31 (火)	05:39	10:16	15:11	22:47
	127cm	96cm	135cm	-7cm
大潮 出 06:49 入 16:34 出 07:17 入 16:32

日立（茨城）2024年12月31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
12/31 00:00	17.4	↑3.3
12/31 00:10	21.0	↑3.6
12/31 00:20	24.8	↑3.8
12/31 00:30	28.8	↑4.0
12/31 00:40	33.0	↑4.2
12/31 00:50	37.3	↑4.3
12/31 01:00	41.7	↑4.4
12/31 01:10	46.3	↑4.6
12/31 01:20	50.8	↑4.5
12/31 01:30	55.4	↑4.6
12/31 01:40	60.1	↑4.7
12/31 01:50	64.7	↑4.6
12/31 02:00	69.2	↑4.5
12/31 02:10	73.7	↑4.5
12/31 02:20	78.1	↑4.4
12/31 02:30	82.4	↑4.3
12/31 02:40	86.6	↑4.2
12/31 02:50	90.6	↑4.0
12/31 03:00	94.5	↑3.9
12/31 03:10	98.2	↑3.7
12/31 03:20	101.7	↑3.5
12/31 03:30	105.0	↑3.3
12/31 03:40	108.2	↑3.2
12/31 03:50	111.1	↑2.9
12/31 04:00	113.7	↑2.6
12/31 04:10	116.2	↑2.5
12/31 04:20	118.4	↑2.2
12/31 04:30	120.3	↑1.9
12/31 04:40	122.0	↑1.7
12/31 04:50	123.4	↑1.4
12/31 05:00	124.6	↑1.2
12/31 05:10	125.4	↑0.8
12/31 05:20	126.0	↑0.6
12/31 05:30	126.4	↑0.4	満潮
12/31 05:40	126.4	0
12/31 05:50	126.2	↓-0.2
12/31 06:00	125.8	↓-0.4
12/31 06:10	125.2	↓-0.6
12/31 06:20	124.3	↓-0.9
12/31 06:30	123.2	↓-1.1
12/31 06:40	122.0	↓-1.2
12/31 06:50	120.6	↓-1.4
12/31 07:00	119.1	↓-1.5
12/31 07:10	117.5	↓-1.6
12/31 07:20	115.9	↓-1.6
12/31 07:30	114.1	↓-1.8
12/31 07:40	112.4	↓-1.7
12/31 07:50	110.6	↓-1.8
12/31 08:00	108.9	↓-1.7
12/31 08:10	107.2	↓-1.7
12/31 08:20	105.6	↓-1.6
12/31 08:30	104.0	↓-1.6
12/31 08:40	102.5	↓-1.5
12/31 08:50	101.2	↓-1.3
12/31 09:00	99.9	↓-1.3
12/31 09:10	98.8	↓-1.1
12/31 09:20	97.8	↓-1.0
12/31 09:30	97.0	↓-0.8
12/31 09:40	96.3	↓-0.7
12/31 09:50	95.8	↓-0.5
12/31 10:00	95.4	↓-0.4
12/31 10:10	95.3	↓-0.1	干潮
12/31 10:20	95.3	0
12/31 10:30	95.4	↑0.1
12/31 10:40	95.8	↑0.4
12/31 10:50	96.4	↑0.6
12/31 11:00	97.1	↑0.7
12/31 11:10	98.0	↑0.9
12/31 11:20	99.1	↑1.1
12/31 11:30	100.4	↑1.3
12/31 11:40	101.8	↑1.4
12/31 11:50	103.4	↑1.6
12/31 12:00	105.2	↑1.8
12/31 12:10	107.0	↑1.8
12/31 12:20	109.0	↑2.0
12/31 12:30	111.0	↑2.0
12/31 12:40	113.1	↑2.1
12/31 12:50	115.3	↑2.2
12/31 13:00	117.4	↑2.1
12/31 13:10	119.5	↑2.1
12/31 13:20	121.6	↑2.1
12/31 13:30	123.6	↑2.0
12/31 13:40	125.5	↑1.9
12/31 13:50	127.3	↑1.8
12/31 14:00	129.0	↑1.7
12/31 14:10	130.4	↑1.4
12/31 14:20	131.7	↑1.3
12/31 14:30	132.8	↑1.1
12/31 14:40	133.7	↑0.9
12/31 14:50	134.3	↑0.6
12/31 15:00	134.7	↑0.4
12/31 15:10	134.8	↑0.1	満潮
12/31 15:20	134.7	↓-0.1
12/31 15:30	134.3	↓-0.4
12/31 15:40	133.6	↓-0.7
12/31 15:50	132.6	↓-1.0
12/31 16:00	131.4	↓-1.2
12/31 16:10	129.9	↓-1.5
12/31 16:20	128.1	↓-1.8
12/31 16:30	126.0	↓-2.1
12/31 16:40	123.7	↓-2.3
12/31 16:50	121.0	↓-2.7
12/31 17:00	118.1	↓-2.9
12/31 17:10	114.9	↓-3.2
12/31 17:20	111.5	↓-3.4
12/31 17:30	107.8	↓-3.7
12/31 17:40	103.9	↓-3.9
12/31 17:50	99.8	↓-4.1
12/31 18:00	95.4	↓-4.4
12/31 18:10	90.9	↓-4.5
12/31 18:20	86.2	↓-4.7
12/31 18:30	81.4	↓-4.8
12/31 18:40	76.4	↓-5.0
12/31 18:50	71.4	↓-5.0
12/31 19:00	66.3	↓-5.1	最大潮位差
12/31 19:10	61.2	↓-5.1	最大潮位差
12/31 19:20	56.1	↓-5.1	最大潮位差
12/31 19:30	51.0	↓-5.1	最大潮位差
12/31 19:40	46.0	↓-5.0
12/31 19:50	41.0	↓-5.0
12/31 20:00	36.3	↓-4.7
12/31 20:10	31.6	↓-4.7
12/31 20:20	27.1	↓-4.5
12/31 20:30	22.9	↓-4.2
12/31 20:40	18.8	↓-4.1
12/31 20:50	15.0	↓-3.8
12/31 21:00	11.5	↓-3.5
12/31 21:10	8.2	↓-3.3
12/31 21:20	5.2	↓-3.0
12/31 21:30	2.5	↓-2.7
12/31 21:40	0.1	↓-2.4
12/31 21:50	-1.9	↓-2.0
12/31 22:00	-3.7	↓-1.8
12/31 22:10	-5.1	↓-1.4
12/31 22:20	-6.1	↓-1.0
12/31 22:30	-6.8	↓-0.7
12/31 22:40	-7.2	↓-0.4	干潮
12/31 22:50	-7.2	0
12/31 23:00	-6.9	↑0.3
12/31 23:10	-6.2	↑0.7
12/31 23:20	-5.2	↑1.0
12/31 23:30	-3.8	↑1.4
12/31 23:40	-2.0	↑1.8
12/31 23:50	0.1	↑2.1