15 (火)	04:32	06:40	14:04	22:09
	68cm	66cm	128cm	13cm
大潮 出 06:49 入 15:45 出 07:16 入 16:06

コイセボイ（北海道）2020年12月15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
12/15 00:00	34.5	↑1.9
12/15 00:10	36.5	↑2.0
12/15 00:20	38.6	↑2.1
12/15 00:30	40.6	↑2.0
12/15 00:40	42.6	↑2.0
12/15 00:50	44.6	↑2.0
12/15 01:00	46.5	↑1.9
12/15 01:10	48.4	↑1.9
12/15 01:20	50.3	↑1.9
12/15 01:30	52.1	↑1.8
12/15 01:40	53.8	↑1.7
12/15 01:50	55.5	↑1.7
12/15 02:00	57.0	↑1.5
12/15 02:10	58.5	↑1.5
12/15 02:20	59.8	↑1.3
12/15 02:30	61.1	↑1.3
12/15 02:40	62.2	↑1.1
12/15 02:50	63.2	↑1.0
12/15 03:00	64.2	↑1.0
12/15 03:10	65.0	↑0.8
12/15 03:20	65.7	↑0.7
12/15 03:30	66.2	↑0.5
12/15 03:40	66.7	↑0.5
12/15 03:50	67.1	↑0.4
12/15 04:00	67.4	↑0.3
12/15 04:10	67.6	↑0.2
12/15 04:20	67.7	↑0.1
12/15 04:30	67.7	0	満潮
12/15 04:40	67.7	0
12/15 04:50	67.6	↓-0.1
12/15 05:00	67.5	↓-0.1
12/15 05:10	67.3	↓-0.2
12/15 05:20	67.1	↓-0.2
12/15 05:30	66.9	↓-0.2
12/15 05:40	66.7	↓-0.2
12/15 05:50	66.5	↓-0.2
12/15 06:00	66.3	↓-0.2
12/15 06:10	66.1	↓-0.2
12/15 06:20	66.0	↓-0.1
12/15 06:30	65.9	↓-0.1	干潮
12/15 06:40	65.9	0	干潮
12/15 06:50	65.9	0
12/15 07:00	66.0	↑0.1
12/15 07:10	66.2	↑0.2
12/15 07:20	66.5	↑0.3
12/15 07:30	66.9	↑0.4
12/15 07:40	67.4	↑0.5
12/15 07:50	68.1	↑0.7
12/15 08:00	68.8	↑0.7
12/15 08:10	69.7	↑0.9
12/15 08:20	70.6	↑0.9
12/15 08:30	71.7	↑1.1
12/15 08:40	72.9	↑1.2
12/15 08:50	74.3	↑1.4
12/15 09:00	75.7	↑1.4
12/15 09:10	77.3	↑1.6
12/15 09:20	79.0	↑1.7
12/15 09:30	80.8	↑1.8
12/15 09:40	82.7	↑1.9
12/15 09:50	84.6	↑1.9
12/15 10:00	86.7	↑2.1
12/15 10:10	88.8	↑2.1
12/15 10:20	91.0	↑2.2
12/15 10:30	93.2	↑2.2
12/15 10:40	95.5	↑2.3
12/15 10:50	97.8	↑2.3
12/15 11:00	100.1	↑2.3
12/15 11:10	102.4	↑2.3
12/15 11:20	104.7	↑2.3
12/15 11:30	107.0	↑2.3
12/15 11:40	109.2	↑2.2
12/15 11:50	111.3	↑2.1
12/15 12:00	113.4	↑2.1
12/15 12:10	115.4	↑2.0
12/15 12:20	117.3	↑1.9
12/15 12:30	119.1	↑1.8
12/15 12:40	120.7	↑1.6
12/15 12:50	122.2	↑1.5
12/15 13:00	123.5	↑1.3
12/15 13:10	124.7	↑1.2
12/15 13:20	125.7	↑1.0
12/15 13:30	126.5	↑0.8
12/15 13:40	127.1	↑0.6
12/15 13:50	127.5	↑0.4
12/15 14:00	127.6	↑0.1	満潮
12/15 14:10	127.6	0
12/15 14:20	127.3	↓-0.3
12/15 14:30	126.8	↓-0.5
12/15 14:40	126.1	↓-0.7
12/15 14:50	125.2	↓-0.9
12/15 15:00	124.0	↓-1.2
12/15 15:10	122.6	↓-1.4
12/15 15:20	120.9	↓-1.7
12/15 15:30	119.1	↓-1.8
12/15 15:40	117.0	↓-2.1
12/15 15:50	114.8	↓-2.2
12/15 16:00	112.3	↓-2.5
12/15 16:10	109.6	↓-2.7
12/15 16:20	106.8	↓-2.8
12/15 16:30	103.8	↓-3.0
12/15 16:40	100.7	↓-3.1
12/15 16:50	97.4	↓-3.3
12/15 17:00	94.0	↓-3.4
12/15 17:10	90.4	↓-3.6
12/15 17:20	86.8	↓-3.6
12/15 17:30	83.1	↓-3.7
12/15 17:40	79.4	↓-3.7
12/15 17:50	75.6	↓-3.8
12/15 18:00	71.8	↓-3.8
12/15 18:10	68.0	↓-3.8
12/15 18:20	64.1	↓-3.9	最大潮位差
12/15 18:30	60.4	↓-3.7
12/15 18:40	56.6	↓-3.8
12/15 18:50	53.0	↓-3.6
12/15 19:00	49.4	↓-3.6
12/15 19:10	45.9	↓-3.5
12/15 19:20	42.5	↓-3.4
12/15 19:30	39.2	↓-3.3
12/15 19:40	36.1	↓-3.1
12/15 19:50	33.1	↓-3.0
12/15 20:00	30.3	↓-2.8
12/15 20:10	27.7	↓-2.6
12/15 20:20	25.3	↓-2.4
12/15 20:30	23.1	↓-2.2
12/15 20:40	21.0	↓-2.1
12/15 20:50	19.2	↓-1.8
12/15 21:00	17.6	↓-1.6
12/15 21:10	16.2	↓-1.4
12/15 21:20	15.0	↓-1.2
12/15 21:30	14.1	↓-0.9
12/15 21:40	13.4	↓-0.7
12/15 21:50	12.9	↓-0.5
12/15 22:00	12.6	↓-0.3	干潮
12/15 22:10	12.5	↓-0.1
12/15 22:20	12.6	↑0.1
12/15 22:30	13.0	↑0.4
12/15 22:40	13.5	↑0.5
12/15 22:50	14.2	↑0.7
12/15 23:00	15.1	↑0.9
12/15 23:10	16.2	↑1.1
12/15 23:20	17.4	↑1.2
12/15 23:30	18.8	↑1.4
12/15 23:40	20.3	↑1.5
12/15 23:50	21.9	↑1.6