20 (水)	10:55	04:02	-	18:02
	117cm	59cm	-	53cm
長潮 出 06:45 入 16:27 出 12:36 入 00:26

大洗（茨城）2034年12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
12/20 00:00	83.5	↓-1.3
12/20 00:10	82.2	↓-1.3
12/20 00:20	80.9	↓-1.3
12/20 00:30	79.5	↓-1.4
12/20 00:40	78.1	↓-1.4
12/20 00:50	76.7	↓-1.4
12/20 01:00	75.3	↓-1.4
12/20 01:10	73.9	↓-1.4
12/20 01:20	72.5	↓-1.4
12/20 01:30	71.1	↓-1.4
12/20 01:40	69.8	↓-1.3
12/20 01:50	68.5	↓-1.3
12/20 02:00	67.2	↓-1.3
12/20 02:10	66.0	↓-1.2
12/20 02:20	64.8	↓-1.2
12/20 02:30	63.7	↓-1.1
12/20 02:40	62.7	↓-1.0
12/20 02:50	61.8	↓-0.9
12/20 03:00	60.9	↓-0.9
12/20 03:10	60.2	↓-0.7
12/20 03:20	59.6	↓-0.6
12/20 03:30	59.1	↓-0.5
12/20 03:40	58.7	↓-0.4
12/20 03:50	58.5	↓-0.2
12/20 04:00	58.4	↓-0.1	干潮
12/20 04:10	58.4	0
12/20 04:20	58.7	↑0.3
12/20 04:30	59.0	↑0.3
12/20 04:40	59.5	↑0.5
12/20 04:50	60.2	↑0.7
12/20 05:00	61.1	↑0.9
12/20 05:10	62.1	↑1.0
12/20 05:20	63.2	↑1.1
12/20 05:30	64.5	↑1.3
12/20 05:40	66.0	↑1.5
12/20 05:50	67.5	↑1.5
12/20 06:00	69.2	↑1.7
12/20 06:10	71.0	↑1.8
12/20 06:20	72.9	↑1.9
12/20 06:30	74.9	↑2.0
12/20 06:40	77.0	↑2.1
12/20 06:50	79.1	↑2.1
12/20 07:00	81.2	↑2.1
12/20 07:10	83.4	↑2.2
12/20 07:20	85.7	↑2.3
12/20 07:30	87.9	↑2.2
12/20 07:40	90.1	↑2.2
12/20 07:50	92.3	↑2.2
12/20 08:00	94.5	↑2.2
12/20 08:10	96.7	↑2.2
12/20 08:20	98.8	↑2.1
12/20 08:30	100.8	↑2.0
12/20 08:40	102.8	↑2.0
12/20 08:50	104.6	↑1.8
12/20 09:00	106.4	↑1.8
12/20 09:10	108.1	↑1.7
12/20 09:20	109.6	↑1.5
12/20 09:30	111.0	↑1.4
12/20 09:40	112.3	↑1.3
12/20 09:50	113.5	↑1.2
12/20 10:00	114.4	↑0.9
12/20 10:10	115.3	↑0.9
12/20 10:20	115.9	↑0.6
12/20 10:30	116.4	↑0.5
12/20 10:40	116.8	↑0.4
12/20 10:50	116.9	↑0.1	満潮
12/20 11:00	116.9	0
12/20 11:10	116.7	↓-0.2
12/20 11:20	116.4	↓-0.3
12/20 11:30	115.9	↓-0.5
12/20 11:40	115.2	↓-0.7
12/20 11:50	114.3	↓-0.9
12/20 12:00	113.3	↓-1.0
12/20 12:10	112.2	↓-1.1
12/20 12:20	111.0	↓-1.2
12/20 12:30	109.6	↓-1.4
12/20 12:40	108.0	↓-1.6
12/20 12:50	106.4	↓-1.6
12/20 13:00	104.7	↓-1.7
12/20 13:10	102.8	↓-1.9
12/20 13:20	100.9	↓-1.9
12/20 13:30	98.9	↓-2.0
12/20 13:40	96.8	↓-2.1
12/20 13:50	94.6	↓-2.2
12/20 14:00	92.4	↓-2.2
12/20 14:10	90.2	↓-2.2
12/20 14:20	87.9	↓-2.3
12/20 14:30	85.5	↓-2.4	最大潮位差
12/20 14:40	83.2	↓-2.3
12/20 14:50	80.9	↓-2.3
12/20 15:00	78.5	↓-2.4	最大潮位差
12/20 15:10	76.2	↓-2.3
12/20 15:20	73.9	↓-2.3
12/20 15:30	71.7	↓-2.2
12/20 15:40	69.5	↓-2.2
12/20 15:50	67.4	↓-2.1
12/20 16:00	65.4	↓-2.0
12/20 16:10	63.6	↓-1.8
12/20 16:20	61.8	↓-1.8
12/20 16:30	60.2	↓-1.6
12/20 16:40	58.7	↓-1.5
12/20 16:50	57.3	↓-1.4
12/20 17:00	56.2	↓-1.1
12/20 17:10	55.2	↓-1.0
12/20 17:20	54.3	↓-0.9
12/20 17:30	53.7	↓-0.6
12/20 17:40	53.2	↓-0.5
12/20 17:50	52.9	↓-0.3
12/20 18:00	52.8	↓-0.1	干潮
12/20 18:10	52.9	↑0.1
12/20 18:20	53.1	↑0.2
12/20 18:30	53.6	↑0.5
12/20 18:40	54.1	↑0.5
12/20 18:50	54.9	↑0.8
12/20 19:00	55.7	↑0.8
12/20 19:10	56.7	↑1.0
12/20 19:20	57.9	↑1.2
12/20 19:30	59.1	↑1.2
12/20 19:40	60.5	↑1.4
12/20 19:50	61.9	↑1.4
12/20 20:00	63.4	↑1.5
12/20 20:10	65.0	↑1.6
12/20 20:20	66.6	↑1.6
12/20 20:30	68.3	↑1.7
12/20 20:40	70.1	↑1.8
12/20 20:50	71.8	↑1.7
12/20 21:00	73.5	↑1.7
12/20 21:10	75.3	↑1.8
12/20 21:20	77.0	↑1.7
12/20 21:30	78.6	↑1.6
12/20 21:40	80.3	↑1.7
12/20 21:50	81.8	↑1.5
12/20 22:00	83.3	↑1.5
12/20 22:10	84.7	↑1.4
12/20 22:20	86.1	↑1.4
12/20 22:30	87.3	↑1.2
12/20 22:40	88.4	↑1.1
12/20 22:50	89.4	↑1.0
12/20 23:00	90.3	↑0.9
12/20 23:10	91.0	↑0.7
12/20 23:20	91.6	↑0.6
12/20 23:30	92.1	↑0.5
12/20 23:40	92.5	↑0.4
12/20 23:50	92.7	↑0.2