5 (水)	04:09	09:06	14:22	21:33
	108cm	79cm	117cm	8cm
大潮 出 06:37 入 17:09 出 15:11 入 04:43

日立（茨城）2031年02月5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
2/5 00:00	52.3	↑3.4
2/5 00:10	55.7	↑3.4
2/5 00:20	59.2	↑3.5
2/5 00:30	62.6	↑3.4
2/5 00:40	65.9	↑3.3
2/5 00:50	69.3	↑3.4
2/5 01:00	72.5	↑3.2
2/5 01:10	75.7	↑3.2
2/5 01:20	78.8	↑3.1
2/5 01:30	81.8	↑3.0
2/5 01:40	84.7	↑2.9
2/5 01:50	87.4	↑2.7
2/5 02:00	90.1	↑2.7
2/5 02:10	92.5	↑2.4
2/5 02:20	94.9	↑2.4
2/5 02:30	97.0	↑2.1
2/5 02:40	99.0	↑2.0
2/5 02:50	100.8	↑1.8
2/5 03:00	102.4	↑1.6
2/5 03:10	103.7	↑1.3
2/5 03:20	104.9	↑1.2
2/5 03:30	105.9	↑1.0
2/5 03:40	106.6	↑0.7
2/5 03:50	107.1	↑0.5
2/5 04:00	107.4	↑0.3	満潮
2/5 04:10	107.4	0
2/5 04:20	107.3	↓-0.1
2/5 04:30	106.9	↓-0.4
2/5 04:40	106.4	↓-0.5
2/5 04:50	105.7	↓-0.7
2/5 05:00	104.8	↓-0.9
2/5 05:10	103.8	↓-1.0
2/5 05:20	102.7	↓-1.1
2/5 05:30	101.5	↓-1.2
2/5 05:40	100.2	↓-1.3
2/5 05:50	98.8	↓-1.4
2/5 06:00	97.3	↓-1.5
2/5 06:10	95.9	↓-1.4
2/5 06:20	94.4	↓-1.5
2/5 06:30	92.9	↓-1.5
2/5 06:40	91.5	↓-1.4
2/5 06:50	90.0	↓-1.5
2/5 07:00	88.7	↓-1.3
2/5 07:10	87.3	↓-1.4
2/5 07:20	86.1	↓-1.2
2/5 07:30	84.9	↓-1.2
2/5 07:40	83.8	↓-1.1
2/5 07:50	82.8	↓-1.0
2/5 08:00	81.8	↓-1.0
2/5 08:10	81.0	↓-0.8
2/5 08:20	80.3	↓-0.7
2/5 08:30	79.8	↓-0.5
2/5 08:40	79.3	↓-0.5
2/5 08:50	79.0	↓-0.3
2/5 09:00	78.9	↓-0.1	干潮
2/5 09:10	78.9	0
2/5 09:20	79.1	↑0.2
2/5 09:30	79.4	↑0.3
2/5 09:40	79.9	↑0.5
2/5 09:50	80.6	↑0.7
2/5 10:00	81.4	↑0.8
2/5 10:10	82.4	↑1.0
2/5 10:20	83.5	↑1.1
2/5 10:30	84.8	↑1.3
2/5 10:40	86.2	↑1.4
2/5 10:50	87.8	↑1.6
2/5 11:00	89.4	↑1.6
2/5 11:10	91.1	↑1.7
2/5 11:20	93.0	↑1.9
2/5 11:30	94.8	↑1.8
2/5 11:40	96.7	↑1.9
2/5 11:50	98.6	↑1.9
2/5 12:00	100.5	↑1.9
2/5 12:10	102.4	↑1.9
2/5 12:20	104.2	↑1.8
2/5 12:30	105.9	↑1.7
2/5 12:40	107.6	↑1.7
2/5 12:50	109.2	↑1.6
2/5 13:00	110.6	↑1.4
2/5 13:10	111.9	↑1.3
2/5 13:20	113.1	↑1.2
2/5 13:30	114.2	↑1.1
2/5 13:40	115.0	↑0.8
2/5 13:50	115.7	↑0.7
2/5 14:00	116.2	↑0.5
2/5 14:10	116.6	↑0.4
2/5 14:20	116.7	↑0.1	満潮
2/5 14:30	116.6	↓-0.1
2/5 14:40	116.3	↓-0.3
2/5 14:50	115.8	↓-0.5
2/5 15:00	115.0	↓-0.8
2/5 15:10	114.0	↓-1.0
2/5 15:20	112.8	↓-1.2
2/5 15:30	111.3	↓-1.5
2/5 15:40	109.5	↓-1.8
2/5 15:50	107.5	↓-2.0
2/5 16:00	105.3	↓-2.2
2/5 16:10	102.8	↓-2.5
2/5 16:20	100.0	↓-2.8
2/5 16:30	97.1	↓-2.9
2/5 16:40	93.9	↓-3.2
2/5 16:50	90.5	↓-3.4
2/5 17:00	86.9	↓-3.6
2/5 17:10	83.2	↓-3.7
2/5 17:20	79.3	↓-3.9
2/5 17:30	75.4	↓-3.9
2/5 17:40	71.3	↓-4.1
2/5 17:50	67.2	↓-4.1
2/5 18:00	63.0	↓-4.2	最大潮位差
2/5 18:10	58.9	↓-4.1
2/5 18:20	54.7	↓-4.2	最大潮位差
2/5 18:30	50.7	↓-4.0
2/5 18:40	46.6	↓-4.1
2/5 18:50	42.7	↓-3.9
2/5 19:00	38.9	↓-3.8
2/5 19:10	35.3	↓-3.6
2/5 19:20	31.8	↓-3.5
2/5 19:30	28.5	↓-3.3
2/5 19:40	25.4	↓-3.1
2/5 19:50	22.4	↓-3.0
2/5 20:00	19.7	↓-2.7
2/5 20:10	17.3	↓-2.4
2/5 20:20	15.0	↓-2.3
2/5 20:30	13.1	↓-1.9
2/5 20:40	11.4	↓-1.7
2/5 20:50	10.0	↓-1.4
2/5 21:00	8.8	↓-1.2
2/5 21:10	8.0	↓-0.8
2/5 21:20	7.5	↓-0.5
2/5 21:30	7.3	↓-0.2	干潮
2/5 21:40	7.4	↑0.1
2/5 21:50	7.8	↑0.4
2/5 22:00	8.6	↑0.8
2/5 22:10	9.6	↑1.0
2/5 22:20	11.0	↑1.4
2/5 22:30	12.7	↑1.7
2/5 22:40	14.7	↑2.0
2/5 22:50	16.9	↑2.2
2/5 23:00	19.5	↑2.6
2/5 23:10	22.3	↑2.8
2/5 23:20	25.3	↑3.0
2/5 23:30	28.5	↑3.2
2/5 23:40	31.9	↑3.4
2/5 23:50	35.5	↑3.6