20 (月)	05:34	12:30	19:26	-
	161cm	-2cm	148cm	-
中潮 出 05:05 入 18:18 出 06:35 入 21:51 潮干狩り ◎ 10:15～14:49

館山（千葉）2026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	81.4	↑0.1
4/20 00:10	81.7	↑0.3
4/20 00:20	82.4	↑0.7
4/20 00:30	83.4	↑1.0
4/20 00:40	84.7	↑1.3
4/20 00:50	86.3	↑1.6
4/20 01:00	88.2	↑1.9
4/20 01:10	90.3	↑2.1
4/20 01:20	92.8	↑2.5
4/20 01:30	95.4	↑2.6
4/20 01:40	98.2	↑2.8
4/20 01:50	101.3	↑3.1
4/20 02:00	104.4	↑3.1
4/20 02:10	107.8	↑3.4
4/20 02:20	111.2	↑3.4
4/20 02:30	114.7	↑3.5
4/20 02:40	118.3	↑3.6
4/20 02:50	121.9	↑3.6
4/20 03:00	125.5	↑3.6
4/20 03:10	129.0	↑3.5
4/20 03:20	132.5	↑3.5
4/20 03:30	136.0	↑3.5
4/20 03:40	139.3	↑3.3
4/20 03:50	142.4	↑3.1
4/20 04:00	145.4	↑3.0
4/20 04:10	148.2	↑2.8
4/20 04:20	150.8	↑2.6
4/20 04:30	153.1	↑2.3
4/20 04:40	155.1	↑2.0
4/20 04:50	156.9	↑1.8
4/20 05:00	158.3	↑1.4
4/20 05:10	159.3	↑1.0
4/20 05:20	160.0	↑0.7
4/20 05:30	160.4	↑0.4	満潮
4/20 05:40	160.3	↓-0.1
4/20 05:50	159.8	↓-0.5
4/20 06:00	158.9	↓-0.9
4/20 06:10	157.6	↓-1.3
4/20 06:20	155.9	↓-1.7
4/20 06:30	153.8	↓-2.1
4/20 06:40	151.3	↓-2.5
4/20 06:50	148.3	↓-3.0
4/20 07:00	145.0	↓-3.3
4/20 07:10	141.3	↓-3.7
4/20 07:20	137.3	↓-4.0
4/20 07:30	132.9	↓-4.4
4/20 07:40	128.2	↓-4.7
4/20 07:50	123.2	↓-5.0
4/20 08:00	118.0	↓-5.2
4/20 08:10	112.5	↓-5.5
4/20 08:20	106.8	↓-5.7
4/20 08:30	101.0	↓-5.8
4/20 08:40	95.0	↓-6.0
4/20 08:50	88.9	↓-6.1
4/20 09:00	82.7	↓-6.2	最大潮位差
4/20 09:10	76.5	↓-6.2	最大潮位差
4/20 09:20	70.3	↓-6.2	最大潮位差
4/20 09:30	64.2	↓-6.1
4/20 09:40	58.1	↓-6.1
4/20 09:50	52.2	↓-5.9
4/20 10:00	46.4	↓-5.8
4/20 10:10	40.7	↓-5.7
4/20 10:20	35.3	↓-5.4
4/20 10:30	30.2	↓-5.1
4/20 10:40	25.3	↓-4.9
4/20 10:50	20.7	↓-4.6
4/20 11:00	16.5	↓-4.2
4/20 11:10	12.7	↓-3.8
4/20 11:20	9.3	↓-3.4
4/20 11:30	6.3	↓-3.0
4/20 11:40	3.7	↓-2.6
4/20 11:50	1.6	↓-2.1
4/20 12:00	-0.1	↓-1.7
4/20 12:10	-1.2	↓-1.1
4/20 12:20	-1.9	↓-0.7	干潮
4/20 12:30	-2.1	↓-0.2	干潮
4/20 12:40	-1.9	↑0.2
4/20 12:50	-1.1	↑0.8
4/20 13:00	0.1	↑1.2
4/20 13:10	1.7	↑1.6
4/20 13:20	3.8	↑2.1
4/20 13:30	6.4	↑2.6
4/20 13:40	9.3	↑2.9
4/20 13:50	12.6	↑3.3
4/20 14:00	16.3	↑3.7
4/20 14:10	20.3	↑4.0
4/20 14:20	24.6	↑4.3
4/20 14:30	29.2	↑4.6
4/20 14:40	34.1	↑4.9
4/20 14:50	39.1	↑5.0
4/20 15:00	44.4	↑5.3
4/20 15:10	49.8	↑5.4
4/20 15:20	55.4	↑5.6
4/20 15:30	61.0	↑5.6
4/20 15:40	66.7	↑5.7
4/20 15:50	72.5	↑5.8
4/20 16:00	78.2	↑5.7
4/20 16:10	83.9	↑5.7
4/20 16:20	89.5	↑5.6
4/20 16:30	95.0	↑5.5
4/20 16:40	100.3	↑5.3
4/20 16:50	105.5	↑5.2
4/20 17:00	110.5	↑5.0
4/20 17:10	115.3	↑4.8
4/20 17:20	119.8	↑4.5
4/20 17:30	124.0	↑4.2
4/20 17:40	127.9	↑3.9
4/20 17:50	131.5	↑3.6
4/20 18:00	134.8	↑3.3
4/20 18:10	137.7	↑2.9
4/20 18:20	140.3	↑2.6
4/20 18:30	142.4	↑2.1
4/20 18:40	144.3	↑1.9
4/20 18:50	145.7	↑1.4
4/20 19:00	146.8	↑1.1
4/20 19:10	147.5	↑0.7
4/20 19:20	147.9	↑0.4	満潮
4/20 19:30	147.9	0
4/20 19:40	147.5	↓-0.4
4/20 19:50	146.9	↓-0.6
4/20 20:00	146.0	↓-0.9
4/20 20:10	144.8	↓-1.2
4/20 20:20	143.3	↓-1.5
4/20 20:30	141.6	↓-1.7
4/20 20:40	139.7	↓-1.9
4/20 20:50	137.6	↓-2.1
4/20 21:00	135.4	↓-2.2
4/20 21:10	133.0	↓-2.4
4/20 21:20	130.5	↓-2.5
4/20 21:30	127.9	↓-2.6
4/20 21:40	125.2	↓-2.7
4/20 21:50	122.6	↓-2.6
4/20 22:00	119.9	↓-2.7
4/20 22:10	117.2	↓-2.7
4/20 22:20	114.6	↓-2.6
4/20 22:30	112.1	↓-2.5
4/20 22:40	109.7	↓-2.4
4/20 22:50	107.4	↓-2.3
4/20 23:00	105.3	↓-2.1
4/20 23:10	103.4	↓-1.9
4/20 23:20	101.6	↓-1.8
4/20 23:30	100.0	↓-1.6
4/20 23:40	98.7	↓-1.3
4/20 23:50	97.6	↓-1.1