31 (水)	11:40	05:45	23:25	17:18
	111cm	3cm	132cm	32cm
中潮 出 07:22 入 17:20 出 19:46 入 08:39

八幡（福岡）2031年12月31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
12/31 00:00	125.2	↓-2.7
12/31 00:10	122.1	↓-3.1
12/31 00:20	118.6	↓-3.5
12/31 00:30	114.7	↓-3.9
12/31 00:40	110.6	↓-4.1
12/31 00:50	106.2	↓-4.4
12/31 01:00	101.6	↓-4.6
12/31 01:10	96.8	↓-4.8
12/31 01:20	91.9	↓-4.9
12/31 01:30	86.9	↓-5.0
12/31 01:40	81.9	↓-5.0
12/31 01:50	76.8	↓-5.1	最大潮位差
12/31 02:00	71.8	↓-5.0
12/31 02:10	66.8	↓-5.0
12/31 02:20	62.0	↓-4.8
12/31 02:30	57.2	↓-4.8
12/31 02:40	52.5	↓-4.7
12/31 02:50	48.0	↓-4.5
12/31 03:00	43.7	↓-4.3
12/31 03:10	39.5	↓-4.2
12/31 03:20	35.4	↓-4.1
12/31 03:30	31.5	↓-3.9
12/31 03:40	27.8	↓-3.7
12/31 03:50	24.3	↓-3.5
12/31 04:00	21.0	↓-3.3
12/31 04:10	17.9	↓-3.1
12/31 04:20	15.1	↓-2.8
12/31 04:30	12.4	↓-2.7
12/31 04:40	10.1	↓-2.3
12/31 04:50	8.0	↓-2.1
12/31 05:00	6.2	↓-1.8
12/31 05:10	4.8	↓-1.4
12/31 05:20	3.7	↓-1.1
12/31 05:30	3.0	↓-0.7
12/31 05:40	2.6	↓-0.4	干潮
12/31 05:50	2.7	↑0.1
12/31 06:00	3.1	↑0.4
12/31 06:10	4.0	↑0.9
12/31 06:20	5.3	↑1.3
12/31 06:30	7.0	↑1.7
12/31 06:40	9.1	↑2.1
12/31 06:50	11.6	↑2.5
12/31 07:00	14.4	↑2.8
12/31 07:10	17.6	↑3.2
12/31 07:20	21.0	↑3.4
12/31 07:30	24.8	↑3.8
12/31 07:40	28.7	↑3.9
12/31 07:50	32.9	↑4.2
12/31 08:00	37.3	↑4.4
12/31 08:10	41.8	↑4.5
12/31 08:20	46.3	↑4.5
12/31 08:30	51.0	↑4.7
12/31 08:40	55.6	↑4.6
12/31 08:50	60.3	↑4.7
12/31 09:00	64.9	↑4.6
12/31 09:10	69.5	↑4.6
12/31 09:20	73.9	↑4.4
12/31 09:30	78.3	↑4.4
12/31 09:40	82.4	↑4.1
12/31 09:50	86.4	↑4.0
12/31 10:00	90.2	↑3.8
12/31 10:10	93.7	↑3.5
12/31 10:20	97.0	↑3.3
12/31 10:30	100.0	↑3.0
12/31 10:40	102.6	↑2.6
12/31 10:50	104.9	↑2.3
12/31 11:00	106.8	↑1.9
12/31 11:10	108.3	↑1.5
12/31 11:20	109.3	↑1.0
12/31 11:30	110.0	↑0.7	満潮
12/31 11:40	110.2	↑0.2	満潮
12/31 11:50	109.9	↓-0.3
12/31 12:00	109.2	↓-0.7
12/31 12:10	108.1	↓-1.1
12/31 12:20	106.5	↓-1.6
12/31 12:30	104.6	↓-1.9
12/31 12:40	102.3	↓-2.3
12/31 12:50	99.6	↓-2.7
12/31 13:00	96.7	↓-2.9
12/31 13:10	93.5	↓-3.2
12/31 13:20	90.1	↓-3.4
12/31 13:30	86.6	↓-3.5
12/31 13:40	82.9	↓-3.7
12/31 13:50	79.2	↓-3.7
12/31 14:00	75.4	↓-3.8
12/31 14:10	71.7	↓-3.7
12/31 14:20	68.1	↓-3.6
12/31 14:30	64.5	↓-3.6
12/31 14:40	61.0	↓-3.5
12/31 14:50	57.7	↓-3.3
12/31 15:00	54.5	↓-3.2
12/31 15:10	51.5	↓-3.0
12/31 15:20	48.7	↓-2.8
12/31 15:30	46.1	↓-2.6
12/31 15:40	43.7	↓-2.4
12/31 15:50	41.5	↓-2.2
12/31 16:00	39.5	↓-2.0
12/31 16:10	37.7	↓-1.8
12/31 16:20	36.1	↓-1.6
12/31 16:30	34.8	↓-1.3
12/31 16:40	33.7	↓-1.1
12/31 16:50	32.8	↓-0.9
12/31 17:00	32.2	↓-0.6
12/31 17:10	31.9	↓-0.3	干潮
12/31 17:20	31.8	↓-0.1
12/31 17:30	32.1	↑0.3
12/31 17:40	32.6	↑0.5
12/31 17:50	33.5	↑0.9
12/31 18:00	34.7	↑1.2
12/31 18:10	36.2	↑1.5
12/31 18:20	38.1	↑1.9
12/31 18:30	40.3	↑2.2
12/31 18:40	42.8	↑2.5
12/31 18:50	45.6	↑2.8
12/31 19:00	48.7	↑3.1
12/31 19:10	52.0	↑3.3
12/31 19:20	55.6	↑3.6
12/31 19:30	59.4	↑3.8
12/31 19:40	63.4	↑4.0
12/31 19:50	67.5	↑4.1
12/31 20:00	71.7	↑4.2
12/31 20:10	75.9	↑4.2
12/31 20:20	80.2	↑4.3
12/31 20:30	84.5	↑4.3
12/31 20:40	88.8	↑4.3
12/31 20:50	93.0	↑4.2
12/31 21:00	97.1	↑4.1
12/31 21:10	101.1	↑4.0
12/31 21:20	104.9	↑3.8
12/31 21:30	108.5	↑3.6
12/31 21:40	112.0	↑3.5
12/31 21:50	115.2	↑3.2
12/31 22:00	118.2	↑3.0
12/31 22:10	120.9	↑2.7
12/31 22:20	123.4	↑2.5
12/31 22:30	125.5	↑2.1
12/31 22:40	127.3	↑1.8
12/31 22:50	128.8	↑1.5
12/31 23:00	130.0	↑1.2
12/31 23:10	130.7	↑0.7
12/31 23:20	131.1	↑0.4	満潮
12/31 23:30	131.0	↓-0.1
12/31 23:40	130.6	↓-0.4
12/31 23:50	129.7	↓-0.9