20 (木)	04:56	10:06	16:12	22:28
	183cm	71cm	186cm	-6cm
大潮 出 06:21 入 17:26 出 04:55 入 15:58

寒川（千葉）2031年02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
2/20 00:00	48.3	↑5.7
2/20 00:10	54.2	↑5.9
2/20 00:20	60.3	↑6.1
2/20 00:30	66.4	↑6.1
2/20 00:40	72.6	↑6.2
2/20 00:50	78.9	↑6.3
2/20 01:00	85.1	↑6.2
2/20 01:10	91.4	↑6.3
2/20 01:20	97.6	↑6.2
2/20 01:30	103.7	↑6.1
2/20 01:40	109.8	↑6.1
2/20 01:50	115.8	↑6.0
2/20 02:00	121.6	↑5.8
2/20 02:10	127.3	↑5.7
2/20 02:20	132.9	↑5.6
2/20 02:30	138.3	↑5.4
2/20 02:40	143.4	↑5.1
2/20 02:50	148.4	↑5.0
2/20 03:00	153.2	↑4.8
2/20 03:10	157.6	↑4.4
2/20 03:20	161.8	↑4.2
2/20 03:30	165.7	↑3.9
2/20 03:40	169.2	↑3.5
2/20 03:50	172.4	↑3.2
2/20 04:00	175.2	↑2.8
2/20 04:10	177.6	↑2.4
2/20 04:20	179.5	↑1.9
2/20 04:30	181.0	↑1.5
2/20 04:40	182.0	↑1.0
2/20 04:50	182.5	↑0.5	満潮
2/20 05:00	182.5	0
2/20 05:10	182.0	↓-0.5
2/20 05:20	180.9	↓-1.1
2/20 05:30	179.3	↓-1.6
2/20 05:40	177.2	↓-2.1
2/20 05:50	174.6	↓-2.6
2/20 06:00	171.5	↓-3.1
2/20 06:10	168.0	↓-3.5
2/20 06:20	164.0	↓-4.0
2/20 06:30	159.5	↓-4.5
2/20 06:40	154.8	↓-4.7
2/20 06:50	149.7	↓-5.1
2/20 07:00	144.4	↓-5.3
2/20 07:10	138.8	↓-5.6
2/20 07:20	133.2	↓-5.6
2/20 07:30	127.4	↓-5.8
2/20 07:40	121.6	↓-5.8
2/20 07:50	115.9	↓-5.7
2/20 08:00	110.3	↓-5.6
2/20 08:10	104.9	↓-5.4
2/20 08:20	99.7	↓-5.2
2/20 08:30	94.8	↓-4.9
2/20 08:40	90.2	↓-4.6
2/20 08:50	86.1	↓-4.1
2/20 09:00	82.4	↓-3.7
2/20 09:10	79.1	↓-3.3
2/20 09:20	76.4	↓-2.7
2/20 09:30	74.2	↓-2.2
2/20 09:40	72.5	↓-1.7
2/20 09:50	71.5	↓-1.0
2/20 10:00	70.9	↓-0.6	干潮
2/20 10:10	70.9	0
2/20 10:20	71.5	↑0.6
2/20 10:30	72.6	↑1.1
2/20 10:40	74.2	↑1.6
2/20 10:50	76.2	↑2.0
2/20 11:00	78.7	↑2.5
2/20 11:10	81.7	↑3.0
2/20 11:20	84.9	↑3.2
2/20 11:30	88.5	↑3.6
2/20 11:40	92.4	↑3.9
2/20 11:50	96.5	↑4.1
2/20 12:00	100.9	↑4.4
2/20 12:10	105.4	↑4.5
2/20 12:20	110.0	↑4.6
2/20 12:30	114.7	↑4.7
2/20 12:40	119.4	↑4.7
2/20 12:50	124.2	↑4.8
2/20 13:00	128.9	↑4.7
2/20 13:10	133.6	↑4.7
2/20 13:20	138.2	↑4.6
2/20 13:30	142.7	↑4.5
2/20 13:40	147.1	↑4.4
2/20 13:50	151.4	↑4.3
2/20 14:00	155.4	↑4.0
2/20 14:10	159.3	↑3.9
2/20 14:20	163.1	↑3.8
2/20 14:30	166.6	↑3.5
2/20 14:40	169.8	↑3.2
2/20 14:50	172.8	↑3.0
2/20 15:00	175.6	↑2.8
2/20 15:10	178.0	↑2.4
2/20 15:20	180.2	↑2.2
2/20 15:30	182.0	↑1.8
2/20 15:40	183.4	↑1.4
2/20 15:50	184.5	↑1.1
2/20 16:00	185.2	↑0.7
2/20 16:10	185.5	↑0.3	満潮
2/20 16:20	185.3	↓-0.2
2/20 16:30	184.6	↓-0.7
2/20 16:40	183.5	↓-1.1
2/20 16:50	181.8	↓-1.7
2/20 17:00	179.7	↓-2.1
2/20 17:10	177.0	↓-2.7
2/20 17:20	173.7	↓-3.3
2/20 17:30	169.9	↓-3.8
2/20 17:40	165.6	↓-4.3
2/20 17:50	160.7	↓-4.9
2/20 18:00	155.4	↓-5.3
2/20 18:10	149.5	↓-5.9
2/20 18:20	143.1	↓-6.4
2/20 18:30	136.4	↓-6.7
2/20 18:40	129.2	↓-7.2
2/20 18:50	121.6	↓-7.6
2/20 19:00	113.8	↓-7.8
2/20 19:10	105.7	↓-8.1
2/20 19:20	97.5	↓-8.2
2/20 19:30	89.1	↓-8.4	最大潮位差
2/20 19:40	80.7	↓-8.4	最大潮位差
2/20 19:50	72.3	↓-8.4	最大潮位差
2/20 20:00	64.0	↓-8.3
2/20 20:10	55.9	↓-8.1
2/20 20:20	48.0	↓-7.9
2/20 20:30	40.5	↓-7.5
2/20 20:40	33.3	↓-7.2
2/20 20:50	26.6	↓-6.7
2/20 21:00	20.3	↓-6.3
2/20 21:10	14.7	↓-5.6
2/20 21:20	9.6	↓-5.1
2/20 21:30	5.2	↓-4.4
2/20 21:40	1.5	↓-3.7
2/20 21:50	-1.6	↓-3.1
2/20 22:00	-3.9	↓-2.3
2/20 22:10	-5.5	↓-1.6
2/20 22:20	-6.4	↓-0.9	干潮
2/20 22:30	-6.5	↓-0.1
2/20 22:40	-5.9	↑0.6
2/20 22:50	-4.7	↑1.2
2/20 23:00	-2.7	↑2.0
2/20 23:10	-0.1	↑2.6
2/20 23:20	3.0	↑3.1
2/20 23:30	6.8	↑3.8
2/20 23:40	11.0	↑4.2
2/20 23:50	15.7	↑4.7