20 (火)	10:25	04:29	23:08	16:51
	147cm	9cm	135cm	-10cm
大潮 出 05:42 入 18:53 出 19:54 入 06:21

八幡（福岡）2038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	113.2	↓-4.5
4/20 00:10	108.4	↓-4.8
4/20 00:20	103.4	↓-5.0
4/20 00:30	98.1	↓-5.3
4/20 00:40	92.7	↓-5.4
4/20 00:50	87.2	↓-5.5
4/20 01:00	81.7	↓-5.5
4/20 01:10	76.2	↓-5.5
4/20 01:20	70.7	↓-5.5
4/20 01:30	65.2	↓-5.5
4/20 01:40	59.9	↓-5.3
4/20 01:50	54.8	↓-5.1
4/20 02:00	49.8	↓-5.0
4/20 02:10	44.9	↓-4.9
4/20 02:20	40.3	↓-4.6
4/20 02:30	36.0	↓-4.3
4/20 02:40	31.8	↓-4.2
4/20 02:50	28.0	↓-3.8
4/20 03:00	24.4	↓-3.6
4/20 03:10	21.2	↓-3.2
4/20 03:20	18.2	↓-3.0
4/20 03:30	15.6	↓-2.6
4/20 03:40	13.4	↓-2.2
4/20 03:50	11.5	↓-1.9
4/20 04:00	10.0	↓-1.5
4/20 04:10	9.0	↓-1.0
4/20 04:20	8.4	↓-0.6	干潮
4/20 04:30	8.3	↓-0.1
4/20 04:40	8.7	↑0.4
4/20 04:50	9.5	↑0.8
4/20 05:00	10.9	↑1.4
4/20 05:10	12.7	↑1.8
4/20 05:20	15.0	↑2.3
4/20 05:30	17.8	↑2.8
4/20 05:40	21.1	↑3.3
4/20 05:50	24.9	↑3.8
4/20 06:00	29.0	↑4.1
4/20 06:10	33.5	↑4.5
4/20 06:20	38.4	↑4.9
4/20 06:30	43.6	↑5.2
4/20 06:40	49.1	↑5.5
4/20 06:50	54.7	↑5.6
4/20 07:00	60.6	↑5.9
4/20 07:10	66.5	↑5.9
4/20 07:20	72.6	↑6.1
4/20 07:30	78.6	↑6.0
4/20 07:40	84.7	↑6.1
4/20 07:50	90.6	↑5.9
4/20 08:00	96.5	↑5.9
4/20 08:10	102.2	↑5.7
4/20 08:20	107.7	↑5.5
4/20 08:30	113.0	↑5.3
4/20 08:40	118.0	↑5.0
4/20 08:50	122.7	↑4.7
4/20 09:00	127.1	↑4.4
4/20 09:10	131.1	↑4.0
4/20 09:20	134.7	↑3.6
4/20 09:30	137.8	↑3.1
4/20 09:40	140.5	↑2.7
4/20 09:50	142.7	↑2.2
4/20 10:00	144.4	↑1.7
4/20 10:10	145.5	↑1.1
4/20 10:20	146.0	↑0.5	満潮
4/20 10:30	145.9	↓-0.1
4/20 10:40	145.3	↓-0.6
4/20 10:50	144.0	↓-1.3
4/20 11:00	142.2	↓-1.8
4/20 11:10	139.8	↓-2.4
4/20 11:20	136.8	↓-3.0
4/20 11:30	133.2	↓-3.6
4/20 11:40	129.2	↓-4.0
4/20 11:50	124.6	↓-4.6
4/20 12:00	119.6	↓-5.0
4/20 12:10	114.3	↓-5.3
4/20 12:20	108.6	↓-5.7
4/20 12:30	102.6	↓-6.0
4/20 12:40	96.5	↓-6.1
4/20 12:50	90.1	↓-6.4
4/20 13:00	83.7	↓-6.4
4/20 13:10	77.2	↓-6.5	最大潮位差
4/20 13:20	70.8	↓-6.4
4/20 13:30	64.3	↓-6.5	最大潮位差
4/20 13:40	58.0	↓-6.3
4/20 13:50	51.9	↓-6.1
4/20 14:00	45.9	↓-6.0
4/20 14:10	40.1	↓-5.8
4/20 14:20	34.5	↓-5.6
4/20 14:30	29.2	↓-5.3
4/20 14:40	24.2	↓-5.0
4/20 14:50	19.4	↓-4.8
4/20 15:00	15.0	↓-4.4
4/20 15:10	10.8	↓-4.2
4/20 15:20	7.0	↓-3.8
4/20 15:30	3.5	↓-3.5
4/20 15:40	0.4	↓-3.1
4/20 15:50	-2.4	↓-2.8
4/20 16:00	-4.8	↓-2.4
4/20 16:10	-6.8	↓-2.0
4/20 16:20	-8.3	↓-1.5
4/20 16:30	-9.5	↓-1.2
4/20 16:40	-10.2	↓-0.7
4/20 16:50	-10.5	↓-0.3	干潮
4/20 17:00	-10.2	↑0.3
4/20 17:10	-9.5	↑0.7
4/20 17:20	-8.4	↑1.1
4/20 17:30	-6.7	↑1.7
4/20 17:40	-4.6	↑2.1
4/20 17:50	-2.0	↑2.6
4/20 18:00	1.1	↑3.1
4/20 18:10	4.6	↑3.5
4/20 18:20	8.5	↑3.9
4/20 18:30	12.8	↑4.3
4/20 18:40	17.4	↑4.6
4/20 18:50	22.4	↑5.0
4/20 19:00	27.6	↑5.2
4/20 19:10	33.0	↑5.4
4/20 19:20	38.7	↑5.7
4/20 19:30	44.5	↑5.8
4/20 19:40	50.3	↑5.8
4/20 19:50	56.3	↑6.0
4/20 20:00	62.3	↑6.0
4/20 20:10	68.2	↑5.9
4/20 20:20	74.1	↑5.9
4/20 20:30	80.0	↑5.9
4/20 20:40	85.7	↑5.7
4/20 20:50	91.2	↑5.5
4/20 21:00	96.5	↑5.3
4/20 21:10	101.7	↑5.2
4/20 21:20	106.6	↑4.9
4/20 21:30	111.1	↑4.5
4/20 21:40	115.4	↑4.3
4/20 21:50	119.3	↑3.9
4/20 22:00	122.9	↑3.6
4/20 22:10	126.0	↑3.1
4/20 22:20	128.7	↑2.7
4/20 22:30	130.9	↑2.2
4/20 22:40	132.6	↑1.7
4/20 22:50	133.8	↑1.2
4/20 23:00	134.5	↑0.7	満潮
4/20 23:10	134.6	↑0.1
4/20 23:20	134.2	↓-0.4
4/20 23:30	133.2	↓-1.0
4/20 23:40	131.8	↓-1.4
4/20 23:50	129.7	↓-2.1