15 (月)	04:46	07:24	14:43	22:38
	66cm	63cm	128cm	17cm
大潮 出 06:49 入 15:44 出 07:14 入 16:51

コイセボイ（北海道）2031年12月15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
12/15 00:00	28.5	↑1.7
12/15 00:10	30.4	↑1.9
12/15 00:20	32.2	↑1.8
12/15 00:30	34.2	↑2.0
12/15 00:40	36.2	↑2.0
12/15 00:50	38.2	↑2.0
12/15 01:00	40.2	↑2.0
12/15 01:10	42.1	↑1.9
12/15 01:20	44.1	↑2.0
12/15 01:30	46.1	↑2.0
12/15 01:40	47.9	↑1.8
12/15 01:50	49.8	↑1.9
12/15 02:00	51.5	↑1.7
12/15 02:10	53.2	↑1.7
12/15 02:20	54.8	↑1.6
12/15 02:30	56.3	↑1.5
12/15 02:40	57.7	↑1.4
12/15 02:50	59.0	↑1.3
12/15 03:00	60.2	↑1.2
12/15 03:10	61.3	↑1.1
12/15 03:20	62.3	↑1.0
12/15 03:30	63.1	↑0.8
12/15 03:40	63.8	↑0.7
12/15 03:50	64.4	↑0.6
12/15 04:00	64.9	↑0.5
12/15 04:10	65.3	↑0.4
12/15 04:20	65.6	↑0.3
12/15 04:30	65.8	↑0.2
12/15 04:40	65.8	0	満潮
12/15 04:50	65.8	0
12/15 05:00	65.8	0
12/15 05:10	65.6	↓-0.2
12/15 05:20	65.4	↓-0.2
12/15 05:30	65.1	↓-0.3
12/15 05:40	64.8	↓-0.3
12/15 05:50	64.5	↓-0.3
12/15 06:00	64.2	↓-0.3
12/15 06:10	63.8	↓-0.4
12/15 06:20	63.5	↓-0.3
12/15 06:30	63.2	↓-0.3
12/15 06:40	62.9	↓-0.3
12/15 06:50	62.6	↓-0.3
12/15 07:00	62.4	↓-0.2
12/15 07:10	62.3	↓-0.1
12/15 07:20	62.2	↓-0.1	干潮
12/15 07:30	62.2	0
12/15 07:40	62.3	↑0.1
12/15 07:50	62.5	↑0.2
12/15 08:00	62.8	↑0.3
12/15 08:10	63.3	↑0.5
12/15 08:20	63.8	↑0.5
12/15 08:30	64.5	↑0.7
12/15 08:40	65.3	↑0.8
12/15 08:50	66.2	↑0.9
12/15 09:00	67.3	↑1.1
12/15 09:10	68.5	↑1.2
12/15 09:20	69.8	↑1.3
12/15 09:30	71.3	↑1.5
12/15 09:40	72.9	↑1.6
12/15 09:50	74.6	↑1.7
12/15 10:00	76.4	↑1.8
12/15 10:10	78.3	↑1.9
12/15 10:20	80.4	↑2.1
12/15 10:30	82.5	↑2.1
12/15 10:40	84.7	↑2.2
12/15 10:50	87.0	↑2.3
12/15 11:00	89.3	↑2.3
12/15 11:10	91.7	↑2.4
12/15 11:20	94.1	↑2.4
12/15 11:30	96.6	↑2.5
12/15 11:40	99.0	↑2.4
12/15 11:50	101.5	↑2.5
12/15 12:00	103.9	↑2.4
12/15 12:10	106.3	↑2.4
12/15 12:20	108.6	↑2.3
12/15 12:30	110.8	↑2.2
12/15 12:40	113.0	↑2.2
12/15 12:50	115.1	↑2.1
12/15 13:00	117.0	↑1.9
12/15 13:10	118.9	↑1.9
12/15 13:20	120.6	↑1.7
12/15 13:30	122.1	↑1.5
12/15 13:40	123.5	↑1.4
12/15 13:50	124.6	↑1.1
12/15 14:00	125.6	↑1.0
12/15 14:10	126.4	↑0.8
12/15 14:20	127.0	↑0.6
12/15 14:30	127.4	↑0.4
12/15 14:40	127.5	↑0.1	満潮
12/15 14:50	127.5	0
12/15 15:00	127.2	↓-0.3
12/15 15:10	126.6	↓-0.6
12/15 15:20	125.8	↓-0.8
12/15 15:30	124.8	↓-1.0
12/15 15:40	123.6	↓-1.2
12/15 15:50	122.1	↓-1.5
12/15 16:00	120.4	↓-1.7
12/15 16:10	118.5	↓-1.9
12/15 16:20	116.4	↓-2.1
12/15 16:30	114.1	↓-2.3
12/15 16:40	111.5	↓-2.6
12/15 16:50	108.8	↓-2.7
12/15 17:00	106.0	↓-2.8
12/15 17:10	102.9	↓-3.1
12/15 17:20	99.7	↓-3.2
12/15 17:30	96.4	↓-3.3
12/15 17:40	93.0	↓-3.4
12/15 17:50	89.5	↓-3.5
12/15 18:00	85.9	↓-3.6
12/15 18:10	82.2	↓-3.7
12/15 18:20	78.5	↓-3.7
12/15 18:30	74.8	↓-3.7
12/15 18:40	71.0	↓-3.8	最大潮位差
12/15 18:50	67.2	↓-3.8	最大潮位差
12/15 19:00	63.5	↓-3.7
12/15 19:10	59.8	↓-3.7
12/15 19:20	56.2	↓-3.6
12/15 19:30	52.7	↓-3.5
12/15 19:40	49.2	↓-3.5
12/15 19:50	45.9	↓-3.3
12/15 20:00	42.7	↓-3.2
12/15 20:10	39.6	↓-3.1
12/15 20:20	36.7	↓-2.9
12/15 20:30	33.9	↓-2.8
12/15 20:40	31.3	↓-2.6
12/15 20:50	28.9	↓-2.4
12/15 21:00	26.7	↓-2.2
12/15 21:10	24.7	↓-2.0
12/15 21:20	22.9	↓-1.8
12/15 21:30	21.4	↓-1.5
12/15 21:40	20.0	↓-1.4
12/15 21:50	18.9	↓-1.1
12/15 22:00	18.0	↓-0.9
12/15 22:10	17.3	↓-0.7
12/15 22:20	16.8	↓-0.5
12/15 22:30	16.6	↓-0.2	干潮
12/15 22:40	16.5	↓-0.1
12/15 22:50	16.7	↑0.2
12/15 23:00	17.1	↑0.4
12/15 23:10	17.6	↑0.5
12/15 23:20	18.4	↑0.8
12/15 23:30	19.3	↑0.9
12/15 23:40	20.4	↑1.1
12/15 23:50	21.7	↑1.3