18 (日)	06:20	07:34	15:34	23:46
	63cm	63cm	132cm	16cm
中潮 出 06:51 入 15:45 出 09:28 入 18:25

コイセボイ（北海道）2039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	15.2	↑1.0
12/18 00:10	16.3	↑1.1
12/18 00:20	17.6	↑1.3
12/18 00:30	19.0	↑1.4
12/18 00:40	20.5	↑1.5
12/18 00:50	22.1	↑1.6
12/18 01:00	23.8	↑1.7
12/18 01:10	25.6	↑1.8
12/18 01:20	27.4	↑1.8
12/18 01:30	29.3	↑1.9
12/18 01:40	31.3	↑2.0
12/18 01:50	33.2	↑1.9
12/18 02:00	35.2	↑2.0
12/18 02:10	37.1	↑1.9
12/18 02:20	39.1	↑2.0
12/18 02:30	41.0	↑1.9
12/18 02:40	42.9	↑1.9
12/18 02:50	44.7	↑1.8
12/18 03:00	46.5	↑1.8
12/18 03:10	48.2	↑1.7
12/18 03:20	49.8	↑1.6
12/18 03:30	51.3	↑1.5
12/18 03:40	52.8	↑1.5
12/18 03:50	54.1	↑1.3
12/18 04:00	55.4	↑1.3
12/18 04:10	56.5	↑1.1
12/18 04:20	57.5	↑1.0
12/18 04:30	58.5	↑1.0
12/18 04:40	59.3	↑0.8
12/18 04:50	60.0	↑0.7
12/18 05:00	60.6	↑0.6
12/18 05:10	61.2	↑0.6
12/18 05:20	61.6	↑0.4
12/18 05:30	61.9	↑0.3
12/18 05:40	62.2	↑0.3
12/18 05:50	62.4	↑0.2
12/18 06:00	62.5	↑0.1
12/18 06:10	62.6	↑0.1	満潮
12/18 06:20	62.6	0	満潮
12/18 06:30	62.6	0
12/18 06:40	62.5	↓-0.1
12/18 06:50	62.5	0
12/18 07:00	62.4	↓-0.1
12/18 07:10	62.3	↓-0.1
12/18 07:20	62.3	0
12/18 07:30	62.3	0	干潮
12/18 07:40	62.3	0
12/18 07:50	62.3	0
12/18 08:00	62.4	↑0.1
12/18 08:10	62.6	↑0.2
12/18 08:20	62.9	↑0.3
12/18 08:30	63.2	↑0.3
12/18 08:40	63.6	↑0.4
12/18 08:50	64.2	↑0.6
12/18 09:00	64.8	↑0.6
12/18 09:10	65.6	↑0.8
12/18 09:20	66.4	↑0.8
12/18 09:30	67.4	↑1.0
12/18 09:40	68.5	↑1.1
12/18 09:50	69.7	↑1.2
12/18 10:00	71.1	↑1.4
12/18 10:10	72.6	↑1.5
12/18 10:20	74.2	↑1.6
12/18 10:30	75.9	↑1.7
12/18 10:40	77.7	↑1.8
12/18 10:50	79.6	↑1.9
12/18 11:00	81.6	↑2.0
12/18 11:10	83.8	↑2.2
12/18 11:20	86.0	↑2.2
12/18 11:30	88.3	↑2.3
12/18 11:40	90.6	↑2.3
12/18 11:50	93.0	↑2.4
12/18 12:00	95.4	↑2.4
12/18 12:10	97.9	↑2.5
12/18 12:20	100.4	↑2.5
12/18 12:30	102.9	↑2.5
12/18 12:40	105.3	↑2.4
12/18 12:50	107.8	↑2.5
12/18 13:00	110.2	↑2.4
12/18 13:10	112.5	↑2.3
12/18 13:20	114.8	↑2.3
12/18 13:30	117.0	↑2.2
12/18 13:40	119.1	↑2.1
12/18 13:50	121.1	↑2.0
12/18 14:00	122.9	↑1.8
12/18 14:10	124.7	↑1.8
12/18 14:20	126.2	↑1.5
12/18 14:30	127.6	↑1.4
12/18 14:40	128.8	↑1.2
12/18 14:50	129.8	↑1.0
12/18 15:00	130.6	↑0.8
12/18 15:10	131.3	↑0.7
12/18 15:20	131.7	↑0.4
12/18 15:30	131.9	↑0.2	満潮
12/18 15:40	131.8	↓-0.1
12/18 15:50	131.5	↓-0.3
12/18 16:00	131.0	↓-0.5
12/18 16:10	130.3	↓-0.7
12/18 16:20	129.3	↓-1.0
12/18 16:30	128.1	↓-1.2
12/18 16:40	126.7	↓-1.4
12/18 16:50	125.0	↓-1.7
12/18 17:00	123.2	↓-1.8
12/18 17:10	121.1	↓-2.1
12/18 17:20	118.8	↓-2.3
12/18 17:30	116.3	↓-2.5
12/18 17:40	113.6	↓-2.7
12/18 17:50	110.7	↓-2.9
12/18 18:00	107.7	↓-3.0
12/18 18:10	104.6	↓-3.1
12/18 18:20	101.2	↓-3.4
12/18 18:30	97.8	↓-3.4
12/18 18:40	94.3	↓-3.5
12/18 18:50	90.7	↓-3.6
12/18 19:00	87.0	↓-3.7
12/18 19:10	83.2	↓-3.8
12/18 19:20	79.4	↓-3.8
12/18 19:30	75.6	↓-3.8
12/18 19:40	71.7	↓-3.9	最大潮位差
12/18 19:50	67.9	↓-3.8
12/18 20:00	64.1	↓-3.8
12/18 20:10	60.4	↓-3.7
12/18 20:20	56.7	↓-3.7
12/18 20:30	53.1	↓-3.6
12/18 20:40	49.6	↓-3.5
12/18 20:50	46.2	↓-3.4
12/18 21:00	42.9	↓-3.3
12/18 21:10	39.8	↓-3.1
12/18 21:20	36.8	↓-3.0
12/18 21:30	34.0	↓-2.8
12/18 21:40	31.4	↓-2.6
12/18 21:50	28.9	↓-2.5
12/18 22:00	26.6	↓-2.3
12/18 22:10	24.5	↓-2.1
12/18 22:20	22.7	↓-1.8
12/18 22:30	21.0	↓-1.7
12/18 22:40	19.5	↓-1.5
12/18 22:50	18.3	↓-1.2
12/18 23:00	17.3	↓-1.0
12/18 23:10	16.4	↓-0.9
12/18 23:20	15.8	↓-0.6
12/18 23:30	15.4	↓-0.4
12/18 23:40	15.2	↓-0.2	干潮
12/18 23:50	15.3	↑0.1