20 (木)	05:46	12:57	18:44	23:18
	105cm	36cm	67cm	52cm
小潮 出 06:14 入 16:57 出 08:36 入 23:47

コイセボイ（北海道）2048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	51.6	↑0.6
2/20 00:10	52.4	↑0.8
2/20 00:20	53.4	↑1.0
2/20 00:30	54.5	↑1.1
2/20 00:40	55.7	↑1.2
2/20 00:50	57.1	↑1.4
2/20 01:00	58.6	↑1.5
2/20 01:10	60.3	↑1.7
2/20 01:20	62.0	↑1.7
2/20 01:30	63.8	↑1.8
2/20 01:40	65.8	↑2.0
2/20 01:50	67.8	↑2.0
2/20 02:00	69.8	↑2.0
2/20 02:10	72.0	↑2.2
2/20 02:20	74.1	↑2.1
2/20 02:30	76.3	↑2.2
2/20 02:40	78.5	↑2.2
2/20 02:50	80.6	↑2.1
2/20 03:00	82.8	↑2.2
2/20 03:10	84.9	↑2.1
2/20 03:20	87.0	↑2.1
2/20 03:30	89.0	↑2.0
2/20 03:40	91.0	↑2.0
2/20 03:50	92.8	↑1.8
2/20 04:00	94.6	↑1.8
2/20 04:10	96.2	↑1.6
2/20 04:20	97.7	↑1.5
2/20 04:30	99.1	↑1.4
2/20 04:40	100.3	↑1.2
2/20 04:50	101.3	↑1.0
2/20 05:00	102.2	↑0.9
2/20 05:10	103.0	↑0.8
2/20 05:20	103.5	↑0.5
2/20 05:30	103.9	↑0.4
2/20 05:40	104.1	↑0.2	満潮
2/20 05:50	104.1	0
2/20 06:00	103.9	↓-0.2
2/20 06:10	103.5	↓-0.4
2/20 06:20	103.0	↓-0.5
2/20 06:30	102.2	↓-0.8
2/20 06:40	101.3	↓-0.9
2/20 06:50	100.2	↓-1.1
2/20 07:00	99.0	↓-1.2
2/20 07:10	97.5	↓-1.5
2/20 07:20	95.9	↓-1.6
2/20 07:30	94.2	↓-1.7
2/20 07:40	92.3	↓-1.9
2/20 07:50	90.3	↓-2.0
2/20 08:00	88.2	↓-2.1
2/20 08:10	86.0	↓-2.2
2/20 08:20	83.7	↓-2.3
2/20 08:30	81.4	↓-2.3
2/20 08:40	78.9	↓-2.5
2/20 08:50	76.4	↓-2.5
2/20 09:00	73.9	↓-2.5
2/20 09:10	71.4	↓-2.5
2/20 09:20	68.9	↓-2.5
2/20 09:30	66.3	↓-2.6	最大潮位差
2/20 09:40	63.8	↓-2.5
2/20 09:50	61.4	↓-2.4
2/20 10:00	58.9	↓-2.5
2/20 10:10	56.6	↓-2.3
2/20 10:20	54.3	↓-2.3
2/20 10:30	52.1	↓-2.2
2/20 10:40	50.0	↓-2.1
2/20 10:50	48.1	↓-1.9
2/20 11:00	46.2	↓-1.9
2/20 11:10	44.5	↓-1.7
2/20 11:20	42.9	↓-1.6
2/20 11:30	41.5	↓-1.4
2/20 11:40	40.2	↓-1.3
2/20 11:50	39.0	↓-1.2
2/20 12:00	38.0	↓-1.0
2/20 12:10	37.2	↓-0.8
2/20 12:20	36.5	↓-0.7
2/20 12:30	36.0	↓-0.5
2/20 12:40	35.7	↓-0.3
2/20 12:50	35.5	↓-0.2	干潮
2/20 13:00	35.5	0
2/20 13:10	35.6	↑0.1
2/20 13:20	35.9	↑0.3
2/20 13:30	36.3	↑0.4
2/20 13:40	36.9	↑0.6
2/20 13:50	37.6	↑0.7
2/20 14:00	38.4	↑0.8
2/20 14:10	39.3	↑0.9
2/20 14:20	40.3	↑1.0
2/20 14:30	41.4	↑1.1
2/20 14:40	42.6	↑1.2
2/20 14:50	43.9	↑1.3
2/20 15:00	45.2	↑1.3
2/20 15:10	46.5	↑1.3
2/20 15:20	47.9	↑1.4
2/20 15:30	49.3	↑1.4
2/20 15:40	50.7	↑1.4
2/20 15:50	52.1	↑1.4
2/20 16:00	53.5	↑1.4
2/20 16:10	54.9	↑1.4
2/20 16:20	56.2	↑1.3
2/20 16:30	57.5	↑1.3
2/20 16:40	58.8	↑1.3
2/20 16:50	59.9	↑1.1
2/20 17:00	61.0	↑1.1
2/20 17:10	62.0	↑1.0
2/20 17:20	63.0	↑1.0
2/20 17:30	63.8	↑0.8
2/20 17:40	64.5	↑0.7
2/20 17:50	65.2	↑0.7
2/20 18:00	65.7	↑0.5
2/20 18:10	66.1	↑0.4
2/20 18:20	66.4	↑0.3
2/20 18:30	66.6	↑0.2
2/20 18:40	66.7	↑0.1	満潮
2/20 18:50	66.7	0
2/20 19:00	66.6	↓-0.1
2/20 19:10	66.4	↓-0.2
2/20 19:20	66.0	↓-0.4
2/20 19:30	65.6	↓-0.4
2/20 19:40	65.1	↓-0.5
2/20 19:50	64.6	↓-0.5
2/20 20:00	63.9	↓-0.7
2/20 20:10	63.2	↓-0.7
2/20 20:20	62.5	↓-0.7
2/20 20:30	61.7	↓-0.8
2/20 20:40	60.8	↓-0.9
2/20 20:50	60.0	↓-0.8
2/20 21:00	59.1	↓-0.9
2/20 21:10	58.2	↓-0.9
2/20 21:20	57.3	↓-0.9
2/20 21:30	56.5	↓-0.8
2/20 21:40	55.6	↓-0.9
2/20 21:50	54.9	↓-0.7
2/20 22:00	54.1	↓-0.8
2/20 22:10	53.4	↓-0.7
2/20 22:20	52.8	↓-0.6
2/20 22:30	52.3	↓-0.5
2/20 22:40	51.9	↓-0.4
2/20 22:50	51.5	↓-0.4
2/20 23:00	51.3	↓-0.2
2/20 23:10	51.2	↓-0.1	干潮
2/20 23:20	51.1	↓-0.1
2/20 23:30	51.2	↑0.1
2/20 23:40	51.5	↑0.3
2/20 23:50	51.8	↑0.3