1 (木)	02:45	08:21	13:35	20:24
	103cm	62cm	97cm	16cm
中潮 出 05:25 入 18:01 出 03:56 入 14:45

那珂湊（茨城）2038年04月1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
4/1 00:00	76.2	↑2.9
4/1 00:10	79.0	↑2.8
4/1 00:20	81.8	↑2.8
4/1 00:30	84.4	↑2.6
4/1 00:40	86.8	↑2.4
4/1 00:50	89.1	↑2.3
4/1 01:00	91.3	↑2.2
4/1 01:10	93.2	↑1.9
4/1 01:20	95.0	↑1.8
4/1 01:30	96.6	↑1.6
4/1 01:40	98.0	↑1.4
4/1 01:50	99.2	↑1.2
4/1 02:00	100.2	↑1.0
4/1 02:10	101.0	↑0.8
4/1 02:20	101.6	↑0.6
4/1 02:30	102.0	↑0.4
4/1 02:40	102.2	↑0.2	満潮
4/1 02:50	102.2	0
4/1 03:00	102.0	↓-0.2
4/1 03:10	101.6	↓-0.4
4/1 03:20	101.0	↓-0.6
4/1 03:30	100.2	↓-0.8
4/1 03:40	99.3	↓-0.9
4/1 03:50	98.3	↓-1.0
4/1 04:00	97.1	↓-1.2
4/1 04:10	95.7	↓-1.4
4/1 04:20	94.2	↓-1.5
4/1 04:30	92.7	↓-1.5
4/1 04:40	91.0	↓-1.7
4/1 04:50	89.3	↓-1.7
4/1 05:00	87.5	↓-1.8
4/1 05:10	85.6	↓-1.9
4/1 05:20	83.8	↓-1.8
4/1 05:30	81.9	↓-1.9
4/1 05:40	80.0	↓-1.9
4/1 05:50	78.1	↓-1.9
4/1 06:00	76.2	↓-1.9
4/1 06:10	74.4	↓-1.8
4/1 06:20	72.7	↓-1.7
4/1 06:30	71.1	↓-1.6
4/1 06:40	69.5	↓-1.6
4/1 06:50	68.0	↓-1.5
4/1 07:00	66.7	↓-1.3
4/1 07:10	65.5	↓-1.2
4/1 07:20	64.4	↓-1.1
4/1 07:30	63.5	↓-0.9
4/1 07:40	62.7	↓-0.8
4/1 07:50	62.1	↓-0.6
4/1 08:00	61.7	↓-0.4
4/1 08:10	61.4	↓-0.3
4/1 08:20	61.3	↓-0.1	干潮
4/1 08:30	61.4	↑0.1
4/1 08:40	61.6	↑0.2
4/1 08:50	62.0	↑0.4
4/1 09:00	62.6	↑0.6
4/1 09:10	63.4	↑0.8
4/1 09:20	64.3	↑0.9
4/1 09:30	65.3	↑1.0
4/1 09:40	66.5	↑1.2
4/1 09:50	67.8	↑1.3
4/1 10:00	69.2	↑1.4
4/1 10:10	70.7	↑1.5
4/1 10:20	72.3	↑1.6
4/1 10:30	73.9	↑1.6
4/1 10:40	75.6	↑1.7
4/1 10:50	77.3	↑1.7
4/1 11:00	79.1	↑1.8
4/1 11:10	80.8	↑1.7
4/1 11:20	82.6	↑1.8
4/1 11:30	84.3	↑1.7
4/1 11:40	85.9	↑1.6
4/1 11:50	87.5	↑1.6
4/1 12:00	89.0	↑1.5
4/1 12:10	90.4	↑1.4
4/1 12:20	91.7	↑1.3
4/1 12:30	92.9	↑1.2
4/1 12:40	93.9	↑1.0
4/1 12:50	94.8	↑0.9
4/1 13:00	95.5	↑0.7
4/1 13:10	96.0	↑0.5
4/1 13:20	96.4	↑0.4
4/1 13:30	96.6	↑0.2	満潮
4/1 13:40	96.5	↓-0.1
4/1 13:50	96.3	↓-0.2
4/1 14:00	95.9	↓-0.4
4/1 14:10	95.3	↓-0.6
4/1 14:20	94.4	↓-0.9
4/1 14:30	93.4	↓-1.0
4/1 14:40	92.1	↓-1.3
4/1 14:50	90.7	↓-1.4
4/1 15:00	89.0	↓-1.7
4/1 15:10	87.2	↓-1.8
4/1 15:20	85.2	↓-2.0
4/1 15:30	83.0	↓-2.2
4/1 15:40	80.7	↓-2.3
4/1 15:50	78.2	↓-2.5
4/1 16:00	75.6	↓-2.6
4/1 16:10	72.9	↓-2.7
4/1 16:20	70.0	↓-2.9
4/1 16:30	67.1	↓-2.9
4/1 16:40	64.0	↓-3.1
4/1 16:50	61.0	↓-3.0
4/1 17:00	57.9	↓-3.1
4/1 17:10	54.7	↓-3.2
4/1 17:20	51.6	↓-3.1
4/1 17:30	48.5	↓-3.1
4/1 17:40	45.4	↓-3.1
4/1 17:50	42.3	↓-3.1
4/1 18:00	39.4	↓-2.9
4/1 18:10	36.5	↓-2.9
4/1 18:20	33.8	↓-2.7
4/1 18:30	31.2	↓-2.6
4/1 18:40	28.7	↓-2.5
4/1 18:50	26.4	↓-2.3
4/1 19:00	24.3	↓-2.1
4/1 19:10	22.4	↓-1.9
4/1 19:20	20.7	↓-1.7
4/1 19:30	19.2	↓-1.5
4/1 19:40	18.0	↓-1.2
4/1 19:50	17.0	↓-1.0
4/1 20:00	16.2	↓-0.8
4/1 20:10	15.7	↓-0.5
4/1 20:20	15.5	↓-0.2	干潮
4/1 20:30	15.6	↑0.1
4/1 20:40	15.9	↑0.3
4/1 20:50	16.5	↑0.6
4/1 21:00	17.3	↑0.8
4/1 21:10	18.5	↑1.2
4/1 21:20	19.8	↑1.3
4/1 21:30	21.5	↑1.7
4/1 21:40	23.3	↑1.8
4/1 21:50	25.4	↑2.1
4/1 22:00	27.7	↑2.3
4/1 22:10	30.2	↑2.5
4/1 22:20	32.9	↑2.7
4/1 22:30	35.7	↑2.8
4/1 22:40	38.7	↑3.0
4/1 22:50	41.8	↑3.1
4/1 23:00	45.1	↑3.3
4/1 23:10	48.4	↑3.3
4/1 23:20	51.8	↑3.4
4/1 23:30	55.2	↑3.4
4/1 23:40	58.7	↑3.5	最大潮位差
4/1 23:50	62.2	↑3.5	最大潮位差