20 (日)	02:30	05:41	12:44	20:38
	71cm	66cm	114cm	25cm
大潮 出 06:52 入 15:46 出 14:19 入 04:01

コイセボイ（北海道）2037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	60.8	↑1.3
12/20 00:10	62.0	↑1.2
12/20 00:20	63.1	↑1.1
12/20 00:30	64.2	↑1.1
12/20 00:40	65.2	↑1.0
12/20 00:50	66.1	↑0.9
12/20 01:00	67.0	↑0.9
12/20 01:10	67.7	↑0.7
12/20 01:20	68.3	↑0.6
12/20 01:30	68.9	↑0.6
12/20 01:40	69.3	↑0.4
12/20 01:50	69.7	↑0.4
12/20 02:00	70.0	↑0.3
12/20 02:10	70.2	↑0.2
12/20 02:20	70.3	↑0.1	満潮
12/20 02:30	70.3	0	満潮
12/20 02:40	70.3	0
12/20 02:50	70.1	↓-0.2
12/20 03:00	70.0	↓-0.1
12/20 03:10	69.7	↓-0.3
12/20 03:20	69.5	↓-0.2
12/20 03:30	69.1	↓-0.4
12/20 03:40	68.8	↓-0.3
12/20 03:50	68.4	↓-0.4
12/20 04:00	68.0	↓-0.4
12/20 04:10	67.6	↓-0.4
12/20 04:20	67.2	↓-0.4
12/20 04:30	66.9	↓-0.3
12/20 04:40	66.5	↓-0.4
12/20 04:50	66.2	↓-0.3
12/20 05:00	65.9	↓-0.3
12/20 05:10	65.7	↓-0.2
12/20 05:20	65.5	↓-0.2
12/20 05:30	65.4	↓-0.1
12/20 05:40	65.3	↓-0.1	干潮
12/20 05:50	65.4	↑0.1
12/20 06:00	65.5	↑0.1
12/20 06:10	65.7	↑0.2
12/20 06:20	66.0	↑0.3
12/20 06:30	66.4	↑0.4
12/20 06:40	66.9	↑0.5
12/20 06:50	67.5	↑0.6
12/20 07:00	68.3	↑0.8
12/20 07:10	69.1	↑0.8
12/20 07:20	70.0	↑0.9
12/20 07:30	71.0	↑1.0
12/20 07:40	72.2	↑1.2
12/20 07:50	73.4	↑1.2
12/20 08:00	74.7	↑1.3
12/20 08:10	76.1	↑1.4
12/20 08:20	77.6	↑1.5
12/20 08:30	79.2	↑1.6
12/20 08:40	80.8	↑1.6
12/20 08:50	82.5	↑1.7
12/20 09:00	84.3	↑1.8
12/20 09:10	86.1	↑1.8
12/20 09:20	87.9	↑1.8
12/20 09:30	89.7	↑1.8
12/20 09:40	91.6	↑1.9
12/20 09:50	93.5	↑1.9
12/20 10:00	95.3	↑1.8
12/20 10:10	97.1	↑1.8
12/20 10:20	98.9	↑1.8
12/20 10:30	100.6	↑1.7
12/20 10:40	102.3	↑1.7
12/20 10:50	103.9	↑1.6
12/20 11:00	105.4	↑1.5
12/20 11:10	106.9	↑1.5
12/20 11:20	108.2	↑1.3
12/20 11:30	109.4	↑1.2
12/20 11:40	110.4	↑1.0
12/20 11:50	111.4	↑1.0
12/20 12:00	112.2	↑0.8
12/20 12:10	112.8	↑0.6
12/20 12:20	113.3	↑0.5
12/20 12:30	113.6	↑0.3
12/20 12:40	113.7	↑0.1	満潮
12/20 12:50	113.7	0
12/20 13:00	113.4	↓-0.3
12/20 13:10	113.0	↓-0.4
12/20 13:20	112.5	↓-0.5
12/20 13:30	111.7	↓-0.8
12/20 13:40	110.7	↓-1.0
12/20 13:50	109.6	↓-1.1
12/20 14:00	108.3	↓-1.3
12/20 14:10	106.8	↓-1.5
12/20 14:20	105.1	↓-1.7
12/20 14:30	103.3	↓-1.8
12/20 14:40	101.3	↓-2.0
12/20 14:50	99.1	↓-2.2
12/20 15:00	96.9	↓-2.2
12/20 15:10	94.5	↓-2.4
12/20 15:20	91.9	↓-2.6
12/20 15:30	89.3	↓-2.6
12/20 15:40	86.6	↓-2.7
12/20 15:50	83.8	↓-2.8
12/20 16:00	80.9	↓-2.9
12/20 16:10	77.9	↓-3.0
12/20 16:20	75.0	↓-2.9
12/20 16:30	71.9	↓-3.1	最大潮位差
12/20 16:40	68.9	↓-3.0
12/20 16:50	65.9	↓-3.0
12/20 17:00	62.9	↓-3.0
12/20 17:10	59.9	↓-3.0
12/20 17:20	57.0	↓-2.9
12/20 17:30	54.1	↓-2.9
12/20 17:40	51.3	↓-2.8
12/20 17:50	48.6	↓-2.7
12/20 18:00	46.0	↓-2.6
12/20 18:10	43.5	↓-2.5
12/20 18:20	41.1	↓-2.4
12/20 18:30	38.8	↓-2.3
12/20 18:40	36.7	↓-2.1
12/20 18:50	34.7	↓-2.0
12/20 19:00	32.9	↓-1.8
12/20 19:10	31.3	↓-1.6
12/20 19:20	29.8	↓-1.5
12/20 19:30	28.5	↓-1.3
12/20 19:40	27.4	↓-1.1
12/20 19:50	26.4	↓-1.0
12/20 20:00	25.7	↓-0.7
12/20 20:10	25.1	↓-0.6
12/20 20:20	24.7	↓-0.4
12/20 20:30	24.5	↓-0.2	干潮
12/20 20:40	24.5	0
12/20 20:50	24.6	↑0.1
12/20 21:00	24.9	↑0.3
12/20 21:10	25.4	↑0.5
12/20 21:20	26.0	↑0.6
12/20 21:30	26.8	↑0.8
12/20 21:40	27.7	↑0.9
12/20 21:50	28.8	↑1.1
12/20 22:00	30.0	↑1.2
12/20 22:10	31.3	↑1.3
12/20 22:20	32.7	↑1.4
12/20 22:30	34.2	↑1.5
12/20 22:40	35.7	↑1.5
12/20 22:50	37.4	↑1.7
12/20 23:00	39.0	↑1.6
12/20 23:10	40.8	↑1.8
12/20 23:20	42.5	↑1.7
12/20 23:30	44.3	↑1.8
12/20 23:40	46.1	↑1.8
12/20 23:50	47.9	↑1.8