20 (日)	05:07	05:32	13:51	22:02
	65cm	65cm	129cm	16cm
大潮 出 06:52 入 15:46 出 15:47 入 06:36

コイセボイ（北海道）2048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	34.6	↑1.8
12/20 00:10	36.4	↑1.8
12/20 00:20	38.2	↑1.8
12/20 00:30	40.0	↑1.8
12/20 00:40	41.8	↑1.8
12/20 00:50	43.6	↑1.8
12/20 01:00	45.3	↑1.7
12/20 01:10	47.0	↑1.7
12/20 01:20	48.7	↑1.7
12/20 01:30	50.2	↑1.5
12/20 01:40	51.8	↑1.6
12/20 01:50	53.2	↑1.4
12/20 02:00	54.6	↑1.4
12/20 02:10	55.9	↑1.3
12/20 02:20	57.0	↑1.1
12/20 02:30	58.1	↑1.1
12/20 02:40	59.1	↑1.0
12/20 02:50	60.1	↑1.0
12/20 03:00	60.9	↑0.8
12/20 03:10	61.6	↑0.7
12/20 03:20	62.2	↑0.6
12/20 03:30	62.8	↑0.6
12/20 03:40	63.2	↑0.4
12/20 03:50	63.6	↑0.4
12/20 04:00	63.9	↑0.3
12/20 04:10	64.2	↑0.3
12/20 04:20	64.4	↑0.2
12/20 04:30	64.5	↑0.1
12/20 04:40	64.6	↑0.1
12/20 04:50	64.6	0
12/20 05:00	64.6	0	満潮
12/20 05:10	64.6	0
12/20 05:20	64.6	0
12/20 05:30	64.6	0	干潮
12/20 05:40	64.6	0
12/20 05:50	64.7	↑0.1
12/20 06:00	64.7	0
12/20 06:10	64.8	↑0.1
12/20 06:20	65.0	↑0.2
12/20 06:30	65.2	↑0.2
12/20 06:40	65.4	↑0.2
12/20 06:50	65.8	↑0.4
12/20 07:00	66.2	↑0.4
12/20 07:10	66.7	↑0.5
12/20 07:20	67.3	↑0.6
12/20 07:30	68.1	↑0.8
12/20 07:40	68.9	↑0.8
12/20 07:50	69.8	↑0.9
12/20 08:00	70.8	↑1.0
12/20 08:10	71.9	↑1.1
12/20 08:20	73.2	↑1.3
12/20 08:30	74.5	↑1.3
12/20 08:40	76.0	↑1.5
12/20 08:50	77.6	↑1.6
12/20 09:00	79.3	↑1.7
12/20 09:10	81.0	↑1.7
12/20 09:20	82.9	↑1.9
12/20 09:30	84.8	↑1.9
12/20 09:40	86.8	↑2.0
12/20 09:50	88.9	↑2.1
12/20 10:00	91.1	↑2.2
12/20 10:10	93.3	↑2.2
12/20 10:20	95.5	↑2.2
12/20 10:30	97.8	↑2.3
12/20 10:40	100.0	↑2.2
12/20 10:50	102.3	↑2.3
12/20 11:00	104.6	↑2.3
12/20 11:10	106.8	↑2.2
12/20 11:20	109.0	↑2.2
12/20 11:30	111.2	↑2.2
12/20 11:40	113.2	↑2.0
12/20 11:50	115.2	↑2.0
12/20 12:00	117.2	↑2.0
12/20 12:10	119.0	↑1.8
12/20 12:20	120.6	↑1.6
12/20 12:30	122.2	↑1.6
12/20 12:40	123.6	↑1.4
12/20 12:50	124.8	↑1.2
12/20 13:00	125.9	↑1.1
12/20 13:10	126.8	↑0.9
12/20 13:20	127.5	↑0.7
12/20 13:30	128.0	↑0.5
12/20 13:40	128.4	↑0.4
12/20 13:50	128.5	↑0.1	満潮
12/20 14:00	128.4	↓-0.1
12/20 14:10	128.0	↓-0.4
12/20 14:20	127.5	↓-0.5
12/20 14:30	126.7	↓-0.8
12/20 14:40	125.8	↓-0.9
12/20 14:50	124.6	↓-1.2
12/20 15:00	123.1	↓-1.5
12/20 15:10	121.5	↓-1.6
12/20 15:20	119.7	↓-1.8
12/20 15:30	117.6	↓-2.1
12/20 15:40	115.4	↓-2.2
12/20 15:50	112.9	↓-2.5
12/20 16:00	110.3	↓-2.6
12/20 16:10	107.5	↓-2.8
12/20 16:20	104.6	↓-2.9
12/20 16:30	101.5	↓-3.1
12/20 16:40	98.3	↓-3.2
12/20 16:50	95.0	↓-3.3
12/20 17:00	91.5	↓-3.5
12/20 17:10	88.0	↓-3.5
12/20 17:20	84.4	↓-3.6
12/20 17:30	80.8	↓-3.6
12/20 17:40	77.1	↓-3.7
12/20 17:50	73.4	↓-3.7
12/20 18:00	69.6	↓-3.8	最大潮位差
12/20 18:10	65.9	↓-3.7
12/20 18:20	62.3	↓-3.6
12/20 18:30	58.6	↓-3.7
12/20 18:40	55.1	↓-3.5
12/20 18:50	51.6	↓-3.5
12/20 19:00	48.2	↓-3.4
12/20 19:10	44.9	↓-3.3
12/20 19:20	41.7	↓-3.2
12/20 19:30	38.7	↓-3.0
12/20 19:40	35.8	↓-2.9
12/20 19:50	33.0	↓-2.8
12/20 20:00	30.5	↓-2.5
12/20 20:10	28.1	↓-2.4
12/20 20:20	25.9	↓-2.2
12/20 20:30	23.9	↓-2.0
12/20 20:40	22.1	↓-1.8
12/20 20:50	20.5	↓-1.6
12/20 21:00	19.1	↓-1.4
12/20 21:10	18.0	↓-1.1
12/20 21:20	17.0	↓-1.0
12/20 21:30	16.3	↓-0.7
12/20 21:40	15.7	↓-0.6
12/20 21:50	15.4	↓-0.3
12/20 22:00	15.3	↓-0.1	干潮
12/20 22:10	15.4	↑0.1
12/20 22:20	15.6	↑0.2
12/20 22:30	16.1	↑0.5
12/20 22:40	16.7	↑0.6
12/20 22:50	17.5	↑0.8
12/20 23:00	18.5	↑1.0
12/20 23:10	19.6	↑1.1
12/20 23:20	20.9	↑1.3
12/20 23:30	22.3	↑1.4
12/20 23:40	23.8	↑1.5
12/20 23:50	25.4	↑1.6