20 (金)	02:32	08:42	14:46	20:52
	108cm	35cm	105cm	30cm
中潮 出 04:59 入 18:17 出 16:04 入 03:45

那珂湊（茨城）2035年04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
4/20 00:00	80.4	↑3.1
4/20 00:10	83.5	↑3.1
4/20 00:20	86.4	↑2.9
4/20 00:30	89.2	↑2.8
4/20 00:40	91.9	↑2.7
4/20 00:50	94.4	↑2.5
4/20 01:00	96.7	↑2.3
4/20 01:10	98.8	↑2.1
4/20 01:20	100.7	↑1.9
4/20 01:30	102.4	↑1.7
4/20 01:40	103.8	↑1.4
4/20 01:50	105.0	↑1.2
4/20 02:00	105.9	↑0.9
4/20 02:10	106.6	↑0.7
4/20 02:20	107.1	↑0.5
4/20 02:30	107.2	↑0.1	満潮
4/20 02:40	107.1	↓-0.1
4/20 02:50	106.8	↓-0.3
4/20 03:00	106.1	↓-0.7
4/20 03:10	105.3	↓-0.8
4/20 03:20	104.1	↓-1.2
4/20 03:30	102.8	↓-1.3
4/20 03:40	101.2	↓-1.6
4/20 03:50	99.4	↓-1.8
4/20 04:00	97.4	↓-2.0
4/20 04:10	95.2	↓-2.2
4/20 04:20	92.8	↓-2.4
4/20 04:30	90.2	↓-2.6
4/20 04:40	87.6	↓-2.6
4/20 04:50	84.7	↓-2.9
4/20 05:00	81.8	↓-2.9
4/20 05:10	78.8	↓-3.0
4/20 05:20	75.8	↓-3.0
4/20 05:30	72.7	↓-3.1
4/20 05:40	69.6	↓-3.1
4/20 05:50	66.5	↓-3.1
4/20 06:00	63.4	↓-3.1
4/20 06:10	60.4	↓-3.0
4/20 06:20	57.5	↓-2.9
4/20 06:30	54.6	↓-2.9
4/20 06:40	51.9	↓-2.7
4/20 06:50	49.3	↓-2.6
4/20 07:00	46.8	↓-2.5
4/20 07:10	44.5	↓-2.3
4/20 07:20	42.4	↓-2.1
4/20 07:30	40.5	↓-1.9
4/20 07:40	38.9	↓-1.6
4/20 07:50	37.4	↓-1.5
4/20 08:00	36.2	↓-1.2
4/20 08:10	35.3	↓-0.9
4/20 08:20	34.6	↓-0.7
4/20 08:30	34.2	↓-0.4
4/20 08:40	34.0	↓-0.2	干潮
4/20 08:50	34.1	↑0.1
4/20 09:00	34.5	↑0.4
4/20 09:10	35.1	↑0.6
4/20 09:20	36.0	↑0.9
4/20 09:30	37.2	↑1.2
4/20 09:40	38.5	↑1.3
4/20 09:50	40.1	↑1.6
4/20 10:00	42.0	↑1.9
4/20 10:10	44.0	↑2.0
4/20 10:20	46.2	↑2.2
4/20 10:30	48.6	↑2.4
4/20 10:40	51.1	↑2.5
4/20 10:50	53.8	↑2.7
4/20 11:00	56.6	↑2.8
4/20 11:10	59.5	↑2.9
4/20 11:20	62.5	↑3.0
4/20 11:30	65.5	↑3.0
4/20 11:40	68.5	↑3.0
4/20 11:50	71.5	↑3.0
4/20 12:00	74.6	↑3.1
4/20 12:10	77.5	↑2.9
4/20 12:20	80.5	↑3.0
4/20 12:30	83.3	↑2.8
4/20 12:40	86.0	↑2.7
4/20 12:50	88.6	↑2.6
4/20 13:00	91.1	↑2.5
4/20 13:10	93.4	↑2.3
4/20 13:20	95.5	↑2.1
4/20 13:30	97.5	↑2.0
4/20 13:40	99.2	↑1.7
4/20 13:50	100.7	↑1.5
4/20 14:00	102.0	↑1.3
4/20 14:10	103.0	↑1.0
4/20 14:20	103.8	↑0.8
4/20 14:30	104.3	↑0.5
4/20 14:40	104.6	↑0.3	満潮
4/20 14:50	104.6	0
4/20 15:00	104.3	↓-0.3
4/20 15:10	103.8	↓-0.5
4/20 15:20	103.0	↓-0.8
4/20 15:30	101.9	↓-1.1
4/20 15:40	100.7	↓-1.2
4/20 15:50	99.1	↓-1.6
4/20 16:00	97.4	↓-1.7
4/20 16:10	95.4	↓-2.0
4/20 16:20	93.2	↓-2.2
4/20 16:30	90.8	↓-2.4
4/20 16:40	88.3	↓-2.5
4/20 16:50	85.6	↓-2.7
4/20 17:00	82.7	↓-2.9
4/20 17:10	79.8	↓-2.9
4/20 17:20	76.7	↓-3.1
4/20 17:30	73.6	↓-3.1
4/20 17:40	70.4	↓-3.2
4/20 17:50	67.2	↓-3.2
4/20 18:00	64.0	↓-3.2
4/20 18:10	60.8	↓-3.2
4/20 18:20	57.7	↓-3.1
4/20 18:30	54.6	↓-3.1
4/20 18:40	51.7	↓-2.9
4/20 18:50	48.8	↓-2.9
4/20 19:00	46.1	↓-2.7
4/20 19:10	43.5	↓-2.6
4/20 19:20	41.1	↓-2.4
4/20 19:30	38.9	↓-2.2
4/20 19:40	36.9	↓-2.0
4/20 19:50	35.2	↓-1.7
4/20 20:00	33.6	↓-1.6
4/20 20:10	32.4	↓-1.2
4/20 20:20	31.4	↓-1.0
4/20 20:30	30.6	↓-0.8
4/20 20:40	30.2	↓-0.4
4/20 20:50	30.0	↓-0.2	干潮
4/20 21:00	30.1	↑0.1
4/20 21:10	30.5	↑0.4
4/20 21:20	31.1	↑0.6
4/20 21:30	32.1	↑1.0
4/20 21:40	33.3	↑1.2
4/20 21:50	34.8	↑1.5
4/20 22:00	36.5	↑1.7
4/20 22:10	38.4	↑1.9
4/20 22:20	40.6	↑2.2
4/20 22:30	43.0	↑2.4
4/20 22:40	45.6	↑2.6
4/20 22:50	48.4	↑2.8
4/20 23:00	51.3	↑2.9
4/20 23:10	54.4	↑3.1
4/20 23:20	57.5	↑3.1
4/20 23:30	60.8	↑3.3
4/20 23:40	64.1	↑3.3
4/20 23:50	67.5	↑3.4	最大潮位差