2 (水)	01:39	06:13	10:47	18:36
	92cm	83cm	91cm	37cm
若潮 出 05:24 入 18:01 出 12:43 入 01:51

日立（茨城）2031年04月2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
4/2 00:00	87.7	↑0.8
4/2 00:10	88.4	↑0.7
4/2 00:20	89.0	↑0.6
4/2 00:30	89.5	↑0.5
4/2 00:40	90.0	↑0.5
4/2 00:50	90.4	↑0.4
4/2 01:00	90.7	↑0.3
4/2 01:10	91.0	↑0.3
4/2 01:20	91.1	↑0.1
4/2 01:30	91.2	↑0.1	満潮
4/2 01:40	91.2	0
4/2 01:50	91.2	0
4/2 02:00	91.1	↓-0.1
4/2 02:10	90.9	↓-0.2
4/2 02:20	90.6	↓-0.3
4/2 02:30	90.3	↓-0.3
4/2 02:40	89.9	↓-0.4
4/2 02:50	89.5	↓-0.4
4/2 03:00	89.1	↓-0.4
4/2 03:10	88.6	↓-0.5
4/2 03:20	88.1	↓-0.5
4/2 03:30	87.6	↓-0.5
4/2 03:40	87.1	↓-0.5
4/2 03:50	86.5	↓-0.6
4/2 04:00	86.0	↓-0.5
4/2 04:10	85.6	↓-0.4
4/2 04:20	85.1	↓-0.5
4/2 04:30	84.7	↓-0.4
4/2 04:40	84.3	↓-0.4
4/2 04:50	83.9	↓-0.4
4/2 05:00	83.6	↓-0.3
4/2 05:10	83.3	↓-0.3
4/2 05:20	83.1	↓-0.2
4/2 05:30	82.9	↓-0.2
4/2 05:40	82.8	↓-0.1
4/2 05:50	82.7	↓-0.1
4/2 06:00	82.6	↓-0.1
4/2 06:10	82.6	0	干潮
4/2 06:20	82.6	0
4/2 06:30	82.6	0
4/2 06:40	82.7	↑0.1
4/2 06:50	82.8	↑0.1
4/2 07:00	83.0	↑0.2
4/2 07:10	83.2	↑0.2
4/2 07:20	83.4	↑0.2
4/2 07:30	83.6	↑0.2
4/2 07:40	83.9	↑0.3
4/2 07:50	84.3	↑0.4
4/2 08:00	84.6	↑0.3
4/2 08:10	85.0	↑0.4
4/2 08:20	85.4	↑0.4
4/2 08:30	85.8	↑0.4
4/2 08:40	86.2	↑0.4
4/2 08:50	86.7	↑0.5
4/2 09:00	87.1	↑0.4
4/2 09:10	87.5	↑0.4
4/2 09:20	88.0	↑0.5
4/2 09:30	88.4	↑0.4
4/2 09:40	88.8	↑0.4
4/2 09:50	89.1	↑0.3
4/2 10:00	89.4	↑0.3
4/2 10:10	89.7	↑0.3
4/2 10:20	89.9	↑0.2
4/2 10:30	90.0	↑0.1
4/2 10:40	90.1	↑0.1	満潮
4/2 10:50	90.1	0
4/2 11:00	90.1	0
4/2 11:10	89.9	↓-0.2
4/2 11:20	89.7	↓-0.2
4/2 11:30	89.4	↓-0.3
4/2 11:40	89.0	↓-0.4
4/2 11:50	88.6	↓-0.4
4/2 12:00	88.0	↓-0.6
4/2 12:10	87.4	↓-0.6
4/2 12:20	86.7	↓-0.7
4/2 12:30	85.9	↓-0.8
4/2 12:40	85.0	↓-0.9
4/2 12:50	84.1	↓-0.9
4/2 13:00	83.1	↓-1.0
4/2 13:10	81.9	↓-1.2
4/2 13:20	80.7	↓-1.2
4/2 13:30	79.4	↓-1.3
4/2 13:40	78.1	↓-1.3
4/2 13:50	76.6	↓-1.5
4/2 14:00	75.1	↓-1.5
4/2 14:10	73.5	↓-1.6
4/2 14:20	71.8	↓-1.7
4/2 14:30	70.0	↓-1.8
4/2 14:40	68.2	↓-1.8
4/2 14:50	66.3	↓-1.9
4/2 15:00	64.4	↓-1.9
4/2 15:10	62.5	↓-1.9
4/2 15:20	60.5	↓-2.0
4/2 15:30	58.5	↓-2.0
4/2 15:40	56.6	↓-1.9
4/2 15:50	54.6	↓-2.0
4/2 16:00	52.7	↓-1.9
4/2 16:10	50.9	↓-1.8
4/2 16:20	49.1	↓-1.8
4/2 16:30	47.4	↓-1.7
4/2 16:40	45.8	↓-1.6
4/2 16:50	44.3	↓-1.5
4/2 17:00	42.9	↓-1.4
4/2 17:10	41.7	↓-1.2
4/2 17:20	40.5	↓-1.2
4/2 17:30	39.5	↓-1.0
4/2 17:40	38.7	↓-0.8
4/2 17:50	37.9	↓-0.8
4/2 18:00	37.3	↓-0.6
4/2 18:10	36.9	↓-0.4
4/2 18:20	36.6	↓-0.3
4/2 18:30	36.5	↓-0.1	干潮
4/2 18:40	36.5	0
4/2 18:50	36.6	↑0.1
4/2 19:00	36.9	↑0.3
4/2 19:10	37.4	↑0.5
4/2 19:20	38.0	↑0.6
4/2 19:30	38.7	↑0.7
4/2 19:40	39.6	↑0.9
4/2 19:50	40.6	↑1.0
4/2 20:00	41.8	↑1.2
4/2 20:10	43.1	↑1.3
4/2 20:20	44.6	↑1.5
4/2 20:30	46.1	↑1.5
4/2 20:40	47.8	↑1.7
4/2 20:50	49.6	↑1.8
4/2 21:00	51.5	↑1.9
4/2 21:10	53.4	↑1.9
4/2 21:20	55.5	↑2.1
4/2 21:30	57.6	↑2.1
4/2 21:40	59.7	↑2.1
4/2 21:50	61.9	↑2.2	最大潮位差
4/2 22:00	64.1	↑2.2	最大潮位差
4/2 22:10	66.2	↑2.1
4/2 22:20	68.4	↑2.2	最大潮位差
4/2 22:30	70.6	↑2.2	最大潮位差
4/2 22:40	72.7	↑2.1
4/2 22:50	74.8	↑2.1
4/2 23:00	76.8	↑2.0
4/2 23:10	78.8	↑2.0
4/2 23:20	80.6	↑1.8
4/2 23:30	82.4	↑1.8
4/2 23:40	84.1	↑1.7
4/2 23:50	85.8	↑1.7