7 (金)	04:49	10:02	15:29	22:21
	114cm	67cm	116cm	6cm
大潮 出 06:35 入 17:11 出 17:05 入 05:56

那珂湊（茨城）2031年02月7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
2/7 00:00	30.9	↑3.4
2/7 00:10	34.5	↑3.6
2/7 00:20	38.2	↑3.7
2/7 00:30	42.0	↑3.8
2/7 00:40	46.0	↑4.0
2/7 00:50	49.9	↑3.9
2/7 01:00	54.0	↑4.1
2/7 01:10	58.0	↑4.0
2/7 01:20	62.1	↑4.1
2/7 01:30	66.1	↑4.0
2/7 01:40	70.1	↑4.0
2/7 01:50	74.0	↑3.9
2/7 02:00	77.8	↑3.8
2/7 02:10	81.6	↑3.8
2/7 02:20	85.2	↑3.6
2/7 02:30	88.6	↑3.4
2/7 02:40	91.9	↑3.3
2/7 02:50	94.9	↑3.0
2/7 03:00	97.8	↑2.9
2/7 03:10	100.5	↑2.7
2/7 03:20	102.9	↑2.4
2/7 03:30	105.1	↑2.2
2/7 03:40	107.1	↑2.0
2/7 03:50	108.8	↑1.7
2/7 04:00	110.2	↑1.4
2/7 04:10	111.3	↑1.1
2/7 04:20	112.2	↑0.9
2/7 04:30	112.8	↑0.6
2/7 04:40	113.2	↑0.4	満潮
2/7 04:50	113.2	0
2/7 05:00	113.0	↓-0.2
2/7 05:10	112.6	↓-0.4
2/7 05:20	111.9	↓-0.7
2/7 05:30	111.0	↓-0.9
2/7 05:40	109.8	↓-1.2
2/7 05:50	108.5	↓-1.3
2/7 06:00	106.9	↓-1.6
2/7 06:10	105.2	↓-1.7
2/7 06:20	103.4	↓-1.8
2/7 06:30	101.4	↓-2.0
2/7 06:40	99.3	↓-2.1
2/7 06:50	97.1	↓-2.2
2/7 07:00	94.8	↓-2.3
2/7 07:10	92.6	↓-2.2
2/7 07:20	90.2	↓-2.4
2/7 07:30	87.9	↓-2.3
2/7 07:40	85.7	↓-2.2
2/7 07:50	83.4	↓-2.3
2/7 08:00	81.3	↓-2.1
2/7 08:10	79.2	↓-2.1
2/7 08:20	77.2	↓-2.0
2/7 08:30	75.4	↓-1.8
2/7 08:40	73.7	↓-1.7
2/7 08:50	72.2	↓-1.5
2/7 09:00	70.8	↓-1.4
2/7 09:10	69.7	↓-1.1
2/7 09:20	68.7	↓-1.0
2/7 09:30	67.9	↓-0.8
2/7 09:40	67.4	↓-0.5
2/7 09:50	67.0	↓-0.4
2/7 10:00	66.9	↓-0.1	干潮
2/7 10:10	67.0	↑0.1
2/7 10:20	67.3	↑0.3
2/7 10:30	67.8	↑0.5
2/7 10:40	68.5	↑0.7
2/7 10:50	69.5	↑1.0
2/7 11:00	70.6	↑1.1
2/7 11:10	71.9	↑1.3
2/7 11:20	73.3	↑1.4
2/7 11:30	75.0	↑1.7
2/7 11:40	76.7	↑1.7
2/7 11:50	78.6	↑1.9
2/7 12:00	80.6	↑2.0
2/7 12:10	82.7	↑2.1
2/7 12:20	84.9	↑2.2
2/7 12:30	87.1	↑2.2
2/7 12:40	89.4	↑2.3
2/7 12:50	91.7	↑2.3
2/7 13:00	94.0	↑2.3
2/7 13:10	96.2	↑2.2
2/7 13:20	98.5	↑2.3
2/7 13:30	100.6	↑2.1
2/7 13:40	102.7	↑2.1
2/7 13:50	104.7	↑2.0
2/7 14:00	106.6	↑1.9
2/7 14:10	108.3	↑1.7
2/7 14:20	109.9	↑1.6
2/7 14:30	111.3	↑1.4
2/7 14:40	112.5	↑1.2
2/7 14:50	113.5	↑1.0
2/7 15:00	114.3	↑0.8
2/7 15:10	114.9	↑0.6
2/7 15:20	115.2	↑0.3	満潮
2/7 15:30	115.3	↑0.1
2/7 15:40	115.1	↓-0.2
2/7 15:50	114.7	↓-0.4
2/7 16:00	114.0	↓-0.7
2/7 16:10	113.0	↓-1.0
2/7 16:20	111.7	↓-1.3
2/7 16:30	110.1	↓-1.6
2/7 16:40	108.3	↓-1.8
2/7 16:50	106.2	↓-2.1
2/7 17:00	103.9	↓-2.3
2/7 17:10	101.3	↓-2.6
2/7 17:20	98.4	↓-2.9
2/7 17:30	95.3	↓-3.1
2/7 17:40	92.0	↓-3.3
2/7 17:50	88.6	↓-3.4
2/7 18:00	84.9	↓-3.7
2/7 18:10	81.1	↓-3.8
2/7 18:20	77.1	↓-4.0
2/7 18:30	73.0	↓-4.1
2/7 18:40	68.9	↓-4.1
2/7 18:50	64.6	↓-4.3	最大潮位差
2/7 19:00	60.4	↓-4.2
2/7 19:10	56.1	↓-4.3	最大潮位差
2/7 19:20	51.9	↓-4.2
2/7 19:30	47.7	↓-4.2
2/7 19:40	43.5	↓-4.2
2/7 19:50	39.5	↓-4.0
2/7 20:00	35.6	↓-3.9
2/7 20:10	31.8	↓-3.8
2/7 20:20	28.3	↓-3.5
2/7 20:30	24.9	↓-3.4
2/7 20:40	21.7	↓-3.2
2/7 20:50	18.8	↓-2.9
2/7 21:00	16.1	↓-2.7
2/7 21:10	13.8	↓-2.3
2/7 21:20	11.7	↓-2.1
2/7 21:30	9.9	↓-1.8
2/7 21:40	8.4	↓-1.5
2/7 21:50	7.2	↓-1.2
2/7 22:00	6.4	↓-0.8
2/7 22:10	5.9	↓-0.5
2/7 22:20	5.7	↓-0.2	干潮
2/7 22:30	5.9	↑0.2
2/7 22:40	6.4	↑0.5
2/7 22:50	7.2	↑0.8
2/7 23:00	8.4	↑1.2
2/7 23:10	9.8	↑1.4
2/7 23:20	11.6	↑1.8
2/7 23:30	13.6	↑2.0
2/7 23:40	15.9	↑2.3
2/7 23:50	18.5	↑2.6