20 (水)	11:01	04:10	23:59	17:57
	116cm	56cm	96cm	52cm
長潮 出 06:45 入 16:27 出 12:36 入 00:26

那珂湊（茨城）2034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	85.5	↓-1.4
12/20 00:10	84.1	↓-1.4
12/20 00:20	82.6	↓-1.5
12/20 00:30	81.0	↓-1.6
12/20 00:40	79.4	↓-1.6
12/20 00:50	77.7	↓-1.7
12/20 01:00	76.0	↓-1.7
12/20 01:10	74.4	↓-1.6
12/20 01:20	72.7	↓-1.7
12/20 01:30	71.0	↓-1.7
12/20 01:40	69.3	↓-1.7
12/20 01:50	67.7	↓-1.6
12/20 02:00	66.2	↓-1.5
12/20 02:10	64.7	↓-1.5
12/20 02:20	63.3	↓-1.4
12/20 02:30	62.0	↓-1.3
12/20 02:40	60.7	↓-1.3
12/20 02:50	59.6	↓-1.1
12/20 03:00	58.6	↓-1.0
12/20 03:10	57.7	↓-0.9
12/20 03:20	57.0	↓-0.7
12/20 03:30	56.3	↓-0.7
12/20 03:40	55.8	↓-0.5
12/20 03:50	55.5	↓-0.3
12/20 04:00	55.3	↓-0.2	干潮
12/20 04:10	55.2	↓-0.1	干潮
12/20 04:20	55.3	↑0.1
12/20 04:30	55.6	↑0.3
12/20 04:40	56.0	↑0.4
12/20 04:50	56.5	↑0.5
12/20 05:00	57.2	↑0.7
12/20 05:10	58.0	↑0.8
12/20 05:20	59.0	↑1.0
12/20 05:30	60.1	↑1.1
12/20 05:40	61.4	↑1.3
12/20 05:50	62.8	↑1.4
12/20 06:00	64.3	↑1.5
12/20 06:10	66.0	↑1.7
12/20 06:20	67.7	↑1.7
12/20 06:30	69.6	↑1.9
12/20 06:40	71.6	↑2.0
12/20 06:50	73.6	↑2.0
12/20 07:00	75.7	↑2.1
12/20 07:10	77.9	↑2.2
12/20 07:20	80.2	↑2.3
12/20 07:30	82.5	↑2.3
12/20 07:40	84.8	↑2.3
12/20 07:50	87.1	↑2.3
12/20 08:00	89.5	↑2.4
12/20 08:10	91.8	↑2.3
12/20 08:20	94.1	↑2.3
12/20 08:30	96.4	↑2.3
12/20 08:40	98.6	↑2.2
12/20 08:50	100.7	↑2.1
12/20 09:00	102.7	↑2.0
12/20 09:10	104.7	↑2.0
12/20 09:20	106.5	↑1.8
12/20 09:30	108.2	↑1.7
12/20 09:40	109.7	↑1.5
12/20 09:50	111.1	↑1.4
12/20 10:00	112.4	↑1.3
12/20 10:10	113.4	↑1.0
12/20 10:20	114.3	↑0.9
12/20 10:30	115.0	↑0.7
12/20 10:40	115.5	↑0.5
12/20 10:50	115.8	↑0.3
12/20 11:00	115.9	↑0.1	満潮
12/20 11:10	115.8	↓-0.1
12/20 11:20	115.5	↓-0.3
12/20 11:30	115.0	↓-0.5
12/20 11:40	114.3	↓-0.7
12/20 11:50	113.4	↓-0.9
12/20 12:00	112.3	↓-1.1
12/20 12:10	111.0	↓-1.3
12/20 12:20	109.6	↓-1.4
12/20 12:30	108.0	↓-1.6
12/20 12:40	106.3	↓-1.7
12/20 12:50	104.5	↓-1.8
12/20 13:00	102.5	↓-2.0
12/20 13:10	100.4	↓-2.1
12/20 13:20	98.2	↓-2.2
12/20 13:30	96.0	↓-2.2
12/20 13:40	93.7	↓-2.3
12/20 13:50	91.3	↓-2.4
12/20 14:00	88.9	↓-2.4
12/20 14:10	86.4	↓-2.5	最大潮位差
12/20 14:20	84.0	↓-2.4
12/20 14:30	81.6	↓-2.4
12/20 14:40	79.2	↓-2.4
12/20 14:50	76.8	↓-2.4
12/20 15:00	74.5	↓-2.3
12/20 15:10	72.2	↓-2.3
12/20 15:20	70.0	↓-2.2
12/20 15:30	67.9	↓-2.1
12/20 15:40	65.8	↓-2.1
12/20 15:50	63.9	↓-1.9
12/20 16:00	62.1	↓-1.8
12/20 16:10	60.4	↓-1.7
12/20 16:20	58.8	↓-1.6
12/20 16:30	57.3	↓-1.5
12/20 16:40	56.0	↓-1.3
12/20 16:50	54.9	↓-1.1
12/20 17:00	53.9	↓-1.0
12/20 17:10	53.1	↓-0.8
12/20 17:20	52.4	↓-0.7
12/20 17:30	51.9	↓-0.5
12/20 17:40	51.5	↓-0.4
12/20 17:50	51.3	↓-0.2	干潮
12/20 18:00	51.3	0
12/20 18:10	51.4	↑0.1
12/20 18:20	51.7	↑0.3
12/20 18:30	52.2	↑0.5
12/20 18:40	52.8	↑0.6
12/20 18:50	53.6	↑0.8
12/20 19:00	54.5	↑0.9
12/20 19:10	55.6	↑1.1
12/20 19:20	56.8	↑1.2
12/20 19:30	58.1	↑1.3
12/20 19:40	59.6	↑1.5
12/20 19:50	61.1	↑1.5
12/20 20:00	62.8	↑1.7
12/20 20:10	64.5	↑1.7
12/20 20:20	66.3	↑1.8
12/20 20:30	68.1	↑1.8
12/20 20:40	70.0	↑1.9
12/20 20:50	71.9	↑1.9
12/20 21:00	73.8	↑1.9
12/20 21:10	75.7	↑1.9
12/20 21:20	77.6	↑1.9
12/20 21:30	79.5	↑1.9
12/20 21:40	81.3	↑1.8
12/20 21:50	83.0	↑1.7
12/20 22:00	84.7	↑1.7
12/20 22:10	86.3	↑1.6
12/20 22:20	87.7	↑1.4
12/20 22:30	89.1	↑1.4
12/20 22:40	90.3	↑1.2
12/20 22:50	91.4	↑1.1
12/20 23:00	92.4	↑1.0
12/20 23:10	93.2	↑0.8
12/20 23:20	93.9	↑0.7
12/20 23:30	94.4	↑0.5
12/20 23:40	94.8	↑0.4
12/20 23:50	95.0	↑0.2	満潮