9 (土)	04:55	09:45	15:57	23:13
	82cm	55cm	110cm	18cm
中潮 出 05:28 入 16:49 出 08:33 入 18:26

コイセボイ（北海道）2021年10月9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
10/9 00:00	28.3	↑1.8
10/9 00:10	30.2	↑1.9
10/9 00:20	32.3	↑2.1
10/9 00:30	34.5	↑2.2
10/9 00:40	36.7	↑2.2
10/9 00:50	39.1	↑2.4
10/9 01:00	41.5	↑2.4
10/9 01:10	44.0	↑2.5
10/9 01:20	46.5	↑2.5
10/9 01:30	49.1	↑2.6
10/9 01:40	51.6	↑2.5
10/9 01:50	54.1	↑2.5
10/9 02:00	56.6	↑2.5
10/9 02:10	59.1	↑2.5
10/9 02:20	61.4	↑2.3
10/9 02:30	63.7	↑2.3
10/9 02:40	65.9	↑2.2
10/9 02:50	68.0	↑2.1
10/9 03:00	70.0	↑2.0
10/9 03:10	71.8	↑1.8
10/9 03:20	73.5	↑1.7
10/9 03:30	75.0	↑1.5
10/9 03:40	76.4	↑1.4
10/9 03:50	77.6	↑1.2
10/9 04:00	78.7	↑1.1
10/9 04:10	79.5	↑0.8
10/9 04:20	80.2	↑0.7
10/9 04:30	80.8	↑0.6
10/9 04:40	81.1	↑0.3
10/9 04:50	81.3	↑0.2	満潮
10/9 05:00	81.2	↓-0.1
10/9 05:10	81.1	↓-0.1
10/9 05:20	80.7	↓-0.4
10/9 05:30	80.2	↓-0.5
10/9 05:40	79.6	↓-0.6
10/9 05:50	78.8	↓-0.8
10/9 06:00	77.9	↓-0.9
10/9 06:10	76.9	↓-1.0
10/9 06:20	75.8	↓-1.1
10/9 06:30	74.6	↓-1.2
10/9 06:40	73.4	↓-1.2
10/9 06:50	72.0	↓-1.4
10/9 07:00	70.7	↓-1.3
10/9 07:10	69.3	↓-1.4
10/9 07:20	67.9	↓-1.4
10/9 07:30	66.4	↓-1.5
10/9 07:40	65.0	↓-1.4
10/9 07:50	63.7	↓-1.3
10/9 08:00	62.4	↓-1.3
10/9 08:10	61.1	↓-1.3
10/9 08:20	60.0	↓-1.1
10/9 08:30	58.9	↓-1.1
10/9 08:40	57.9	↓-1.0
10/9 08:50	57.0	↓-0.9
10/9 09:00	56.3	↓-0.7
10/9 09:10	55.7	↓-0.6
10/9 09:20	55.2	↓-0.5
10/9 09:30	54.9	↓-0.3
10/9 09:40	54.8	↓-0.1	干潮
10/9 09:50	54.8	0
10/9 10:00	55.0	↑0.2
10/9 10:10	55.3	↑0.3
10/9 10:20	55.9	↑0.6
10/9 10:30	56.5	↑0.6
10/9 10:40	57.4	↑0.9
10/9 10:50	58.4	↑1.0
10/9 11:00	59.6	↑1.2
10/9 11:10	60.9	↑1.3
10/9 11:20	62.4	↑1.5
10/9 11:30	64.1	↑1.7
10/9 11:40	65.8	↑1.7
10/9 11:50	67.7	↑1.9
10/9 12:00	69.7	↑2.0
10/9 12:10	71.7	↑2.0
10/9 12:20	73.9	↑2.2
10/9 12:30	76.1	↑2.2
10/9 12:40	78.3	↑2.2
10/9 12:50	80.6	↑2.3
10/9 13:00	82.9	↑2.3
10/9 13:10	85.2	↑2.3
10/9 13:20	87.5	↑2.3
10/9 13:30	89.8	↑2.3
10/9 13:40	92.0	↑2.2
10/9 13:50	94.1	↑2.1
10/9 14:00	96.2	↑2.1
10/9 14:10	98.2	↑2.0
10/9 14:20	100.0	↑1.8
10/9 14:30	101.7	↑1.7
10/9 14:40	103.3	↑1.6
10/9 14:50	104.7	↑1.4
10/9 15:00	105.9	↑1.2
10/9 15:10	107.0	↑1.1
10/9 15:20	107.8	↑0.8
10/9 15:30	108.5	↑0.7
10/9 15:40	108.9	↑0.4
10/9 15:50	109.2	↑0.3	満潮
10/9 16:00	109.2	0
10/9 16:10	109.0	↓-0.2
10/9 16:20	108.5	↓-0.5
10/9 16:30	107.9	↓-0.6
10/9 16:40	107.0	↓-0.9
10/9 16:50	105.9	↓-1.1
10/9 17:00	104.5	↓-1.4
10/9 17:10	103.0	↓-1.5
10/9 17:20	101.2	↓-1.8
10/9 17:30	99.2	↓-2.0
10/9 17:40	97.1	↓-2.1
10/9 17:50	94.8	↓-2.3
10/9 18:00	92.3	↓-2.5
10/9 18:10	89.6	↓-2.7
10/9 18:20	86.8	↓-2.8
10/9 18:30	83.9	↓-2.9
10/9 18:40	80.8	↓-3.1
10/9 18:50	77.7	↓-3.1
10/9 19:00	74.5	↓-3.2
10/9 19:10	71.2	↓-3.3
10/9 19:20	67.9	↓-3.3
10/9 19:30	64.5	↓-3.4	最大潮位差
10/9 19:40	61.2	↓-3.3
10/9 19:50	57.8	↓-3.4	最大潮位差
10/9 20:00	54.5	↓-3.3
10/9 20:10	51.3	↓-3.2
10/9 20:20	48.1	↓-3.2
10/9 20:30	45.0	↓-3.1
10/9 20:40	42.0	↓-3.0
10/9 20:50	39.1	↓-2.9
10/9 21:00	36.4	↓-2.7
10/9 21:10	33.7	↓-2.7
10/9 21:20	31.3	↓-2.4
10/9 21:30	29.0	↓-2.3
10/9 21:40	26.9	↓-2.1
10/9 21:50	25.0	↓-1.9
10/9 22:00	23.3	↓-1.7
10/9 22:10	21.9	↓-1.4
10/9 22:20	20.6	↓-1.3
10/9 22:30	19.5	↓-1.1
10/9 22:40	18.7	↓-0.8
10/9 22:50	18.1	↓-0.6
10/9 23:00	17.7	↓-0.4
10/9 23:10	17.6	↓-0.1	干潮
10/9 23:20	17.6	0
10/9 23:30	17.9	↑0.3
10/9 23:40	18.4	↑0.5
10/9 23:50	19.1	↑0.7