20 (日)	04:30	10:48	17:12	23:04
	131cm	18cm	136cm	45cm
大潮 出 05:04 入 18:18 出 05:01 入 18:33 潮干狩り ○ 09:13～12:21

白浜（千葉）2042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	50.3	↑2.6
4/20 00:10	53.3	↑3.0
4/20 00:20	56.4	↑3.1
4/20 00:30	59.8	↑3.4
4/20 00:40	63.4	↑3.6
4/20 00:50	67.1	↑3.7
4/20 01:00	71.0	↑3.9
4/20 01:10	74.9	↑3.9
4/20 01:20	79.0	↑4.1
4/20 01:30	83.0	↑4.0
4/20 01:40	87.1	↑4.1
4/20 01:50	91.2	↑4.1
4/20 02:00	95.2	↑4.0
4/20 02:10	99.1	↑3.9
4/20 02:20	102.9	↑3.8
4/20 02:30	106.6	↑3.7
4/20 02:40	110.1	↑3.5
4/20 02:50	113.4	↑3.3
4/20 03:00	116.4	↑3.0
4/20 03:10	119.2	↑2.8
4/20 03:20	121.8	↑2.6
4/20 03:30	124.0	↑2.2
4/20 03:40	125.9	↑1.9
4/20 03:50	127.5	↑1.6
4/20 04:00	128.8	↑1.3
4/20 04:10	129.7	↑0.9
4/20 04:20	130.2	↑0.5	満潮
4/20 04:30	130.3	↑0.1	満潮
4/20 04:40	130.1	↓-0.2
4/20 04:50	129.5	↓-0.6
4/20 05:00	128.6	↓-0.9
4/20 05:10	127.2	↓-1.4
4/20 05:20	125.5	↓-1.7
4/20 05:30	123.5	↓-2.0
4/20 05:40	121.1	↓-2.4
4/20 05:50	118.4	↓-2.7
4/20 06:00	115.4	↓-3.0
4/20 06:10	112.0	↓-3.4
4/20 06:20	108.5	↓-3.5
4/20 06:30	104.7	↓-3.8
4/20 06:40	100.6	↓-4.1
4/20 06:50	96.4	↓-4.2
4/20 07:00	92.0	↓-4.4
4/20 07:10	87.5	↓-4.5
4/20 07:20	82.9	↓-4.6
4/20 07:30	78.3	↓-4.6
4/20 07:40	73.5	↓-4.8
4/20 07:50	68.8	↓-4.7
4/20 08:00	64.2	↓-4.6
4/20 08:10	59.6	↓-4.6
4/20 08:20	55.0	↓-4.6
4/20 08:30	50.7	↓-4.3
4/20 08:40	46.4	↓-4.3
4/20 08:50	42.4	↓-4.0
4/20 09:00	38.6	↓-3.8
4/20 09:10	35.0	↓-3.6
4/20 09:20	31.7	↓-3.3
4/20 09:30	28.7	↓-3.0
4/20 09:40	26.0	↓-2.7
4/20 09:50	23.7	↓-2.3
4/20 10:00	21.7	↓-2.0
4/20 10:10	20.0	↓-1.7
4/20 10:20	18.8	↓-1.2
4/20 10:30	17.9	↓-0.9
4/20 10:40	17.5	↓-0.4	干潮
4/20 10:50	17.4	↓-0.1
4/20 11:00	17.7	↑0.3
4/20 11:10	18.4	↑0.7
4/20 11:20	19.6	↑1.2
4/20 11:30	21.1	↑1.5
4/20 11:40	23.0	↑1.9
4/20 11:50	25.2	↑2.2
4/20 12:00	27.8	↑2.6
4/20 12:10	30.7	↑2.9
4/20 12:20	34.0	↑3.3
4/20 12:30	37.5	↑3.5
4/20 12:40	41.3	↑3.8
4/20 12:50	45.3	↑4.0
4/20 13:00	49.6	↑4.3
4/20 13:10	54.0	↑4.4
4/20 13:20	58.6	↑4.6
4/20 13:30	63.3	↑4.7
4/20 13:40	68.1	↑4.8
4/20 13:50	72.9	↑4.8
4/20 14:00	77.8	↑4.9	最大潮位差
4/20 14:10	82.7	↑4.9	最大潮位差
4/20 14:20	87.5	↑4.8
4/20 14:30	92.2	↑4.7
4/20 14:40	96.8	↑4.6
4/20 14:50	101.3	↑4.5
4/20 15:00	105.7	↑4.4
4/20 15:10	109.8	↑4.1
4/20 15:20	113.7	↑3.9
4/20 15:30	117.3	↑3.6
4/20 15:40	120.7	↑3.4
4/20 15:50	123.8	↑3.1
4/20 16:00	126.5	↑2.7
4/20 16:10	129.0	↑2.5
4/20 16:20	131.1	↑2.1
4/20 16:30	132.8	↑1.7
4/20 16:40	134.1	↑1.3
4/20 16:50	135.1	↑1.0
4/20 17:00	135.7	↑0.6
4/20 17:10	135.9	↑0.2	満潮
4/20 17:20	135.8	↓-0.1
4/20 17:30	135.2	↓-0.6
4/20 17:40	134.3	↓-0.9
4/20 17:50	133.1	↓-1.2
4/20 18:00	131.4	↓-1.7
4/20 18:10	129.5	↓-1.9
4/20 18:20	127.2	↓-2.3
4/20 18:30	124.7	↓-2.5
4/20 18:40	121.9	↓-2.8
4/20 18:50	118.8	↓-3.1
4/20 19:00	115.5	↓-3.3
4/20 19:10	112.0	↓-3.5
4/20 19:20	108.4	↓-3.6
4/20 19:30	104.6	↓-3.8
4/20 19:40	100.6	↓-4.0
4/20 19:50	96.6	↓-4.0
4/20 20:00	92.6	↓-4.0
4/20 20:10	88.6	↓-4.0
4/20 20:20	84.5	↓-4.1
4/20 20:30	80.5	↓-4.0
4/20 20:40	76.6	↓-3.9
4/20 20:50	72.8	↓-3.8
4/20 21:00	69.2	↓-3.6
4/20 21:10	65.7	↓-3.5
4/20 21:20	62.4	↓-3.3
4/20 21:30	59.3	↓-3.1
4/20 21:40	56.5	↓-2.8
4/20 21:50	53.9	↓-2.6
4/20 22:00	51.7	↓-2.2
4/20 22:10	49.7	↓-2.0
4/20 22:20	48.0	↓-1.7
4/20 22:30	46.7	↓-1.3
4/20 22:40	45.7	↓-1.0
4/20 22:50	45.1	↓-0.6
4/20 23:00	44.8	↓-0.3	干潮
4/20 23:10	44.9	↑0.1
4/20 23:20	45.3	↑0.4
4/20 23:30	46.1	↑0.8
4/20 23:40	47.3	↑1.2
4/20 23:50	48.7	↑1.4