21 (火)	08:13	01:47	19:41	13:28
	77cm	19cm	106cm	51cm
若潮 出 06:56 入 18:08 出 14:18 入 03:35

八幡（福岡）2051年02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
2/21 00:00	30.2	↓-2.1
2/21 00:10	28.3	↓-1.9
2/21 00:20	26.5	↓-1.8
2/21 00:30	24.9	↓-1.6
2/21 00:40	23.5	↓-1.4
2/21 00:50	22.2	↓-1.3
2/21 01:00	21.2	↓-1.0
2/21 01:10	20.3	↓-0.9
2/21 01:20	19.7	↓-0.6
2/21 01:30	19.2	↓-0.5
2/21 01:40	19.0	↓-0.2	干潮
2/21 01:50	19.0	0
2/21 02:00	19.1	↑0.1
2/21 02:10	19.5	↑0.4
2/21 02:20	20.1	↑0.6
2/21 02:30	20.9	↑0.8
2/21 02:40	21.9	↑1.0
2/21 02:50	23.0	↑1.1
2/21 03:00	24.3	↑1.3
2/21 03:10	25.8	↑1.5
2/21 03:20	27.4	↑1.6
2/21 03:30	29.1	↑1.7
2/21 03:40	31.0	↑1.9
2/21 03:50	32.9	↑1.9
2/21 04:00	35.0	↑2.1
2/21 04:10	37.1	↑2.1
2/21 04:20	39.2	↑2.1
2/21 04:30	41.5	↑2.3
2/21 04:40	43.7	↑2.2
2/21 04:50	46.0	↑2.3
2/21 05:00	48.3	↑2.3
2/21 05:10	50.6	↑2.3
2/21 05:20	52.9	↑2.3
2/21 05:30	55.1	↑2.2
2/21 05:40	57.4	↑2.3
2/21 05:50	59.5	↑2.1
2/21 06:00	61.6	↑2.1
2/21 06:10	63.6	↑2.0
2/21 06:20	65.5	↑1.9
2/21 06:30	67.3	↑1.8
2/21 06:40	69.0	↑1.7
2/21 06:50	70.5	↑1.5
2/21 07:00	71.9	↑1.4
2/21 07:10	73.1	↑1.2
2/21 07:20	74.2	↑1.1
2/21 07:30	75.0	↑0.8
2/21 07:40	75.7	↑0.7
2/21 07:50	76.2	↑0.5
2/21 08:00	76.5	↑0.3
2/21 08:10	76.6	↑0.1	満潮
2/21 08:20	76.6	0
2/21 08:30	76.4	↓-0.2
2/21 08:40	76.0	↓-0.4
2/21 08:50	75.5	↓-0.5
2/21 09:00	74.8	↓-0.7
2/21 09:10	74.0	↓-0.8
2/21 09:20	73.2	↓-0.8
2/21 09:30	72.2	↓-1.0
2/21 09:40	71.1	↓-1.1
2/21 09:50	70.0	↓-1.1
2/21 10:00	68.9	↓-1.1
2/21 10:10	67.7	↓-1.2
2/21 10:20	66.4	↓-1.3
2/21 10:30	65.2	↓-1.2
2/21 10:40	64.0	↓-1.2
2/21 10:50	62.8	↓-1.2
2/21 11:00	61.6	↓-1.2
2/21 11:10	60.4	↓-1.2
2/21 11:20	59.2	↓-1.2
2/21 11:30	58.1	↓-1.1
2/21 11:40	57.0	↓-1.1
2/21 11:50	56.0	↓-1.0
2/21 12:00	55.0	↓-1.0
2/21 12:10	54.1	↓-0.9
2/21 12:20	53.3	↓-0.8
2/21 12:30	52.6	↓-0.7
2/21 12:40	51.9	↓-0.7
2/21 12:50	51.4	↓-0.5
2/21 13:00	51.0	↓-0.4
2/21 13:10	50.7	↓-0.3
2/21 13:20	50.5	↓-0.2	干潮
2/21 13:30	50.5	0
2/21 13:40	50.6	↑0.1
2/21 13:50	50.8	↑0.2
2/21 14:00	51.3	↑0.5
2/21 14:10	51.9	↑0.6
2/21 14:20	52.6	↑0.7
2/21 14:30	53.5	↑0.9
2/21 14:40	54.6	↑1.1
2/21 14:50	55.8	↑1.2
2/21 15:00	57.2	↑1.4
2/21 15:10	58.7	↑1.5
2/21 15:20	60.3	↑1.6
2/21 15:30	62.1	↑1.8
2/21 15:40	63.9	↑1.8
2/21 15:50	65.9	↑2.0
2/21 16:00	67.9	↑2.0
2/21 16:10	70.0	↑2.1
2/21 16:20	72.2	↑2.2
2/21 16:30	74.4	↑2.2
2/21 16:40	76.6	↑2.2
2/21 16:50	78.9	↑2.3
2/21 17:00	81.2	↑2.3
2/21 17:10	83.4	↑2.2
2/21 17:20	85.7	↑2.3
2/21 17:30	87.9	↑2.2
2/21 17:40	90.0	↑2.1
2/21 17:50	92.1	↑2.1
2/21 18:00	94.1	↑2.0
2/21 18:10	96.0	↑1.9
2/21 18:20	97.8	↑1.8
2/21 18:30	99.5	↑1.7
2/21 18:40	101.0	↑1.5
2/21 18:50	102.3	↑1.3
2/21 19:00	103.4	↑1.1
2/21 19:10	104.2	↑0.8
2/21 19:20	104.9	↑0.7
2/21 19:30	105.3	↑0.4
2/21 19:40	105.4	↑0.1	満潮
2/21 19:50	105.3	↓-0.1
2/21 20:00	104.9	↓-0.4
2/21 20:10	104.2	↓-0.7
2/21 20:20	103.2	↓-1.0
2/21 20:30	102.0	↓-1.2
2/21 20:40	100.5	↓-1.5
2/21 20:50	98.7	↓-1.8
2/21 21:00	96.7	↓-2.0
2/21 21:10	94.5	↓-2.2
2/21 21:20	92.1	↓-2.4
2/21 21:30	89.4	↓-2.7
2/21 21:40	86.6	↓-2.8
2/21 21:50	83.7	↓-2.9
2/21 22:00	80.6	↓-3.1
2/21 22:10	77.4	↓-3.2
2/21 22:20	74.1	↓-3.3
2/21 22:30	70.8	↓-3.3
2/21 22:40	67.4	↓-3.4
2/21 22:50	63.9	↓-3.5	最大潮位差
2/21 23:00	60.5	↓-3.4
2/21 23:10	57.1	↓-3.4
2/21 23:20	53.6	↓-3.5	最大潮位差
2/21 23:30	50.3	↓-3.3
2/21 23:40	46.9	↓-3.4
2/21 23:50	43.6	↓-3.3