20 (土)	10:08	02:56	21:41	16:13
	111cm	39cm	98cm	70cm
小潮 出 06:45 入 16:27 出 11:50 入 -

那珂湊（茨城）2042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	64.0	↓-2.5
12/20 00:10	61.5	↓-2.5
12/20 00:20	59.1	↓-2.4
12/20 00:30	56.8	↓-2.3
12/20 00:40	54.6	↓-2.2
12/20 00:50	52.4	↓-2.2
12/20 01:00	50.4	↓-2.0
12/20 01:10	48.5	↓-1.9
12/20 01:20	46.8	↓-1.7
12/20 01:30	45.2	↓-1.6
12/20 01:40	43.7	↓-1.5
12/20 01:50	42.5	↓-1.2
12/20 02:00	41.4	↓-1.1
12/20 02:10	40.5	↓-0.9
12/20 02:20	39.7	↓-0.8
12/20 02:30	39.2	↓-0.5
12/20 02:40	38.8	↓-0.4
12/20 02:50	38.6	↓-0.2	干潮
12/20 03:00	38.6	0
12/20 03:10	38.8	↑0.2
12/20 03:20	39.2	↑0.4
12/20 03:30	39.7	↑0.5
12/20 03:40	40.4	↑0.7
12/20 03:50	41.3	↑0.9
12/20 04:00	42.4	↑1.1
12/20 04:10	43.7	↑1.3
12/20 04:20	45.0	↑1.3
12/20 04:30	46.6	↑1.6
12/20 04:40	48.3	↑1.7
12/20 04:50	50.1	↑1.8
12/20 05:00	52.0	↑1.9
12/20 05:10	54.1	↑2.1
12/20 05:20	56.3	↑2.2
12/20 05:30	58.5	↑2.2
12/20 05:40	60.9	↑2.4
12/20 05:50	63.3	↑2.4
12/20 06:00	65.8	↑2.5
12/20 06:10	68.4	↑2.6
12/20 06:20	70.9	↑2.5
12/20 06:30	73.6	↑2.7	最大潮位差
12/20 06:40	76.2	↑2.6
12/20 06:50	78.8	↑2.6
12/20 07:00	81.4	↑2.6
12/20 07:10	84.0	↑2.6
12/20 07:20	86.5	↑2.5
12/20 07:30	89.0	↑2.5
12/20 07:40	91.4	↑2.4
12/20 07:50	93.7	↑2.3
12/20 08:00	95.9	↑2.2
12/20 08:10	98.0	↑2.1
12/20 08:20	100.0	↑2.0
12/20 08:30	101.8	↑1.8
12/20 08:40	103.4	↑1.6
12/20 08:50	105.0	↑1.6
12/20 09:00	106.3	↑1.3
12/20 09:10	107.5	↑1.2
12/20 09:20	108.5	↑1.0
12/20 09:30	109.3	↑0.8
12/20 09:40	109.9	↑0.6
12/20 09:50	110.3	↑0.4
12/20 10:00	110.5	↑0.2	満潮
12/20 10:10	110.5	0
12/20 10:20	110.4	↓-0.1
12/20 10:30	110.0	↓-0.4
12/20 10:40	109.5	↓-0.5
12/20 10:50	108.8	↓-0.7
12/20 11:00	108.0	↓-0.8
12/20 11:10	107.0	↓-1.0
12/20 11:20	105.9	↓-1.1
12/20 11:30	104.6	↓-1.3
12/20 11:40	103.2	↓-1.4
12/20 11:50	101.8	↓-1.4
12/20 12:00	100.2	↓-1.6
12/20 12:10	98.6	↓-1.6
12/20 12:20	96.9	↓-1.7
12/20 12:30	95.2	↓-1.7
12/20 12:40	93.5	↓-1.7
12/20 12:50	91.7	↓-1.8
12/20 13:00	90.0	↓-1.7
12/20 13:10	88.2	↓-1.8
12/20 13:20	86.5	↓-1.7
12/20 13:30	84.8	↓-1.7
12/20 13:40	83.2	↓-1.6
12/20 13:50	81.6	↓-1.6
12/20 14:00	80.1	↓-1.5
12/20 14:10	78.7	↓-1.4
12/20 14:20	77.4	↓-1.3
12/20 14:30	76.2	↓-1.2
12/20 14:40	75.0	↓-1.2
12/20 14:50	74.0	↓-1.0
12/20 15:00	73.1	↓-0.9
12/20 15:10	72.3	↓-0.8
12/20 15:20	71.6	↓-0.7
12/20 15:30	71.0	↓-0.6
12/20 15:40	70.6	↓-0.4
12/20 15:50	70.3	↓-0.3
12/20 16:00	70.1	↓-0.2
12/20 16:10	70.0	↓-0.1	干潮
12/20 16:20	70.0	0
12/20 16:30	70.2	↑0.2
12/20 16:40	70.4	↑0.2
12/20 16:50	70.8	↑0.4
12/20 17:00	71.3	↑0.5
12/20 17:10	71.9	↑0.6
12/20 17:20	72.6	↑0.7
12/20 17:30	73.4	↑0.8
12/20 17:40	74.2	↑0.8
12/20 17:50	75.2	↑1.0
12/20 18:00	76.2	↑1.0
12/20 18:10	77.3	↑1.1
12/20 18:20	78.5	↑1.2
12/20 18:30	79.7	↑1.2
12/20 18:40	80.9	↑1.2
12/20 18:50	82.2	↑1.3
12/20 19:00	83.5	↑1.3
12/20 19:10	84.8	↑1.3
12/20 19:20	86.1	↑1.3
12/20 19:30	87.4	↑1.3
12/20 19:40	88.7	↑1.3
12/20 19:50	89.9	↑1.2
12/20 20:00	91.1	↑1.2
12/20 20:10	92.2	↑1.1
12/20 20:20	93.2	↑1.0
12/20 20:30	94.1	↑0.9
12/20 20:40	95.0	↑0.9
12/20 20:50	95.7	↑0.7
12/20 21:00	96.3	↑0.6
12/20 21:10	96.8	↑0.5
12/20 21:20	97.2	↑0.4
12/20 21:30	97.4	↑0.2
12/20 21:40	97.5	↑0.1	満潮
12/20 21:50	97.4	↓-0.1
12/20 22:00	97.2	↓-0.2
12/20 22:10	96.8	↓-0.4
12/20 22:20	96.3	↓-0.5
12/20 22:30	95.6	↓-0.7
12/20 22:40	94.8	↓-0.8
12/20 22:50	93.8	↓-1.0
12/20 23:00	92.7	↓-1.1
12/20 23:10	91.5	↓-1.2
12/20 23:20	90.1	↓-1.4
12/20 23:30	88.6	↓-1.5
12/20 23:40	87.1	↓-1.5
12/20 23:50	85.4	↓-1.7