21 (水)	08:21	17:53	-	-
	90cm	24cm	-	-
長潮 出 04:29 入 18:13 出 10:52 入 01:37

コイセボイ（北海道）2021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	↑0.6
4/21 00:10	50.5	↑0.7
4/21 00:20	51.1	↑0.6
4/21 00:30	51.8	↑0.7
4/21 00:40	52.5	↑0.7
4/21 00:50	53.2	↑0.7
4/21 01:00	53.9	↑0.7
4/21 01:10	54.7	↑0.8
4/21 01:20	55.4	↑0.7
4/21 01:30	56.2	↑0.8
4/21 01:40	57.0	↑0.8
4/21 01:50	57.8	↑0.8
4/21 02:00	58.7	↑0.9
4/21 02:10	59.5	↑0.8
4/21 02:20	60.4	↑0.9
4/21 02:30	61.3	↑0.9
4/21 02:40	62.2	↑0.9
4/21 02:50	63.2	↑1.0
4/21 03:00	64.2	↑1.0
4/21 03:10	65.2	↑1.0
4/21 03:20	66.2	↑1.0
4/21 03:30	67.2	↑1.0
4/21 03:40	68.2	↑1.0
4/21 03:50	69.3	↑1.1
4/21 04:00	70.3	↑1.0
4/21 04:10	71.4	↑1.1
4/21 04:20	72.5	↑1.1
4/21 04:30	73.6	↑1.1
4/21 04:40	74.6	↑1.0
4/21 04:50	75.7	↑1.1
4/21 05:00	76.8	↑1.1
4/21 05:10	77.8	↑1.0
4/21 05:20	78.8	↑1.0
4/21 05:30	79.8	↑1.0
4/21 05:40	80.8	↑1.0
4/21 05:50	81.8	↑1.0
4/21 06:00	82.7	↑0.9
4/21 06:10	83.6	↑0.9
4/21 06:20	84.4	↑0.8
4/21 06:30	85.2	↑0.8
4/21 06:40	86.0	↑0.8
4/21 06:50	86.7	↑0.7
4/21 07:00	87.3	↑0.6
4/21 07:10	87.9	↑0.6
4/21 07:20	88.4	↑0.5
4/21 07:30	88.8	↑0.4
4/21 07:40	89.2	↑0.4
4/21 07:50	89.4	↑0.2
4/21 08:00	89.6	↑0.2
4/21 08:10	89.8	↑0.2
4/21 08:20	89.8	0	満潮
4/21 08:30	89.8	0
4/21 08:40	89.6	↓-0.2
4/21 08:50	89.4	↓-0.2
4/21 09:00	89.1	↓-0.3
4/21 09:10	88.7	↓-0.4
4/21 09:20	88.2	↓-0.5
4/21 09:30	87.6	↓-0.6
4/21 09:40	86.9	↓-0.7
4/21 09:50	86.1	↓-0.8
4/21 10:00	85.3	↓-0.8
4/21 10:10	84.3	↓-1.0
4/21 10:20	83.3	↓-1.0
4/21 10:30	82.2	↓-1.1
4/21 10:40	81.0	↓-1.2
4/21 10:50	79.7	↓-1.3
4/21 11:00	78.4	↓-1.3
4/21 11:10	77.0	↓-1.4
4/21 11:20	75.5	↓-1.5
4/21 11:30	73.9	↓-1.6
4/21 11:40	72.3	↓-1.6
4/21 11:50	70.7	↓-1.6
4/21 12:00	69.0	↓-1.7
4/21 12:10	67.2	↓-1.8
4/21 12:20	65.5	↓-1.7
4/21 12:30	63.7	↓-1.8
4/21 12:40	61.8	↓-1.9	最大潮位差
4/21 12:50	60.0	↓-1.8
4/21 13:00	58.1	↓-1.9	最大潮位差
4/21 13:10	56.3	↓-1.8
4/21 13:20	54.4	↓-1.9	最大潮位差
4/21 13:30	52.6	↓-1.8
4/21 13:40	50.7	↓-1.9	最大潮位差
4/21 13:50	48.9	↓-1.8
4/21 14:00	47.1	↓-1.8
4/21 14:10	45.3	↓-1.8
4/21 14:20	43.6	↓-1.7
4/21 14:30	41.9	↓-1.7
4/21 14:40	40.3	↓-1.6
4/21 14:50	38.7	↓-1.6
4/21 15:00	37.2	↓-1.5
4/21 15:10	35.8	↓-1.4
4/21 15:20	34.4	↓-1.4
4/21 15:30	33.1	↓-1.3
4/21 15:40	31.9	↓-1.2
4/21 15:50	30.7	↓-1.2
4/21 16:00	29.6	↓-1.1
4/21 16:10	28.7	↓-0.9
4/21 16:20	27.8	↓-0.9
4/21 16:30	27.0	↓-0.8
4/21 16:40	26.3	↓-0.7
4/21 16:50	25.6	↓-0.7
4/21 17:00	25.1	↓-0.5
4/21 17:10	24.7	↓-0.4
4/21 17:20	24.3	↓-0.4
4/21 17:30	24.1	↓-0.2
4/21 17:40	23.9	↓-0.2
4/21 17:50	23.9	0	干潮
4/21 18:00	23.9	0
4/21 18:10	24.0	↑0.1
4/21 18:20	24.2	↑0.2
4/21 18:30	24.5	↑0.3
4/21 18:40	24.8	↑0.3
4/21 18:50	25.3	↑0.5
4/21 19:00	25.7	↑0.4
4/21 19:10	26.3	↑0.6
4/21 19:20	26.9	↑0.6
4/21 19:30	27.6	↑0.7
4/21 19:40	28.3	↑0.7
4/21 19:50	29.1	↑0.8
4/21 20:00	29.9	↑0.8
4/21 20:10	30.8	↑0.9
4/21 20:20	31.7	↑0.9
4/21 20:30	32.6	↑0.9
4/21 20:40	33.6	↑1.0
4/21 20:50	34.5	↑0.9
4/21 21:00	35.5	↑1.0
4/21 21:10	36.5	↑1.0
4/21 21:20	37.5	↑1.0
4/21 21:30	38.5	↑1.0
4/21 21:40	39.5	↑1.0
4/21 21:50	40.4	↑0.9
4/21 22:00	41.4	↑1.0
4/21 22:10	42.4	↑1.0
4/21 22:20	43.3	↑0.9
4/21 22:30	44.2	↑0.9
4/21 22:40	45.1	↑0.9
4/21 22:50	46.0	↑0.9
4/21 23:00	46.8	↑0.8
4/21 23:10	47.6	↑0.8
4/21 23:20	48.4	↑0.8
4/21 23:30	49.1	↑0.7
4/21 23:40	49.8	↑0.7
4/21 23:50	50.5	↑0.7