18 (月)	04:11	07:01	14:13	22:06
	68cm	64cm	126cm	18cm
大潮 出 06:51 入 15:45 出 16:43 入 06:46

コイセボイ（北海道）2051年12月18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
12/18 00:00	37.3	↑1.9
12/18 00:10	39.3	↑2.0
12/18 00:20	41.2	↑1.9
12/18 00:30	43.1	↑1.9
12/18 00:40	45.0	↑1.9
12/18 00:50	46.9	↑1.9
12/18 01:00	48.8	↑1.9
12/18 01:10	50.6	↑1.8
12/18 01:20	52.4	↑1.8
12/18 01:30	54.1	↑1.7
12/18 01:40	55.7	↑1.6
12/18 01:50	57.2	↑1.5
12/18 02:00	58.7	↑1.5
12/18 02:10	60.0	↑1.3
12/18 02:20	61.3	↑1.3
12/18 02:30	62.4	↑1.1
12/18 02:40	63.4	↑1.0
12/18 02:50	64.3	↑0.9
12/18 03:00	65.1	↑0.8
12/18 03:10	65.8	↑0.7
12/18 03:20	66.3	↑0.5
12/18 03:30	66.8	↑0.5
12/18 03:40	67.1	↑0.3
12/18 03:50	67.3	↑0.2
12/18 04:00	67.5	↑0.2
12/18 04:10	67.5	0	満潮
12/18 04:20	67.5	0
12/18 04:30	67.4	↓-0.1
12/18 04:40	67.2	↓-0.2
12/18 04:50	66.9	↓-0.3
12/18 05:00	66.6	↓-0.3
12/18 05:10	66.3	↓-0.3
12/18 05:20	66.0	↓-0.3
12/18 05:30	65.6	↓-0.4
12/18 05:40	65.2	↓-0.4
12/18 05:50	64.8	↓-0.4
12/18 06:00	64.4	↓-0.4
12/18 06:10	64.1	↓-0.3
12/18 06:20	63.8	↓-0.3
12/18 06:30	63.5	↓-0.3
12/18 06:40	63.4	↓-0.1
12/18 06:50	63.2	↓-0.2
12/18 07:00	63.2	0	干潮
12/18 07:10	63.3	↑0.1
12/18 07:20	63.4	↑0.1
12/18 07:30	63.6	↑0.2
12/18 07:40	64.0	↑0.4
12/18 07:50	64.5	↑0.5
12/18 08:00	65.1	↑0.6
12/18 08:10	65.8	↑0.7
12/18 08:20	66.7	↑0.9
12/18 08:30	67.6	↑0.9
12/18 08:40	68.8	↑1.2
12/18 08:50	70.0	↑1.2
12/18 09:00	71.4	↑1.4
12/18 09:10	72.8	↑1.4
12/18 09:20	74.5	↑1.7
12/18 09:30	76.2	↑1.7
12/18 09:40	78.0	↑1.8
12/18 09:50	79.9	↑1.9
12/18 10:00	81.9	↑2.0
12/18 10:10	84.0	↑2.1
12/18 10:20	86.2	↑2.2
12/18 10:30	88.5	↑2.3
12/18 10:40	90.7	↑2.2
12/18 10:50	93.0	↑2.3
12/18 11:00	95.4	↑2.4
12/18 11:10	97.7	↑2.3
12/18 11:20	100.1	↑2.4
12/18 11:30	102.4	↑2.3
12/18 11:40	104.7	↑2.3
12/18 11:50	106.9	↑2.2
12/18 12:00	109.1	↑2.2
12/18 12:10	111.2	↑2.1
12/18 12:20	113.2	↑2.0
12/18 12:30	115.1	↑1.9
12/18 12:40	116.8	↑1.7
12/18 12:50	118.4	↑1.6
12/18 13:00	119.9	↑1.5
12/18 13:10	121.2	↑1.3
12/18 13:20	122.4	↑1.2
12/18 13:30	123.4	↑1.0
12/18 13:40	124.1	↑0.7
12/18 13:50	124.7	↑0.6
12/18 14:00	125.1	↑0.4
12/18 14:10	125.2	↑0.1	満潮
12/18 14:20	125.1	↓-0.1
12/18 14:30	124.8	↓-0.3
12/18 14:40	124.3	↓-0.5
12/18 14:50	123.6	↓-0.7
12/18 15:00	122.6	↓-1.0
12/18 15:10	121.4	↓-1.2
12/18 15:20	120.0	↓-1.4
12/18 15:30	118.3	↓-1.7
12/18 15:40	116.5	↓-1.8
12/18 15:50	114.4	↓-2.1
12/18 16:00	112.1	↓-2.3
12/18 16:10	109.7	↓-2.4
12/18 16:20	107.1	↓-2.6
12/18 16:30	104.3	↓-2.8
12/18 16:40	101.3	↓-3.0
12/18 16:50	98.2	↓-3.1
12/18 17:00	95.0	↓-3.2
12/18 17:10	91.7	↓-3.3
12/18 17:20	88.2	↓-3.5
12/18 17:30	84.7	↓-3.5
12/18 17:40	81.2	↓-3.5
12/18 17:50	77.5	↓-3.7	最大潮位差
12/18 18:00	73.9	↓-3.6
12/18 18:10	70.2	↓-3.7	最大潮位差
12/18 18:20	66.6	↓-3.6
12/18 18:30	63.0	↓-3.6
12/18 18:40	59.4	↓-3.6
12/18 18:50	55.9	↓-3.5
12/18 19:00	52.4	↓-3.5
12/18 19:10	49.1	↓-3.3
12/18 19:20	45.8	↓-3.3
12/18 19:30	42.7	↓-3.1
12/18 19:40	39.7	↓-3.0
12/18 19:50	36.9	↓-2.8
12/18 20:00	34.2	↓-2.7
12/18 20:10	31.7	↓-2.5
12/18 20:20	29.4	↓-2.3
12/18 20:30	27.2	↓-2.2
12/18 20:40	25.3	↓-1.9
12/18 20:50	23.6	↓-1.7
12/18 21:00	22.1	↓-1.5
12/18 21:10	20.8	↓-1.3
12/18 21:20	19.7	↓-1.1
12/18 21:30	18.8	↓-0.9
12/18 21:40	18.2	↓-0.6
12/18 21:50	17.8	↓-0.4
12/18 22:00	17.5	↓-0.3	干潮
12/18 22:10	17.5	0
12/18 22:20	17.8	↑0.3
12/18 22:30	18.2	↑0.4
12/18 22:40	18.8	↑0.6
12/18 22:50	19.5	↑0.7
12/18 23:00	20.5	↑1.0
12/18 23:10	21.6	↑1.1
12/18 23:20	22.9	↑1.3
12/18 23:30	24.3	↑1.4
12/18 23:40	25.8	↑1.5
12/18 23:50	27.5	↑1.7