20 (金)	10:26	04:28	23:08	16:49
	143cm	11cm	132cm	-7cm
大潮 出 05:41 入 18:53 出 19:52 入 06:19

八幡（福岡）2057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	110.7	↓-4.2
4/20 00:10	106.1	↓-4.6
4/20 00:20	101.2	↓-4.9
4/20 00:30	96.2	↓-5.0
4/20 00:40	91.0	↓-5.2
4/20 00:50	85.6	↓-5.4
4/20 01:00	80.2	↓-5.4
4/20 01:10	74.8	↓-5.4
4/20 01:20	69.5	↓-5.3
4/20 01:30	64.2	↓-5.3
4/20 01:40	59.1	↓-5.1
4/20 01:50	54.0	↓-5.1
4/20 02:00	49.2	↓-4.8
4/20 02:10	44.6	↓-4.6
4/20 02:20	40.2	↓-4.4
4/20 02:30	36.0	↓-4.2
4/20 02:40	32.1	↓-3.9
4/20 02:50	28.5	↓-3.6
4/20 03:00	25.1	↓-3.4
4/20 03:10	22.1	↓-3.0
4/20 03:20	19.4	↓-2.7
4/20 03:30	17.0	↓-2.4
4/20 03:40	14.9	↓-2.1
4/20 03:50	13.3	↓-1.6
4/20 04:00	12.0	↓-1.3
4/20 04:10	11.0	↓-1.0
4/20 04:20	10.5	↓-0.5	干潮
4/20 04:30	10.5	0
4/20 04:40	10.8	↑0.3
4/20 04:50	11.7	↑0.9
4/20 05:00	13.0	↑1.3
4/20 05:10	14.7	↑1.7
4/20 05:20	16.9	↑2.2
4/20 05:30	19.6	↑2.7
4/20 05:40	22.7	↑3.1
4/20 05:50	26.2	↑3.5
4/20 06:00	30.2	↑4.0
4/20 06:10	34.5	↑4.3
4/20 06:20	39.2	↑4.7
4/20 06:30	44.2	↑5.0
4/20 06:40	49.4	↑5.2
4/20 06:50	54.9	↑5.5
4/20 07:00	60.5	↑5.6
4/20 07:10	66.2	↑5.7
4/20 07:20	72.1	↑5.9
4/20 07:30	77.9	↑5.8
4/20 07:40	83.8	↑5.9
4/20 07:50	89.5	↑5.7
4/20 08:00	95.2	↑5.7
4/20 08:10	100.7	↑5.5
4/20 08:20	106.0	↑5.3
4/20 08:30	111.1	↑5.1
4/20 08:40	115.9	↑4.8
4/20 08:50	120.5	↑4.6
4/20 09:00	124.7	↑4.2
4/20 09:10	128.5	↑3.8
4/20 09:20	131.9	↑3.4
4/20 09:30	135.0	↑3.1
4/20 09:40	137.5	↑2.5
4/20 09:50	139.6	↑2.1
4/20 10:00	141.2	↑1.6
4/20 10:10	142.3	↑1.1
4/20 10:20	142.8	↑0.5	満潮
4/20 10:30	142.8	0
4/20 10:40	142.2	↓-0.6
4/20 10:50	141.0	↓-1.2
4/20 11:00	139.3	↓-1.7
4/20 11:10	137.0	↓-2.3
4/20 11:20	134.1	↓-2.9
4/20 11:30	130.7	↓-3.4
4/20 11:40	126.8	↓-3.9
4/20 11:50	122.4	↓-4.4
4/20 12:00	117.6	↓-4.8
4/20 12:10	112.4	↓-5.2
4/20 12:20	106.8	↓-5.6
4/20 12:30	101.0	↓-5.8
4/20 12:40	94.9	↓-6.1
4/20 12:50	88.7	↓-6.2
4/20 13:00	82.3	↓-6.4	最大潮位差
4/20 13:10	75.9	↓-6.4	最大潮位差
4/20 13:20	69.5	↓-6.4	最大潮位差
4/20 13:30	63.2	↓-6.3
4/20 13:40	57.0	↓-6.2
4/20 13:50	50.9	↓-6.1
4/20 14:00	45.0	↓-5.9
4/20 14:10	39.3	↓-5.7
4/20 14:20	33.9	↓-5.4
4/20 14:30	28.7	↓-5.2
4/20 14:40	23.9	↓-4.8
4/20 14:50	19.3	↓-4.6
4/20 15:00	15.1	↓-4.2
4/20 15:10	11.2	↓-3.9
4/20 15:20	7.6	↓-3.6
4/20 15:30	4.4	↓-3.2
4/20 15:40	1.5	↓-2.9
4/20 15:50	-1.0	↓-2.5
4/20 16:00	-3.1	↓-2.1
4/20 16:10	-4.9	↓-1.8
4/20 16:20	-6.3	↓-1.4
4/20 16:30	-7.2	↓-0.9
4/20 16:40	-7.8	↓-0.6	干潮
4/20 16:50	-7.9	↓-0.1
4/20 17:00	-7.6	↑0.3
4/20 17:10	-6.8	↑0.8
4/20 17:20	-5.6	↑1.2
4/20 17:30	-4.0	↑1.6
4/20 17:40	-1.9	↑2.1
4/20 17:50	0.7	↑2.6
4/20 18:00	3.6	↑2.9
4/20 18:10	7.0	↑3.4
4/20 18:20	10.8	↑3.8
4/20 18:30	14.9	↑4.1
4/20 18:40	19.4	↑4.5
4/20 18:50	24.1	↑4.7
4/20 19:00	29.2	↑5.1
4/20 19:10	34.4	↑5.2
4/20 19:20	39.9	↑5.5
4/20 19:30	45.5	↑5.6
4/20 19:40	51.1	↑5.6
4/20 19:50	56.9	↑5.8
4/20 20:00	62.6	↑5.7
4/20 20:10	68.4	↑5.8
4/20 20:20	74.0	↑5.6
4/20 20:30	79.6	↑5.6
4/20 20:40	85.1	↑5.5
4/20 20:50	90.3	↑5.2
4/20 21:00	95.4	↑5.1
4/20 21:10	100.3	↑4.9
4/20 21:20	104.9	↑4.6
4/20 21:30	109.3	↑4.4
4/20 21:40	113.3	↑4.0
4/20 21:50	117.0	↑3.7
4/20 22:00	120.3	↑3.3
4/20 22:10	123.3	↑3.0
4/20 22:20	125.8	↑2.5
4/20 22:30	127.9	↑2.1
4/20 22:40	129.5	↑1.6
4/20 22:50	130.7	↑1.2
4/20 23:00	131.3	↑0.6	満潮
4/20 23:10	131.4	↑0.1
4/20 23:20	131.0	↓-0.4
4/20 23:30	130.1	↓-0.9
4/20 23:40	128.7	↓-1.4
4/20 23:50	126.8	↓-1.9