20 (水)	06:02	00:36	20:31	13:16
	122cm	73cm	104cm	15cm
中潮 出 04:59 入 18:17 出 23:10 入 08:44 潮干狩り ◎ 11:14～15:20

日立（茨城）2033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	74.1	↓-0.7
4/20 00:10	73.5	↓-0.6
4/20 00:20	73.2	↓-0.3
4/20 00:30	73.0	↓-0.2	干潮
4/20 00:40	73.0	0
4/20 00:50	73.2	↑0.2
4/20 01:00	73.6	↑0.4
4/20 01:10	74.1	↑0.5
4/20 01:20	74.9	↑0.8
4/20 01:30	75.8	↑0.9
4/20 01:40	76.9	↑1.1
4/20 01:50	78.2	↑1.3
4/20 02:00	79.6	↑1.4
4/20 02:10	81.2	↑1.6
4/20 02:20	83.0	↑1.8
4/20 02:30	84.9	↑1.9
4/20 02:40	86.9	↑2.0
4/20 02:50	89.0	↑2.1
4/20 03:00	91.3	↑2.3
4/20 03:10	93.5	↑2.2
4/20 03:20	95.9	↑2.4
4/20 03:30	98.2	↑2.3
4/20 03:40	100.6	↑2.4
4/20 03:50	103.0	↑2.4
4/20 04:00	105.3	↑2.3
4/20 04:10	107.5	↑2.2
4/20 04:20	109.6	↑2.1
4/20 04:30	111.6	↑2.0
4/20 04:40	113.5	↑1.9
4/20 04:50	115.2	↑1.7
4/20 05:00	116.8	↑1.6
4/20 05:10	118.1	↑1.3
4/20 05:20	119.2	↑1.1
4/20 05:30	120.1	↑0.9
4/20 05:40	120.8	↑0.7
4/20 05:50	121.2	↑0.4
4/20 06:00	121.3	↑0.1	満潮
4/20 06:10	121.2	↓-0.1
4/20 06:20	120.9	↓-0.3
4/20 06:30	120.3	↓-0.6
4/20 06:40	119.4	↓-0.9
4/20 06:50	118.2	↓-1.2
4/20 07:00	116.8	↓-1.4
4/20 07:10	115.2	↓-1.6
4/20 07:20	113.2	↓-2.0
4/20 07:30	111.1	↓-2.1
4/20 07:40	108.7	↓-2.4
4/20 07:50	106.1	↓-2.6
4/20 08:00	103.3	↓-2.8
4/20 08:10	100.3	↓-3.0
4/20 08:20	97.1	↓-3.2
4/20 08:30	93.7	↓-3.4
4/20 08:40	90.2	↓-3.5
4/20 08:50	86.6	↓-3.6
4/20 09:00	82.8	↓-3.8
4/20 09:10	78.9	↓-3.9
4/20 09:20	75.0	↓-3.9
4/20 09:30	71.1	↓-3.9
4/20 09:40	67.1	↓-4.0	最大潮位差
4/20 09:50	63.1	↓-4.0	最大潮位差
4/20 10:00	59.1	↓-4.0	最大潮位差
4/20 10:10	55.2	↓-3.9
4/20 10:20	51.4	↓-3.8
4/20 10:30	47.6	↓-3.8
4/20 10:40	44.0	↓-3.6
4/20 10:50	40.6	↓-3.4
4/20 11:00	37.3	↓-3.3
4/20 11:10	34.1	↓-3.2
4/20 11:20	31.2	↓-2.9
4/20 11:30	28.5	↓-2.7
4/20 11:40	25.9	↓-2.6
4/20 11:50	23.7	↓-2.2
4/20 12:00	21.6	↓-2.1
4/20 12:10	19.8	↓-1.8
4/20 12:20	18.3	↓-1.5
4/20 12:30	17.0	↓-1.3
4/20 12:40	15.9	↓-1.1
4/20 12:50	15.2	↓-0.7
4/20 13:00	14.6	↓-0.6
4/20 13:10	14.4	↓-0.2	干潮
4/20 13:20	14.4	0
4/20 13:30	14.7	↑0.3
4/20 13:40	15.2	↑0.5
4/20 13:50	16.0	↑0.8
4/20 14:00	17.0	↑1.0
4/20 14:10	18.3	↑1.3
4/20 14:20	19.8	↑1.5
4/20 14:30	21.6	↑1.8
4/20 14:40	23.5	↑1.9
4/20 14:50	25.7	↑2.2
4/20 15:00	28.1	↑2.4
4/20 15:10	30.6	↑2.5
4/20 15:20	33.3	↑2.7
4/20 15:30	36.2	↑2.9
4/20 15:40	39.1	↑2.9
4/20 15:50	42.2	↑3.1
4/20 16:00	45.4	↑3.2
4/20 16:10	48.6	↑3.2
4/20 16:20	51.9	↑3.3
4/20 16:30	55.2	↑3.3
4/20 16:40	58.5	↑3.3
4/20 16:50	61.8	↑3.3
4/20 17:00	65.1	↑3.3
4/20 17:10	68.3	↑3.2
4/20 17:20	71.4	↑3.1
4/20 17:30	74.4	↑3.0
4/20 17:40	77.3	↑2.9
4/20 17:50	80.1	↑2.8
4/20 18:00	82.8	↑2.7
4/20 18:10	85.4	↑2.6
4/20 18:20	87.8	↑2.4
4/20 18:30	90.0	↑2.2
4/20 18:40	92.1	↑2.1
4/20 18:50	94.0	↑1.9
4/20 19:00	95.7	↑1.7
4/20 19:10	97.3	↑1.6
4/20 19:20	98.7	↑1.4
4/20 19:30	99.8	↑1.1
4/20 19:40	100.9	↑1.1
4/20 19:50	101.7	↑0.8
4/20 20:00	102.3	↑0.6
4/20 20:10	102.7	↑0.4
4/20 20:20	103.0	↑0.3
4/20 20:30	103.1	↑0.1	満潮
4/20 20:40	103.0	↓-0.1
4/20 20:50	102.7	↓-0.3
4/20 21:00	102.3	↓-0.4
4/20 21:10	101.8	↓-0.5
4/20 21:20	101.0	↓-0.8
4/20 21:30	100.2	↓-0.8
4/20 21:40	99.2	↓-1.0
4/20 21:50	98.2	↓-1.0
4/20 22:00	97.0	↓-1.2
4/20 22:10	95.8	↓-1.2
4/20 22:20	94.6	↓-1.2
4/20 22:30	93.2	↓-1.4
4/20 22:40	91.9	↓-1.3
4/20 22:50	90.6	↓-1.3
4/20 23:00	89.3	↓-1.3
4/20 23:10	88.0	↓-1.3
4/20 23:20	86.7	↓-1.3
4/20 23:30	85.5	↓-1.2
4/20 23:40	84.3	↓-1.2
4/20 23:50	83.3	↓-1.0