20 (月)	05:29	12:28	19:23	-
	149cm	7cm	135cm	-
中潮 出 05:04 入 18:19 出 06:33 入 21:53 潮干狩り ◎ 10:18～14:39

岩井袋（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	79.0	0
4/20 00:10	79.3	↑0.3
4/20 00:20	79.9	↑0.6
4/20 00:30	80.7	↑0.8
4/20 00:40	81.9	↑1.2
4/20 00:50	83.3	↑1.4
4/20 01:00	85.0	↑1.7
4/20 01:10	86.9	↑1.9
4/20 01:20	89.1	↑2.2
4/20 01:30	91.4	↑2.3
4/20 01:40	94.0	↑2.6
4/20 01:50	96.8	↑2.8
4/20 02:00	99.7	↑2.9
4/20 02:10	102.7	↑3.0
4/20 02:20	105.8	↑3.1
4/20 02:30	109.1	↑3.3
4/20 02:40	112.3	↑3.2
4/20 02:50	115.6	↑3.3
4/20 03:00	118.9	↑3.3
4/20 03:10	122.1	↑3.2
4/20 03:20	125.3	↑3.2
4/20 03:30	128.4	↑3.1
4/20 03:40	131.3	↑2.9
4/20 03:50	134.2	↑2.9
4/20 04:00	136.8	↑2.6
4/20 04:10	139.2	↑2.4
4/20 04:20	141.4	↑2.2
4/20 04:30	143.4	↑2.0
4/20 04:40	145.1	↑1.7
4/20 04:50	146.5	↑1.4
4/20 05:00	147.6	↑1.1
4/20 05:10	148.4	↑0.8
4/20 05:20	148.8	↑0.4	満潮
4/20 05:30	148.9	↑0.1
4/20 05:40	148.6	↓-0.3
4/20 05:50	148.0	↓-0.6
4/20 06:00	147.0	↓-1.0
4/20 06:10	145.7	↓-1.3
4/20 06:20	144.0	↓-1.7
4/20 06:30	141.9	↓-2.1
4/20 06:40	139.5	↓-2.4
4/20 06:50	136.7	↓-2.8
4/20 07:00	133.6	↓-3.1
4/20 07:10	130.2	↓-3.4
4/20 07:20	126.5	↓-3.7
4/20 07:30	122.5	↓-4.0
4/20 07:40	118.3	↓-4.2
4/20 07:50	113.8	↓-4.5
4/20 08:00	109.1	↓-4.7
4/20 08:10	104.2	↓-4.9
4/20 08:20	99.2	↓-5.0
4/20 08:30	94.0	↓-5.2
4/20 08:40	88.7	↓-5.3
4/20 08:50	83.4	↓-5.3
4/20 09:00	78.0	↓-5.4	最大潮位差
4/20 09:10	72.6	↓-5.4	最大潮位差
4/20 09:20	67.3	↓-5.3
4/20 09:30	62.0	↓-5.3
4/20 09:40	56.7	↓-5.3
4/20 09:50	51.6	↓-5.1
4/20 10:00	46.7	↓-4.9
4/20 10:10	41.9	↓-4.8
4/20 10:20	37.4	↓-4.5
4/20 10:30	33.0	↓-4.4
4/20 10:40	29.0	↓-4.0
4/20 10:50	25.2	↓-3.8
4/20 11:00	21.7	↓-3.5
4/20 11:10	18.6	↓-3.1
4/20 11:20	15.8	↓-2.8
4/20 11:30	13.3	↓-2.5
4/20 11:40	11.3	↓-2.0
4/20 11:50	9.6	↓-1.7
4/20 12:00	8.3	↓-1.3
4/20 12:10	7.4	↓-0.9
4/20 12:20	6.9	↓-0.5	干潮
4/20 12:30	6.9	0
4/20 12:40	7.2	↑0.3
4/20 12:50	8.0	↑0.8
4/20 13:00	9.1	↑1.1
4/20 13:10	10.6	↑1.5
4/20 13:20	12.5	↑1.9
4/20 13:30	14.8	↑2.3
4/20 13:40	17.4	↑2.6
4/20 13:50	20.3	↑2.9
4/20 14:00	23.6	↑3.3
4/20 14:10	27.1	↑3.5
4/20 14:20	30.9	↑3.8
4/20 14:30	34.9	↑4.0
4/20 14:40	39.1	↑4.2
4/20 14:50	43.6	↑4.5
4/20 15:00	48.1	↑4.5
4/20 15:10	52.8	↑4.7
4/20 15:20	57.6	↑4.8
4/20 15:30	62.5	↑4.9
4/20 15:40	67.4	↑4.9
4/20 15:50	72.3	↑4.9
4/20 16:00	77.2	↑4.9
4/20 16:10	82.0	↑4.8
4/20 16:20	86.7	↑4.7
4/20 16:30	91.4	↑4.7
4/20 16:40	95.9	↑4.5
4/20 16:50	100.2	↑4.3
4/20 17:00	104.4	↑4.2
4/20 17:10	108.3	↑3.9
4/20 17:20	112.1	↑3.8
4/20 17:30	115.5	↑3.4
4/20 17:40	118.8	↑3.3
4/20 17:50	121.7	↑2.9
4/20 18:00	124.4	↑2.7
4/20 18:10	126.7	↑2.3
4/20 18:20	128.8	↑2.1
4/20 18:30	130.5	↑1.7
4/20 18:40	132.0	↑1.5
4/20 18:50	133.1	↑1.1
4/20 19:00	133.9	↑0.8
4/20 19:10	134.4	↑0.5
4/20 19:20	134.6	↑0.2	満潮
4/20 19:30	134.5	↓-0.1
4/20 19:40	134.2	↓-0.3
4/20 19:50	133.5	↓-0.7
4/20 20:00	132.6	↓-0.9
4/20 20:10	131.5	↓-1.1
4/20 20:20	130.1	↓-1.4
4/20 20:30	128.6	↓-1.5
4/20 20:40	126.8	↓-1.8
4/20 20:50	124.9	↓-1.9
4/20 21:00	122.9	↓-2.0
4/20 21:10	120.7	↓-2.2
4/20 21:20	118.5	↓-2.2
4/20 21:30	116.2	↓-2.3
4/20 21:40	113.8	↓-2.4
4/20 21:50	111.5	↓-2.3
4/20 22:00	109.1	↓-2.4
4/20 22:10	106.8	↓-2.3
4/20 22:20	104.5	↓-2.3
4/20 22:30	102.3	↓-2.2
4/20 22:40	100.2	↓-2.1
4/20 22:50	98.3	↓-1.9
4/20 23:00	96.4	↓-1.9
4/20 23:10	94.8	↓-1.6
4/20 23:20	93.3	↓-1.5
4/20 23:30	92.0	↓-1.3
4/20 23:40	90.9	↓-1.1
4/20 23:50	90.0	↓-0.9