20 (金)	09:57	02:28	19:08	10:16
	59cm	33cm	100cm	59cm
小潮 出 05:42 入 16:31 出 12:12 入 22:14

コイセボイ（北海道）2034年10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
10/20 00:00	45.9	↓-1.8
10/20 00:10	44.2	↓-1.7
10/20 00:20	42.6	↓-1.6
10/20 00:30	41.1	↓-1.5
10/20 00:40	39.8	↓-1.3
10/20 00:50	38.5	↓-1.3
10/20 01:00	37.4	↓-1.1
10/20 01:10	36.4	↓-1.0
10/20 01:20	35.5	↓-0.9
10/20 01:30	34.8	↓-0.7
10/20 01:40	34.2	↓-0.6
10/20 01:50	33.7	↓-0.5
10/20 02:00	33.3	↓-0.4
10/20 02:10	33.0	↓-0.3
10/20 02:20	32.9	↓-0.1	干潮
10/20 02:30	32.9	0
10/20 02:40	33.0	↑0.1
10/20 02:50	33.2	↑0.2
10/20 03:00	33.5	↑0.3
10/20 03:10	33.9	↑0.4
10/20 03:20	34.4	↑0.5
10/20 03:30	34.9	↑0.5
10/20 03:40	35.6	↑0.7
10/20 03:50	36.3	↑0.7
10/20 04:00	37.1	↑0.8
10/20 04:10	37.9	↑0.8
10/20 04:20	38.8	↑0.9
10/20 04:30	39.7	↑0.9
10/20 04:40	40.6	↑0.9
10/20 04:50	41.6	↑1.0
10/20 05:00	42.6	↑1.0
10/20 05:10	43.6	↑1.0
10/20 05:20	44.5	↑0.9
10/20 05:30	45.5	↑1.0
10/20 05:40	46.5	↑1.0
10/20 05:50	47.5	↑1.0
10/20 06:00	48.4	↑0.9
10/20 06:10	49.3	↑0.9
10/20 06:20	50.2	↑0.9
10/20 06:30	51.0	↑0.8
10/20 06:40	51.8	↑0.8
10/20 06:50	52.6	↑0.8
10/20 07:00	53.3	↑0.7
10/20 07:10	53.9	↑0.6
10/20 07:20	54.5	↑0.6
10/20 07:30	55.1	↑0.6
10/20 07:40	55.6	↑0.5
10/20 07:50	56.0	↑0.4
10/20 08:00	56.4	↑0.4
10/20 08:10	56.8	↑0.4
10/20 08:20	57.1	↑0.3
10/20 08:30	57.3	↑0.2
10/20 08:40	57.5	↑0.2
10/20 08:50	57.7	↑0.2
10/20 09:00	57.8	↑0.1
10/20 09:10	57.9	↑0.1
10/20 09:20	58.0	↑0.1
10/20 09:30	58.0	0
10/20 09:40	58.0	0
10/20 09:50	58.0	0	満潮
10/20 10:00	58.1	↑0.1
10/20 10:10	58.0	↓-0.1	干潮
10/20 10:20	58.0	0
10/20 10:30	58.1	↑0.1
10/20 10:40	58.1	0
10/20 10:50	58.1	0
10/20 11:00	58.2	↑0.1
10/20 11:10	58.3	↑0.1
10/20 11:20	58.4	↑0.1
10/20 11:30	58.6	↑0.2
10/20 11:40	58.8	↑0.2
10/20 11:50	59.0	↑0.2
10/20 12:00	59.3	↑0.3
10/20 12:10	59.7	↑0.4
10/20 12:20	60.1	↑0.4
10/20 12:30	60.6	↑0.5
10/20 12:40	61.1	↑0.5
10/20 12:50	61.7	↑0.6
10/20 13:00	62.4	↑0.7
10/20 13:10	63.1	↑0.7
10/20 13:20	63.9	↑0.8
10/20 13:30	64.8	↑0.9
10/20 13:40	65.7	↑0.9
10/20 13:50	66.7	↑1.0
10/20 14:00	67.7	↑1.0
10/20 14:10	68.8	↑1.1
10/20 14:20	70.0	↑1.2
10/20 14:30	71.2	↑1.2
10/20 14:40	72.4	↑1.2
10/20 14:50	73.7	↑1.3
10/20 15:00	75.0	↑1.3
10/20 15:10	76.3	↑1.3
10/20 15:20	77.7	↑1.4
10/20 15:30	79.0	↑1.3
10/20 15:40	80.4	↑1.4
10/20 15:50	81.8	↑1.4
10/20 16:00	83.1	↑1.3
10/20 16:10	84.5	↑1.4
10/20 16:20	85.8	↑1.3
10/20 16:30	87.2	↑1.4
10/20 16:40	88.4	↑1.2
10/20 16:50	89.7	↑1.3
10/20 17:00	90.9	↑1.2
10/20 17:10	92.0	↑1.1
10/20 17:20	93.1	↑1.1
10/20 17:30	94.1	↑1.0
10/20 17:40	95.0	↑0.9
10/20 17:50	95.8	↑0.8
10/20 18:00	96.6	↑0.8
10/20 18:10	97.2	↑0.6
10/20 18:20	97.8	↑0.6
10/20 18:30	98.3	↑0.5
10/20 18:40	98.6	↑0.3
10/20 18:50	98.9	↑0.3
10/20 19:00	99.0	↑0.1	満潮
10/20 19:10	99.0	0
10/20 19:20	98.9	↓-0.1
10/20 19:30	98.7	↓-0.2
10/20 19:40	98.4	↓-0.3
10/20 19:50	97.9	↓-0.5
10/20 20:00	97.4	↓-0.5
10/20 20:10	96.7	↓-0.7
10/20 20:20	95.9	↓-0.8
10/20 20:30	95.0	↓-0.9
10/20 20:40	94.0	↓-1.0
10/20 20:50	92.9	↓-1.1
10/20 21:00	91.7	↓-1.2
10/20 21:10	90.4	↓-1.3
10/20 21:20	89.0	↓-1.4
10/20 21:30	87.5	↓-1.5
10/20 21:40	85.9	↓-1.6
10/20 21:50	84.3	↓-1.6
10/20 22:00	82.6	↓-1.7
10/20 22:10	80.8	↓-1.8
10/20 22:20	79.0	↓-1.8
10/20 22:30	77.2	↓-1.8
10/20 22:40	75.3	↓-1.9
10/20 22:50	73.4	↓-1.9
10/20 23:00	71.4	↓-2.0	最大潮位差
10/20 23:10	69.5	↓-1.9
10/20 23:20	67.6	↓-1.9
10/20 23:30	65.6	↓-2.0	最大潮位差
10/20 23:40	63.7	↓-1.9
10/20 23:50	61.8	↓-1.9