20 (金)	00:45	05:32	08:57	17:45
	131cm	121cm	125cm	49cm
長潮 出 05:03 入 18:19 出 11:19 入 01:20

第一海堡（千葉）2040年04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
4/20 00:00	129.7	↑0.5
4/20 00:10	130.1	↑0.4
4/20 00:20	130.4	↑0.3
4/20 00:30	130.6	↑0.2
4/20 00:40	130.7	↑0.1	満潮
4/20 00:50	130.7	0
4/20 01:00	130.6	↓-0.1
4/20 01:10	130.4	↓-0.2
4/20 01:20	130.2	↓-0.2
4/20 01:30	129.9	↓-0.3
4/20 01:40	129.5	↓-0.4
4/20 01:50	129.1	↓-0.4
4/20 02:00	128.6	↓-0.5
4/20 02:10	128.1	↓-0.5
4/20 02:20	127.5	↓-0.6
4/20 02:30	127.0	↓-0.5
4/20 02:40	126.4	↓-0.6
4/20 02:50	125.8	↓-0.6
4/20 03:00	125.3	↓-0.5
4/20 03:10	124.7	↓-0.6
4/20 03:20	124.1	↓-0.6
4/20 03:30	123.6	↓-0.5
4/20 03:40	123.1	↓-0.5
4/20 03:50	122.6	↓-0.5
4/20 04:00	122.2	↓-0.4
4/20 04:10	121.8	↓-0.4
4/20 04:20	121.4	↓-0.4
4/20 04:30	121.1	↓-0.3
4/20 04:40	120.8	↓-0.3
4/20 04:50	120.6	↓-0.2
4/20 05:00	120.4	↓-0.2
4/20 05:10	120.3	↓-0.1
4/20 05:20	120.2	↓-0.1
4/20 05:30	120.2	0	干潮
4/20 05:40	120.2	0
4/20 05:50	120.3	↑0.1
4/20 06:00	120.4	↑0.1
4/20 06:10	120.5	↑0.1
4/20 06:20	120.7	↑0.2
4/20 06:30	120.9	↑0.2
4/20 06:40	121.2	↑0.3
4/20 06:50	121.4	↑0.2
4/20 07:00	121.7	↑0.3
4/20 07:10	122.0	↑0.3
4/20 07:20	122.3	↑0.3
4/20 07:30	122.6	↑0.3
4/20 07:40	122.9	↑0.3
4/20 07:50	123.2	↑0.3
4/20 08:00	123.5	↑0.3
4/20 08:10	123.7	↑0.2
4/20 08:20	124.0	↑0.3
4/20 08:30	124.1	↑0.1
4/20 08:40	124.2	↑0.1
4/20 08:50	124.3	↑0.1	満潮
4/20 09:00	124.3	0
4/20 09:10	124.3	0
4/20 09:20	124.1	↓-0.2
4/20 09:30	123.9	↓-0.2
4/20 09:40	123.6	↓-0.3
4/20 09:50	123.2	↓-0.4
4/20 10:00	122.8	↓-0.4
4/20 10:10	122.2	↓-0.6
4/20 10:20	121.5	↓-0.7
4/20 10:30	120.8	↓-0.7
4/20 10:40	119.9	↓-0.9
4/20 10:50	118.9	↓-1.0
4/20 11:00	117.8	↓-1.1
4/20 11:10	116.6	↓-1.2
4/20 11:20	115.3	↓-1.3
4/20 11:30	113.9	↓-1.4
4/20 11:40	112.4	↓-1.5
4/20 11:50	110.8	↓-1.6
4/20 12:00	109.1	↓-1.7
4/20 12:10	107.3	↓-1.8
4/20 12:20	105.5	↓-1.8
4/20 12:30	103.5	↓-2.0
4/20 12:40	101.4	↓-2.1
4/20 12:50	99.3	↓-2.1
4/20 13:00	97.2	↓-2.1
4/20 13:10	94.9	↓-2.3
4/20 13:20	92.6	↓-2.3
4/20 13:30	90.3	↓-2.3
4/20 13:40	88.0	↓-2.3
4/20 13:50	85.6	↓-2.4
4/20 14:00	83.2	↓-2.4
4/20 14:10	80.8	↓-2.4
4/20 14:20	78.4	↓-2.4
4/20 14:30	76.1	↓-2.3
4/20 14:40	73.8	↓-2.3
4/20 14:50	71.5	↓-2.3
4/20 15:00	69.2	↓-2.3
4/20 15:10	67.1	↓-2.1
4/20 15:20	65.0	↓-2.1
4/20 15:30	63.0	↓-2.0
4/20 15:40	61.0	↓-2.0
4/20 15:50	59.2	↓-1.8
4/20 16:00	57.5	↓-1.7
4/20 16:10	55.9	↓-1.6
4/20 16:20	54.5	↓-1.4
4/20 16:30	53.2	↓-1.3
4/20 16:40	52.0	↓-1.2
4/20 16:50	51.0	↓-1.0
4/20 17:00	50.1	↓-0.9
4/20 17:10	49.4	↓-0.7
4/20 17:20	48.9	↓-0.5
4/20 17:30	48.6	↓-0.3
4/20 17:40	48.4	↓-0.2	干潮
4/20 17:50	48.4	0
4/20 18:00	48.6	↑0.2
4/20 18:10	49.0	↑0.4
4/20 18:20	49.5	↑0.5
4/20 18:30	50.3	↑0.8
4/20 18:40	51.2	↑0.9
4/20 18:50	52.3	↑1.1
4/20 19:00	53.5	↑1.2
4/20 19:10	55.0	↑1.5
4/20 19:20	56.5	↑1.5
4/20 19:30	58.3	↑1.8
4/20 19:40	60.2	↑1.9
4/20 19:50	62.2	↑2.0
4/20 20:00	64.4	↑2.2
4/20 20:10	66.7	↑2.3
4/20 20:20	69.1	↑2.4
4/20 20:30	71.6	↑2.5
4/20 20:40	74.2	↑2.6
4/20 20:50	76.9	↑2.7
4/20 21:00	79.7	↑2.8
4/20 21:10	82.5	↑2.8
4/20 21:20	85.4	↑2.9	最大潮位差
4/20 21:30	88.3	↑2.9	最大潮位差
4/20 21:40	91.2	↑2.9	最大潮位差
4/20 21:50	94.1	↑2.9	最大潮位差
4/20 22:00	97.0	↑2.9	最大潮位差
4/20 22:10	99.9	↑2.9	最大潮位差
4/20 22:20	102.8	↑2.9	最大潮位差
4/20 22:30	105.6	↑2.8
4/20 22:40	108.4	↑2.8
4/20 22:50	111.1	↑2.7
4/20 23:00	113.7	↑2.6
4/20 23:10	116.3	↑2.6
4/20 23:20	118.7	↑2.4
4/20 23:30	121.1	↑2.4
4/20 23:40	123.3	↑2.2
4/20 23:50	125.4	↑2.1