20 (土)	05:14	12:03	18:50	-
	150cm	8cm	141cm	-
中潮 出 05:04 入 18:19 出 21:02 入 06:12 潮干狩り ◎ 09:57～14:09

岩井袋（千葉）2030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	72.3	↑0.5
4/20 00:10	73.2	↑0.9
4/20 00:20	74.4	↑1.2
4/20 00:30	75.9	↑1.5
4/20 00:40	77.7	↑1.8
4/20 00:50	79.8	↑2.1
4/20 01:00	82.1	↑2.3
4/20 01:10	84.7	↑2.6
4/20 01:20	87.5	↑2.8
4/20 01:30	90.5	↑3.0
4/20 01:40	93.7	↑3.2
4/20 01:50	97.0	↑3.3
4/20 02:00	100.4	↑3.4
4/20 02:10	103.9	↑3.5
4/20 02:20	107.5	↑3.6
4/20 02:30	111.1	↑3.6
4/20 02:40	114.7	↑3.6
4/20 02:50	118.3	↑3.6
4/20 03:00	121.8	↑3.5
4/20 03:10	125.3	↑3.5
4/20 03:20	128.6	↑3.3
4/20 03:30	131.7	↑3.1
4/20 03:40	134.7	↑3.0
4/20 03:50	137.4	↑2.7
4/20 04:00	140.0	↑2.6
4/20 04:10	142.2	↑2.2
4/20 04:20	144.2	↑2.0
4/20 04:30	145.9	↑1.7
4/20 04:40	147.3	↑1.4
4/20 04:50	148.3	↑1.0
4/20 05:00	149.0	↑0.7
4/20 05:10	149.3	↑0.3	満潮
4/20 05:20	149.2	↓-0.1
4/20 05:30	148.7	↓-0.5
4/20 05:40	147.9	↓-0.8
4/20 05:50	146.7	↓-1.2
4/20 06:00	145.1	↓-1.6
4/20 06:10	143.1	↓-2.0
4/20 06:20	140.8	↓-2.3
4/20 06:30	138.0	↓-2.8
4/20 06:40	135.0	↓-3.0
4/20 06:50	131.6	↓-3.4
4/20 07:00	127.8	↓-3.8
4/20 07:10	123.8	↓-4.0
4/20 07:20	119.5	↓-4.3
4/20 07:30	115.0	↓-4.5
4/20 07:40	110.2	↓-4.8
4/20 07:50	105.2	↓-5.0
4/20 08:00	100.1	↓-5.1
4/20 08:10	94.8	↓-5.3
4/20 08:20	89.4	↓-5.4
4/20 08:30	84.0	↓-5.4
4/20 08:40	78.5	↓-5.5
4/20 08:50	72.9	↓-5.6	最大潮位差
4/20 09:00	67.5	↓-5.4
4/20 09:10	62.0	↓-5.5
4/20 09:20	56.7	↓-5.3
4/20 09:30	51.5	↓-5.2
4/20 09:40	46.5	↓-5.0
4/20 09:50	41.6	↓-4.9
4/20 10:00	37.0	↓-4.6
4/20 10:10	32.6	↓-4.4
4/20 10:20	28.5	↓-4.1
4/20 10:30	24.7	↓-3.8
4/20 10:40	21.2	↓-3.5
4/20 10:50	18.1	↓-3.1
4/20 11:00	15.3	↓-2.8
4/20 11:10	12.9	↓-2.4
4/20 11:20	10.9	↓-2.0
4/20 11:30	9.4	↓-1.5
4/20 11:40	8.2	↓-1.2
4/20 11:50	7.5	↓-0.7
4/20 12:00	7.2	↓-0.3	干潮
4/20 12:10	7.3	↑0.1
4/20 12:20	7.9	↑0.6
4/20 12:30	8.9	↑1.0
4/20 12:40	10.3	↑1.4
4/20 12:50	12.1	↑1.8
4/20 13:00	14.3	↑2.2
4/20 13:10	16.8	↑2.5
4/20 13:20	19.8	↑3.0
4/20 13:30	23.1	↑3.3
4/20 13:40	26.7	↑3.6
4/20 13:50	30.5	↑3.8
4/20 14:00	34.7	↑4.2
4/20 14:10	39.1	↑4.4
4/20 14:20	43.7	↑4.6
4/20 14:30	48.5	↑4.8
4/20 14:40	53.4	↑4.9
4/20 14:50	58.5	↑5.1
4/20 15:00	63.6	↑5.1
4/20 15:10	68.8	↑5.2
4/20 15:20	74.1	↑5.3
4/20 15:30	79.3	↑5.2
4/20 15:40	84.4	↑5.1
4/20 15:50	89.5	↑5.1
4/20 16:00	94.5	↑5.0
4/20 16:10	99.4	↑4.9
4/20 16:20	104.0	↑4.6
4/20 16:30	108.5	↑4.5
4/20 16:40	112.8	↑4.3
4/20 16:50	116.9	↑4.1
4/20 17:00	120.6	↑3.7
4/20 17:10	124.1	↑3.5
4/20 17:20	127.3	↑3.2
4/20 17:30	130.2	↑2.9
4/20 17:40	132.8	↑2.6
4/20 17:50	135.0	↑2.2
4/20 18:00	136.8	↑1.8
4/20 18:10	138.4	↑1.6
4/20 18:20	139.5	↑1.1
4/20 18:30	140.4	↑0.9
4/20 18:40	140.8	↑0.4	満潮
4/20 18:50	140.9	↑0.1	満潮
4/20 19:00	140.7	↓-0.2
4/20 19:10	140.2	↓-0.5
4/20 19:20	139.3	↓-0.9
4/20 19:30	138.2	↓-1.1
4/20 19:40	136.7	↓-1.5
4/20 19:50	135.0	↓-1.7
4/20 20:00	133.1	↓-1.9
4/20 20:10	130.9	↓-2.2
4/20 20:20	128.5	↓-2.4
4/20 20:30	126.0	↓-2.5
4/20 20:40	123.3	↓-2.7
4/20 20:50	120.5	↓-2.8
4/20 21:00	117.6	↓-2.9
4/20 21:10	114.7	↓-2.9
4/20 21:20	111.7	↓-3.0
4/20 21:30	108.6	↓-3.1
4/20 21:40	105.7	↓-2.9
4/20 21:50	102.7	↓-3.0
4/20 22:00	99.8	↓-2.9
4/20 22:10	97.1	↓-2.7
4/20 22:20	94.4	↓-2.7
4/20 22:30	91.9	↓-2.5
4/20 22:40	89.6	↓-2.3
4/20 22:50	87.5	↓-2.1
4/20 23:00	85.6	↓-1.9
4/20 23:10	83.9	↓-1.7
4/20 23:20	82.4	↓-1.5
4/20 23:30	81.3	↓-1.1
4/20 23:40	80.3	↓-1.0
4/20 23:50	79.7	↓-0.6