19 (日)	05:00	05:59	13:56	22:09
	67cm	67cm	130cm	12cm
大潮 出 06:52 入 15:46 出 15:33 入 06:52

コイセボイ（北海道）2021年12月19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
12/19 00:00	33.2	↑1.9
12/19 00:10	35.1	↑1.9
12/19 00:20	37.0	↑1.9
12/19 00:30	39.0	↑2.0
12/19 00:40	40.9	↑1.9
12/19 00:50	42.9	↑2.0
12/19 01:00	44.8	↑1.9
12/19 01:10	46.6	↑1.8
12/19 01:20	48.4	↑1.8
12/19 01:30	50.2	↑1.8
12/19 01:40	51.9	↑1.7
12/19 01:50	53.5	↑1.6
12/19 02:00	55.0	↑1.5
12/19 02:10	56.4	↑1.4
12/19 02:20	57.8	↑1.4
12/19 02:30	59.0	↑1.2
12/19 02:40	60.2	↑1.2
12/19 02:50	61.2	↑1.0
12/19 03:00	62.1	↑0.9
12/19 03:10	63.0	↑0.9
12/19 03:20	63.7	↑0.7
12/19 03:30	64.4	↑0.7
12/19 03:40	64.9	↑0.5
12/19 03:50	65.4	↑0.5
12/19 04:00	65.7	↑0.3
12/19 04:10	66.0	↑0.3
12/19 04:20	66.2	↑0.2
12/19 04:30	66.4	↑0.2
12/19 04:40	66.5	↑0.1
12/19 04:50	66.6	↑0.1	満潮
12/19 05:00	66.6	0	満潮
12/19 05:10	66.6	0
12/19 05:20	66.5	↓-0.1
12/19 05:30	66.5	0
12/19 05:40	66.4	↓-0.1
12/19 05:50	66.4	0	干潮
12/19 06:00	66.4	0
12/19 06:10	66.4	0
12/19 06:20	66.5	↑0.1
12/19 06:30	66.6	↑0.1
12/19 06:40	66.8	↑0.2
12/19 06:50	67.0	↑0.2
12/19 07:00	67.4	↑0.4
12/19 07:10	67.8	↑0.4
12/19 07:20	68.3	↑0.5
12/19 07:30	68.9	↑0.6
12/19 07:40	69.6	↑0.7
12/19 07:50	70.4	↑0.8
12/19 08:00	71.3	↑0.9
12/19 08:10	72.3	↑1.0
12/19 08:20	73.5	↑1.2
12/19 08:30	74.7	↑1.2
12/19 08:40	76.1	↑1.4
12/19 08:50	77.6	↑1.5
12/19 09:00	79.2	↑1.6
12/19 09:10	80.9	↑1.7
12/19 09:20	82.7	↑1.8
12/19 09:30	84.5	↑1.8
12/19 09:40	86.5	↑2.0
12/19 09:50	88.6	↑2.1
12/19 10:00	90.7	↑2.1
12/19 10:10	92.8	↑2.1
12/19 10:20	95.1	↑2.3
12/19 10:30	97.3	↑2.2
12/19 10:40	99.6	↑2.3
12/19 10:50	101.9	↑2.3
12/19 11:00	104.2	↑2.3
12/19 11:10	106.4	↑2.2
12/19 11:20	108.7	↑2.3
12/19 11:30	110.9	↑2.2
12/19 11:40	113.0	↑2.1
12/19 11:50	115.1	↑2.1
12/19 12:00	117.1	↑2.0
12/19 12:10	119.0	↑1.9
12/19 12:20	120.7	↑1.7
12/19 12:30	122.4	↑1.7
12/19 12:40	123.9	↑1.5
12/19 12:50	125.2	↑1.3
12/19 13:00	126.4	↑1.2
12/19 13:10	127.4	↑1.0
12/19 13:20	128.2	↑0.8
12/19 13:30	128.9	↑0.7
12/19 13:40	129.3	↑0.4
12/19 13:50	129.5	↑0.2	満潮
12/19 14:00	129.5	0
12/19 14:10	129.3	↓-0.2
12/19 14:20	128.9	↓-0.4
12/19 14:30	128.2	↓-0.7
12/19 14:40	127.3	↓-0.9
12/19 14:50	126.2	↓-1.1
12/19 15:00	124.8	↓-1.4
12/19 15:10	123.3	↓-1.5
12/19 15:20	121.5	↓-1.8
12/19 15:30	119.5	↓-2.0
12/19 15:40	117.3	↓-2.2
12/19 15:50	114.9	↓-2.4
12/19 16:00	112.3	↓-2.6
12/19 16:10	109.5	↓-2.8
12/19 16:20	106.5	↓-3.0
12/19 16:30	103.4	↓-3.1
12/19 16:40	100.2	↓-3.2
12/19 16:50	96.8	↓-3.4
12/19 17:00	93.3	↓-3.5
12/19 17:10	89.7	↓-3.6
12/19 17:20	86.0	↓-3.7
12/19 17:30	82.3	↓-3.7
12/19 17:40	78.5	↓-3.8
12/19 17:50	74.7	↓-3.8
12/19 18:00	70.8	↓-3.9	最大潮位差
12/19 18:10	67.0	↓-3.8
12/19 18:20	63.1	↓-3.9	最大潮位差
12/19 18:30	59.3	↓-3.8
12/19 18:40	55.6	↓-3.7
12/19 18:50	51.9	↓-3.7
12/19 19:00	48.3	↓-3.6
12/19 19:10	44.9	↓-3.4
12/19 19:20	41.5	↓-3.4
12/19 19:30	38.3	↓-3.2
12/19 19:40	35.2	↓-3.1
12/19 19:50	32.2	↓-3.0
12/19 20:00	29.4	↓-2.8
12/19 20:10	26.8	↓-2.6
12/19 20:20	24.4	↓-2.4
12/19 20:30	22.2	↓-2.2
12/19 20:40	20.2	↓-2.0
12/19 20:50	18.4	↓-1.8
12/19 21:00	16.8	↓-1.6
12/19 21:10	15.5	↓-1.3
12/19 21:20	14.3	↓-1.2
12/19 21:30	13.4	↓-0.9
12/19 21:40	12.7	↓-0.7
12/19 21:50	12.2	↓-0.5
12/19 22:00	11.9	↓-0.3	干潮
12/19 22:10	11.8	↓-0.1
12/19 22:20	12.0	↑0.2
12/19 22:30	12.3	↑0.3
12/19 22:40	12.8	↑0.5
12/19 22:50	13.5	↑0.7
12/19 23:00	14.4	↑0.9
12/19 23:10	15.4	↑1.0
12/19 23:20	16.6	↑1.2
12/19 23:30	18.0	↑1.4
12/19 23:40	19.4	↑1.4
12/19 23:50	21.0	↑1.6