20 (月)	03:29	07:09	11:36	19:57
	102cm	95cm	109cm	0cm
中潮 出 06:20 入 17:25 出 13:17 入 03:51

那珂湊（茨城）2062年02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
2/20 00:00	76.0	↑2.6
2/20 00:10	78.4	↑2.4
2/20 00:20	80.8	↑2.4
2/20 00:30	83.1	↑2.3
2/20 00:40	85.2	↑2.1
2/20 00:50	87.2	↑2.0
2/20 01:00	89.1	↑1.9
2/20 01:10	90.9	↑1.8
2/20 01:20	92.5	↑1.6
2/20 01:30	94.0	↑1.5
2/20 01:40	95.3	↑1.3
2/20 01:50	96.5	↑1.2
2/20 02:00	97.6	↑1.1
2/20 02:10	98.5	↑0.9
2/20 02:20	99.3	↑0.8
2/20 02:30	100.0	↑0.7
2/20 02:40	100.6	↑0.6
2/20 02:50	101.0	↑0.4
2/20 03:00	101.3	↑0.3
2/20 03:10	101.6	↑0.3
2/20 03:20	101.7	↑0.1	満潮
2/20 03:30	101.7	0
2/20 03:40	101.7	0
2/20 03:50	101.5	↓-0.2
2/20 04:00	101.3	↓-0.2
2/20 04:10	101.0	↓-0.3
2/20 04:20	100.7	↓-0.3
2/20 04:30	100.3	↓-0.4
2/20 04:40	99.9	↓-0.4
2/20 04:50	99.5	↓-0.4
2/20 05:00	99.0	↓-0.5
2/20 05:10	98.5	↓-0.5
2/20 05:20	98.0	↓-0.5
2/20 05:30	97.6	↓-0.4
2/20 05:40	97.1	↓-0.5
2/20 05:50	96.7	↓-0.4
2/20 06:00	96.3	↓-0.4
2/20 06:10	95.9	↓-0.4
2/20 06:20	95.6	↓-0.3
2/20 06:30	95.3	↓-0.3
2/20 06:40	95.1	↓-0.2
2/20 06:50	94.9	↓-0.2
2/20 07:00	94.8	↓-0.1	干潮
2/20 07:10	94.8	0
2/20 07:20	94.9	↑0.1
2/20 07:30	95.0	↑0.1
2/20 07:40	95.2	↑0.2
2/20 07:50	95.5	↑0.3
2/20 08:00	95.8	↑0.3
2/20 08:10	96.3	↑0.5
2/20 08:20	96.8	↑0.5
2/20 08:30	97.3	↑0.5
2/20 08:40	97.9	↑0.6
2/20 08:50	98.6	↑0.7
2/20 09:00	99.3	↑0.7
2/20 09:10	100.1	↑0.8
2/20 09:20	100.8	↑0.7
2/20 09:30	101.6	↑0.8
2/20 09:40	102.4	↑0.8
2/20 09:50	103.2	↑0.8
2/20 10:00	104.0	↑0.8
2/20 10:10	104.8	↑0.8
2/20 10:20	105.5	↑0.7
2/20 10:30	106.1	↑0.6
2/20 10:40	106.7	↑0.6
2/20 10:50	107.3	↑0.6
2/20 11:00	107.7	↑0.4
2/20 11:10	108.1	↑0.4
2/20 11:20	108.3	↑0.2
2/20 11:30	108.4	↑0.1	満潮
2/20 11:40	108.4	0
2/20 11:50	108.3	↓-0.1
2/20 12:00	108.0	↓-0.3
2/20 12:10	107.6	↓-0.4
2/20 12:20	107.0	↓-0.6
2/20 12:30	106.2	↓-0.8
2/20 12:40	105.3	↓-0.9
2/20 12:50	104.2	↓-1.1
2/20 13:00	102.9	↓-1.3
2/20 13:10	101.5	↓-1.4
2/20 13:20	99.9	↓-1.6
2/20 13:30	98.1	↓-1.8
2/20 13:40	96.2	↓-1.9
2/20 13:50	94.1	↓-2.1
2/20 14:00	91.8	↓-2.3
2/20 14:10	89.4	↓-2.4
2/20 14:20	86.8	↓-2.6
2/20 14:30	84.1	↓-2.7
2/20 14:40	81.3	↓-2.8
2/20 14:50	78.3	↓-3.0
2/20 15:00	75.2	↓-3.1
2/20 15:10	72.0	↓-3.2
2/20 15:20	68.8	↓-3.2
2/20 15:30	65.4	↓-3.4
2/20 15:40	62.0	↓-3.4
2/20 15:50	58.6	↓-3.4
2/20 16:00	55.1	↓-3.5
2/20 16:10	51.6	↓-3.5
2/20 16:20	48.0	↓-3.6
2/20 16:30	44.5	↓-3.5
2/20 16:40	41.0	↓-3.5
2/20 16:50	37.6	↓-3.4
2/20 17:00	34.2	↓-3.4
2/20 17:10	30.9	↓-3.3
2/20 17:20	27.7	↓-3.2
2/20 17:30	24.5	↓-3.2
2/20 17:40	21.5	↓-3.0
2/20 17:50	18.7	↓-2.8
2/20 18:00	16.0	↓-2.7
2/20 18:10	13.4	↓-2.6
2/20 18:20	11.0	↓-2.4
2/20 18:30	8.9	↓-2.1
2/20 18:40	6.9	↓-2.0
2/20 18:50	5.1	↓-1.8
2/20 19:00	3.6	↓-1.5
2/20 19:10	2.3	↓-1.3
2/20 19:20	1.3	↓-1.0
2/20 19:30	0.5	↓-0.8
2/20 19:40	-0.1	↓-0.6
2/20 19:50	-0.3	↓-0.2	干潮
2/20 20:00	-0.3	0
2/20 20:10	-0.1	↑0.2
2/20 20:20	0.4	↑0.5
2/20 20:30	1.2	↑0.8
2/20 20:40	2.2	↑1.0
2/20 20:50	3.5	↑1.3
2/20 21:00	5.0	↑1.5
2/20 21:10	6.8	↑1.8
2/20 21:20	8.8	↑2.0
2/20 21:30	11.0	↑2.2
2/20 21:40	13.4	↑2.4
2/20 21:50	16.0	↑2.6
2/20 22:00	18.8	↑2.8
2/20 22:10	21.8	↑3.0
2/20 22:20	24.9	↑3.1
2/20 22:30	28.1	↑3.2
2/20 22:40	31.5	↑3.4
2/20 22:50	34.9	↑3.4
2/20 23:00	38.5	↑3.6
2/20 23:10	42.0	↑3.5
2/20 23:20	45.7	↑3.7	最大潮位差
2/20 23:30	49.3	↑3.6
2/20 23:40	53.0	↑3.7	最大潮位差
2/20 23:50	56.6	↑3.6