18 (日)	04:06	06:39	13:58	21:47
	64cm	61cm	118cm	21cm
大潮 出 06:16 入 16:56 出 15:25 入 05:42

コイセボイ（北海道）2057年02月18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
2/18 00:00	38.0	↑1.7
2/18 00:10	39.8	↑1.8
2/18 00:20	41.5	↑1.7
2/18 00:30	43.2	↑1.7
2/18 00:40	45.0	↑1.8
2/18 00:50	46.6	↑1.6
2/18 01:00	48.3	↑1.7
2/18 01:10	49.8	↑1.5
2/18 01:20	51.4	↑1.6
2/18 01:30	52.8	↑1.4
2/18 01:40	54.2	↑1.4
2/18 01:50	55.5	↑1.3
2/18 02:00	56.7	↑1.2
2/18 02:10	57.8	↑1.1
2/18 02:20	58.8	↑1.0
2/18 02:30	59.7	↑0.9
2/18 02:40	60.6	↑0.9
2/18 02:50	61.3	↑0.7
2/18 03:00	61.9	↑0.6
2/18 03:10	62.4	↑0.5
2/18 03:20	62.8	↑0.4
2/18 03:30	63.2	↑0.4
2/18 03:40	63.4	↑0.2
2/18 03:50	63.5	↑0.1
2/18 04:00	63.6	↑0.1	満潮
2/18 04:10	63.6	0
2/18 04:20	63.6	0
2/18 04:30	63.4	↓-0.2
2/18 04:40	63.3	↓-0.1
2/18 04:50	63.0	↓-0.3
2/18 05:00	62.8	↓-0.2
2/18 05:10	62.5	↓-0.3
2/18 05:20	62.2	↓-0.3
2/18 05:30	62.0	↓-0.2
2/18 05:40	61.7	↓-0.3
2/18 05:50	61.4	↓-0.3
2/18 06:00	61.2	↓-0.2
2/18 06:10	61.0	↓-0.2
2/18 06:20	60.9	↓-0.1
2/18 06:30	60.8	↓-0.1	干潮
2/18 06:40	60.8	0
2/18 06:50	60.8	0
2/18 07:00	61.0	↑0.2
2/18 07:10	61.2	↑0.2
2/18 07:20	61.5	↑0.3
2/18 07:30	61.9	↑0.4
2/18 07:40	62.4	↑0.5
2/18 07:50	63.1	↑0.7
2/18 08:00	63.8	↑0.7
2/18 08:10	64.7	↑0.9
2/18 08:20	65.7	↑1.0
2/18 08:30	66.7	↑1.0
2/18 08:40	67.9	↑1.2
2/18 08:50	69.3	↑1.4
2/18 09:00	70.7	↑1.4
2/18 09:10	72.2	↑1.5
2/18 09:20	73.8	↑1.6
2/18 09:30	75.6	↑1.8
2/18 09:40	77.4	↑1.8
2/18 09:50	79.2	↑1.8
2/18 10:00	81.2	↑2.0
2/18 10:10	83.2	↑2.0
2/18 10:20	85.3	↑2.1
2/18 10:30	87.4	↑2.1
2/18 10:40	89.5	↑2.1
2/18 10:50	91.6	↑2.1
2/18 11:00	93.8	↑2.2
2/18 11:10	95.9	↑2.1
2/18 11:20	98.0	↑2.1
2/18 11:30	100.1	↑2.1
2/18 11:40	102.1	↑2.0
2/18 11:50	104.0	↑1.9
2/18 12:00	105.9	↑1.9
2/18 12:10	107.6	↑1.7
2/18 12:20	109.3	↑1.7
2/18 12:30	110.9	↑1.6
2/18 12:40	112.3	↑1.4
2/18 12:50	113.6	↑1.3
2/18 13:00	114.7	↑1.1
2/18 13:10	115.7	↑1.0
2/18 13:20	116.5	↑0.8
2/18 13:30	117.1	↑0.6
2/18 13:40	117.5	↑0.4
2/18 13:50	117.7	↑0.2	満潮
2/18 14:00	117.8	↑0.1
2/18 14:10	117.6	↓-0.2
2/18 14:20	117.2	↓-0.4
2/18 14:30	116.7	↓-0.5
2/18 14:40	115.9	↓-0.8
2/18 14:50	114.9	↓-1.0
2/18 15:00	113.7	↓-1.2
2/18 15:10	112.3	↓-1.4
2/18 15:20	110.7	↓-1.6
2/18 15:30	108.9	↓-1.8
2/18 15:40	106.9	↓-2.0
2/18 15:50	104.8	↓-2.1
2/18 16:00	102.5	↓-2.3
2/18 16:10	100.0	↓-2.5
2/18 16:20	97.4	↓-2.6
2/18 16:30	94.6	↓-2.8
2/18 16:40	91.7	↓-2.9
2/18 16:50	88.7	↓-3.0
2/18 17:00	85.7	↓-3.0
2/18 17:10	82.5	↓-3.2
2/18 17:20	79.3	↓-3.2
2/18 17:30	76.0	↓-3.3
2/18 17:40	72.7	↓-3.3
2/18 17:50	69.4	↓-3.3
2/18 18:00	66.0	↓-3.4	最大潮位差
2/18 18:10	62.7	↓-3.3
2/18 18:20	59.4	↓-3.3
2/18 18:30	56.2	↓-3.2
2/18 18:40	53.0	↓-3.2
2/18 18:50	49.9	↓-3.1
2/18 19:00	46.9	↓-3.0
2/18 19:10	44.1	↓-2.8
2/18 19:20	41.3	↓-2.8
2/18 19:30	38.7	↓-2.6
2/18 19:40	36.2	↓-2.5
2/18 19:50	33.8	↓-2.4
2/18 20:00	31.7	↓-2.1
2/18 20:10	29.7	↓-2.0
2/18 20:20	27.9	↓-1.8
2/18 20:30	26.3	↓-1.6
2/18 20:40	24.8	↓-1.5
2/18 20:50	23.6	↓-1.2
2/18 21:00	22.6	↓-1.0
2/18 21:10	21.8	↓-0.8
2/18 21:20	21.1	↓-0.7
2/18 21:30	20.7	↓-0.4
2/18 21:40	20.5	↓-0.2	干潮
2/18 21:50	20.5	0
2/18 22:00	20.7	↑0.2
2/18 22:10	21.0	↑0.3
2/18 22:20	21.6	↑0.6
2/18 22:30	22.3	↑0.7
2/18 22:40	23.2	↑0.9
2/18 22:50	24.2	↑1.0
2/18 23:00	25.4	↑1.2
2/18 23:10	26.7	↑1.3
2/18 23:20	28.1	↑1.4
2/18 23:30	29.6	↑1.5
2/18 23:40	31.2	↑1.6
2/18 23:50	32.9	↑1.7