20 (月)	05:24	12:22	19:22	-
	145cm	-17cm	130cm	-
中潮 出 05:01 入 18:16 出 06:31 入 21:50 潮干狩り ◎ 09:44～15:05

上総勝浦（千葉）2026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	67.5	↑0.1
4/20 00:10	68.0	↑0.5
4/20 00:20	68.7	↑0.7
4/20 00:30	69.8	↑1.1
4/20 00:40	71.2	↑1.4
4/20 00:50	72.9	↑1.7
4/20 01:00	74.8	↑1.9
4/20 01:10	77.1	↑2.3
4/20 01:20	79.5	↑2.4
4/20 01:30	82.2	↑2.7
4/20 01:40	85.1	↑2.9
4/20 01:50	88.2	↑3.1
4/20 02:00	91.4	↑3.2
4/20 02:10	94.8	↑3.4
4/20 02:20	98.2	↑3.4
4/20 02:30	101.7	↑3.5
4/20 02:40	105.3	↑3.6
4/20 02:50	108.9	↑3.6
4/20 03:00	112.5	↑3.6
4/20 03:10	116.0	↑3.5
4/20 03:20	119.4	↑3.4
4/20 03:30	122.7	↑3.3
4/20 03:40	125.9	↑3.2
4/20 03:50	129.0	↑3.1
4/20 04:00	131.8	↑2.8
4/20 04:10	134.4	↑2.6
4/20 04:20	136.7	↑2.3
4/20 04:30	138.7	↑2.0
4/20 04:40	140.5	↑1.8
4/20 04:50	141.9	↑1.4
4/20 05:00	143.0	↑1.1
4/20 05:10	143.7	↑0.7
4/20 05:20	144.0	↑0.3	満潮
4/20 05:30	143.9	↓-0.1
4/20 05:40	143.5	↓-0.4
4/20 05:50	142.6	↓-0.9
4/20 06:00	141.3	↓-1.3
4/20 06:10	139.6	↓-1.7
4/20 06:20	137.5	↓-2.1
4/20 06:30	135.0	↓-2.5
4/20 06:40	132.0	↓-3.0
4/20 06:50	128.7	↓-3.3
4/20 07:00	125.1	↓-3.6
4/20 07:10	121.0	↓-4.1
4/20 07:20	116.7	↓-4.3
4/20 07:30	112.0	↓-4.7
4/20 07:40	107.1	↓-4.9
4/20 07:50	101.9	↓-5.2
4/20 08:00	96.4	↓-5.5
4/20 08:10	90.8	↓-5.6
4/20 08:20	85.0	↓-5.8
4/20 08:30	79.0	↓-6.0
4/20 08:40	73.0	↓-6.0
4/20 08:50	66.8	↓-6.2	最大潮位差
4/20 09:00	60.7	↓-6.1
4/20 09:10	54.6	↓-6.1
4/20 09:20	48.5	↓-6.1
4/20 09:30	42.4	↓-6.1
4/20 09:40	36.5	↓-5.9
4/20 09:50	30.8	↓-5.7
4/20 10:00	25.2	↓-5.6
4/20 10:10	19.8	↓-5.4
4/20 10:20	14.7	↓-5.1
4/20 10:30	9.9	↓-4.8
4/20 10:40	5.4	↓-4.5
4/20 10:50	1.2	↓-4.2
4/20 11:00	-2.6	↓-3.8
4/20 11:10	-6.0	↓-3.4
4/20 11:20	-9.0	↓-3.0
4/20 11:30	-11.6	↓-2.6
4/20 11:40	-13.8	↓-2.2
4/20 11:50	-15.5	↓-1.7
4/20 12:00	-16.7	↓-1.2
4/20 12:10	-17.5	↓-0.8
4/20 12:20	-17.7	↓-0.2	干潮
4/20 12:30	-17.6	↑0.1
4/20 12:40	-16.9	↑0.7
4/20 12:50	-15.8	↑1.1
4/20 13:00	-14.3	↑1.5
4/20 13:10	-12.3	↑2.0
4/20 13:20	-9.9	↑2.4
4/20 13:30	-7.1	↑2.8
4/20 13:40	-3.9	↑3.2
4/20 13:50	-0.3	↑3.6
4/20 14:00	3.5	↑3.8
4/20 14:10	7.7	↑4.2
4/20 14:20	12.2	↑4.5
4/20 14:30	16.9	↑4.7
4/20 14:40	21.9	↑5.0
4/20 14:50	27.0	↑5.1
4/20 15:00	32.3	↑5.3
4/20 15:10	37.7	↑5.4
4/20 15:20	43.2	↑5.5
4/20 15:30	48.8	↑5.6
4/20 15:40	54.4	↑5.6
4/20 15:50	60.0	↑5.6
4/20 16:00	65.6	↑5.6
4/20 16:10	71.0	↑5.4
4/20 16:20	76.4	↑5.4
4/20 16:30	81.7	↑5.3
4/20 16:40	86.7	↑5.0
4/20 16:50	91.6	↑4.9
4/20 17:00	96.3	↑4.7
4/20 17:10	100.7	↑4.4
4/20 17:20	104.9	↑4.2
4/20 17:30	108.8	↑3.9
4/20 17:40	112.4	↑3.6
4/20 17:50	115.7	↑3.3
4/20 18:00	118.6	↑2.9
4/20 18:10	121.2	↑2.6
4/20 18:20	123.5	↑2.3
4/20 18:30	125.4	↑1.9
4/20 18:40	126.9	↑1.5
4/20 18:50	128.1	↑1.2
4/20 19:00	129.0	↑0.9
4/20 19:10	129.5	↑0.5
4/20 19:20	129.7	↑0.2	満潮
4/20 19:30	129.6	↓-0.1
4/20 19:40	129.1	↓-0.5
4/20 19:50	128.4	↓-0.7
4/20 20:00	127.3	↓-1.1
4/20 20:10	126.1	↓-1.2
4/20 20:20	124.5	↓-1.6
4/20 20:30	122.8	↓-1.7
4/20 20:40	120.9	↓-1.9
4/20 20:50	118.7	↓-2.2
4/20 21:00	116.5	↓-2.2
4/20 21:10	114.1	↓-2.4
4/20 21:20	111.6	↓-2.5
4/20 21:30	109.0	↓-2.6
4/20 21:40	106.4	↓-2.6
4/20 21:50	103.8	↓-2.6
4/20 22:00	101.2	↓-2.6
4/20 22:10	98.6	↓-2.6
4/20 22:20	96.0	↓-2.6
4/20 22:30	93.6	↓-2.4
4/20 22:40	91.2	↓-2.4
4/20 22:50	89.0	↓-2.2
4/20 23:00	86.9	↓-2.1
4/20 23:10	85.0	↓-1.9
4/20 23:20	83.2	↓-1.8
4/20 23:30	81.7	↓-1.5
4/20 23:40	80.4	↓-1.3
4/20 23:50	79.4	↓-1.0