20 (月)	05:04	07:43	14:59	22:56
	68cm	64cm	129cm	16cm
中潮 出 06:52 入 15:46 出 08:18 入 17:43

コイセボイ（北海道）2055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	25.1	↑1.7
12/20 00:10	26.8	↑1.7
12/20 00:20	28.7	↑1.9
12/20 00:30	30.6	↑1.9
12/20 00:40	32.6	↑2.0
12/20 00:50	34.7	↑2.1
12/20 01:00	36.7	↑2.0
12/20 01:10	38.8	↑2.1
12/20 01:20	40.9	↑2.1
12/20 01:30	43.0	↑2.1
12/20 01:40	45.0	↑2.0
12/20 01:50	47.0	↑2.0
12/20 02:00	49.0	↑2.0
12/20 02:10	50.9	↑1.9
12/20 02:20	52.7	↑1.8
12/20 02:30	54.4	↑1.7
12/20 02:40	56.1	↑1.7
12/20 02:50	57.6	↑1.5
12/20 03:00	59.1	↑1.5
12/20 03:10	60.4	↑1.3
12/20 03:20	61.6	↑1.2
12/20 03:30	62.7	↑1.1
12/20 03:40	63.7	↑1.0
12/20 03:50	64.5	↑0.8
12/20 04:00	65.2	↑0.7
12/20 04:10	65.9	↑0.7
12/20 04:20	66.3	↑0.4
12/20 04:30	66.7	↑0.4
12/20 04:40	67.0	↑0.3
12/20 04:50	67.2	↑0.2
12/20 05:00	67.2	0	満潮
12/20 05:10	67.2	0
12/20 05:20	67.1	↓-0.1
12/20 05:30	67.0	↓-0.1
12/20 05:40	66.8	↓-0.2
12/20 05:50	66.5	↓-0.3
12/20 06:00	66.2	↓-0.3
12/20 06:10	65.8	↓-0.4
12/20 06:20	65.5	↓-0.3
12/20 06:30	65.1	↓-0.4
12/20 06:40	64.8	↓-0.3
12/20 06:50	64.4	↓-0.4
12/20 07:00	64.1	↓-0.3
12/20 07:10	63.9	↓-0.2
12/20 07:20	63.7	↓-0.2
12/20 07:30	63.6	↓-0.1
12/20 07:40	63.5	↓-0.1	干潮
12/20 07:50	63.5	0
12/20 08:00	63.7	↑0.2
12/20 08:10	63.9	↑0.2
12/20 08:20	64.2	↑0.3
12/20 08:30	64.7	↑0.5
12/20 08:40	65.3	↑0.6
12/20 08:50	66.0	↑0.7
12/20 09:00	66.8	↑0.8
12/20 09:10	67.8	↑1.0
12/20 09:20	68.9	↑1.1
12/20 09:30	70.1	↑1.2
12/20 09:40	71.5	↑1.4
12/20 09:50	73.0	↑1.5
12/20 10:00	74.6	↑1.6
12/20 10:10	76.4	↑1.8
12/20 10:20	78.2	↑1.8
12/20 10:30	80.2	↑2.0
12/20 10:40	82.3	↑2.1
12/20 10:50	84.4	↑2.1
12/20 11:00	86.7	↑2.3
12/20 11:10	89.0	↑2.3
12/20 11:20	91.3	↑2.3
12/20 11:30	93.7	↑2.4
12/20 11:40	96.2	↑2.5
12/20 11:50	98.6	↑2.4
12/20 12:00	101.1	↑2.5
12/20 12:10	103.5	↑2.4
12/20 12:20	106.0	↑2.5
12/20 12:30	108.3	↑2.3
12/20 12:40	110.6	↑2.3
12/20 12:50	112.9	↑2.3
12/20 13:00	115.0	↑2.1
12/20 13:10	117.1	↑2.1
12/20 13:20	119.0	↑1.9
12/20 13:30	120.8	↑1.8
12/20 13:40	122.4	↑1.6
12/20 13:50	123.9	↑1.5
12/20 14:00	125.2	↑1.3
12/20 14:10	126.3	↑1.1
12/20 14:20	127.2	↑0.9
12/20 14:30	128.0	↑0.8
12/20 14:40	128.5	↑0.5
12/20 14:50	128.8	↑0.3	満潮
12/20 15:00	128.8	0
12/20 15:10	128.6	↓-0.2
12/20 15:20	128.2	↓-0.4
12/20 15:30	127.6	↓-0.6
12/20 15:40	126.7	↓-0.9
12/20 15:50	125.6	↓-1.1
12/20 16:00	124.2	↓-1.4
12/20 16:10	122.7	↓-1.5
12/20 16:20	120.9	↓-1.8
12/20 16:30	118.8	↓-2.1
12/20 16:40	116.6	↓-2.2
12/20 16:50	114.1	↓-2.5
12/20 17:00	111.5	↓-2.6
12/20 17:10	108.7	↓-2.8
12/20 17:20	105.7	↓-3.0
12/20 17:30	102.6	↓-3.1
12/20 17:40	99.3	↓-3.3
12/20 17:50	95.9	↓-3.4
12/20 18:00	92.3	↓-3.6
12/20 18:10	88.7	↓-3.6
12/20 18:20	85.0	↓-3.7
12/20 18:30	81.3	↓-3.7
12/20 18:40	77.5	↓-3.8
12/20 18:50	73.7	↓-3.8
12/20 19:00	69.8	↓-3.9	最大潮位差
12/20 19:10	66.0	↓-3.8
12/20 19:20	62.2	↓-3.8
12/20 19:30	58.5	↓-3.7
12/20 19:40	54.8	↓-3.7
12/20 19:50	51.3	↓-3.5
12/20 20:00	47.8	↓-3.5
12/20 20:10	44.4	↓-3.4
12/20 20:20	41.2	↓-3.2
12/20 20:30	38.1	↓-3.1
12/20 20:40	35.1	↓-3.0
12/20 20:50	32.4	↓-2.7
12/20 21:00	29.8	↓-2.6
12/20 21:10	27.4	↓-2.4
12/20 21:20	25.2	↓-2.2
12/20 21:30	23.2	↓-2.0
12/20 21:40	21.4	↓-1.8
12/20 21:50	19.9	↓-1.5
12/20 22:00	18.6	↓-1.3
12/20 22:10	17.5	↓-1.1
12/20 22:20	16.6	↓-0.9
12/20 22:30	15.9	↓-0.7
12/20 22:40	15.5	↓-0.4
12/20 22:50	15.3	↓-0.2	干潮
12/20 23:00	15.3	0
12/20 23:10	15.5	↑0.2
12/20 23:20	15.9	↑0.4
12/20 23:30	16.5	↑0.6
12/20 23:40	17.3	↑0.8
12/20 23:50	18.3	↑1.0