20 (水)	04:08	09:59	16:26	22:38
	84cm	37cm	100cm	42cm
中潮 出 06:14 入 16:58 出 19:33 入 06:39

コイセボイ（北海道）2030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	46.6	↑1.6
2/20 00:10	48.3	↑1.7
2/20 00:20	50.2	↑1.9
2/20 00:30	52.1	↑1.9
2/20 00:40	54.1	↑2.0
2/20 00:50	56.1	↑2.0
2/20 01:00	58.2	↑2.1
2/20 01:10	60.3	↑2.1
2/20 01:20	62.4	↑2.1
2/20 01:30	64.4	↑2.0
2/20 01:40	66.5	↑2.1
2/20 01:50	68.5	↑2.0
2/20 02:00	70.4	↑1.9
2/20 02:10	72.3	↑1.9
2/20 02:20	74.0	↑1.7
2/20 02:30	75.7	↑1.7
2/20 02:40	77.2	↑1.5
2/20 02:50	78.6	↑1.4
2/20 03:00	79.8	↑1.2
2/20 03:10	80.9	↑1.1
2/20 03:20	81.9	↑1.0
2/20 03:30	82.6	↑0.7
2/20 03:40	83.2	↑0.6
2/20 03:50	83.6	↑0.4
2/20 04:00	83.8	↑0.2	満潮
2/20 04:10	83.9	↑0.1
2/20 04:20	83.7	↓-0.2
2/20 04:30	83.4	↓-0.3
2/20 04:40	82.8	↓-0.6
2/20 04:50	82.1	↓-0.7
2/20 05:00	81.3	↓-0.8
2/20 05:10	80.2	↓-1.1
2/20 05:20	79.0	↓-1.2
2/20 05:30	77.7	↓-1.3
2/20 05:40	76.2	↓-1.5
2/20 05:50	74.5	↓-1.7
2/20 06:00	72.8	↓-1.7
2/20 06:10	71.0	↓-1.8
2/20 06:20	69.1	↓-1.9
2/20 06:30	67.1	↓-2.0
2/20 06:40	65.0	↓-2.1
2/20 06:50	62.9	↓-2.1
2/20 07:00	60.8	↓-2.1
2/20 07:10	58.7	↓-2.1
2/20 07:20	56.5	↓-2.2
2/20 07:30	54.5	↓-2.0
2/20 07:40	52.4	↓-2.1
2/20 07:50	50.4	↓-2.0
2/20 08:00	48.5	↓-1.9
2/20 08:10	46.7	↓-1.8
2/20 08:20	45.0	↓-1.7
2/20 08:30	43.3	↓-1.7
2/20 08:40	41.9	↓-1.4
2/20 08:50	40.6	↓-1.3
2/20 09:00	39.4	↓-1.2
2/20 09:10	38.4	↓-1.0
2/20 09:20	37.6	↓-0.8
2/20 09:30	36.9	↓-0.7
2/20 09:40	36.5	↓-0.4
2/20 09:50	36.2	↓-0.3	干潮
2/20 10:00	36.1	↓-0.1
2/20 10:10	36.3	↑0.2
2/20 10:20	36.6	↑0.3
2/20 10:30	37.2	↑0.6
2/20 10:40	37.9	↑0.7
2/20 10:50	38.8	↑0.9
2/20 11:00	40.0	↑1.2
2/20 11:10	41.3	↑1.3
2/20 11:20	42.8	↑1.5
2/20 11:30	44.4	↑1.6
2/20 11:40	46.2	↑1.8
2/20 11:50	48.2	↑2.0
2/20 12:00	50.3	↑2.1
2/20 12:10	52.5	↑2.2
2/20 12:20	54.8	↑2.3
2/20 12:30	57.2	↑2.4
2/20 12:40	59.7	↑2.5
2/20 12:50	62.2	↑2.5
2/20 13:00	64.8	↑2.6	最大潮位差
2/20 13:10	67.4	↑2.6	最大潮位差
2/20 13:20	70.0	↑2.6	最大潮位差
2/20 13:30	72.6	↑2.6	最大潮位差
2/20 13:40	75.1	↑2.5
2/20 13:50	77.6	↑2.5
2/20 14:00	80.1	↑2.5
2/20 14:10	82.5	↑2.4
2/20 14:20	84.7	↑2.2
2/20 14:30	86.9	↑2.2
2/20 14:40	88.9	↑2.0
2/20 14:50	90.8	↑1.9
2/20 15:00	92.6	↑1.8
2/20 15:10	94.2	↑1.6
2/20 15:20	95.6	↑1.4
2/20 15:30	96.8	↑1.2
2/20 15:40	97.8	↑1.0
2/20 15:50	98.6	↑0.8
2/20 16:00	99.3	↑0.7
2/20 16:10	99.7	↑0.4
2/20 16:20	99.9	↑0.2	満潮
2/20 16:30	99.9	0
2/20 16:40	99.7	↓-0.2
2/20 16:50	99.2	↓-0.5
2/20 17:00	98.6	↓-0.6
2/20 17:10	97.8	↓-0.8
2/20 17:20	96.8	↓-1.0
2/20 17:30	95.6	↓-1.2
2/20 17:40	94.2	↓-1.4
2/20 17:50	92.6	↓-1.6
2/20 18:00	90.9	↓-1.7
2/20 18:10	89.1	↓-1.8
2/20 18:20	87.1	↓-2.0
2/20 18:30	85.0	↓-2.1
2/20 18:40	82.8	↓-2.2
2/20 18:50	80.5	↓-2.3
2/20 19:00	78.2	↓-2.3
2/20 19:10	75.8	↓-2.4
2/20 19:20	73.4	↓-2.4
2/20 19:30	70.9	↓-2.5
2/20 19:40	68.5	↓-2.4
2/20 19:50	66.1	↓-2.4
2/20 20:00	63.7	↓-2.4
2/20 20:10	61.3	↓-2.4
2/20 20:20	59.1	↓-2.2
2/20 20:30	56.9	↓-2.2
2/20 20:40	54.8	↓-2.1
2/20 20:50	52.9	↓-1.9
2/20 21:00	51.0	↓-1.9
2/20 21:10	49.3	↓-1.7
2/20 21:20	47.8	↓-1.5
2/20 21:30	46.4	↓-1.4
2/20 21:40	45.2	↓-1.2
2/20 21:50	44.2	↓-1.0
2/20 22:00	43.4	↓-0.8
2/20 22:10	42.7	↓-0.7
2/20 22:20	42.3	↓-0.4
2/20 22:30	42.0	↓-0.3	干潮
2/20 22:40	42.0	0
2/20 22:50	42.1	↑0.1
2/20 23:00	42.5	↑0.4
2/20 23:10	43.0	↑0.5
2/20 23:20	43.7	↑0.7
2/20 23:30	44.6	↑0.9
2/20 23:40	45.7	↑1.1
2/20 23:50	47.0	↑1.3