20 (火)	04:57	11:16	17:40	23:32
	133cm	16cm	137cm	44cm
大潮 出 05:04 入 18:18 出 19:17 入 05:43 潮干狩り ◎ 09:37～12:54

白浜（千葉）2038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	42.9	↑1.9
4/20 00:10	45.2	↑2.3
4/20 00:20	47.8	↑2.6
4/20 00:30	50.6	↑2.8
4/20 00:40	53.8	↑3.2
4/20 00:50	57.1	↑3.3
4/20 01:00	60.7	↑3.6
4/20 01:10	64.5	↑3.8
4/20 01:20	68.4	↑3.9
4/20 01:30	72.4	↑4.0
4/20 01:40	76.6	↑4.2
4/20 01:50	80.8	↑4.2
4/20 02:00	85.0	↑4.2
4/20 02:10	89.3	↑4.3
4/20 02:20	93.5	↑4.2
4/20 02:30	97.6	↑4.1
4/20 02:40	101.7	↑4.1
4/20 02:50	105.6	↑3.9
4/20 03:00	109.3	↑3.7
4/20 03:10	112.9	↑3.6
4/20 03:20	116.3	↑3.4
4/20 03:30	119.4	↑3.1
4/20 03:40	122.2	↑2.8
4/20 03:50	124.8	↑2.6
4/20 04:00	127.0	↑2.2
4/20 04:10	128.9	↑1.9
4/20 04:20	130.4	↑1.5
4/20 04:30	131.6	↑1.2
4/20 04:40	132.5	↑0.9
4/20 04:50	132.9	↑0.4	満潮
4/20 05:00	133.0	↑0.1
4/20 05:10	132.6	↓-0.4
4/20 05:20	131.9	↓-0.7
4/20 05:30	130.8	↓-1.1
4/20 05:40	129.3	↓-1.5
4/20 05:50	127.4	↓-1.9
4/20 06:00	125.2	↓-2.2
4/20 06:10	122.6	↓-2.6
4/20 06:20	119.7	↓-2.9
4/20 06:30	116.5	↓-3.2
4/20 06:40	112.9	↓-3.6
4/20 06:50	109.2	↓-3.7
4/20 07:00	105.1	↓-4.1
4/20 07:10	100.9	↓-4.2
4/20 07:20	96.4	↓-4.5
4/20 07:30	91.9	↓-4.5
4/20 07:40	87.1	↓-4.8
4/20 07:50	82.3	↓-4.8
4/20 08:00	77.5	↓-4.8
4/20 08:10	72.6	↓-4.9
4/20 08:20	67.7	↓-4.9
4/20 08:30	62.8	↓-4.9
4/20 08:40	58.1	↓-4.7
4/20 08:50	53.4	↓-4.7
4/20 09:00	48.9	↓-4.5
4/20 09:10	44.5	↓-4.4
4/20 09:20	40.4	↓-4.1
4/20 09:30	36.5	↓-3.9
4/20 09:40	32.8	↓-3.7
4/20 09:50	29.5	↓-3.3
4/20 10:00	26.4	↓-3.1
4/20 10:10	23.7	↓-2.7
4/20 10:20	21.3	↓-2.4
4/20 10:30	19.3	↓-2.0
4/20 10:40	17.7	↓-1.6
4/20 10:50	16.5	↓-1.2
4/20 11:00	15.6	↓-0.9
4/20 11:10	15.2	↓-0.4	干潮
4/20 11:20	15.2	0
4/20 11:30	15.6	↑0.4
4/20 11:40	16.4	↑0.8
4/20 11:50	17.7	↑1.3
4/20 12:00	19.3	↑1.6
4/20 12:10	21.3	↑2.0
4/20 12:20	23.7	↑2.4
4/20 12:30	26.4	↑2.7
4/20 12:40	29.5	↑3.1
4/20 12:50	32.8	↑3.3
4/20 13:00	36.5	↑3.7
4/20 13:10	40.5	↑4.0
4/20 13:20	44.6	↑4.1
4/20 13:30	49.0	↑4.4
4/20 13:40	53.6	↑4.6
4/20 13:50	58.3	↑4.7
4/20 14:00	63.2	↑4.9
4/20 14:10	68.1	↑4.9
4/20 14:20	73.1	↑5.0	最大潮位差
4/20 14:30	78.0	↑4.9
4/20 14:40	83.0	↑5.0	最大潮位差
4/20 14:50	87.9	↑4.9
4/20 15:00	92.8	↑4.9
4/20 15:10	97.5	↑4.7
4/20 15:20	102.1	↑4.6
4/20 15:30	106.4	↑4.3
4/20 15:40	110.6	↑4.2
4/20 15:50	114.6	↑4.0
4/20 16:00	118.2	↑3.6
4/20 16:10	121.6	↑3.4
4/20 16:20	124.7	↑3.1
4/20 16:30	127.5	↑2.8
4/20 16:40	129.9	↑2.4
4/20 16:50	131.9	↑2.0
4/20 17:00	133.6	↑1.7
4/20 17:10	134.9	↑1.3
4/20 17:20	135.9	↑1.0
4/20 17:30	136.4	↑0.5	満潮
4/20 17:40	136.5	↑0.1	満潮
4/20 17:50	136.3	↓-0.2
4/20 18:00	135.7	↓-0.6
4/20 18:10	134.7	↓-1.0
4/20 18:20	133.3	↓-1.4
4/20 18:30	131.6	↓-1.7
4/20 18:40	129.5	↓-2.1
4/20 18:50	127.2	↓-2.3
4/20 19:00	124.5	↓-2.7
4/20 19:10	121.6	↓-2.9
4/20 19:20	118.4	↓-3.2
4/20 19:30	115.0	↓-3.4
4/20 19:40	111.4	↓-3.6
4/20 19:50	107.6	↓-3.8
4/20 20:00	103.7	↓-3.9
4/20 20:10	99.7	↓-4.0
4/20 20:20	95.6	↓-4.1
4/20 20:30	91.5	↓-4.1
4/20 20:40	87.3	↓-4.2
4/20 20:50	83.2	↓-4.1
4/20 21:00	79.2	↓-4.0
4/20 21:10	75.2	↓-4.0
4/20 21:20	71.4	↓-3.8
4/20 21:30	67.7	↓-3.7
4/20 21:40	64.2	↓-3.5
4/20 21:50	60.9	↓-3.3
4/20 22:00	57.8	↓-3.1
4/20 22:10	54.9	↓-2.9
4/20 22:20	52.4	↓-2.5
4/20 22:30	50.1	↓-2.3
4/20 22:40	48.2	↓-1.9
4/20 22:50	46.6	↓-1.6
4/20 23:00	45.3	↓-1.3
4/20 23:10	44.4	↓-0.9
4/20 23:20	43.8	↓-0.6
4/20 23:30	43.6	↓-0.2	干潮
4/20 23:40	43.8	↑0.2
4/20 23:50	44.3	↑0.5