20 (火)	10:05	02:50	21:47	16:22
	113cm	42cm	95cm	69cm
小潮 出 06:45 入 16:27 出 11:46 入 -

那珂湊（茨城）2061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	64.2	↓-2.3
12/20 00:10	62.0	↓-2.2
12/20 00:20	59.8	↓-2.2
12/20 00:30	57.7	↓-2.1
12/20 00:40	55.6	↓-2.1
12/20 00:50	53.7	↓-1.9
12/20 01:00	51.9	↓-1.8
12/20 01:10	50.2	↓-1.7
12/20 01:20	48.6	↓-1.6
12/20 01:30	47.1	↓-1.5
12/20 01:40	45.9	↓-1.2
12/20 01:50	44.7	↓-1.2
12/20 02:00	43.8	↓-0.9
12/20 02:10	43.0	↓-0.8
12/20 02:20	42.4	↓-0.6
12/20 02:30	41.9	↓-0.5
12/20 02:40	41.7	↓-0.2	干潮
12/20 02:50	41.6	↓-0.1	干潮
12/20 03:00	41.7	↑0.1
12/20 03:10	42.0	↑0.3
12/20 03:20	42.4	↑0.4
12/20 03:30	43.1	↑0.7
12/20 03:40	43.9	↑0.8
12/20 03:50	44.8	↑0.9
12/20 04:00	46.0	↑1.2
12/20 04:10	47.2	↑1.2
12/20 04:20	48.7	↑1.5
12/20 04:30	50.2	↑1.5
12/20 04:40	51.9	↑1.7
12/20 04:50	53.8	↑1.9
12/20 05:00	55.7	↑1.9
12/20 05:10	57.8	↑2.1
12/20 05:20	59.9	↑2.1
12/20 05:30	62.2	↑2.3
12/20 05:40	64.5	↑2.3
12/20 05:50	66.9	↑2.4
12/20 06:00	69.3	↑2.4
12/20 06:10	71.8	↑2.5
12/20 06:20	74.3	↑2.5
12/20 06:30	76.9	↑2.6	最大潮位差
12/20 06:40	79.4	↑2.5
12/20 06:50	81.9	↑2.5
12/20 07:00	84.5	↑2.6	最大潮位差
12/20 07:10	86.9	↑2.4
12/20 07:20	89.4	↑2.5
12/20 07:30	91.8	↑2.4
12/20 07:40	94.1	↑2.3
12/20 07:50	96.3	↑2.2
12/20 08:00	98.4	↑2.1
12/20 08:10	100.4	↑2.0
12/20 08:20	102.3	↑1.9
12/20 08:30	104.0	↑1.7
12/20 08:40	105.6	↑1.6
12/20 08:50	107.0	↑1.4
12/20 09:00	108.3	↑1.3
12/20 09:10	109.4	↑1.1
12/20 09:20	110.3	↑0.9
12/20 09:30	111.0	↑0.7
12/20 09:40	111.6	↑0.6
12/20 09:50	111.9	↑0.3
12/20 10:00	112.1	↑0.2	満潮
12/20 10:10	112.0	↓-0.1
12/20 10:20	111.8	↓-0.2
12/20 10:30	111.4	↓-0.4
12/20 10:40	110.9	↓-0.5
12/20 10:50	110.1	↓-0.8
12/20 11:00	109.2	↓-0.9
12/20 11:10	108.2	↓-1.0
12/20 11:20	107.0	↓-1.2
12/20 11:30	105.6	↓-1.4
12/20 11:40	104.2	↓-1.4
12/20 11:50	102.7	↓-1.5
12/20 12:00	101.0	↓-1.7
12/20 12:10	99.3	↓-1.7
12/20 12:20	97.6	↓-1.7
12/20 12:30	95.8	↓-1.8
12/20 12:40	93.9	↓-1.9
12/20 12:50	92.1	↓-1.8
12/20 13:00	90.2	↓-1.9
12/20 13:10	88.4	↓-1.8
12/20 13:20	86.6	↓-1.8
12/20 13:30	84.8	↓-1.8
12/20 13:40	83.1	↓-1.7
12/20 13:50	81.4	↓-1.7
12/20 14:00	79.8	↓-1.6
12/20 14:10	78.3	↓-1.5
12/20 14:20	76.8	↓-1.5
12/20 14:30	75.5	↓-1.3
12/20 14:40	74.2	↓-1.3
12/20 14:50	73.1	↓-1.1
12/20 15:00	72.1	↓-1.0
12/20 15:10	71.2	↓-0.9
12/20 15:20	70.4	↓-0.8
12/20 15:30	69.7	↓-0.7
12/20 15:40	69.2	↓-0.5
12/20 15:50	68.7	↓-0.5
12/20 16:00	68.4	↓-0.3
12/20 16:10	68.2	↓-0.2
12/20 16:20	68.2	0	干潮
12/20 16:30	68.2	0
12/20 16:40	68.4	↑0.2
12/20 16:50	68.7	↑0.3
12/20 17:00	69.0	↑0.3
12/20 17:10	69.5	↑0.5
12/20 17:20	70.1	↑0.6
12/20 17:30	70.8	↑0.7
12/20 17:40	71.6	↑0.8
12/20 17:50	72.4	↑0.8
12/20 18:00	73.4	↑1.0
12/20 18:10	74.4	↑1.0
12/20 18:20	75.5	↑1.1
12/20 18:30	76.6	↑1.1
12/20 18:40	77.7	↑1.1
12/20 18:50	78.9	↑1.2
12/20 19:00	80.1	↑1.2
12/20 19:10	81.4	↑1.3
12/20 19:20	82.6	↑1.2
12/20 19:30	83.8	↑1.2
12/20 19:40	85.0	↑1.2
12/20 19:50	86.2	↑1.2
12/20 20:00	87.4	↑1.2
12/20 20:10	88.4	↑1.0
12/20 20:20	89.4	↑1.0
12/20 20:30	90.4	↑1.0
12/20 20:40	91.2	↑0.8
12/20 20:50	92.0	↑0.8
12/20 21:00	92.6	↑0.6
12/20 21:10	93.2	↑0.6
12/20 21:20	93.6	↑0.4
12/20 21:30	93.8	↑0.2
12/20 21:40	94.0	↑0.2	満潮
12/20 21:50	94.0	0
12/20 22:00	93.9	↓-0.1
12/20 22:10	93.6	↓-0.3
12/20 22:20	93.2	↓-0.4
12/20 22:30	92.6	↓-0.6
12/20 22:40	91.9	↓-0.7
12/20 22:50	91.1	↓-0.8
12/20 23:00	90.1	↓-1.0
12/20 23:10	89.0	↓-1.1
12/20 23:20	87.8	↓-1.2
12/20 23:30	86.5	↓-1.3
12/20 23:40	85.1	↓-1.4
12/20 23:50	83.6	↓-1.5