31 (水)	06:10	11:24	16:45	23:47
	124cm	75cm	129cm	7cm
中潮 出 06:49 入 16:34 出 19:02 入 08:02

大洗（茨城）2031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	6.2	↑1.5
12/31 00:10	8.1	↑1.9
12/31 00:20	10.3	↑2.2
12/31 00:30	12.9	↑2.6
12/31 00:40	15.7	↑2.8
12/31 00:50	18.9	↑3.2
12/31 01:00	22.3	↑3.4
12/31 01:10	26.0	↑3.7
12/31 01:20	30.0	↑4.0
12/31 01:30	34.1	↑4.1
12/31 01:40	38.3	↑4.2
12/31 01:50	42.8	↑4.5
12/31 02:00	47.3	↑4.5
12/31 02:10	51.9	↑4.6
12/31 02:20	56.6	↑4.7	最大潮位差
12/31 02:30	61.2	↑4.6
12/31 02:40	65.9	↑4.7	最大潮位差
12/31 02:50	70.5	↑4.6
12/31 03:00	75.1	↑4.6
12/31 03:10	79.6	↑4.5
12/31 03:20	83.9	↑4.3
12/31 03:30	88.1	↑4.2
12/31 03:40	92.1	↑4.0
12/31 03:50	96.0	↑3.9
12/31 04:00	99.7	↑3.7
12/31 04:10	103.1	↑3.4
12/31 04:20	106.3	↑3.2
12/31 04:30	109.2	↑2.9
12/31 04:40	111.9	↑2.7
12/31 04:50	114.4	↑2.5
12/31 05:00	116.5	↑2.1
12/31 05:10	118.4	↑1.9
12/31 05:20	120.0	↑1.6
12/31 05:30	121.2	↑1.2
12/31 05:40	122.2	↑1.0
12/31 05:50	122.9	↑0.7
12/31 06:00	123.3	↑0.4	満潮
12/31 06:10	123.4	↑0.1	満潮
12/31 06:20	123.3	↓-0.1
12/31 06:30	122.8	↓-0.5
12/31 06:40	122.2	↓-0.6
12/31 06:50	121.2	↓-1.0
12/31 07:00	120.0	↓-1.2
12/31 07:10	118.6	↓-1.4
12/31 07:20	117.0	↓-1.6
12/31 07:30	115.3	↓-1.7
12/31 07:40	113.3	↓-2.0
12/31 07:50	111.2	↓-2.1
12/31 08:00	109.1	↓-2.1
12/31 08:10	106.8	↓-2.3
12/31 08:20	104.4	↓-2.4
12/31 08:30	102.1	↓-2.3
12/31 08:40	99.7	↓-2.4
12/31 08:50	97.3	↓-2.4
12/31 09:00	94.9	↓-2.4
12/31 09:10	92.6	↓-2.3
12/31 09:20	90.3	↓-2.3
12/31 09:30	88.1	↓-2.2
12/31 09:40	86.1	↓-2.0
12/31 09:50	84.2	↓-1.9
12/31 10:00	82.4	↓-1.8
12/31 10:10	80.8	↓-1.6
12/31 10:20	79.3	↓-1.5
12/31 10:30	78.1	↓-1.2
12/31 10:40	77.0	↓-1.1
12/31 10:50	76.2	↓-0.8
12/31 11:00	75.5	↓-0.7
12/31 11:10	75.1	↓-0.4
12/31 11:20	74.9	↓-0.2	干潮
12/31 11:30	75.0	↑0.1
12/31 11:40	75.2	↑0.2
12/31 11:50	75.7	↑0.5
12/31 12:00	76.5	↑0.8
12/31 12:10	77.5	↑1.0
12/31 12:20	78.7	↑1.2
12/31 12:30	80.1	↑1.4
12/31 12:40	81.7	↑1.6
12/31 12:50	83.5	↑1.8
12/31 13:00	85.4	↑1.9
12/31 13:10	87.6	↑2.2
12/31 13:20	89.8	↑2.2
12/31 13:30	92.2	↑2.4
12/31 13:40	94.7	↑2.5
12/31 13:50	97.3	↑2.6
12/31 14:00	99.9	↑2.6
12/31 14:10	102.5	↑2.6
12/31 14:20	105.1	↑2.6
12/31 14:30	107.7	↑2.6
12/31 14:40	110.2	↑2.5
12/31 14:50	112.7	↑2.5
12/31 15:00	115.0	↑2.3
12/31 15:10	117.3	↑2.3
12/31 15:20	119.3	↑2.0
12/31 15:30	121.2	↑1.9
12/31 15:40	123.0	↑1.8
12/31 15:50	124.5	↑1.5
12/31 16:00	125.7	↑1.2
12/31 16:10	126.8	↑1.1
12/31 16:20	127.6	↑0.8
12/31 16:30	128.1	↑0.5
12/31 16:40	128.4	↑0.3	満潮
12/31 16:50	128.4	0
12/31 17:00	128.1	↓-0.3
12/31 17:10	127.5	↓-0.6
12/31 17:20	126.6	↓-0.9
12/31 17:30	125.4	↓-1.2
12/31 17:40	123.9	↓-1.5
12/31 17:50	122.2	↓-1.7
12/31 18:00	120.1	↓-2.1
12/31 18:10	117.8	↓-2.3
12/31 18:20	115.2	↓-2.6
12/31 18:30	112.3	↓-2.9
12/31 18:40	109.2	↓-3.1
12/31 18:50	105.8	↓-3.4
12/31 19:00	102.2	↓-3.6
12/31 19:10	98.4	↓-3.8
12/31 19:20	94.4	↓-4.0
12/31 19:30	90.3	↓-4.1
12/31 19:40	86.0	↓-4.3
12/31 19:50	81.6	↓-4.4
12/31 20:00	77.1	↓-4.5
12/31 20:10	72.5	↓-4.6
12/31 20:20	67.9	↓-4.6
12/31 20:30	63.3	↓-4.6
12/31 20:40	58.7	↓-4.6
12/31 20:50	54.1	↓-4.6
12/31 21:00	49.7	↓-4.4
12/31 21:10	45.3	↓-4.4
12/31 21:20	41.0	↓-4.3
12/31 21:30	36.9	↓-4.1
12/31 21:40	33.0	↓-3.9
12/31 21:50	29.3	↓-3.7
12/31 22:00	25.8	↓-3.5
12/31 22:10	22.5	↓-3.3
12/31 22:20	19.5	↓-3.0
12/31 22:30	16.8	↓-2.7
12/31 22:40	14.4	↓-2.4
12/31 22:50	12.3	↓-2.1
12/31 23:00	10.5	↓-1.8
12/31 23:10	9.1	↓-1.4
12/31 23:20	8.0	↓-1.1
12/31 23:30	7.3	↓-0.7
12/31 23:40	6.9	↓-0.4	干潮
12/31 23:50	6.9	0