20 (日)	07:37	00:52	17:31	09:54
	64cm	25cm	116cm	62cm
中潮 出 06:52 入 15:46 出 11:05 入 21:40

コイセボイ（北海道）2020年12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
12/20 00:00	27.2	↓-1.0
12/20 00:10	26.4	↓-0.8
12/20 00:20	25.8	↓-0.6
12/20 00:30	25.3	↓-0.5
12/20 00:40	25.1	↓-0.2
12/20 00:50	25.0	↓-0.1	干潮
12/20 01:00	25.0	0
12/20 01:10	25.3	↑0.3
12/20 01:20	25.7	↑0.4
12/20 01:30	26.2	↑0.5
12/20 01:40	26.9	↑0.7
12/20 01:50	27.7	↑0.8
12/20 02:00	28.7	↑1.0
12/20 02:10	29.7	↑1.0
12/20 02:20	30.9	↑1.2
12/20 02:30	32.1	↑1.2
12/20 02:40	33.5	↑1.4
12/20 02:50	34.9	↑1.4
12/20 03:00	36.3	↑1.4
12/20 03:10	37.8	↑1.5
12/20 03:20	39.3	↑1.5
12/20 03:30	40.9	↑1.6
12/20 03:40	42.5	↑1.6
12/20 03:50	44.0	↑1.5
12/20 04:00	45.6	↑1.6
12/20 04:10	47.1	↑1.5
12/20 04:20	48.6	↑1.5
12/20 04:30	50.1	↑1.5
12/20 04:40	51.5	↑1.4
12/20 04:50	52.8	↑1.3
12/20 05:00	54.1	↑1.3
12/20 05:10	55.3	↑1.2
12/20 05:20	56.5	↑1.2
12/20 05:30	57.5	↑1.0
12/20 05:40	58.5	↑1.0
12/20 05:50	59.4	↑0.9
12/20 06:00	60.2	↑0.8
12/20 06:10	60.9	↑0.7
12/20 06:20	61.5	↑0.6
12/20 06:30	62.1	↑0.6
12/20 06:40	62.5	↑0.4
12/20 06:50	62.9	↑0.4
12/20 07:00	63.2	↑0.3
12/20 07:10	63.4	↑0.2
12/20 07:20	63.5	↑0.1
12/20 07:30	63.6	↑0.1	満潮
12/20 07:40	63.6	0
12/20 07:50	63.5	↓-0.1
12/20 08:00	63.4	↓-0.1
12/20 08:10	63.3	↓-0.1
12/20 08:20	63.1	↓-0.2
12/20 08:30	62.9	↓-0.2
12/20 08:40	62.7	↓-0.2
12/20 08:50	62.5	↓-0.2
12/20 09:00	62.3	↓-0.2
12/20 09:10	62.1	↓-0.2
12/20 09:20	62.0	↓-0.1
12/20 09:30	61.8	↓-0.2
12/20 09:40	61.7	↓-0.1
12/20 09:50	61.7	0	干潮
12/20 10:00	61.7	0
12/20 10:10	61.8	↑0.1
12/20 10:20	61.9	↑0.1
12/20 10:30	62.2	↑0.3
12/20 10:40	62.5	↑0.3
12/20 10:50	62.9	↑0.4
12/20 11:00	63.3	↑0.4
12/20 11:10	63.9	↑0.6
12/20 11:20	64.6	↑0.7
12/20 11:30	65.4	↑0.8
12/20 11:40	66.3	↑0.9
12/20 11:50	67.3	↑1.0
12/20 12:00	68.4	↑1.1
12/20 12:10	69.5	↑1.1
12/20 12:20	70.8	↑1.3
12/20 12:30	72.2	↑1.4
12/20 12:40	73.7	↑1.5
12/20 12:50	75.2	↑1.5
12/20 13:00	76.9	↑1.7
12/20 13:10	78.6	↑1.7
12/20 13:20	80.3	↑1.7
12/20 13:30	82.1	↑1.8
12/20 13:40	84.0	↑1.9
12/20 13:50	85.9	↑1.9
12/20 14:00	87.9	↑2.0
12/20 14:10	89.8	↑1.9
12/20 14:20	91.8	↑2.0
12/20 14:30	93.7	↑1.9
12/20 14:40	95.7	↑2.0
12/20 14:50	97.6	↑1.9
12/20 15:00	99.5	↑1.9
12/20 15:10	101.3	↑1.8
12/20 15:20	103.0	↑1.7
12/20 15:30	104.7	↑1.7
12/20 15:40	106.3	↑1.6
12/20 15:50	107.9	↑1.6
12/20 16:00	109.3	↑1.4
12/20 16:10	110.5	↑1.2
12/20 16:20	111.7	↑1.2
12/20 16:30	112.7	↑1.0
12/20 16:40	113.6	↑0.9
12/20 16:50	114.4	↑0.8
12/20 17:00	114.9	↑0.5
12/20 17:10	115.4	↑0.5
12/20 17:20	115.6	↑0.2
12/20 17:30	115.7	↑0.1	満潮
12/20 17:40	115.6	↓-0.1
12/20 17:50	115.3	↓-0.3
12/20 18:00	114.9	↓-0.4
12/20 18:10	114.3	↓-0.6
12/20 18:20	113.5	↓-0.8
12/20 18:30	112.5	↓-1.0
12/20 18:40	111.4	↓-1.1
12/20 18:50	110.1	↓-1.3
12/20 19:00	108.6	↓-1.5
12/20 19:10	107.0	↓-1.6
12/20 19:20	105.2	↓-1.8
12/20 19:30	103.3	↓-1.9
12/20 19:40	101.2	↓-2.1
12/20 19:50	99.0	↓-2.2
12/20 20:00	96.7	↓-2.3
12/20 20:10	94.3	↓-2.4
12/20 20:20	91.9	↓-2.4
12/20 20:30	89.3	↓-2.6
12/20 20:40	86.6	↓-2.7
12/20 20:50	83.9	↓-2.7
12/20 21:00	81.2	↓-2.7
12/20 21:10	78.4	↓-2.8	最大潮位差
12/20 21:20	75.6	↓-2.8	最大潮位差
12/20 21:30	72.9	↓-2.7
12/20 21:40	70.1	↓-2.8	最大潮位差
12/20 21:50	67.3	↓-2.8	最大潮位差
12/20 22:00	64.6	↓-2.7
12/20 22:10	61.9	↓-2.7
12/20 22:20	59.3	↓-2.6
12/20 22:30	56.7	↓-2.6
12/20 22:40	54.3	↓-2.4
12/20 22:50	51.9	↓-2.4
12/20 23:00	49.6	↓-2.3
12/20 23:10	47.5	↓-2.1
12/20 23:20	45.4	↓-2.1
12/20 23:30	43.5	↓-1.9
12/20 23:40	41.7	↓-1.8
12/20 23:50	40.1	↓-1.6