20 (月)	04:19	07:16	14:30	22:11
	63cm	58cm	120cm	23cm
大潮 出 06:14 入 16:57 出 06:34 入 16:41

コイセボイ（北海道）2023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	32.5	↑1.7
2/20 00:10	34.2	↑1.7
2/20 00:20	36.0	↑1.8
2/20 00:30	37.8	↑1.8
2/20 00:40	39.6	↑1.8
2/20 00:50	41.4	↑1.8
2/20 01:00	43.1	↑1.7
2/20 01:10	44.9	↑1.8
2/20 01:20	46.6	↑1.7
2/20 01:30	48.2	↑1.6
2/20 01:40	49.8	↑1.6
2/20 01:50	51.3	↑1.5
2/20 02:00	52.8	↑1.5
2/20 02:10	54.1	↑1.3
2/20 02:20	55.4	↑1.3
2/20 02:30	56.6	↑1.2
2/20 02:40	57.6	↑1.0
2/20 02:50	58.6	↑1.0
2/20 03:00	59.4	↑0.8
2/20 03:10	60.2	↑0.8
2/20 03:20	60.8	↑0.6
2/20 03:30	61.3	↑0.5
2/20 03:40	61.7	↑0.4
2/20 03:50	62.0	↑0.3
2/20 04:00	62.3	↑0.3
2/20 04:10	62.4	↑0.1	満潮
2/20 04:20	62.4	0
2/20 04:30	62.3	↓-0.1
2/20 04:40	62.2	↓-0.1
2/20 04:50	62.0	↓-0.2
2/20 05:00	61.7	↓-0.3
2/20 05:10	61.4	↓-0.3
2/20 05:20	61.1	↓-0.3
2/20 05:30	60.7	↓-0.4
2/20 05:40	60.3	↓-0.4
2/20 05:50	59.9	↓-0.4
2/20 06:00	59.5	↓-0.4
2/20 06:10	59.1	↓-0.4
2/20 06:20	58.7	↓-0.4
2/20 06:30	58.4	↓-0.3
2/20 06:40	58.1	↓-0.3
2/20 06:50	57.8	↓-0.3
2/20 07:00	57.7	↓-0.1
2/20 07:10	57.6	↓-0.1	干潮
2/20 07:20	57.6	0
2/20 07:30	57.7	↑0.1
2/20 07:40	57.9	↑0.2
2/20 07:50	58.2	↑0.3
2/20 08:00	58.6	↑0.4
2/20 08:10	59.1	↑0.5
2/20 08:20	59.8	↑0.7
2/20 08:30	60.6	↑0.8
2/20 08:40	61.5	↑0.9
2/20 08:50	62.5	↑1.0
2/20 09:00	63.7	↑1.2
2/20 09:10	64.9	↑1.2
2/20 09:20	66.4	↑1.5
2/20 09:30	67.9	↑1.5
2/20 09:40	69.5	↑1.6
2/20 09:50	71.3	↑1.8
2/20 10:00	73.1	↑1.8
2/20 10:10	75.1	↑2.0
2/20 10:20	77.1	↑2.0
2/20 10:30	79.2	↑2.1
2/20 10:40	81.4	↑2.2
2/20 10:50	83.6	↑2.2
2/20 11:00	85.9	↑2.3
2/20 11:10	88.2	↑2.3
2/20 11:20	90.5	↑2.3
2/20 11:30	92.8	↑2.3
2/20 11:40	95.2	↑2.4
2/20 11:50	97.4	↑2.2
2/20 12:00	99.7	↑2.3
2/20 12:10	101.9	↑2.2
2/20 12:20	104.0	↑2.1
2/20 12:30	106.0	↑2.0
2/20 12:40	107.9	↑1.9
2/20 12:50	109.7	↑1.8
2/20 13:00	111.4	↑1.7
2/20 13:10	113.0	↑1.6
2/20 13:20	114.4	↑1.4
2/20 13:30	115.6	↑1.2
2/20 13:40	116.7	↑1.1
2/20 13:50	117.6	↑0.9
2/20 14:00	118.3	↑0.7
2/20 14:10	118.8	↑0.5
2/20 14:20	119.1	↑0.3	満潮
2/20 14:30	119.2	↑0.1	満潮
2/20 14:40	119.1	↓-0.1
2/20 14:50	118.7	↓-0.4
2/20 15:00	118.2	↓-0.5
2/20 15:10	117.4	↓-0.8
2/20 15:20	116.4	↓-1.0
2/20 15:30	115.2	↓-1.2
2/20 15:40	113.8	↓-1.4
2/20 15:50	112.2	↓-1.6
2/20 16:00	110.3	↓-1.9
2/20 16:10	108.3	↓-2.0
2/20 16:20	106.1	↓-2.2
2/20 16:30	103.8	↓-2.3
2/20 16:40	101.2	↓-2.6
2/20 16:50	98.5	↓-2.7
2/20 17:00	95.7	↓-2.8
2/20 17:10	92.8	↓-2.9
2/20 17:20	89.7	↓-3.1
2/20 17:30	86.6	↓-3.1
2/20 17:40	83.3	↓-3.3
2/20 17:50	80.1	↓-3.2
2/20 18:00	76.7	↓-3.4	最大潮位差
2/20 18:10	73.4	↓-3.3
2/20 18:20	70.0	↓-3.4	最大潮位差
2/20 18:30	66.6	↓-3.4	最大潮位差
2/20 18:40	63.3	↓-3.3
2/20 18:50	59.9	↓-3.4	最大潮位差
2/20 19:00	56.7	↓-3.2
2/20 19:10	53.5	↓-3.2
2/20 19:20	50.4	↓-3.1
2/20 19:30	47.4	↓-3.0
2/20 19:40	44.5	↓-2.9
2/20 19:50	41.8	↓-2.7
2/20 20:00	39.2	↓-2.6
2/20 20:10	36.7	↓-2.5
2/20 20:20	34.4	↓-2.3
2/20 20:30	32.3	↓-2.1
2/20 20:40	30.4	↓-1.9
2/20 20:50	28.7	↓-1.7
2/20 21:00	27.1	↓-1.6
2/20 21:10	25.8	↓-1.3
2/20 21:20	24.6	↓-1.2
2/20 21:30	23.7	↓-0.9
2/20 21:40	23.0	↓-0.7
2/20 21:50	22.5	↓-0.5
2/20 22:00	22.2	↓-0.3
2/20 22:10	22.1	↓-0.1	干潮
2/20 22:20	22.2	↑0.1
2/20 22:30	22.5	↑0.3
2/20 22:40	23.0	↑0.5
2/20 22:50	23.6	↑0.6
2/20 23:00	24.4	↑0.8
2/20 23:10	25.4	↑1.0
2/20 23:20	26.5	↑1.1
2/20 23:30	27.8	↑1.3
2/20 23:40	29.2	↑1.4
2/20 23:50	30.7	↑1.5