20 (金)	06:58	01:38	21:57	14:24
	132cm	103cm	126cm	32cm
小潮 出 05:04 入 18:18 出 09:19 入 23:58 潮干狩り ○ 13:11～15:39

館山（千葉）2029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	108.8	↓-1.3
4/20 00:10	107.5	↓-1.3
4/20 00:20	106.4	↓-1.1
4/20 00:30	105.4	↓-1.0
4/20 00:40	104.5	↓-0.9
4/20 00:50	103.7	↓-0.8
4/20 01:00	103.1	↓-0.6
4/20 01:10	102.6	↓-0.5
4/20 01:20	102.3	↓-0.3
4/20 01:30	102.1	↓-0.2	干潮
4/20 01:40	102.1	0
4/20 01:50	102.2	↑0.1
4/20 02:00	102.5	↑0.3
4/20 02:10	102.9	↑0.4
4/20 02:20	103.4	↑0.5
4/20 02:30	104.1	↑0.7
4/20 02:40	104.9	↑0.8
4/20 02:50	105.7	↑0.8
4/20 03:00	106.7	↑1.0
4/20 03:10	107.8	↑1.1
4/20 03:20	108.9	↑1.1
4/20 03:30	110.1	↑1.2
4/20 03:40	111.3	↑1.2
4/20 03:50	112.6	↑1.3
4/20 04:00	113.9	↑1.3
4/20 04:10	115.2	↑1.3
4/20 04:20	116.6	↑1.4
4/20 04:30	118.0	↑1.4
4/20 04:40	119.3	↑1.3
4/20 04:50	120.7	↑1.4
4/20 05:00	122.0	↑1.3
4/20 05:10	123.3	↑1.3
4/20 05:20	124.5	↑1.2
4/20 05:30	125.7	↑1.2
4/20 05:40	126.8	↑1.1
4/20 05:50	127.8	↑1.0
4/20 06:00	128.8	↑1.0
4/20 06:10	129.6	↑0.8
4/20 06:20	130.3	↑0.7
4/20 06:30	130.8	↑0.5
4/20 06:40	131.2	↑0.4
4/20 06:50	131.4	↑0.2	満潮
4/20 07:00	131.4	0
4/20 07:10	131.3	↓-0.1
4/20 07:20	130.9	↓-0.4
4/20 07:30	130.3	↓-0.6
4/20 07:40	129.5	↓-0.8
4/20 07:50	128.5	↓-1.0
4/20 08:00	127.3	↓-1.2
4/20 08:10	125.9	↓-1.4
4/20 08:20	124.2	↓-1.7
4/20 08:30	122.4	↓-1.8
4/20 08:40	120.3	↓-2.1
4/20 08:50	118.1	↓-2.2
4/20 09:00	115.7	↓-2.4
4/20 09:10	113.1	↓-2.6
4/20 09:20	110.3	↓-2.8
4/20 09:30	107.5	↓-2.8
4/20 09:40	104.5	↓-3.0
4/20 09:50	101.3	↓-3.2
4/20 10:00	98.1	↓-3.2
4/20 10:10	94.8	↓-3.3
4/20 10:20	91.4	↓-3.4
4/20 10:30	87.9	↓-3.5
4/20 10:40	84.4	↓-3.5
4/20 10:50	80.9	↓-3.5
4/20 11:00	77.3	↓-3.6	最大潮位差
4/20 11:10	73.8	↓-3.5
4/20 11:20	70.3	↓-3.5
4/20 11:30	66.8	↓-3.5
4/20 11:40	63.4	↓-3.4
4/20 11:50	60.1	↓-3.3
4/20 12:00	56.8	↓-3.3
4/20 12:10	53.7	↓-3.1
4/20 12:20	50.8	↓-2.9
4/20 12:30	47.9	↓-2.9
4/20 12:40	45.3	↓-2.6
4/20 12:50	42.9	↓-2.4
4/20 13:00	40.6	↓-2.3
4/20 13:10	38.6	↓-2.0
4/20 13:20	36.8	↓-1.8
4/20 13:30	35.3	↓-1.5
4/20 13:40	34.0	↓-1.3
4/20 13:50	33.0	↓-1.0
4/20 14:00	32.3	↓-0.7
4/20 14:10	31.8	↓-0.5
4/20 14:20	31.6	↓-0.2	干潮
4/20 14:30	31.6	0
4/20 14:40	31.9	↑0.3
4/20 14:50	32.5	↑0.6
4/20 15:00	33.3	↑0.8
4/20 15:10	34.3	↑1.0
4/20 15:20	35.6	↑1.3
4/20 15:30	37.1	↑1.5
4/20 15:40	38.8	↑1.7
4/20 15:50	40.7	↑1.9
4/20 16:00	42.8	↑2.1
4/20 16:10	45.0	↑2.2
4/20 16:20	47.4	↑2.4
4/20 16:30	50.0	↑2.6
4/20 16:40	52.8	↑2.8
4/20 16:50	55.6	↑2.8
4/20 17:00	58.6	↑3.0
4/20 17:10	61.7	↑3.1
4/20 17:20	64.9	↑3.2
4/20 17:30	68.2	↑3.3
4/20 17:40	71.5	↑3.3
4/20 17:50	74.9	↑3.4
4/20 18:00	78.3	↑3.4
4/20 18:10	81.7	↑3.4
4/20 18:20	85.1	↑3.4
4/20 18:30	88.4	↑3.3
4/20 18:40	91.7	↑3.3
4/20 18:50	95.0	↑3.3
4/20 19:00	98.1	↑3.1
4/20 19:10	101.1	↑3.0
4/20 19:20	104.0	↑2.9
4/20 19:30	106.7	↑2.7
4/20 19:40	109.3	↑2.6
4/20 19:50	111.7	↑2.4
4/20 20:00	113.9	↑2.2
4/20 20:10	115.9	↑2.0
4/20 20:20	117.7	↑1.8
4/20 20:30	119.3	↑1.6
4/20 20:40	120.8	↑1.5
4/20 20:50	122.0	↑1.2
4/20 21:00	123.0	↑1.0
4/20 21:10	123.9	↑0.9
4/20 21:20	124.5	↑0.6
4/20 21:30	125.0	↑0.5
4/20 21:40	125.3	↑0.3
4/20 21:50	125.5	↑0.2	満潮
4/20 22:00	125.5	0
4/20 22:10	125.4	↓-0.1
4/20 22:20	125.1	↓-0.3
4/20 22:30	124.8	↓-0.3
4/20 22:40	124.3	↓-0.5
4/20 22:50	123.7	↓-0.6
4/20 23:00	123.0	↓-0.7
4/20 23:10	122.2	↓-0.8
4/20 23:20	121.3	↓-0.9
4/20 23:30	120.4	↓-0.9
4/20 23:40	119.4	↓-1.0
4/20 23:50	118.4	↓-1.0