12 (金)	08:45	17:36	-	-
	87cm	32cm	-	-
長潮 出 04:44 入 18:02 出 11:18 入 01:08

コイセボイ（北海道）2030年04月12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
4/12 00:00	49.8	↑0.3
4/12 00:10	50.1	↑0.3
4/12 00:20	50.4	↑0.3
4/12 00:30	50.7	↑0.3
4/12 00:40	51.1	↑0.4
4/12 00:50	51.4	↑0.3
4/12 01:00	51.8	↑0.4
4/12 01:10	52.2	↑0.4
4/12 01:20	52.6	↑0.4
4/12 01:30	53.1	↑0.5
4/12 01:40	53.6	↑0.5
4/12 01:50	54.1	↑0.5
4/12 02:00	54.7	↑0.6
4/12 02:10	55.2	↑0.5
4/12 02:20	55.9	↑0.7
4/12 02:30	56.5	↑0.6
4/12 02:40	57.2	↑0.7
4/12 02:50	57.9	↑0.7
4/12 03:00	58.7	↑0.8
4/12 03:10	59.5	↑0.8
4/12 03:20	60.3	↑0.8
4/12 03:30	61.2	↑0.9
4/12 03:40	62.1	↑0.9
4/12 03:50	63.0	↑0.9
4/12 04:00	64.0	↑1.0
4/12 04:10	65.0	↑1.0
4/12 04:20	66.0	↑1.0
4/12 04:30	67.0	↑1.0
4/12 04:40	68.0	↑1.0
4/12 04:50	69.1	↑1.1
4/12 05:00	70.1	↑1.0
4/12 05:10	71.2	↑1.1
4/12 05:20	72.3	↑1.1
4/12 05:30	73.3	↑1.0
4/12 05:40	74.4	↑1.1
4/12 05:50	75.4	↑1.0
4/12 06:00	76.4	↑1.0
4/12 06:10	77.4	↑1.0
4/12 06:20	78.3	↑0.9
4/12 06:30	79.2	↑0.9
4/12 06:40	80.1	↑0.9
4/12 06:50	81.0	↑0.9
4/12 07:00	81.7	↑0.7
4/12 07:10	82.5	↑0.8
4/12 07:20	83.2	↑0.7
4/12 07:30	83.8	↑0.6
4/12 07:40	84.3	↑0.5
4/12 07:50	84.8	↑0.5
4/12 08:00	85.2	↑0.4
4/12 08:10	85.5	↑0.3
4/12 08:20	85.8	↑0.3
4/12 08:30	85.9	↑0.1
4/12 08:40	86.0	↑0.1	満潮
4/12 08:50	86.0	0
4/12 09:00	85.9	↓-0.1
4/12 09:10	85.7	↓-0.2
4/12 09:20	85.4	↓-0.3
4/12 09:30	85.1	↓-0.3
4/12 09:40	84.6	↓-0.5
4/12 09:50	84.1	↓-0.5
4/12 10:00	83.4	↓-0.7
4/12 10:10	82.7	↓-0.7
4/12 10:20	81.9	↓-0.8
4/12 10:30	81.0	↓-0.9
4/12 10:40	80.0	↓-1.0
4/12 10:50	79.0	↓-1.0
4/12 11:00	77.8	↓-1.2
4/12 11:10	76.6	↓-1.2
4/12 11:20	75.4	↓-1.2
4/12 11:30	74.0	↓-1.4
4/12 11:40	72.6	↓-1.4
4/12 11:50	71.2	↓-1.4
4/12 12:00	69.7	↓-1.5
4/12 12:10	68.2	↓-1.5
4/12 12:20	66.6	↓-1.6
4/12 12:30	65.0	↓-1.6
4/12 12:40	63.4	↓-1.6
4/12 12:50	61.8	↓-1.6
4/12 13:00	60.1	↓-1.7	最大潮位差
4/12 13:10	58.5	↓-1.6
4/12 13:20	56.8	↓-1.7	最大潮位差
4/12 13:30	55.2	↓-1.6
4/12 13:40	53.6	↓-1.6
4/12 13:50	52.0	↓-1.6
4/12 14:00	50.4	↓-1.6
4/12 14:10	48.8	↓-1.6
4/12 14:20	47.3	↓-1.5
4/12 14:30	45.9	↓-1.4
4/12 14:40	44.5	↓-1.4
4/12 14:50	43.1	↓-1.4
4/12 15:00	41.8	↓-1.3
4/12 15:10	40.6	↓-1.2
4/12 15:20	39.4	↓-1.2
4/12 15:30	38.3	↓-1.1
4/12 15:40	37.3	↓-1.0
4/12 15:50	36.3	↓-1.0
4/12 16:00	35.5	↓-0.8
4/12 16:10	34.7	↓-0.8
4/12 16:20	34.0	↓-0.7
4/12 16:30	33.4	↓-0.6
4/12 16:40	32.9	↓-0.5
4/12 16:50	32.5	↓-0.4
4/12 17:00	32.1	↓-0.4
4/12 17:10	31.9	↓-0.2
4/12 17:20	31.7	↓-0.2
4/12 17:30	31.6	↓-0.1	干潮
4/12 17:40	31.6	0
4/12 17:50	31.7	↑0.1
4/12 18:00	31.8	↑0.1
4/12 18:10	32.1	↑0.3
4/12 18:20	32.4	↑0.3
4/12 18:30	32.7	↑0.3
4/12 18:40	33.2	↑0.5
4/12 18:50	33.7	↑0.5
4/12 19:00	34.2	↑0.5
4/12 19:10	34.8	↑0.6
4/12 19:20	35.4	↑0.6
4/12 19:30	36.1	↑0.7
4/12 19:40	36.9	↑0.8
4/12 19:50	37.6	↑0.7
4/12 20:00	38.4	↑0.8
4/12 20:10	39.2	↑0.8
4/12 20:20	40.0	↑0.8
4/12 20:30	40.8	↑0.8
4/12 20:40	41.7	↑0.9
4/12 20:50	42.5	↑0.8
4/12 21:00	43.3	↑0.8
4/12 21:10	44.1	↑0.8
4/12 21:20	44.9	↑0.8
4/12 21:30	45.7	↑0.8
4/12 21:40	46.5	↑0.8
4/12 21:50	47.2	↑0.7
4/12 22:00	47.9	↑0.7
4/12 22:10	48.6	↑0.7
4/12 22:20	49.2	↑0.6
4/12 22:30	49.8	↑0.6
4/12 22:40	50.4	↑0.6
4/12 22:50	50.9	↑0.5
4/12 23:00	51.4	↑0.5
4/12 23:10	51.9	↑0.5
4/12 23:20	52.3	↑0.4
4/12 23:30	52.6	↑0.3
4/12 23:40	52.9	↑0.3
4/12 23:50	53.2	↑0.3