21 (土)	07:18	00:11	18:08	11:50
	79cm	39cm	93cm	68cm
若潮 出 05:40 入 18:54 出 12:59 入 02:31

八幡（福岡）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	38.9	↓-0.2
4/21 00:10	38.8	↓-0.1	干潮
4/21 00:20	38.9	↑0.1
4/21 00:30	39.1	↑0.2
4/21 00:40	39.4	↑0.3
4/21 00:50	39.8	↑0.4
4/21 01:00	40.3	↑0.5
4/21 01:10	41.0	↑0.7
4/21 01:20	41.7	↑0.7
4/21 01:30	42.6	↑0.9
4/21 01:40	43.5	↑0.9
4/21 01:50	44.6	↑1.1
4/21 02:00	45.7	↑1.1
4/21 02:10	46.9	↑1.2
4/21 02:20	48.1	↑1.2
4/21 02:30	49.5	↑1.4
4/21 02:40	50.8	↑1.3
4/21 02:50	52.2	↑1.4
4/21 03:00	53.7	↑1.5
4/21 03:10	55.1	↑1.4
4/21 03:20	56.6	↑1.5
4/21 03:30	58.1	↑1.5
4/21 03:40	59.5	↑1.4
4/21 03:50	61.0	↑1.5
4/21 04:00	62.4	↑1.4
4/21 04:10	63.8	↑1.4
4/21 04:20	65.2	↑1.4
4/21 04:30	66.5	↑1.3
4/21 04:40	67.8	↑1.3
4/21 04:50	69.0	↑1.2
4/21 05:00	70.2	↑1.2
4/21 05:10	71.3	↑1.1
4/21 05:20	72.4	↑1.1
4/21 05:30	73.4	↑1.0
4/21 05:40	74.3	↑0.9
4/21 05:50	75.2	↑0.9
4/21 06:00	75.9	↑0.7
4/21 06:10	76.6	↑0.7
4/21 06:20	77.2	↑0.6
4/21 06:30	77.7	↑0.5
4/21 06:40	78.1	↑0.4
4/21 06:50	78.5	↑0.4
4/21 07:00	78.7	↑0.2
4/21 07:10	78.8	↑0.1	満潮
4/21 07:20	78.8	0
4/21 07:30	78.8	0
4/21 07:40	78.6	↓-0.2
4/21 07:50	78.3	↓-0.3
4/21 08:00	78.0	↓-0.3
4/21 08:10	77.6	↓-0.4
4/21 08:20	77.1	↓-0.5
4/21 08:30	76.5	↓-0.6
4/21 08:40	75.9	↓-0.6
4/21 08:50	75.3	↓-0.6
4/21 09:00	74.6	↓-0.7
4/21 09:10	73.9	↓-0.7
4/21 09:20	73.2	↓-0.7
4/21 09:30	72.6	↓-0.6
4/21 09:40	71.9	↓-0.7
4/21 09:50	71.2	↓-0.7
4/21 10:00	70.6	↓-0.6
4/21 10:10	70.0	↓-0.6
4/21 10:20	69.5	↓-0.5
4/21 10:30	69.0	↓-0.5
4/21 10:40	68.5	↓-0.5
4/21 10:50	68.1	↓-0.4
4/21 11:00	67.8	↓-0.3
4/21 11:10	67.5	↓-0.3
4/21 11:20	67.3	↓-0.2
4/21 11:30	67.2	↓-0.1
4/21 11:40	67.1	↓-0.1	干潮
4/21 11:50	67.0	↓-0.1	干潮
4/21 12:00	67.1	↑0.1
4/21 12:10	67.2	↑0.1
4/21 12:20	67.3	↑0.1
4/21 12:30	67.6	↑0.3
4/21 12:40	67.9	↑0.3
4/21 12:50	68.3	↑0.4
4/21 13:00	68.7	↑0.4
4/21 13:10	69.2	↑0.5
4/21 13:20	69.8	↑0.6
4/21 13:30	70.5	↑0.7
4/21 13:40	71.2	↑0.7
4/21 13:50	72.0	↑0.8
4/21 14:00	72.8	↑0.8
4/21 14:10	73.7	↑0.9
4/21 14:20	74.7	↑1.0
4/21 14:30	75.6	↑0.9
4/21 14:40	76.7	↑1.1
4/21 14:50	77.7	↑1.0
4/21 15:00	78.8	↑1.1
4/21 15:10	79.8	↑1.0
4/21 15:20	80.9	↑1.1
4/21 15:30	82.0	↑1.1
4/21 15:40	83.1	↑1.1
4/21 15:50	84.1	↑1.0
4/21 16:00	85.1	↑1.0
4/21 16:10	86.1	↑1.0
4/21 16:20	87.0	↑0.9
4/21 16:30	87.9	↑0.9
4/21 16:40	88.7	↑0.8
4/21 16:50	89.4	↑0.7
4/21 17:00	90.1	↑0.7
4/21 17:10	90.7	↑0.6
4/21 17:20	91.3	↑0.6
4/21 17:30	91.7	↑0.4
4/21 17:40	92.1	↑0.4
4/21 17:50	92.3	↑0.2
4/21 18:00	92.4	↑0.1	満潮
4/21 18:10	92.5	↑0.1
4/21 18:20	92.4	↓-0.1
4/21 18:30	92.1	↓-0.3
4/21 18:40	91.7	↓-0.4
4/21 18:50	91.2	↓-0.5
4/21 19:00	90.5	↓-0.7
4/21 19:10	89.7	↓-0.8
4/21 19:20	88.7	↓-1.0
4/21 19:30	87.6	↓-1.1
4/21 19:40	86.3	↓-1.3
4/21 19:50	84.8	↓-1.5
4/21 20:00	83.2	↓-1.6
4/21 20:10	81.5	↓-1.7
4/21 20:20	79.6	↓-1.9
4/21 20:30	77.7	↓-1.9
4/21 20:40	75.6	↓-2.1
4/21 20:50	73.4	↓-2.2
4/21 21:00	71.2	↓-2.2
4/21 21:10	68.9	↓-2.3
4/21 21:20	66.5	↓-2.4	最大潮位差
4/21 21:30	64.2	↓-2.3
4/21 21:40	61.8	↓-2.4	最大潮位差
4/21 21:50	59.4	↓-2.4	最大潮位差
4/21 22:00	57.1	↓-2.3
4/21 22:10	54.8	↓-2.3
4/21 22:20	52.5	↓-2.3
4/21 22:30	50.4	↓-2.1
4/21 22:40	48.3	↓-2.1
4/21 22:50	46.3	↓-2.0
4/21 23:00	44.3	↓-2.0
4/21 23:10	42.5	↓-1.8
4/21 23:20	40.8	↓-1.7
4/21 23:30	39.2	↓-1.6
4/21 23:40	37.8	↓-1.4
4/21 23:50	36.5	↓-1.3