20 (日)	07:00	02:08	23:52	15:02
	125cm	112cm	123cm	38cm
小潮 出 05:04 入 18:18 出 00:16 入 09:45

館山（千葉）2025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	117.3	↓-0.7
4/20 00:10	116.6	↓-0.7
4/20 00:20	115.8	↓-0.8
4/20 00:30	115.2	↓-0.6
4/20 00:40	114.5	↓-0.7
4/20 00:50	113.9	↓-0.6
4/20 01:00	113.3	↓-0.6
4/20 01:10	112.8	↓-0.5
4/20 01:20	112.4	↓-0.4
4/20 01:30	112.0	↓-0.4
4/20 01:40	111.8	↓-0.2
4/20 01:50	111.6	↓-0.2
4/20 02:00	111.5	↓-0.1	干潮
4/20 02:10	111.5	0
4/20 02:20	111.5	0
4/20 02:30	111.7	↑0.2
4/20 02:40	111.9	↑0.2
4/20 02:50	112.2	↑0.3
4/20 03:00	112.5	↑0.3
4/20 03:10	113.0	↑0.5
4/20 03:20	113.4	↑0.4
4/20 03:30	113.9	↑0.5
4/20 03:40	114.5	↑0.6
4/20 03:50	115.0	↑0.5
4/20 04:00	115.6	↑0.6
4/20 04:10	116.2	↑0.6
4/20 04:20	116.9	↑0.7
4/20 04:30	117.5	↑0.6
4/20 04:40	118.1	↑0.6
4/20 04:50	118.8	↑0.7
4/20 05:00	119.4	↑0.6
4/20 05:10	120.0	↑0.6
4/20 05:20	120.7	↑0.7
4/20 05:30	121.3	↑0.6
4/20 05:40	121.8	↑0.5
4/20 05:50	122.4	↑0.6
4/20 06:00	122.9	↑0.5
4/20 06:10	123.3	↑0.4
4/20 06:20	123.7	↑0.4
4/20 06:30	124.1	↑0.4
4/20 06:40	124.3	↑0.2
4/20 06:50	124.5	↑0.2	満潮
4/20 07:00	124.5	0	満潮
4/20 07:10	124.4	↓-0.1
4/20 07:20	124.2	↓-0.2
4/20 07:30	123.9	↓-0.3
4/20 07:40	123.4	↓-0.5
4/20 07:50	122.8	↓-0.6
4/20 08:00	122.0	↓-0.8
4/20 08:10	121.1	↓-0.9
4/20 08:20	119.9	↓-1.2
4/20 08:30	118.7	↓-1.2
4/20 08:40	117.2	↓-1.5
4/20 08:50	115.6	↓-1.6
4/20 09:00	113.9	↓-1.7
4/20 09:10	112.0	↓-1.9
4/20 09:20	109.9	↓-2.1
4/20 09:30	107.8	↓-2.1
4/20 09:40	105.5	↓-2.3
4/20 09:50	103.1	↓-2.4
4/20 10:00	100.6	↓-2.5
4/20 10:10	98.1	↓-2.5
4/20 10:20	95.4	↓-2.7
4/20 10:30	92.7	↓-2.7
4/20 10:40	90.0	↓-2.7
4/20 10:50	87.1	↓-2.9	最大潮位差
4/20 11:00	84.3	↓-2.8
4/20 11:10	81.4	↓-2.9	最大潮位差
4/20 11:20	78.6	↓-2.8
4/20 11:30	75.7	↓-2.9	最大潮位差
4/20 11:40	72.8	↓-2.9	最大潮位差
4/20 11:50	70.0	↓-2.8
4/20 12:00	67.2	↓-2.8
4/20 12:10	64.4	↓-2.8
4/20 12:20	61.7	↓-2.7
4/20 12:30	59.1	↓-2.6
4/20 12:40	56.6	↓-2.5
4/20 12:50	54.2	↓-2.4
4/20 13:00	51.9	↓-2.3
4/20 13:10	49.8	↓-2.1
4/20 13:20	47.8	↓-2.0
4/20 13:30	45.9	↓-1.9
4/20 13:40	44.3	↓-1.6
4/20 13:50	42.8	↓-1.5
4/20 14:00	41.5	↓-1.3
4/20 14:10	40.4	↓-1.1
4/20 14:20	39.5	↓-0.9
4/20 14:30	38.8	↓-0.7
4/20 14:40	38.3	↓-0.5
4/20 14:50	38.0	↓-0.3
4/20 15:00	37.9	↓-0.1	干潮
4/20 15:10	38.0	↑0.1
4/20 15:20	38.2	↑0.2
4/20 15:30	38.7	↑0.5
4/20 15:40	39.3	↑0.6
4/20 15:50	40.1	↑0.8
4/20 16:00	41.0	↑0.9
4/20 16:10	42.1	↑1.1
4/20 16:20	43.4	↑1.3
4/20 16:30	44.8	↑1.4
4/20 16:40	46.3	↑1.5
4/20 16:50	47.9	↑1.6
4/20 17:00	49.7	↑1.8
4/20 17:10	51.6	↑1.9
4/20 17:20	53.7	↑2.1
4/20 17:30	55.8	↑2.1
4/20 17:40	58.1	↑2.3
4/20 17:50	60.4	↑2.3
4/20 18:00	62.8	↑2.4
4/20 18:10	65.4	↑2.6
4/20 18:20	67.9	↑2.5
4/20 18:30	70.6	↑2.7
4/20 18:40	73.3	↑2.7
4/20 18:50	76.0	↑2.7
4/20 19:00	78.8	↑2.8
4/20 19:10	81.5	↑2.7
4/20 19:20	84.2	↑2.7
4/20 19:30	86.9	↑2.7
4/20 19:40	89.5	↑2.6
4/20 19:50	92.1	↑2.6
4/20 20:00	94.6	↑2.5
4/20 20:10	97.1	↑2.5
4/20 20:20	99.4	↑2.3
4/20 20:30	101.6	↑2.2
4/20 20:40	103.7	↑2.1
4/20 20:50	105.7	↑2.0
4/20 21:00	107.6	↑1.9
4/20 21:10	109.3	↑1.7
4/20 21:20	111.0	↑1.7
4/20 21:30	112.5	↑1.5
4/20 21:40	113.9	↑1.4
4/20 21:50	115.1	↑1.2
4/20 22:00	116.3	↑1.2
4/20 22:10	117.3	↑1.0
4/20 22:20	118.3	↑1.0
4/20 22:30	119.1	↑0.8
4/20 22:40	119.8	↑0.7
4/20 22:50	120.4	↑0.6
4/20 23:00	121.0	↑0.6
4/20 23:10	121.4	↑0.4
4/20 23:20	121.7	↑0.3
4/20 23:30	121.9	↑0.2
4/20 23:40	122.1	↑0.2
4/20 23:50	122.1	0	満潮