20 (土)	03:58	06:37	13:58	21:41
	62cm	59cm	117cm	25cm
大潮 出 06:14 入 16:57 出 16:06 入 05:41

コイセボイ（北海道）2027年02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
2/20 00:00	38.6	↑1.6
2/20 00:10	40.2	↑1.6
2/20 00:20	41.9	↑1.7
2/20 00:30	43.5	↑1.6
2/20 00:40	45.1	↑1.6
2/20 00:50	46.7	↑1.6
2/20 01:00	48.2	↑1.5
2/20 01:10	49.6	↑1.4
2/20 01:20	51.1	↑1.5
2/20 01:30	52.4	↑1.3
2/20 01:40	53.7	↑1.3
2/20 01:50	54.8	↑1.1
2/20 02:00	55.9	↑1.1
2/20 02:10	56.9	↑1.0
2/20 02:20	57.9	↑1.0
2/20 02:30	58.7	↑0.8
2/20 02:40	59.4	↑0.7
2/20 02:50	60.0	↑0.6
2/20 03:00	60.6	↑0.6
2/20 03:10	61.0	↑0.4
2/20 03:20	61.3	↑0.3
2/20 03:30	61.6	↑0.3
2/20 03:40	61.8	↑0.2
2/20 03:50	61.9	↑0.1	満潮
2/20 04:00	61.9	0
2/20 04:10	61.8	↓-0.1
2/20 04:20	61.7	↓-0.1
2/20 04:30	61.5	↓-0.2
2/20 04:40	61.3	↓-0.2
2/20 04:50	61.1	↓-0.2
2/20 05:00	60.8	↓-0.3
2/20 05:10	60.5	↓-0.3
2/20 05:20	60.2	↓-0.3
2/20 05:30	59.9	↓-0.3
2/20 05:40	59.6	↓-0.3
2/20 05:50	59.4	↓-0.2
2/20 06:00	59.1	↓-0.3
2/20 06:10	58.9	↓-0.2
2/20 06:20	58.8	↓-0.1
2/20 06:30	58.7	↓-0.1	干潮
2/20 06:40	58.7	0
2/20 06:50	58.8	↑0.1
2/20 07:00	58.9	↑0.1
2/20 07:10	59.2	↑0.3
2/20 07:20	59.5	↑0.3
2/20 07:30	60.0	↑0.5
2/20 07:40	60.5	↑0.5
2/20 07:50	61.2	↑0.7
2/20 08:00	62.0	↑0.8
2/20 08:10	62.8	↑0.8
2/20 08:20	63.8	↑1.0
2/20 08:30	65.0	↑1.2
2/20 08:40	66.2	↑1.2
2/20 08:50	67.5	↑1.3
2/20 09:00	69.0	↑1.5
2/20 09:10	70.5	↑1.5
2/20 09:20	72.2	↑1.7
2/20 09:30	73.9	↑1.7
2/20 09:40	75.8	↑1.9
2/20 09:50	77.7	↑1.9
2/20 10:00	79.6	↑1.9
2/20 10:10	81.6	↑2.0
2/20 10:20	83.7	↑2.1
2/20 10:30	85.8	↑2.1
2/20 10:40	88.0	↑2.2
2/20 10:50	90.1	↑2.1
2/20 11:00	92.2	↑2.1
2/20 11:10	94.4	↑2.2
2/20 11:20	96.5	↑2.1
2/20 11:30	98.5	↑2.0
2/20 11:40	100.5	↑2.0
2/20 11:50	102.5	↑2.0
2/20 12:00	104.4	↑1.9
2/20 12:10	106.1	↑1.7
2/20 12:20	107.8	↑1.7
2/20 12:30	109.3	↑1.5
2/20 12:40	110.7	↑1.4
2/20 12:50	112.0	↑1.3
2/20 13:00	113.2	↑1.2
2/20 13:10	114.1	↑0.9
2/20 13:20	114.9	↑0.8
2/20 13:30	115.5	↑0.6
2/20 13:40	116.0	↑0.5
2/20 13:50	116.2	↑0.2	満潮
2/20 14:00	116.3	↑0.1
2/20 14:10	116.1	↓-0.2
2/20 14:20	115.8	↓-0.3
2/20 14:30	115.2	↓-0.6
2/20 14:40	114.4	↓-0.8
2/20 14:50	113.5	↓-0.9
2/20 15:00	112.3	↓-1.2
2/20 15:10	111.0	↓-1.3
2/20 15:20	109.4	↓-1.6
2/20 15:30	107.7	↓-1.7
2/20 15:40	105.8	↓-1.9
2/20 15:50	103.7	↓-2.1
2/20 16:00	101.5	↓-2.2
2/20 16:10	99.1	↓-2.4
2/20 16:20	96.5	↓-2.6
2/20 16:30	93.9	↓-2.6
2/20 16:40	91.1	↓-2.8
2/20 16:50	88.2	↓-2.9
2/20 17:00	85.2	↓-3.0
2/20 17:10	82.2	↓-3.0
2/20 17:20	79.1	↓-3.1
2/20 17:30	75.9	↓-3.2	最大潮位差
2/20 17:40	72.8	↓-3.1
2/20 17:50	69.6	↓-3.2	最大潮位差
2/20 18:00	66.4	↓-3.2	最大潮位差
2/20 18:10	63.2	↓-3.2	最大潮位差
2/20 18:20	60.1	↓-3.1
2/20 18:30	57.1	↓-3.0
2/20 18:40	54.0	↓-3.1
2/20 18:50	51.1	↓-2.9
2/20 19:00	48.3	↓-2.8
2/20 19:10	45.6	↓-2.7
2/20 19:20	43.0	↓-2.6
2/20 19:30	40.5	↓-2.5
2/20 19:40	38.2	↓-2.3
2/20 19:50	36.1	↓-2.1
2/20 20:00	34.1	↓-2.0
2/20 20:10	32.2	↓-1.9
2/20 20:20	30.6	↓-1.6
2/20 20:30	29.1	↓-1.5
2/20 20:40	27.9	↓-1.2
2/20 20:50	26.8	↓-1.1
2/20 21:00	25.9	↓-0.9
2/20 21:10	25.2	↓-0.7
2/20 21:20	24.7	↓-0.5
2/20 21:30	24.4	↓-0.3
2/20 21:40	24.3	↓-0.1	干潮
2/20 21:50	24.4	↑0.1
2/20 22:00	24.7	↑0.3
2/20 22:10	25.1	↑0.4
2/20 22:20	25.7	↑0.6
2/20 22:30	26.5	↑0.8
2/20 22:40	27.4	↑0.9
2/20 22:50	28.5	↑1.1
2/20 23:00	29.7	↑1.2
2/20 23:10	31.0	↑1.3
2/20 23:20	32.4	↑1.4
2/20 23:30	33.9	↑1.5
2/20 23:40	35.5	↑1.6
2/20 23:50	37.2	↑1.7