18 (火)	04:30	05:35	13:28	21:41
	68cm	68cm	127cm	14cm
大潮 出 06:51 入 15:45 出 15:16 入 06:34

コイセボイ（北海道）2040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	41.0	↑1.8
12/18 00:10	42.9	↑1.9
12/18 00:20	44.7	↑1.8
12/18 00:30	46.5	↑1.8
12/18 00:40	48.3	↑1.8
12/18 00:50	50.0	↑1.7
12/18 01:00	51.7	↑1.7
12/18 01:10	53.3	↑1.6
12/18 01:20	54.8	↑1.5
12/18 01:30	56.3	↑1.5
12/18 01:40	57.6	↑1.3
12/18 01:50	58.9	↑1.3
12/18 02:00	60.1	↑1.2
12/18 02:10	61.2	↑1.1
12/18 02:20	62.2	↑1.0
12/18 02:30	63.1	↑0.9
12/18 02:40	64.0	↑0.9
12/18 02:50	64.7	↑0.7
12/18 03:00	65.3	↑0.6
12/18 03:10	65.8	↑0.5
12/18 03:20	66.3	↑0.5
12/18 03:30	66.6	↑0.3
12/18 03:40	66.9	↑0.3
12/18 03:50	67.2	↑0.3
12/18 04:00	67.3	↑0.1
12/18 04:10	67.4	↑0.1
12/18 04:20	67.5	↑0.1	満潮
12/18 04:30	67.5	0	満潮
12/18 04:40	67.5	0
12/18 04:50	67.4	↓-0.1
12/18 05:00	67.4	0
12/18 05:10	67.3	↓-0.1
12/18 05:20	67.3	0
12/18 05:30	67.3	0	干潮
12/18 05:40	67.3	0
12/18 05:50	67.3	0
12/18 06:00	67.4	↑0.1
12/18 06:10	67.5	↑0.1
12/18 06:20	67.7	↑0.2
12/18 06:30	68.0	↑0.3
12/18 06:40	68.4	↑0.4
12/18 06:50	68.8	↑0.4
12/18 07:00	69.3	↑0.5
12/18 07:10	69.9	↑0.6
12/18 07:20	70.7	↑0.8
12/18 07:30	71.5	↑0.8
12/18 07:40	72.4	↑0.9
12/18 07:50	73.5	↑1.1
12/18 08:00	74.6	↑1.1
12/18 08:10	75.9	↑1.3
12/18 08:20	77.2	↑1.3
12/18 08:30	78.7	↑1.5
12/18 08:40	80.3	↑1.6
12/18 08:50	81.9	↑1.6
12/18 09:00	83.7	↑1.8
12/18 09:10	85.5	↑1.8
12/18 09:20	87.4	↑1.9
12/18 09:30	89.4	↑2.0
12/18 09:40	91.4	↑2.0
12/18 09:50	93.5	↑2.1
12/18 10:00	95.6	↑2.1
12/18 10:10	97.7	↑2.1
12/18 10:20	99.9	↑2.2
12/18 10:30	102.0	↑2.1
12/18 10:40	104.2	↑2.2
12/18 10:50	106.3	↑2.1
12/18 11:00	108.4	↑2.1
12/18 11:10	110.4	↑2.0
12/18 11:20	112.3	↑1.9
12/18 11:30	114.2	↑1.9
12/18 11:40	116.0	↑1.8
12/18 11:50	117.7	↑1.7
12/18 12:00	119.3	↑1.6
12/18 12:10	120.7	↑1.4
12/18 12:20	122.0	↑1.3
12/18 12:30	123.2	↑1.2
12/18 12:40	124.1	↑0.9
12/18 12:50	124.9	↑0.8
12/18 13:00	125.6	↑0.7
12/18 13:10	126.0	↑0.4
12/18 13:20	126.2	↑0.2	満潮
12/18 13:30	126.3	↑0.1
12/18 13:40	126.1	↓-0.2
12/18 13:50	125.7	↓-0.4
12/18 14:00	125.1	↓-0.6
12/18 14:10	124.3	↓-0.8
12/18 14:20	123.3	↓-1.0
12/18 14:30	122.0	↓-1.3
12/18 14:40	120.5	↓-1.5
12/18 14:50	118.9	↓-1.6
12/18 15:00	117.0	↓-1.9
12/18 15:10	114.9	↓-2.1
12/18 15:20	112.6	↓-2.3
12/18 15:30	110.2	↓-2.4
12/18 15:40	107.6	↓-2.6
12/18 15:50	104.8	↓-2.8
12/18 16:00	101.8	↓-3.0
12/18 16:10	98.7	↓-3.1
12/18 16:20	95.5	↓-3.2
12/18 16:30	92.2	↓-3.3
12/18 16:40	88.8	↓-3.4
12/18 16:50	85.3	↓-3.5
12/18 17:00	81.7	↓-3.6
12/18 17:10	78.1	↓-3.6
12/18 17:20	74.4	↓-3.7	最大潮位差
12/18 17:30	70.7	↓-3.7	最大潮位差
12/18 17:40	67.0	↓-3.7	最大潮位差
12/18 17:50	63.3	↓-3.7	最大潮位差
12/18 18:00	59.7	↓-3.6
12/18 18:10	56.1	↓-3.6
12/18 18:20	52.5	↓-3.6
12/18 18:30	49.1	↓-3.4
12/18 18:40	45.7	↓-3.4
12/18 18:50	42.5	↓-3.2
12/18 19:00	39.3	↓-3.2
12/18 19:10	36.3	↓-3.0
12/18 19:20	33.5	↓-2.8
12/18 19:30	30.8	↓-2.7
12/18 19:40	28.2	↓-2.6
12/18 19:50	25.9	↓-2.3
12/18 20:00	23.7	↓-2.2
12/18 20:10	21.7	↓-2.0
12/18 20:20	20.0	↓-1.7
12/18 20:30	18.4	↓-1.6
12/18 20:40	17.0	↓-1.4
12/18 20:50	15.9	↓-1.1
12/18 21:00	14.9	↓-1.0
12/18 21:10	14.2	↓-0.7
12/18 21:20	13.7	↓-0.5
12/18 21:30	13.4	↓-0.3
12/18 21:40	13.3	↓-0.1	干潮
12/18 21:50	13.4	↑0.1
12/18 22:00	13.7	↑0.3
12/18 22:10	14.1	↑0.4
12/18 22:20	14.8	↑0.7
12/18 22:30	15.6	↑0.8
12/18 22:40	16.6	↑1.0
12/18 22:50	17.7	↑1.1
12/18 23:00	19.0	↑1.3
12/18 23:10	20.4	↑1.4
12/18 23:20	21.9	↑1.5
12/18 23:30	23.5	↑1.6
12/18 23:40	25.2	↑1.7
12/18 23:50	27.0	↑1.8