20 (金)	05:54	11:18	17:49	-
	87cm	50cm	110cm	-
若潮 出 07:17 入 17:14 出 02:00 入 13:15

八幡（福岡）2030年12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
12/20 00:00	41.8	↑0.5
12/20 00:10	42.5	↑0.7
12/20 00:20	43.3	↑0.8
12/20 00:30	44.2	↑0.9
12/20 00:40	45.3	↑1.1
12/20 00:50	46.4	↑1.1
12/20 01:00	47.7	↑1.3
12/20 01:10	49.1	↑1.4
12/20 01:20	50.6	↑1.5
12/20 01:30	52.2	↑1.6
12/20 01:40	53.8	↑1.6
12/20 01:50	55.5	↑1.7
12/20 02:00	57.3	↑1.8
12/20 02:10	59.1	↑1.8
12/20 02:20	60.9	↑1.8
12/20 02:30	62.8	↑1.9
12/20 02:40	64.7	↑1.9
12/20 02:50	66.5	↑1.8
12/20 03:00	68.4	↑1.9
12/20 03:10	70.2	↑1.8
12/20 03:20	71.9	↑1.7
12/20 03:30	73.6	↑1.7
12/20 03:40	75.2	↑1.6
12/20 03:50	76.8	↑1.6
12/20 04:00	78.2	↑1.4
12/20 04:10	79.6	↑1.4
12/20 04:20	80.8	↑1.2
12/20 04:30	82.0	↑1.2
12/20 04:40	83.0	↑1.0
12/20 04:50	83.9	↑0.9
12/20 05:00	84.7	↑0.8
12/20 05:10	85.3	↑0.6
12/20 05:20	85.8	↑0.5
12/20 05:30	86.2	↑0.4
12/20 05:40	86.5	↑0.3
12/20 05:50	86.6	↑0.1	満潮
12/20 06:00	86.5	↓-0.1
12/20 06:10	86.4	↓-0.1
12/20 06:20	86.1	↓-0.3
12/20 06:30	85.6	↓-0.5
12/20 06:40	85.0	↓-0.6
12/20 06:50	84.2	↓-0.8
12/20 07:00	83.3	↓-0.9
12/20 07:10	82.3	↓-1.0
12/20 07:20	81.1	↓-1.2
12/20 07:30	79.8	↓-1.3
12/20 07:40	78.4	↓-1.4
12/20 07:50	76.9	↓-1.5
12/20 08:00	75.2	↓-1.7
12/20 08:10	73.5	↓-1.7
12/20 08:20	71.8	↓-1.7
12/20 08:30	69.9	↓-1.9
12/20 08:40	68.1	↓-1.8
12/20 08:50	66.2	↓-1.9
12/20 09:00	64.4	↓-1.8
12/20 09:10	62.6	↓-1.8
12/20 09:20	60.8	↓-1.8
12/20 09:30	59.1	↓-1.7
12/20 09:40	57.5	↓-1.6
12/20 09:50	56.1	↓-1.4
12/20 10:00	54.7	↓-1.4
12/20 10:10	53.5	↓-1.2
12/20 10:20	52.4	↓-1.1
12/20 10:30	51.5	↓-0.9
12/20 10:40	50.8	↓-0.7
12/20 10:50	50.2	↓-0.6
12/20 11:00	49.8	↓-0.4
12/20 11:10	49.6	↓-0.2	干潮
12/20 11:20	49.6	0
12/20 11:30	49.7	↑0.1
12/20 11:40	50.1	↑0.4
12/20 11:50	50.5	↑0.4
12/20 12:00	51.2	↑0.7
12/20 12:10	52.1	↑0.9
12/20 12:20	53.1	↑1.0
12/20 12:30	54.2	↑1.1
12/20 12:40	55.5	↑1.3
12/20 12:50	57.0	↑1.5
12/20 13:00	58.6	↑1.6
12/20 13:10	60.3	↑1.7
12/20 13:20	62.2	↑1.9
12/20 13:30	64.1	↑1.9
12/20 13:40	66.2	↑2.1
12/20 13:50	68.4	↑2.2
12/20 14:00	70.7	↑2.3
12/20 14:10	73.0	↑2.3
12/20 14:20	75.4	↑2.4
12/20 14:30	77.8	↑2.4
12/20 14:40	80.2	↑2.4
12/20 14:50	82.7	↑2.5
12/20 15:00	85.1	↑2.4
12/20 15:10	87.5	↑2.4
12/20 15:20	89.8	↑2.3
12/20 15:30	92.1	↑2.3
12/20 15:40	94.3	↑2.2
12/20 15:50	96.4	↑2.1
12/20 16:00	98.3	↑1.9
12/20 16:10	100.2	↑1.9
12/20 16:20	101.9	↑1.7
12/20 16:30	103.4	↑1.5
12/20 16:40	104.8	↑1.4
12/20 16:50	106.0	↑1.2
12/20 17:00	107.0	↑1.0
12/20 17:10	107.8	↑0.8
12/20 17:20	108.5	↑0.7
12/20 17:30	108.9	↑0.4
12/20 17:40	109.2	↑0.3	満潮
12/20 17:50	109.2	0
12/20 18:00	109.1	↓-0.1
12/20 18:10	108.7	↓-0.4
12/20 18:20	108.1	↓-0.6
12/20 18:30	107.4	↓-0.7
12/20 18:40	106.4	↓-1.0
12/20 18:50	105.2	↓-1.2
12/20 19:00	103.8	↓-1.4
12/20 19:10	102.2	↓-1.6
12/20 19:20	100.4	↓-1.8
12/20 19:30	98.4	↓-2.0
12/20 19:40	96.1	↓-2.3
12/20 19:50	93.8	↓-2.3
12/20 20:00	91.2	↓-2.6
12/20 20:10	88.5	↓-2.7
12/20 20:20	85.6	↓-2.9
12/20 20:30	82.7	↓-2.9
12/20 20:40	79.6	↓-3.1
12/20 20:50	76.5	↓-3.1
12/20 21:00	73.3	↓-3.2
12/20 21:10	70.0	↓-3.3	最大潮位差
12/20 21:20	66.8	↓-3.2
12/20 21:30	63.6	↓-3.2
12/20 21:40	60.5	↓-3.1
12/20 21:50	57.4	↓-3.1
12/20 22:00	54.4	↓-3.0
12/20 22:10	51.5	↓-2.9
12/20 22:20	48.8	↓-2.7
12/20 22:30	46.2	↓-2.6
12/20 22:40	43.8	↓-2.4
12/20 22:50	41.5	↓-2.3
12/20 23:00	39.4	↓-2.1
12/20 23:10	37.5	↓-1.9
12/20 23:20	35.8	↓-1.7
12/20 23:30	34.3	↓-1.5
12/20 23:40	32.9	↓-1.4
12/20 23:50	31.8	↓-1.1