.1
6/21 19:10	66.9	↑1.1
6/21 19:20	68.2	↑1.3
6/21 19:30	69.5	↑1.3
6/21 19:40	70.9	↑1.4
6/21 19:50	72.3	↑1.4
6/21 20:00	73.8	↑1.5
6/21 20:10	75.4	↑1.6
6/21 20:20	76.9	↑1.5
6/21 20:30	78.5	↑1.6
6/21 20:40	80.1	↑1.6
6/21 20:50	81.7	↑1.6
6/21 21:00	83.4	↑1.7
6/21 21:10	85.0	↑1.6
6/21 21:20	86.5	↑1.5
6/21 21:30	88.1	↑1.6
6/21 21:40	89.6	↑1.5
6/21 21:50	91.1	↑1.5
6/21 22:00	92.4	↑1.3
6/21 22:10	93.8	↑1.4
6/21 22:20	95.0	↑1.2
6/21 22:30	96.1	↑1.1
6/21 22:40	97.2	↑1.1
6/21 22:50	98.1	↑0.9
6/21 23:00	98.9	↑0.8
6/21 23:10	99.6	↑0.7
6/21 23:20	100.2	↑0.6
6/21 23:30	100.6	↑0.4
6/21 23:40	100.9	↑0.3
6/21 23:50	101.0	↑0.1	満潮