31 (木)	11:12	05:07	22:44	16:34
	107cm	-4cm	138cm	36cm
大潮 出 07:22 入 17:21 出 18:19 入 08:13

八幡（福岡）2020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	109.0	↓-4.3
12/31 00:10	104.4	↓-4.6
12/31 00:20	99.5	↓-4.9
12/31 00:30	94.5	↓-5.0
12/31 00:40	89.3	↓-5.2
12/31 00:50	84.0	↓-5.3
12/31 01:00	78.6	↓-5.4	最大潮位差
12/31 01:10	73.3	↓-5.3
12/31 01:20	67.9	↓-5.4	最大潮位差
12/31 01:30	62.6	↓-5.3
12/31 01:40	57.4	↓-5.2
12/31 01:50	52.4	↓-5.0
12/31 02:00	47.4	↓-5.0
12/31 02:10	42.6	↓-4.8
12/31 02:20	38.0	↓-4.6
12/31 02:30	33.6	↓-4.4
12/31 02:40	29.4	↓-4.2
12/31 02:50	25.4	↓-4.0
12/31 03:00	21.6	↓-3.8
12/31 03:10	18.0	↓-3.6
12/31 03:20	14.7	↓-3.3
12/31 03:30	11.5	↓-3.2
12/31 03:40	8.7	↓-2.8
12/31 03:50	6.0	↓-2.7
12/31 04:00	3.7	↓-2.3
12/31 04:10	1.6	↓-2.1
12/31 04:20	-0.2	↓-1.8
12/31 04:30	-1.6	↓-1.4
12/31 04:40	-2.8	↓-1.2
12/31 04:50	-3.5	↓-0.7
12/31 05:00	-4.0	↓-0.5	干潮
12/31 05:10	-4.0	0
12/31 05:20	-3.6	↑0.4
12/31 05:30	-2.9	↑0.7
12/31 05:40	-1.8	↑1.1
12/31 05:50	-0.2	↑1.6
12/31 06:00	1.7	↑1.9
12/31 06:10	4.0	↑2.3
12/31 06:20	6.7	↑2.7
12/31 06:30	9.7	↑3.0
12/31 06:40	13.0	↑3.3
12/31 06:50	16.6	↑3.6
12/31 07:00	20.5	↑3.9
12/31 07:10	24.6	↑4.1
12/31 07:20	28.8	↑4.2
12/31 07:30	33.3	↑4.5
12/31 07:40	37.8	↑4.5
12/31 07:50	42.4	↑4.6
12/31 08:00	47.1	↑4.7
12/31 08:10	51.8	↑4.7
12/31 08:20	56.5	↑4.7
12/31 08:30	61.1	↑4.6
12/31 08:40	65.7	↑4.6
12/31 08:50	70.2	↑4.5
12/31 09:00	74.5	↑4.3
12/31 09:10	78.7	↑4.2
12/31 09:20	82.7	↑4.0
12/31 09:30	86.5	↑3.8
12/31 09:40	90.0	↑3.5
12/31 09:50	93.3	↑3.3
12/31 10:00	96.3	↑3.0
12/31 10:10	98.9	↑2.6
12/31 10:20	101.2	↑2.3
12/31 10:30	103.2	↑2.0
12/31 10:40	104.7	↑1.5
12/31 10:50	105.9	↑1.2
12/31 11:00	106.6	↑0.7
12/31 11:10	106.8	↑0.2	満潮
12/31 11:20	106.7	↓-0.1
12/31 11:30	106.1	↓-0.6
12/31 11:40	105.1	↓-1.0
12/31 11:50	103.6	↓-1.5
12/31 12:00	101.8	↓-1.8
12/31 12:10	99.7	↓-2.1
12/31 12:20	97.2	↓-2.5
12/31 12:30	94.4	↓-2.8
12/31 12:40	91.3	↓-3.1
12/31 12:50	88.1	↓-3.2
12/31 13:00	84.7	↓-3.4
12/31 13:10	81.2	↓-3.5
12/31 13:20	77.6	↓-3.6
12/31 13:30	74.1	↓-3.5
12/31 13:40	70.5	↓-3.6
12/31 13:50	67.0	↓-3.5
12/31 14:00	63.6	↓-3.4
12/31 14:10	60.3	↓-3.3
12/31 14:20	57.2	↓-3.1
12/31 14:30	54.2	↓-3.0
12/31 14:40	51.4	↓-2.8
12/31 14:50	48.9	↓-2.5
12/31 15:00	46.5	↓-2.4
12/31 15:10	44.3	↓-2.2
12/31 15:20	42.4	↓-1.9
12/31 15:30	40.7	↓-1.7
12/31 15:40	39.2	↓-1.5
12/31 15:50	38.0	↓-1.2
12/31 16:00	37.0	↓-1.0
12/31 16:10	36.3	↓-0.7
12/31 16:20	35.8	↓-0.5
12/31 16:30	35.6	↓-0.2	干潮
12/31 16:40	35.6	0
12/31 16:50	36.0	↑0.4
12/31 17:00	36.6	↑0.6
12/31 17:10	37.6	↑1.0
12/31 17:20	38.9	↑1.3
12/31 17:30	40.4	↑1.5
12/31 17:40	42.4	↑2.0
12/31 17:50	44.6	↑2.2
12/31 18:00	47.1	↑2.5
12/31 18:10	50.0	↑2.9
12/31 18:20	53.1	↑3.1
12/31 18:30	56.5	↑3.4
12/31 18:40	60.1	↑3.6
12/31 18:50	64.0	↑3.9
12/31 19:00	68.0	↑4.0
12/31 19:10	72.2	↑4.2
12/31 19:20	76.5	↑4.3
12/31 19:30	80.9	↑4.4
12/31 19:40	85.3	↑4.4
12/31 19:50	89.7	↑4.4
12/31 20:00	94.1	↑4.4
12/31 20:10	98.5	↑4.4
12/31 20:20	102.7	↑4.2
12/31 20:30	106.8	↑4.1
12/31 20:40	110.7	↑3.9
12/31 20:50	114.5	↑3.8
12/31 21:00	118.0	↑3.5
12/31 21:10	121.3	↑3.3
12/31 21:20	124.4	↑3.1
12/31 21:30	127.1	↑2.7
12/31 21:40	129.6	↑2.5
12/31 21:50	131.8	↑2.2
12/31 22:00	133.6	↑1.8
12/31 22:10	135.1	↑1.5
12/31 22:20	136.2	↑1.1
12/31 22:30	136.9	↑0.7
12/31 22:40	137.2	↑0.3	満潮
12/31 22:50	137.1	↓-0.1
12/31 23:00	136.6	↓-0.5
12/31 23:10	135.7	↓-0.9
12/31 23:20	134.2	↓-1.5
12/31 23:30	132.4	↓-1.8
12/31 23:40	130.1	↓-2.3
12/31 23:50	127.4	↓-2.7