21 (木)	14:56	07:53	-	17:39
	66cm	30cm	-	64cm
中潮 出 05:08 入 17:21 出 16:31 入 01:52

コイセボイ（北海道）2056年09月21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
9/21 00:00	101.0	↓-0.3
9/21 00:10	100.5	↓-0.5
9/21 00:20	100.0	↓-0.5
9/21 00:30	99.3	↓-0.7
9/21 00:40	98.4	↓-0.9
9/21 00:50	97.5	↓-0.9
9/21 01:00	96.4	↓-1.1
9/21 01:10	95.3	↓-1.1
9/21 01:20	94.0	↓-1.3
9/21 01:30	92.5	↓-1.5
9/21 01:40	91.0	↓-1.5
9/21 01:50	89.4	↓-1.6
9/21 02:00	87.6	↓-1.8
9/21 02:10	85.8	↓-1.8
9/21 02:20	83.9	↓-1.9
9/21 02:30	81.9	↓-2.0
9/21 02:40	79.8	↓-2.1
9/21 02:50	77.7	↓-2.1
9/21 03:00	75.5	↓-2.2
9/21 03:10	73.2	↓-2.3
9/21 03:20	71.0	↓-2.2
9/21 03:30	68.7	↓-2.3
9/21 03:40	66.4	↓-2.3
9/21 03:50	64.0	↓-2.4	最大潮位差
9/21 04:00	61.7	↓-2.3
9/21 04:10	59.4	↓-2.3
9/21 04:20	57.1	↓-2.3
9/21 04:30	54.9	↓-2.2
9/21 04:40	52.7	↓-2.2
9/21 04:50	50.5	↓-2.2
9/21 05:00	48.4	↓-2.1
9/21 05:10	46.4	↓-2.0
9/21 05:20	44.5	↓-1.9
9/21 05:30	42.6	↓-1.9
9/21 05:40	40.9	↓-1.7
9/21 05:50	39.2	↓-1.7
9/21 06:00	37.7	↓-1.5
9/21 06:10	36.3	↓-1.4
9/21 06:20	35.0	↓-1.3
9/21 06:30	33.8	↓-1.2
9/21 06:40	32.8	↓-1.0
9/21 06:50	31.8	↓-1.0
9/21 07:00	31.1	↓-0.7
9/21 07:10	30.4	↓-0.7
9/21 07:20	29.9	↓-0.5
9/21 07:30	29.6	↓-0.3
9/21 07:40	29.3	↓-0.3
9/21 07:50	29.3	0	干潮
9/21 08:00	29.3	0
9/21 08:10	29.5	↑0.2
9/21 08:20	29.8	↑0.3
9/21 08:30	30.2	↑0.4
9/21 08:40	30.8	↑0.6
9/21 08:50	31.4	↑0.6
9/21 09:00	32.2	↑0.8
9/21 09:10	33.0	↑0.8
9/21 09:20	34.0	↑1.0
9/21 09:30	35.0	↑1.0
9/21 09:40	36.1	↑1.1
9/21 09:50	37.3	↑1.2
9/21 10:00	38.5	↑1.2
9/21 10:10	39.8	↑1.3
9/21 10:20	41.2	↑1.4
9/21 10:30	42.5	↑1.3
9/21 10:40	43.9	↑1.4
9/21 10:50	45.3	↑1.4
9/21 11:00	46.7	↑1.4
9/21 11:10	48.1	↑1.4
9/21 11:20	49.5	↑1.4
9/21 11:30	50.8	↑1.3
9/21 11:40	52.2	↑1.4
9/21 11:50	53.5	↑1.3
9/21 12:00	54.7	↑1.2
9/21 12:10	55.9	↑1.2
9/21 12:20	57.1	↑1.2
9/21 12:30	58.2	↑1.1
9/21 12:40	59.2	↑1.0
9/21 12:50	60.2	↑1.0
9/21 13:00	61.0	↑0.8
9/21 13:10	61.8	↑0.8
9/21 13:20	62.6	↑0.8
9/21 13:30	63.2	↑0.6
9/21 13:40	63.8	↑0.6
9/21 13:50	64.3	↑0.5
9/21 14:00	64.7	↑0.4
9/21 14:10	65.0	↑0.3
9/21 14:20	65.3	↑0.3
9/21 14:30	65.5	↑0.2
9/21 14:40	65.6	↑0.1
9/21 14:50	65.7	↑0.1	満潮
9/21 15:00	65.6	↓-0.1
9/21 15:10	65.6	0
9/21 15:20	65.5	↓-0.1
9/21 15:30	65.3	↓-0.2
9/21 15:40	65.2	↓-0.1
9/21 15:50	65.0	↓-0.2
9/21 16:00	64.7	↓-0.3
9/21 16:10	64.5	↓-0.2
9/21 16:20	64.3	↓-0.2
9/21 16:30	64.0	↓-0.3
9/21 16:40	63.8	↓-0.2
9/21 16:50	63.6	↓-0.2
9/21 17:00	63.4	↓-0.2
9/21 17:10	63.2	↓-0.2
9/21 17:20	63.1	↓-0.1
9/21 17:30	63.0	↓-0.1	干潮
9/21 17:40	63.0	0
9/21 17:50	63.1	↑0.1
9/21 18:00	63.2	↑0.1
9/21 18:10	63.3	↑0.1
9/21 18:20	63.6	↑0.3
9/21 18:30	63.9	↑0.3
9/21 18:40	64.3	↑0.4
9/21 18:50	64.8	↑0.5
9/21 19:00	65.4	↑0.6
9/21 19:10	66.0	↑0.6
9/21 19:20	66.8	↑0.8
9/21 19:30	67.6	↑0.8
9/21 19:40	68.5	↑0.9
9/21 19:50	69.5	↑1.0
9/21 20:00	70.6	↑1.1
9/21 20:10	71.8	↑1.2
9/21 20:20	73.0	↑1.2
9/21 20:30	74.3	↑1.3
9/21 20:40	75.6	↑1.3
9/21 20:50	77.0	↑1.4
9/21 21:00	78.5	↑1.5
9/21 21:10	79.9	↑1.4
9/21 21:20	81.4	↑1.5
9/21 21:30	83.0	↑1.6
9/21 21:40	84.5	↑1.5
9/21 21:50	86.1	↑1.6
9/21 22:00	87.6	↑1.5
9/21 22:10	89.1	↑1.5
9/21 22:20	90.6	↑1.5
9/21 22:30	92.1	↑1.5
9/21 22:40	93.5	↑1.4
9/21 22:50	94.8	↑1.3
9/21 23:00	96.1	↑1.3
9/21 23:10	97.3	↑1.2
9/21 23:20	98.4	↑1.1
9/21 23:30	99.5	↑1.1
9/21 23:40	100.4	↑0.9
9/21 23:50	101.2	↑0.8