20 (木)	05:18	11:47	18:17	-
	174cm	7cm	171cm	-
大潮 出 05:04 入 18:19 出 06:09 入 19:59 潮干狩り ◎ 09:48～13:45

第一海堡（千葉）2034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	55.7	↑1.3
4/20 00:10	57.5	↑1.8
4/20 00:20	59.7	↑2.2
4/20 00:30	62.3	↑2.6
4/20 00:40	65.3	↑3.0
4/20 00:50	68.7	↑3.4
4/20 01:00	72.4	↑3.7
4/20 01:10	76.5	↑4.1
4/20 01:20	80.8	↑4.3
4/20 01:30	85.5	↑4.7
4/20 01:40	90.3	↑4.8
4/20 01:50	95.3	↑5.0
4/20 02:00	100.5	↑5.2
4/20 02:10	105.8	↑5.3
4/20 02:20	111.1	↑5.3
4/20 02:30	116.5	↑5.4
4/20 02:40	121.8	↑5.3
4/20 02:50	127.1	↑5.3
4/20 03:00	132.3	↑5.2
4/20 03:10	137.3	↑5.0
4/20 03:20	142.1	↑4.8
4/20 03:30	146.7	↑4.6
4/20 03:40	151.1	↑4.4
4/20 03:50	155.1	↑4.0
4/20 04:00	158.8	↑3.7
4/20 04:10	162.1	↑3.3
4/20 04:20	165.1	↑3.0
4/20 04:30	167.6	↑2.5
4/20 04:40	169.7	↑2.1
4/20 04:50	171.3	↑1.6
4/20 05:00	172.4	↑1.1
4/20 05:10	173.0	↑0.6	満潮
4/20 05:20	173.1	↑0.1
4/20 05:30	172.7	↓-0.4
4/20 05:40	171.8	↓-0.9
4/20 05:50	170.4	↓-1.4
4/20 06:00	168.4	↓-2.0
4/20 06:10	166.0	↓-2.4
4/20 06:20	163.1	↓-2.9
4/20 06:30	159.7	↓-3.4
4/20 06:40	155.8	↓-3.9
4/20 06:50	151.5	↓-4.3
4/20 07:00	146.8	↓-4.7
4/20 07:10	141.8	↓-5.0
4/20 07:20	136.4	↓-5.4
4/20 07:30	130.7	↓-5.7
4/20 07:40	124.7	↓-6.0
4/20 07:50	118.5	↓-6.2
4/20 08:00	112.1	↓-6.4
4/20 08:10	105.5	↓-6.6
4/20 08:20	98.8	↓-6.7
4/20 08:30	92.1	↓-6.7
4/20 08:40	85.3	↓-6.8	最大潮位差
4/20 08:50	78.6	↓-6.7
4/20 09:00	72.0	↓-6.6
4/20 09:10	65.4	↓-6.6
4/20 09:20	59.0	↓-6.4
4/20 09:30	52.8	↓-6.2
4/20 09:40	46.9	↓-5.9
4/20 09:50	41.2	↓-5.7
4/20 10:00	35.9	↓-5.3
4/20 10:10	30.9	↓-5.0
4/20 10:20	26.3	↓-4.6
4/20 10:30	22.1	↓-4.2
4/20 10:40	18.4	↓-3.7
4/20 10:50	15.2	↓-3.2
4/20 11:00	12.4	↓-2.8
4/20 11:10	10.2	↓-2.2
4/20 11:20	8.5	↓-1.7
4/20 11:30	7.3	↓-1.2
4/20 11:40	6.7	↓-0.6	干潮
4/20 11:50	6.6	↓-0.1
4/20 12:00	7.1	↑0.5
4/20 12:10	8.1	↑1.0
4/20 12:20	9.7	↑1.6
4/20 12:30	11.8	↑2.1
4/20 12:40	14.4	↑2.6
4/20 12:50	17.5	↑3.1
4/20 13:00	21.1	↑3.6
4/20 13:10	25.2	↑4.1
4/20 13:20	29.6	↑4.4
4/20 13:30	34.5	↑4.9
4/20 13:40	39.7	↑5.2
4/20 13:50	45.2	↑5.5
4/20 14:00	51.1	↑5.9
4/20 14:10	57.1	↑6.0
4/20 14:20	63.4	↑6.3
4/20 14:30	69.8	↑6.4
4/20 14:40	76.4	↑6.6
4/20 14:50	83.0	↑6.6
4/20 15:00	89.6	↑6.6
4/20 15:10	96.3	↑6.7
4/20 15:20	102.9	↑6.6
4/20 15:30	109.3	↑6.4
4/20 15:40	115.7	↑6.4
4/20 15:50	121.8	↑6.1
4/20 16:00	127.8	↑6.0
4/20 16:10	133.4	↑5.6
4/20 16:20	138.8	↑5.4
4/20 16:30	143.8	↑5.0
4/20 16:40	148.5	↑4.7
4/20 16:50	152.8	↑4.3
4/20 17:00	156.6	↑3.8
4/20 17:10	160.1	↑3.5
4/20 17:20	163.0	↑2.9
4/20 17:30	165.5	↑2.5
4/20 17:40	167.6	↑2.1
4/20 17:50	169.1	↑1.5
4/20 18:00	170.1	↑1.0
4/20 18:10	170.6	↑0.5	満潮
4/20 18:20	170.7	↑0.1
4/20 18:30	170.2	↓-0.5
4/20 18:40	169.3	↓-0.9
4/20 18:50	167.9	↓-1.4
4/20 19:00	166.0	↓-1.9
4/20 19:10	163.7	↓-2.3
4/20 19:20	161.0	↓-2.7
4/20 19:30	157.9	↓-3.1
4/20 19:40	154.5	↓-3.4
4/20 19:50	150.8	↓-3.7
4/20 20:00	146.7	↓-4.1
4/20 20:10	142.4	↓-4.3
4/20 20:20	137.9	↓-4.5
4/20 20:30	133.2	↓-4.7
4/20 20:40	128.4	↓-4.8
4/20 20:50	123.5	↓-4.9
4/20 21:00	118.5	↓-5.0
4/20 21:10	113.5	↓-5.0
4/20 21:20	108.5	↓-5.0
4/20 21:30	103.6	↓-4.9
4/20 21:40	98.7	↓-4.9
4/20 21:50	94.1	↓-4.6
4/20 22:00	89.6	↓-4.5
4/20 22:10	85.3	↓-4.3
4/20 22:20	81.3	↓-4.0
4/20 22:30	77.5	↓-3.8
4/20 22:40	74.1	↓-3.4
4/20 22:50	71.0	↓-3.1
4/20 23:00	68.3	↓-2.7
4/20 23:10	65.9	↓-2.4
4/20 23:20	64.0	↓-1.9
4/20 23:30	62.5	↓-1.5
4/20 23:40	61.4	↓-1.1
4/20 23:50	60.8	↓-0.6