20 (土)	08:52	02:27	20:22	14:15
	78cm	48cm	84cm	62cm
小潮 出 06:52 入 15:46 出 11:34 入 23:56

コイセボイ（北海道）2042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	59.2	↓-1.5	最大潮位差
12/20 00:10	57.7	↓-1.5	最大潮位差
12/20 00:20	56.4	↓-1.3
12/20 00:30	55.1	↓-1.3
12/20 00:40	53.9	↓-1.2
12/20 00:50	52.7	↓-1.2
12/20 01:00	51.7	↓-1.0
12/20 01:10	50.8	↓-0.9
12/20 01:20	50.0	↓-0.8
12/20 01:30	49.3	↓-0.7
12/20 01:40	48.7	↓-0.6
12/20 01:50	48.3	↓-0.4
12/20 02:00	47.9	↓-0.4
12/20 02:10	47.7	↓-0.2
12/20 02:20	47.5	↓-0.2	干潮
12/20 02:30	47.5	0
12/20 02:40	47.6	↑0.1
12/20 02:50	47.9	↑0.3
12/20 03:00	48.2	↑0.3
12/20 03:10	48.6	↑0.4
12/20 03:20	49.1	↑0.5
12/20 03:30	49.8	↑0.7
12/20 03:40	50.5	↑0.7
12/20 03:50	51.3	↑0.8
12/20 04:00	52.1	↑0.8
12/20 04:10	53.1	↑1.0
12/20 04:20	54.1	↑1.0
12/20 04:30	55.1	↑1.0
12/20 04:40	56.2	↑1.1
12/20 04:50	57.4	↑1.2
12/20 05:00	58.6	↑1.2
12/20 05:10	59.8	↑1.2
12/20 05:20	61.0	↑1.2
12/20 05:30	62.2	↑1.2
12/20 05:40	63.4	↑1.2
12/20 05:50	64.6	↑1.2
12/20 06:00	65.8	↑1.2
12/20 06:10	67.0	↑1.2
12/20 06:20	68.1	↑1.1
12/20 06:30	69.2	↑1.1
12/20 06:40	70.2	↑1.0
12/20 06:50	71.2	↑1.0
12/20 07:00	72.1	↑0.9
12/20 07:10	73.0	↑0.9
12/20 07:20	73.8	↑0.8
12/20 07:30	74.5	↑0.7
12/20 07:40	75.1	↑0.6
12/20 07:50	75.7	↑0.6
12/20 08:00	76.2	↑0.5
12/20 08:10	76.5	↑0.3
12/20 08:20	76.9	↑0.4
12/20 08:30	77.1	↑0.2
12/20 08:40	77.2	↑0.1
12/20 08:50	77.2	0	満潮
12/20 09:00	77.2	0
12/20 09:10	77.1	↓-0.1
12/20 09:20	76.9	↓-0.2
12/20 09:30	76.6	↓-0.3
12/20 09:40	76.3	↓-0.3
12/20 09:50	75.9	↓-0.4
12/20 10:00	75.4	↓-0.5
12/20 10:10	74.8	↓-0.6
12/20 10:20	74.3	↓-0.5
12/20 10:30	73.6	↓-0.7
12/20 10:40	73.0	↓-0.6
12/20 10:50	72.2	↓-0.8
12/20 11:00	71.5	↓-0.7
12/20 11:10	70.7	↓-0.8
12/20 11:20	70.0	↓-0.7
12/20 11:30	69.2	↓-0.8
12/20 11:40	68.4	↓-0.8
12/20 11:50	67.7	↓-0.7
12/20 12:00	66.9	↓-0.8
12/20 12:10	66.2	↓-0.7
12/20 12:20	65.5	↓-0.7
12/20 12:30	64.8	↓-0.7
12/20 12:40	64.2	↓-0.6
12/20 12:50	63.6	↓-0.6
12/20 13:00	63.0	↓-0.6
12/20 13:10	62.6	↓-0.4
12/20 13:20	62.1	↓-0.5
12/20 13:30	61.8	↓-0.3
12/20 13:40	61.5	↓-0.3
12/20 13:50	61.3	↓-0.2
12/20 14:00	61.2	↓-0.1
12/20 14:10	61.1	↓-0.1	干潮
12/20 14:20	61.1	0
12/20 14:30	61.2	↑0.1
12/20 14:40	61.3	↑0.1
12/20 14:50	61.6	↑0.3
12/20 15:00	61.9	↑0.3
12/20 15:10	62.3	↑0.4
12/20 15:20	62.7	↑0.4
12/20 15:30	63.3	↑0.6
12/20 15:40	63.9	↑0.6
12/20 15:50	64.5	↑0.6
12/20 16:00	65.2	↑0.7
12/20 16:10	66.0	↑0.8
12/20 16:20	66.8	↑0.8
12/20 16:30	67.6	↑0.8
12/20 16:40	68.5	↑0.9
12/20 16:50	69.4	↑0.9
12/20 17:00	70.3	↑0.9
12/20 17:10	71.3	↑1.0
12/20 17:20	72.2	↑0.9
12/20 17:30	73.2	↑1.0
12/20 17:40	74.2	↑1.0
12/20 17:50	75.1	↑0.9
12/20 18:00	76.0	↑0.9
12/20 18:10	76.9	↑0.9
12/20 18:20	77.8	↑0.9
12/20 18:30	78.6	↑0.8
12/20 18:40	79.3	↑0.7
12/20 18:50	80.1	↑0.8
12/20 19:00	80.7	↑0.6
12/20 19:10	81.3	↑0.6
12/20 19:20	81.9	↑0.6
12/20 19:30	82.3	↑0.4
12/20 19:40	82.7	↑0.4
12/20 19:50	83.0	↑0.3
12/20 20:00	83.2	↑0.2
12/20 20:10	83.4	↑0.2
12/20 20:20	83.4	0	満潮
12/20 20:30	83.4	0
12/20 20:40	83.3	↓-0.1
12/20 20:50	83.1	↓-0.2
12/20 21:00	82.8	↓-0.3
12/20 21:10	82.4	↓-0.4
12/20 21:20	82.0	↓-0.4
12/20 21:30	81.4	↓-0.6
12/20 21:40	80.8	↓-0.6
12/20 21:50	80.1	↓-0.7
12/20 22:00	79.3	↓-0.8
12/20 22:10	78.5	↓-0.8
12/20 22:20	77.6	↓-0.9
12/20 22:30	76.7	↓-0.9
12/20 22:40	75.7	↓-1.0
12/20 22:50	74.6	↓-1.1
12/20 23:00	73.6	↓-1.0
12/20 23:10	72.5	↓-1.1
12/20 23:20	71.3	↓-1.2
12/20 23:30	70.2	↓-1.1
12/20 23:40	69.0	↓-1.2
12/20 23:50	67.9	↓-1.1