20 (火)	05:19	10:16	16:40	23:52
	79cm	52cm	109cm	27cm
中潮 出 05:06 入 17:24 出 08:54 入 19:06

コイセボイ（北海道）2050年09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
9/20 00:00	28.2	↑1.1
9/20 00:10	29.4	↑1.2
9/20 00:20	30.8	↑1.4
9/20 00:30	32.3	↑1.5
9/20 00:40	34.0	↑1.7
9/20 00:50	35.8	↑1.8
9/20 01:00	37.7	↑1.9
9/20 01:10	39.7	↑2.0
9/20 01:20	41.8	↑2.1
9/20 01:30	43.9	↑2.1
9/20 01:40	46.2	↑2.3
9/20 01:50	48.4	↑2.2
9/20 02:00	50.7	↑2.3
9/20 02:10	52.9	↑2.2
9/20 02:20	55.2	↑2.3
9/20 02:30	57.4	↑2.2
9/20 02:40	59.6	↑2.2
9/20 02:50	61.7	↑2.1
9/20 03:00	63.8	↑2.1
9/20 03:10	65.7	↑1.9
9/20 03:20	67.6	↑1.9
9/20 03:30	69.3	↑1.7
9/20 03:40	70.9	↑1.6
9/20 03:50	72.4	↑1.5
9/20 04:00	73.7	↑1.3
9/20 04:10	74.9	↑1.2
9/20 04:20	76.0	↑1.1
9/20 04:30	76.8	↑0.8
9/20 04:40	77.6	↑0.8
9/20 04:50	78.1	↑0.5
9/20 05:00	78.5	↑0.4
9/20 05:10	78.7	↑0.2	満潮
9/20 05:20	78.7	0
9/20 05:30	78.6	↓-0.1
9/20 05:40	78.3	↓-0.3
9/20 05:50	77.9	↓-0.4
9/20 06:00	77.3	↓-0.6
9/20 06:10	76.6	↓-0.7
9/20 06:20	75.8	↓-0.8
9/20 06:30	74.8	↓-1.0
9/20 06:40	73.8	↓-1.0
9/20 06:50	72.6	↓-1.2
9/20 07:00	71.4	↓-1.2
9/20 07:10	70.1	↓-1.3
9/20 07:20	68.8	↓-1.3
9/20 07:30	67.4	↓-1.4
9/20 07:40	66.0	↓-1.4
9/20 07:50	64.5	↓-1.5
9/20 08:00	63.1	↓-1.4
9/20 08:10	61.7	↓-1.4
9/20 08:20	60.4	↓-1.3
9/20 08:30	59.0	↓-1.4
9/20 08:40	57.8	↓-1.2
9/20 08:50	56.6	↓-1.2
9/20 09:00	55.5	↓-1.1
9/20 09:10	54.6	↓-0.9
9/20 09:20	53.7	↓-0.9
9/20 09:30	52.9	↓-0.8
9/20 09:40	52.3	↓-0.6
9/20 09:50	51.9	↓-0.4
9/20 10:00	51.5	↓-0.4
9/20 10:10	51.4	↓-0.1	干潮
9/20 10:20	51.4	0
9/20 10:30	51.5	↑0.1
9/20 10:40	51.9	↑0.4
9/20 10:50	52.4	↑0.5
9/20 11:00	53.1	↑0.7
9/20 11:10	53.9	↑0.8
9/20 11:20	54.9	↑1.0
9/20 11:30	56.1	↑1.2
9/20 11:40	57.4	↑1.3
9/20 11:50	58.9	↑1.5
9/20 12:00	60.5	↑1.6
9/20 12:10	62.2	↑1.7
9/20 12:20	64.1	↑1.9
9/20 12:30	66.0	↑1.9
9/20 12:40	68.1	↑2.1
9/20 12:50	70.3	↑2.2
9/20 13:00	72.5	↑2.2
9/20 13:10	74.8	↑2.3
9/20 13:20	77.1	↑2.3
9/20 13:30	79.4	↑2.3
9/20 13:40	81.8	↑2.4
9/20 13:50	84.2	↑2.4
9/20 14:00	86.5	↑2.3
9/20 14:10	88.8	↑2.3
9/20 14:20	91.0	↑2.2
9/20 14:30	93.2	↑2.2
9/20 14:40	95.3	↑2.1
9/20 14:50	97.2	↑1.9
9/20 15:00	99.1	↑1.9
9/20 15:10	100.8	↑1.7
9/20 15:20	102.4	↑1.6
9/20 15:30	103.9	↑1.5
9/20 15:40	105.1	↑1.2
9/20 15:50	106.2	↑1.1
9/20 16:00	107.1	↑0.9
9/20 16:10	107.8	↑0.7
9/20 16:20	108.3	↑0.5
9/20 16:30	108.6	↑0.3	満潮
9/20 16:40	108.7	↑0.1	満潮
9/20 16:50	108.6	↓-0.1
9/20 17:00	108.2	↓-0.4
9/20 17:10	107.6	↓-0.6
9/20 17:20	106.9	↓-0.7
9/20 17:30	105.9	↓-1.0
9/20 17:40	104.7	↓-1.2
9/20 17:50	103.3	↓-1.4
9/20 18:00	101.7	↓-1.6
9/20 18:10	99.9	↓-1.8
9/20 18:20	97.9	↓-2.0
9/20 18:30	95.8	↓-2.1
9/20 18:40	93.5	↓-2.3
9/20 18:50	91.1	↓-2.4
9/20 19:00	88.5	↓-2.6
9/20 19:10	85.9	↓-2.6
9/20 19:20	83.1	↓-2.8
9/20 19:30	80.2	↓-2.9
9/20 19:40	77.3	↓-2.9
9/20 19:50	74.3	↓-3.0
9/20 20:00	71.3	↓-3.0
9/20 20:10	68.3	↓-3.0
9/20 20:20	65.2	↓-3.1	最大潮位差
9/20 20:30	62.2	↓-3.0
9/20 20:40	59.2	↓-3.0
9/20 20:50	56.2	↓-3.0
9/20 21:00	53.4	↓-2.8
9/20 21:10	50.6	↓-2.8
9/20 21:20	47.9	↓-2.7
9/20 21:30	45.3	↓-2.6
9/20 21:40	42.8	↓-2.5
9/20 21:50	40.5	↓-2.3
9/20 22:00	38.3	↓-2.2
9/20 22:10	36.2	↓-2.1
9/20 22:20	34.4	↓-1.8
9/20 22:30	32.7	↓-1.7
9/20 22:40	31.2	↓-1.5
9/20 22:50	29.9	↓-1.3
9/20 23:00	28.8	↓-1.1
9/20 23:10	27.9	↓-0.9
9/20 23:20	27.1	↓-0.8
9/20 23:30	26.6	↓-0.5
9/20 23:40	26.3	↓-0.3
9/20 23:50	26.2	↓-0.1	干潮