20 (月)	05:41	00:07	19:47	12:50
	124cm	68cm	109cm	9cm
中潮 出 04:58 入 18:17 出 08:06 入 22:39 潮干狩り ◎ 10:40～15:01

日立（茨城）2037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	68.0	↓-0.3	干潮
4/20 00:10	68.0	0
4/20 00:20	68.2	↑0.2
4/20 00:30	68.6	↑0.4
4/20 00:40	69.2	↑0.6
4/20 00:50	70.0	↑0.8
4/20 01:00	71.1	↑1.1
4/20 01:10	72.3	↑1.2
4/20 01:20	73.7	↑1.4
4/20 01:30	75.3	↑1.6
4/20 01:40	77.1	↑1.8
4/20 01:50	79.0	↑1.9
4/20 02:00	81.2	↑2.2
4/20 02:10	83.4	↑2.2
4/20 02:20	85.8	↑2.4
4/20 02:30	88.2	↑2.4
4/20 02:40	90.8	↑2.6
4/20 02:50	93.4	↑2.6
4/20 03:00	96.0	↑2.6
4/20 03:10	98.7	↑2.7
4/20 03:20	101.3	↑2.6
4/20 03:30	104.0	↑2.7
4/20 03:40	106.5	↑2.5
4/20 03:50	108.9	↑2.4
4/20 04:00	111.3	↑2.4
4/20 04:10	113.5	↑2.2
4/20 04:20	115.5	↑2.0
4/20 04:30	117.4	↑1.9
4/20 04:40	119.0	↑1.6
4/20 04:50	120.4	↑1.4
4/20 05:00	121.6	↑1.2
4/20 05:10	122.6	↑1.0
4/20 05:20	123.2	↑0.6
4/20 05:30	123.7	↑0.5
4/20 05:40	123.8	↑0.1	満潮
4/20 05:50	123.7	↓-0.1
4/20 06:00	123.3	↓-0.4
4/20 06:10	122.6	↓-0.7
4/20 06:20	121.6	↓-1.0
4/20 06:30	120.4	↓-1.2
4/20 06:40	118.9	↓-1.5
4/20 06:50	117.1	↓-1.8
4/20 07:00	115.0	↓-2.1
4/20 07:10	112.7	↓-2.3
4/20 07:20	110.2	↓-2.5
4/20 07:30	107.4	↓-2.8
4/20 07:40	104.3	↓-3.1
4/20 07:50	101.1	↓-3.2
4/20 08:00	97.7	↓-3.4
4/20 08:10	94.1	↓-3.6
4/20 08:20	90.3	↓-3.8
4/20 08:30	86.3	↓-4.0
4/20 08:40	82.3	↓-4.0
4/20 08:50	78.1	↓-4.2
4/20 09:00	73.9	↓-4.2
4/20 09:10	69.6	↓-4.3	最大潮位差
4/20 09:20	65.3	↓-4.3	最大潮位差
4/20 09:30	61.0	↓-4.3	最大潮位差
4/20 09:40	56.7	↓-4.3	最大潮位差
4/20 09:50	52.4	↓-4.3	最大潮位差
4/20 10:00	48.3	↓-4.1
4/20 10:10	44.2	↓-4.1
4/20 10:20	40.3	↓-3.9
4/20 10:30	36.5	↓-3.8
4/20 10:40	32.9	↓-3.6
4/20 10:50	29.5	↓-3.4
4/20 11:00	26.3	↓-3.2
4/20 11:10	23.4	↓-2.9
4/20 11:20	20.6	↓-2.8
4/20 11:30	18.2	↓-2.4
4/20 11:40	16.0	↓-2.2
4/20 11:50	14.1	↓-1.9
4/20 12:00	12.5	↓-1.6
4/20 12:10	11.1	↓-1.4
4/20 12:20	10.1	↓-1.0
4/20 12:30	9.4	↓-0.7
4/20 12:40	8.9	↓-0.5	干潮
4/20 12:50	8.8	↓-0.1	干潮
4/20 13:00	9.0	↑0.2
4/20 13:10	9.4	↑0.4
4/20 13:20	10.2	↑0.8
4/20 13:30	11.3	↑1.1
4/20 13:40	12.6	↑1.3
4/20 13:50	14.3	↑1.7
4/20 14:00	16.2	↑1.9
4/20 14:10	18.4	↑2.2
4/20 14:20	20.8	↑2.4
4/20 14:30	23.5	↑2.7
4/20 14:40	26.4	↑2.9
4/20 14:50	29.5	↑3.1
4/20 15:00	32.8	↑3.3
4/20 15:10	36.2	↑3.4
4/20 15:20	39.8	↑3.6
4/20 15:30	43.5	↑3.7
4/20 15:40	47.3	↑3.8
4/20 15:50	51.1	↑3.8
4/20 16:00	55.0	↑3.9
4/20 16:10	58.9	↑3.9
4/20 16:20	62.8	↑3.9
4/20 16:30	66.6	↑3.8
4/20 16:40	70.3	↑3.7
4/20 16:50	74.0	↑3.7
4/20 17:00	77.5	↑3.5
4/20 17:10	80.9	↑3.4
4/20 17:20	84.2	↑3.3
4/20 17:30	87.3	↑3.1
4/20 17:40	90.2	↑2.9
4/20 17:50	92.9	↑2.7
4/20 18:00	95.4	↑2.5
4/20 18:10	97.7	↑2.3
4/20 18:20	99.8	↑2.1
4/20 18:30	101.6	↑1.8
4/20 18:40	103.3	↑1.7
4/20 18:50	104.7	↑1.4
4/20 19:00	105.9	↑1.2
4/20 19:10	106.8	↑0.9
4/20 19:20	107.5	↑0.7
4/20 19:30	108.0	↑0.5
4/20 19:40	108.2	↑0.2	満潮
4/20 19:50	108.3	↑0.1
4/20 20:00	108.1	↓-0.2
4/20 20:10	107.7	↓-0.4
4/20 20:20	107.1	↓-0.6
4/20 20:30	106.3	↓-0.8
4/20 20:40	105.3	↓-1.0
4/20 20:50	104.2	↓-1.1
4/20 21:00	102.9	↓-1.3
4/20 21:10	101.6	↓-1.3
4/20 21:20	100.1	↓-1.5
4/20 21:30	98.5	↓-1.6
4/20 21:40	96.8	↓-1.7
4/20 21:50	95.1	↓-1.7
4/20 22:00	93.4	↓-1.7
4/20 22:10	91.6	↓-1.8
4/20 22:20	89.9	↓-1.7
4/20 22:30	88.2	↓-1.7
4/20 22:40	86.6	↓-1.6
4/20 22:50	85.0	↓-1.6
4/20 23:00	83.5	↓-1.5
4/20 23:10	82.1	↓-1.4
4/20 23:20	80.9	↓-1.2
4/20 23:30	79.7	↓-1.2
4/20 23:40	78.7	↓-1.0
4/20 23:50	77.9	↓-0.8