31 (木)	10:49	04:09	-	18:09
	121cm	61cm	-	51cm
長潮 出 06:49 入 16:34 出 00:49 入 12:38

日立（茨城）2037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	88.1	↓-1.0
12/31 00:10	87.0	↓-1.1
12/31 00:20	85.8	↓-1.2
12/31 00:30	84.5	↓-1.3
12/31 00:40	83.2	↓-1.3
12/31 00:50	81.9	↓-1.3
12/31 01:00	80.5	↓-1.4
12/31 01:10	79.1	↓-1.4
12/31 01:20	77.6	↓-1.5
12/31 01:30	76.2	↓-1.4
12/31 01:40	74.7	↓-1.5
12/31 01:50	73.2	↓-1.5
12/31 02:00	71.8	↓-1.4
12/31 02:10	70.4	↓-1.4
12/31 02:20	69.0	↓-1.4
12/31 02:30	67.7	↓-1.3
12/31 02:40	66.5	↓-1.2
12/31 02:50	65.3	↓-1.2
12/31 03:00	64.3	↓-1.0
12/31 03:10	63.3	↓-1.0
12/31 03:20	62.5	↓-0.8
12/31 03:30	61.8	↓-0.7
12/31 03:40	61.3	↓-0.5
12/31 03:50	60.9	↓-0.4
12/31 04:00	60.7	↓-0.2	干潮
12/31 04:10	60.7	0
12/31 04:20	60.8	↑0.1
12/31 04:30	61.1	↑0.3
12/31 04:40	61.6	↑0.5
12/31 04:50	62.3	↑0.7
12/31 05:00	63.1	↑0.8
12/31 05:10	64.1	↑1.0
12/31 05:20	65.2	↑1.1
12/31 05:30	66.5	↑1.3
12/31 05:40	68.0	↑1.5
12/31 05:50	69.6	↑1.6
12/31 06:00	71.3	↑1.7
12/31 06:10	73.1	↑1.8
12/31 06:20	75.1	↑2.0
12/31 06:30	77.1	↑2.0
12/31 06:40	79.2	↑2.1
12/31 06:50	81.4	↑2.2
12/31 07:00	83.7	↑2.3
12/31 07:10	85.9	↑2.2
12/31 07:20	88.3	↑2.4
12/31 07:30	90.6	↑2.3
12/31 07:40	92.9	↑2.3
12/31 07:50	95.3	↑2.4
12/31 08:00	97.6	↑2.3
12/31 08:10	99.8	↑2.2
12/31 08:20	102.1	↑2.3
12/31 08:30	104.2	↑2.1
12/31 08:40	106.3	↑2.1
12/31 08:50	108.3	↑2.0
12/31 09:00	110.1	↑1.8
12/31 09:10	111.9	↑1.8
12/31 09:20	113.5	↑1.6
12/31 09:30	115.0	↑1.5
12/31 09:40	116.3	↑1.3
12/31 09:50	117.4	↑1.1
12/31 10:00	118.4	↑1.0
12/31 10:10	119.2	↑0.8
12/31 10:20	119.8	↑0.6
12/31 10:30	120.2	↑0.4
12/31 10:40	120.5	↑0.3	満潮
12/31 10:50	120.5	0
12/31 11:00	120.4	↓-0.1
12/31 11:10	120.1	↓-0.3
12/31 11:20	119.6	↓-0.5
12/31 11:30	118.9	↓-0.7
12/31 11:40	118.0	↓-0.9
12/31 11:50	117.0	↓-1.0
12/31 12:00	115.9	↓-1.1
12/31 12:10	114.5	↓-1.4
12/31 12:20	113.1	↓-1.4
12/31 12:30	111.5	↓-1.6
12/31 12:40	109.8	↓-1.7
12/31 12:50	107.9	↓-1.9
12/31 13:00	106.0	↓-1.9
12/31 13:10	103.9	↓-2.1
12/31 13:20	101.7	↓-2.2
12/31 13:30	99.5	↓-2.2
12/31 13:40	97.2	↓-2.3
12/31 13:50	94.8	↓-2.4
12/31 14:00	92.4	↓-2.4
12/31 14:10	89.9	↓-2.5
12/31 14:20	87.4	↓-2.5
12/31 14:30	84.8	↓-2.6	最大潮位差
12/31 14:40	82.3	↓-2.5
12/31 14:50	79.8	↓-2.5
12/31 15:00	77.2	↓-2.6	最大潮位差
12/31 15:10	74.8	↓-2.4
12/31 15:20	72.4	↓-2.4
12/31 15:30	70.0	↓-2.4
12/31 15:40	67.8	↓-2.2
12/31 15:50	65.6	↓-2.2
12/31 16:00	63.6	↓-2.0
12/31 16:10	61.7	↓-1.9
12/31 16:20	59.9	↓-1.8
12/31 16:30	58.2	↓-1.7
12/31 16:40	56.7	↓-1.5
12/31 16:50	55.4	↓-1.3
12/31 17:00	54.2	↓-1.2
12/31 17:10	53.2	↓-1.0
12/31 17:20	52.3	↓-0.9
12/31 17:30	51.6	↓-0.7
12/31 17:40	51.1	↓-0.5
12/31 17:50	50.7	↓-0.4
12/31 18:00	50.5	↓-0.2	干潮
12/31 18:10	50.5	0
12/31 18:20	50.6	↑0.1
12/31 18:30	50.9	↑0.3
12/31 18:40	51.3	↑0.4
12/31 18:50	51.8	↑0.5
12/31 19:00	52.5	↑0.7
12/31 19:10	53.4	↑0.9
12/31 19:20	54.3	↑0.9
12/31 19:30	55.4	↑1.1
12/31 19:40	56.6	↑1.2
12/31 19:50	57.9	↑1.3
12/31 20:00	59.3	↑1.4
12/31 20:10	60.8	↑1.5
12/31 20:20	62.4	↑1.6
12/31 20:30	64.1	↑1.7
12/31 20:40	65.8	↑1.7
12/31 20:50	67.6	↑1.8
12/31 21:00	69.4	↑1.8
12/31 21:10	71.2	↑1.8
12/31 21:20	73.0	↑1.8
12/31 21:30	74.9	↑1.9
12/31 21:40	76.7	↑1.8
12/31 21:50	78.4	↑1.7
12/31 22:00	80.2	↑1.8
12/31 22:10	81.8	↑1.6
12/31 22:20	83.4	↑1.6
12/31 22:30	84.9	↑1.5
12/31 22:40	86.3	↑1.4
12/31 22:50	87.7	↑1.4
12/31 23:00	88.9	↑1.2
12/31 23:10	90.0	↑1.1
12/31 23:20	91.0	↑1.0
12/31 23:30	91.9	↑0.9
12/31 23:40	92.6	↑0.7
12/31 23:50	93.3	↑0.7