21 (土)	08:54	18:13	-	-
	88cm	25cm	-	-
若潮 出 04:28 入 18:13 出 11:33 入 02:02

コイセボイ（北海道）2040年04月21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
4/21 00:00	49.8	↑0.7
4/21 00:10	50.4	↑0.6
4/21 00:20	51.1	↑0.7
4/21 00:30	51.7	↑0.6
4/21 00:40	52.3	↑0.6
4/21 00:50	53.0	↑0.7
4/21 01:00	53.6	↑0.6
4/21 01:10	54.3	↑0.7
4/21 01:20	54.9	↑0.6
4/21 01:30	55.6	↑0.7
4/21 01:40	56.3	↑0.7
4/21 01:50	56.9	↑0.6
4/21 02:00	57.6	↑0.7
4/21 02:10	58.3	↑0.7
4/21 02:20	59.1	↑0.8
4/21 02:30	59.8	↑0.7
4/21 02:40	60.6	↑0.8
4/21 02:50	61.3	↑0.7
4/21 03:00	62.1	↑0.8
4/21 03:10	62.9	↑0.8
4/21 03:20	63.8	↑0.9
4/21 03:30	64.6	↑0.8
4/21 03:40	65.5	↑0.9
4/21 03:50	66.3	↑0.8
4/21 04:00	67.2	↑0.9
4/21 04:10	68.1	↑0.9
4/21 04:20	69.1	↑1.0
4/21 04:30	70.0	↑0.9
4/21 04:40	70.9	↑0.9
4/21 04:50	71.9	↑1.0
4/21 05:00	72.8	↑0.9
4/21 05:10	73.8	↑1.0
4/21 05:20	74.7	↑0.9
4/21 05:30	75.7	↑1.0
4/21 05:40	76.6	↑0.9
4/21 05:50	77.5	↑0.9
4/21 06:00	78.5	↑1.0
4/21 06:10	79.4	↑0.9
4/21 06:20	80.2	↑0.8
4/21 06:30	81.1	↑0.9
4/21 06:40	81.9	↑0.8
4/21 06:50	82.7	↑0.8
4/21 07:00	83.4	↑0.7
4/21 07:10	84.1	↑0.7
4/21 07:20	84.8	↑0.7
4/21 07:30	85.4	↑0.6
4/21 07:40	85.9	↑0.5
4/21 07:50	86.4	↑0.5
4/21 08:00	86.8	↑0.4
4/21 08:10	87.2	↑0.4
4/21 08:20	87.5	↑0.3
4/21 08:30	87.7	↑0.2
4/21 08:40	87.8	↑0.1
4/21 08:50	87.9	↑0.1	満潮
4/21 09:00	87.9	0
4/21 09:10	87.8	↓-0.1
4/21 09:20	87.6	↓-0.2
4/21 09:30	87.3	↓-0.3
4/21 09:40	86.9	↓-0.4
4/21 09:50	86.5	↓-0.4
4/21 10:00	86.0	↓-0.5
4/21 10:10	85.3	↓-0.7
4/21 10:20	84.6	↓-0.7
4/21 10:30	83.8	↓-0.8
4/21 10:40	82.9	↓-0.9
4/21 10:50	81.9	↓-1.0
4/21 11:00	80.9	↓-1.0
4/21 11:10	79.7	↓-1.2
4/21 11:20	78.5	↓-1.2
4/21 11:30	77.2	↓-1.3
4/21 11:40	75.9	↓-1.3
4/21 11:50	74.4	↓-1.5
4/21 12:00	72.9	↓-1.5
4/21 12:10	71.4	↓-1.5
4/21 12:20	69.8	↓-1.6
4/21 12:30	68.1	↓-1.7
4/21 12:40	66.4	↓-1.7
4/21 12:50	64.7	↓-1.7
4/21 13:00	62.9	↓-1.8
4/21 13:10	61.1	↓-1.8
4/21 13:20	59.3	↓-1.8
4/21 13:30	57.4	↓-1.9	最大潮位差
4/21 13:40	55.6	↓-1.8
4/21 13:50	53.8	↓-1.8
4/21 14:00	51.9	↓-1.9	最大潮位差
4/21 14:10	50.1	↓-1.8
4/21 14:20	48.3	↓-1.8
4/21 14:30	46.5	↓-1.8
4/21 14:40	44.8	↓-1.7
4/21 14:50	43.1	↓-1.7
4/21 15:00	41.4	↓-1.7
4/21 15:10	39.8	↓-1.6
4/21 15:20	38.3	↓-1.5
4/21 15:30	36.8	↓-1.5
4/21 15:40	35.3	↓-1.5
4/21 15:50	34.0	↓-1.3
4/21 16:00	32.7	↓-1.3
4/21 16:10	31.5	↓-1.2
4/21 16:20	30.4	↓-1.1
4/21 16:30	29.4	↓-1.0
4/21 16:40	28.4	↓-1.0
4/21 16:50	27.6	↓-0.8
4/21 17:00	26.8	↓-0.8
4/21 17:10	26.2	↓-0.6
4/21 17:20	25.6	↓-0.6
4/21 17:30	25.2	↓-0.4
4/21 17:40	24.8	↓-0.4
4/21 17:50	24.6	↓-0.2
4/21 18:00	24.4	↓-0.2
4/21 18:10	24.3	↓-0.1	干潮
4/21 18:20	24.3	0
4/21 18:30	24.5	↑0.2
4/21 18:40	24.7	↑0.2
4/21 18:50	25.0	↑0.3
4/21 19:00	25.3	↑0.3
4/21 19:10	25.8	↑0.5
4/21 19:20	26.3	↑0.5
4/21 19:30	26.9	↑0.6
4/21 19:40	27.6	↑0.7
4/21 19:50	28.4	↑0.8
4/21 20:00	29.1	↑0.7
4/21 20:10	30.0	↑0.9
4/21 20:20	30.9	↑0.9
4/21 20:30	31.8	↑0.9
4/21 20:40	32.8	↑1.0
4/21 20:50	33.8	↑1.0
4/21 21:00	34.8	↑1.0
4/21 21:10	35.8	↑1.0
4/21 21:20	36.9	↑1.1
4/21 21:30	37.9	↑1.0
4/21 21:40	39.0	↑1.1
4/21 21:50	40.1	↑1.1
4/21 22:00	41.1	↑1.0
4/21 22:10	42.2	↑1.1
4/21 22:20	43.2	↑1.0
4/21 22:30	44.2	↑1.0
4/21 22:40	45.1	↑0.9
4/21 22:50	46.1	↑1.0
4/21 23:00	47.0	↑0.9
4/21 23:10	47.9	↑0.9
4/21 23:20	48.7	↑0.8
4/21 23:30	49.5	↑0.8
4/21 23:40	50.3	↑0.8
4/21 23:50	51.0	↑0.7