20 (水)	06:53	01:24	21:00	13:50
	140cm	90cm	134cm	28cm
中潮 出 05:04 入 18:18 出 23:10 入 08:51 潮干狩り ○ 12:26～15:16

館山（千葉）2033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	96.9	↓-1.8
4/20 00:10	95.3	↓-1.6
4/20 00:20	93.8	↓-1.5
4/20 00:30	92.5	↓-1.3
4/20 00:40	91.5	↓-1.0
4/20 00:50	90.6	↓-0.9
4/20 01:00	90.0	↓-0.6
4/20 01:10	89.6	↓-0.4
4/20 01:20	89.4	↓-0.2	干潮
4/20 01:30	89.5	↑0.1
4/20 01:40	89.8	↑0.3
4/20 01:50	90.3	↑0.5
4/20 02:00	91.0	↑0.7
4/20 02:10	91.9	↑0.9
4/20 02:20	92.9	↑1.0
4/20 02:30	94.2	↑1.3
4/20 02:40	95.6	↑1.4
4/20 02:50	97.2	↑1.6
4/20 03:00	99.0	↑1.8
4/20 03:10	100.8	↑1.8
4/20 03:20	102.8	↑2.0
4/20 03:30	104.8	↑2.0
4/20 03:40	106.9	↑2.1
4/20 03:50	109.1	↑2.2
4/20 04:00	111.4	↑2.3
4/20 04:10	113.7	↑2.3
4/20 04:20	116.0	↑2.3
4/20 04:30	118.3	↑2.3
4/20 04:40	120.5	↑2.2
4/20 04:50	122.8	↑2.3
4/20 05:00	124.9	↑2.1
4/20 05:10	127.0	↑2.1
4/20 05:20	129.0	↑2.0
4/20 05:30	130.9	↑1.9
4/20 05:40	132.6	↑1.7
4/20 05:50	134.2	↑1.6
4/20 06:00	135.6	↑1.4
4/20 06:10	136.8	↑1.2
4/20 06:20	137.7	↑0.9
4/20 06:30	138.4	↑0.7
4/20 06:40	138.9	↑0.5
4/20 06:50	139.1	↑0.2	満潮
4/20 07:00	139.0	↓-0.1
4/20 07:10	138.7	↓-0.3
4/20 07:20	138.0	↓-0.7
4/20 07:30	137.1	↓-0.9
4/20 07:40	135.8	↓-1.3
4/20 07:50	134.3	↓-1.5
4/20 08:00	132.5	↓-1.8
4/20 08:10	130.4	↓-2.1
4/20 08:20	128.0	↓-2.4
4/20 08:30	125.4	↓-2.6
4/20 08:40	122.6	↓-2.8
4/20 08:50	119.5	↓-3.1
4/20 09:00	116.3	↓-3.2
4/20 09:10	112.8	↓-3.5
4/20 09:20	109.2	↓-3.6
4/20 09:30	105.4	↓-3.8
4/20 09:40	101.5	↓-3.9
4/20 09:50	97.5	↓-4.0
4/20 10:00	93.4	↓-4.1
4/20 10:10	89.3	↓-4.1
4/20 10:20	85.0	↓-4.3	最大潮位差
4/20 10:30	80.8	↓-4.2
4/20 10:40	76.6	↓-4.2
4/20 10:50	72.4	↓-4.2
4/20 11:00	68.3	↓-4.1
4/20 11:10	64.2	↓-4.1
4/20 11:20	60.2	↓-4.0
4/20 11:30	56.4	↓-3.8
4/20 11:40	52.7	↓-3.7
4/20 11:50	49.2	↓-3.5
4/20 12:00	45.9	↓-3.3
4/20 12:10	42.8	↓-3.1
4/20 12:20	39.9	↓-2.9
4/20 12:30	37.3	↓-2.6
4/20 12:40	35.0	↓-2.3
4/20 12:50	33.0	↓-2.0
4/20 13:00	31.3	↓-1.7
4/20 13:10	29.8	↓-1.5
4/20 13:20	28.8	↓-1.0
4/20 13:30	28.0	↓-0.8
4/20 13:40	27.5	↓-0.5	干潮
4/20 13:50	27.4	↓-0.1	干潮
4/20 14:00	27.6	↑0.2
4/20 14:10	28.1	↑0.5
4/20 14:20	28.9	↑0.8
4/20 14:30	30.0	↑1.1
4/20 14:40	31.4	↑1.4
4/20 14:50	33.1	↑1.7
4/20 15:00	35.0	↑1.9
4/20 15:10	37.2	↑2.2
4/20 15:20	39.6	↑2.4
4/20 15:30	42.2	↑2.6
4/20 15:40	45.0	↑2.8
4/20 15:50	48.0	↑3.0
4/20 16:00	51.2	↑3.2
4/20 16:10	54.5	↑3.3
4/20 16:20	58.0	↑3.5
4/20 16:30	61.5	↑3.5
4/20 16:40	65.2	↑3.7
4/20 16:50	69.0	↑3.8
4/20 17:00	72.9	↑3.9
4/20 17:10	76.8	↑3.9
4/20 17:20	80.7	↑3.9
4/20 17:30	84.6	↑3.9
4/20 17:40	88.6	↑4.0
4/20 17:50	92.4	↑3.8
4/20 18:00	96.2	↑3.8
4/20 18:10	100.0	↑3.8
4/20 18:20	103.6	↑3.6
4/20 18:30	107.1	↑3.5
4/20 18:40	110.4	↑3.3
4/20 18:50	113.5	↑3.1
4/20 19:00	116.5	↑3.0
4/20 19:10	119.2	↑2.7
4/20 19:20	121.7	↑2.5
4/20 19:30	124.0	↑2.3
4/20 19:40	126.1	↑2.1
4/20 19:50	127.9	↑1.8
4/20 20:00	129.4	↑1.5
4/20 20:10	130.7	↑1.3
4/20 20:20	131.8	↑1.1
4/20 20:30	132.6	↑0.8
4/20 20:40	133.1	↑0.5
4/20 20:50	133.4	↑0.3	満潮
4/20 21:00	133.5	↑0.1	満潮
4/20 21:10	133.4	↓-0.1
4/20 21:20	133.1	↓-0.3
4/20 21:30	132.6	↓-0.5
4/20 21:40	131.9	↓-0.7
4/20 21:50	131.0	↓-0.9
4/20 22:00	129.9	↓-1.1
4/20 22:10	128.7	↓-1.2
4/20 22:20	127.4	↓-1.3
4/20 22:30	126.0	↓-1.4
4/20 22:40	124.4	↓-1.6
4/20 22:50	122.8	↓-1.6
4/20 23:00	121.1	↓-1.7
4/20 23:10	119.3	↓-1.8
4/20 23:20	117.5	↓-1.8
4/20 23:30	115.7	↓-1.8
4/20 23:40	113.8	↓-1.9
4/20 23:50	112.0	↓-1.8