20 (土)	02:32	08:32	14:16	20:25
	106cm	55cm	103cm	38cm
中潮 出 04:58 入 18:17 出 14:51 入 03:15

日立（茨城）2024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	85.4	↑2.4
4/20 00:10	87.8	↑2.4
4/20 00:20	90.0	↑2.2
4/20 00:30	92.2	↑2.2
4/20 00:40	94.2	↑2.0
4/20 00:50	96.1	↑1.9
4/20 01:00	97.9	↑1.8
4/20 01:10	99.5	↑1.6
4/20 01:20	100.9	↑1.4
4/20 01:30	102.2	↑1.3
4/20 01:40	103.3	↑1.1
4/20 01:50	104.2	↑0.9
4/20 02:00	104.9	↑0.7
4/20 02:10	105.4	↑0.5
4/20 02:20	105.8	↑0.4
4/20 02:30	105.9	↑0.1	満潮
4/20 02:40	105.8	↓-0.1
4/20 02:50	105.5	↓-0.3
4/20 03:00	105.0	↓-0.5
4/20 03:10	104.3	↓-0.7
4/20 03:20	103.4	↓-0.9
4/20 03:30	102.3	↓-1.1
4/20 03:40	101.0	↓-1.3
4/20 03:50	99.6	↓-1.4
4/20 04:00	98.0	↓-1.6
4/20 04:10	96.2	↓-1.8
4/20 04:20	94.4	↓-1.8
4/20 04:30	92.4	↓-2.0
4/20 04:40	90.3	↓-2.1
4/20 04:50	88.2	↓-2.1
4/20 05:00	86.0	↓-2.2
4/20 05:10	83.8	↓-2.2
4/20 05:20	81.6	↓-2.2
4/20 05:30	79.4	↓-2.2
4/20 05:40	77.1	↓-2.3
4/20 05:50	75.0	↓-2.1
4/20 06:00	72.9	↓-2.1
4/20 06:10	70.8	↓-2.1
4/20 06:20	68.8	↓-2.0
4/20 06:30	66.9	↓-1.9
4/20 06:40	65.1	↓-1.8
4/20 06:50	63.5	↓-1.6
4/20 07:00	61.9	↓-1.6
4/20 07:10	60.4	↓-1.5
4/20 07:20	59.1	↓-1.3
4/20 07:30	58.0	↓-1.1
4/20 07:40	57.0	↓-1.0
4/20 07:50	56.2	↓-0.8
4/20 08:00	55.5	↓-0.7
4/20 08:10	55.0	↓-0.5
4/20 08:20	54.7	↓-0.3
4/20 08:30	54.6	↓-0.1	干潮
4/20 08:40	54.7	↑0.1
4/20 08:50	54.9	↑0.2
4/20 09:00	55.4	↑0.5
4/20 09:10	56.0	↑0.6
4/20 09:20	56.9	↑0.9
4/20 09:30	57.9	↑1.0
4/20 09:40	59.1	↑1.2
4/20 09:50	60.5	↑1.4
4/20 10:00	62.0	↑1.5
4/20 10:10	63.7	↑1.7
4/20 10:20	65.5	↑1.8
4/20 10:30	67.4	↑1.9
4/20 10:40	69.4	↑2.0
4/20 10:50	71.4	↑2.0
4/20 11:00	73.5	↑2.1
4/20 11:10	75.7	↑2.2
4/20 11:20	77.8	↑2.1
4/20 11:30	80.0	↑2.2
4/20 11:40	82.1	↑2.1
4/20 11:50	84.2	↑2.1
4/20 12:00	86.3	↑2.1
4/20 12:10	88.2	↑1.9
4/20 12:20	90.1	↑1.9
4/20 12:30	91.9	↑1.8
4/20 12:40	93.6	↑1.7
4/20 12:50	95.2	↑1.6
4/20 13:00	96.6	↑1.4
4/20 13:10	97.9	↑1.3
4/20 13:20	99.0	↑1.1
4/20 13:30	100.0	↑1.0
4/20 13:40	100.8	↑0.8
4/20 13:50	101.4	↑0.6
4/20 14:00	101.8	↑0.4
4/20 14:10	102.0	↑0.2	満潮
4/20 14:20	102.0	0
4/20 14:30	101.8	↓-0.2
4/20 14:40	101.4	↓-0.4
4/20 14:50	100.8	↓-0.6
4/20 15:00	99.9	↓-0.9
4/20 15:10	98.8	↓-1.1
4/20 15:20	97.5	↓-1.3
4/20 15:30	96.0	↓-1.5
4/20 15:40	94.3	↓-1.7
4/20 15:50	92.4	↓-1.9
4/20 16:00	90.3	↓-2.1
4/20 16:10	88.0	↓-2.3
4/20 16:20	85.6	↓-2.4
4/20 16:30	83.1	↓-2.5
4/20 16:40	80.5	↓-2.6
4/20 16:50	77.8	↓-2.7
4/20 17:00	75.0	↓-2.8
4/20 17:10	72.2	↓-2.8
4/20 17:20	69.4	↓-2.8
4/20 17:30	66.6	↓-2.8
4/20 17:40	63.9	↓-2.7
4/20 17:50	61.1	↓-2.8
4/20 18:00	58.5	↓-2.6
4/20 18:10	55.9	↓-2.6
4/20 18:20	53.5	↓-2.4
4/20 18:30	51.2	↓-2.3
4/20 18:40	49.0	↓-2.2
4/20 18:50	47.0	↓-2.0
4/20 19:00	45.1	↓-1.9
4/20 19:10	43.5	↓-1.6
4/20 19:20	42.0	↓-1.5
4/20 19:30	40.7	↓-1.3
4/20 19:40	39.6	↓-1.1
4/20 19:50	38.7	↓-0.9
4/20 20:00	38.1	↓-0.6
4/20 20:10	37.6	↓-0.5
4/20 20:20	37.4	↓-0.2	干潮
4/20 20:30	37.5	↑0.1
4/20 20:40	37.7	↑0.2
4/20 20:50	38.2	↑0.5
4/20 21:00	39.0	↑0.8
4/20 21:10	40.0	↑1.0
4/20 21:20	41.2	↑1.2
4/20 21:30	42.7	↑1.5
4/20 21:40	44.4	↑1.7
4/20 21:50	46.3	↑1.9
4/20 22:00	48.4	↑2.1
4/20 22:10	50.6	↑2.2
4/20 22:20	53.1	↑2.5
4/20 22:30	55.7	↑2.6
4/20 22:40	58.4	↑2.7
4/20 22:50	61.2	↑2.8
4/20 23:00	64.1	↑2.9
4/20 23:10	67.1	↑3.0
4/20 23:20	70.1	↑3.0
4/20 23:30	73.1	↑3.0
4/20 23:40	76.2	↑3.1	最大潮位差
4/20 23:50	79.2	↑3.0