20 (木)	06:59	00:21	18:50	12:40
	88cm	40cm	98cm	57cm
長潮 出 05:42 入 18:53 出 13:50 入 02:16

八幡（福岡）2051年04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
4/20 00:00	39.8	↓-0.4
4/20 00:10	39.6	↓-0.2
4/20 00:20	39.5	↓-0.1	干潮
4/20 00:30	39.6	↑0.1
4/20 00:40	39.9	↑0.3
4/20 00:50	40.3	↑0.4
4/20 01:00	40.8	↑0.5
4/20 01:10	41.6	↑0.8
4/20 01:20	42.4	↑0.8
4/20 01:30	43.4	↑1.0
4/20 01:40	44.5	↑1.1
4/20 01:50	45.8	↑1.3
4/20 02:00	47.2	↑1.4
4/20 02:10	48.6	↑1.4
4/20 02:20	50.2	↑1.6
4/20 02:30	51.9	↑1.7
4/20 02:40	53.6	↑1.7
4/20 02:50	55.3	↑1.7
4/20 03:00	57.1	↑1.8
4/20 03:10	59.0	↑1.9
4/20 03:20	60.8	↑1.8
4/20 03:30	62.7	↑1.9
4/20 03:40	64.6	↑1.9
4/20 03:50	66.4	↑1.8
4/20 04:00	68.2	↑1.8
4/20 04:10	70.0	↑1.8
4/20 04:20	71.7	↑1.7
4/20 04:30	73.4	↑1.7
4/20 04:40	75.0	↑1.6
4/20 04:50	76.5	↑1.5
4/20 05:00	78.0	↑1.5
4/20 05:10	79.4	↑1.4
4/20 05:20	80.6	↑1.2
4/20 05:30	81.8	↑1.2
4/20 05:40	82.9	↑1.1
4/20 05:50	83.9	↑1.0
4/20 06:00	84.7	↑0.8
4/20 06:10	85.4	↑0.7
4/20 06:20	86.0	↑0.6
4/20 06:30	86.5	↑0.5
4/20 06:40	86.8	↑0.3
4/20 06:50	87.0	↑0.2	満潮
4/20 07:00	87.0	0
4/20 07:10	86.9	↓-0.1
4/20 07:20	86.7	↓-0.2
4/20 07:30	86.3	↓-0.4
4/20 07:40	85.7	↓-0.6
4/20 07:50	85.1	↓-0.6
4/20 08:00	84.3	↓-0.8
4/20 08:10	83.4	↓-0.9
4/20 08:20	82.4	↓-1.0
4/20 08:30	81.3	↓-1.1
4/20 08:40	80.2	↓-1.1
4/20 08:50	78.9	↓-1.3
4/20 09:00	77.6	↓-1.3
4/20 09:10	76.3	↓-1.3
4/20 09:20	74.9	↓-1.4
4/20 09:30	73.5	↓-1.4
4/20 09:40	72.1	↓-1.4
4/20 09:50	70.7	↓-1.4
4/20 10:00	69.3	↓-1.4
4/20 10:10	68.0	↓-1.3
4/20 10:20	66.7	↓-1.3
4/20 10:30	65.4	↓-1.3
4/20 10:40	64.2	↓-1.2
4/20 10:50	63.0	↓-1.2
4/20 11:00	62.0	↓-1.0
4/20 11:10	61.0	↓-1.0
4/20 11:20	60.1	↓-0.9
4/20 11:30	59.2	↓-0.9
4/20 11:40	58.5	↓-0.7
4/20 11:50	57.9	↓-0.6
4/20 12:00	57.3	↓-0.6
4/20 12:10	56.9	↓-0.4
4/20 12:20	56.6	↓-0.3
4/20 12:30	56.5	↓-0.1	干潮
4/20 12:40	56.4	↓-0.1	干潮
4/20 12:50	56.5	↑0.1
4/20 13:00	56.7	↑0.2
4/20 13:10	57.0	↑0.3
4/20 13:20	57.5	↑0.5
4/20 13:30	58.1	↑0.6
4/20 13:40	58.8	↑0.7
4/20 13:50	59.6	↑0.8
4/20 14:00	60.6	↑1.0
4/20 14:10	61.6	↑1.0
4/20 14:20	62.8	↑1.2
4/20 14:30	64.1	↑1.3
4/20 14:40	65.5	↑1.4
4/20 14:50	66.9	↑1.4
4/20 15:00	68.4	↑1.5
4/20 15:10	70.0	↑1.6
4/20 15:20	71.6	↑1.6
4/20 15:30	73.3	↑1.7
4/20 15:40	75.0	↑1.7
4/20 15:50	76.7	↑1.7
4/20 16:00	78.4	↑1.7
4/20 16:10	80.1	↑1.7
4/20 16:20	81.8	↑1.7
4/20 16:30	83.4	↑1.6
4/20 16:40	85.0	↑1.6
4/20 16:50	86.6	↑1.6
4/20 17:00	88.1	↑1.5
4/20 17:10	89.5	↑1.4
4/20 17:20	90.9	↑1.4
4/20 17:30	92.1	↑1.2
4/20 17:40	93.3	↑1.2
4/20 17:50	94.3	↑1.0
4/20 18:00	95.2	↑0.9
4/20 18:10	95.9	↑0.7
4/20 18:20	96.5	↑0.6
4/20 18:30	97.0	↑0.5
4/20 18:40	97.2	↑0.2	満潮
4/20 18:50	97.3	↑0.1	満潮
4/20 19:00	97.2	↓-0.1
4/20 19:10	96.9	↓-0.3
4/20 19:20	96.4	↓-0.5
4/20 19:30	95.7	↓-0.7
4/20 19:40	94.8	↓-0.9
4/20 19:50	93.7	↓-1.1
4/20 20:00	92.4	↓-1.3
4/20 20:10	91.0	↓-1.4
4/20 20:20	89.4	↓-1.6
4/20 20:30	87.6	↓-1.8
4/20 20:40	85.6	↓-2.0
4/20 20:50	83.6	↓-2.0
4/20 21:00	81.4	↓-2.2
4/20 21:10	79.2	↓-2.2
4/20 21:20	76.8	↓-2.4
4/20 21:30	74.4	↓-2.4
4/20 21:40	72.0	↓-2.4
4/20 21:50	69.6	↓-2.4
4/20 22:00	67.1	↓-2.5	最大潮位差
4/20 22:10	64.7	↓-2.4
4/20 22:20	62.2	↓-2.5	最大潮位差
4/20 22:30	59.9	↓-2.3
4/20 22:40	57.5	↓-2.4
4/20 22:50	55.3	↓-2.2
4/20 23:00	53.1	↓-2.2
4/20 23:10	51.1	↓-2.0
4/20 23:20	49.1	↓-2.0
4/20 23:30	47.2	↓-1.9
4/20 23:40	45.5	↓-1.7
4/20 23:50	43.9	↓-1.6