20 (金)	07:10	01:58	23:17	15:05
	128cm	103cm	117cm	36cm
小潮 出 05:04 入 18:19 出 09:17 入 23:59 潮干狩り ○ 14:13～15:56

岩井袋（千葉）2029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	109.3	↓-0.9
4/20 00:10	108.4	↓-0.9
4/20 00:20	107.5	↓-0.9
4/20 00:30	106.7	↓-0.8
4/20 00:40	105.9	↓-0.8
4/20 00:50	105.2	↓-0.7
4/20 01:00	104.6	↓-0.6
4/20 01:10	104.1	↓-0.5
4/20 01:20	103.7	↓-0.4
4/20 01:30	103.3	↓-0.4
4/20 01:40	103.1	↓-0.2
4/20 01:50	102.9	↓-0.2	干潮
4/20 02:00	102.9	0
4/20 02:10	103.0	↑0.1
4/20 02:20	103.2	↑0.2
4/20 02:30	103.5	↑0.3
4/20 02:40	103.9	↑0.4
4/20 02:50	104.5	↑0.6
4/20 03:00	105.1	↑0.6
4/20 03:10	105.8	↑0.7
4/20 03:20	106.7	↑0.9
4/20 03:30	107.6	↑0.9
4/20 03:40	108.6	↑1.0
4/20 03:50	109.6	↑1.0
4/20 04:00	110.7	↑1.1
4/20 04:10	111.9	↑1.2
4/20 04:20	113.1	↑1.2
4/20 04:30	114.3	↑1.2
4/20 04:40	115.6	↑1.3
4/20 04:50	116.8	↑1.2
4/20 05:00	118.1	↑1.3
4/20 05:10	119.3	↑1.2
4/20 05:20	120.5	↑1.2
4/20 05:30	121.6	↑1.1
4/20 05:40	122.7	↑1.1
4/20 05:50	123.7	↑1.0
4/20 06:00	124.7	↑1.0
4/20 06:10	125.5	↑0.8
4/20 06:20	126.2	↑0.7
4/20 06:30	126.9	↑0.7
4/20 06:40	127.3	↑0.4
4/20 06:50	127.7	↑0.4
4/20 07:00	127.9	↑0.2	満潮
4/20 07:10	128.0	↑0.1	満潮
4/20 07:20	127.9	↓-0.1
4/20 07:30	127.6	↓-0.3
4/20 07:40	127.2	↓-0.4
4/20 07:50	126.6	↓-0.6
4/20 08:00	125.8	↓-0.8
4/20 08:10	124.8	↓-1.0
4/20 08:20	123.7	↓-1.1
4/20 08:30	122.4	↓-1.3
4/20 08:40	120.9	↓-1.5
4/20 08:50	119.3	↓-1.6
4/20 09:00	117.5	↓-1.8
4/20 09:10	115.5	↓-2.0
4/20 09:20	113.4	↓-2.1
4/20 09:30	111.1	↓-2.3
4/20 09:40	108.7	↓-2.4
4/20 09:50	106.2	↓-2.5
4/20 10:00	103.5	↓-2.7
4/20 10:10	100.8	↓-2.7
4/20 10:20	97.9	↓-2.9
4/20 10:30	95.0	↓-2.9
4/20 10:40	92.0	↓-3.0
4/20 10:50	88.9	↓-3.1
4/20 11:00	85.9	↓-3.0
4/20 11:10	82.7	↓-3.2	最大潮位差
4/20 11:20	79.6	↓-3.1
4/20 11:30	76.5	↓-3.1
4/20 11:40	73.4	↓-3.1
4/20 11:50	70.4	↓-3.0
4/20 12:00	67.3	↓-3.1
4/20 12:10	64.4	↓-2.9
4/20 12:20	61.5	↓-2.9
4/20 12:30	58.8	↓-2.7
4/20 12:40	56.1	↓-2.7
4/20 12:50	53.5	↓-2.6
4/20 13:00	51.1	↓-2.4
4/20 13:10	48.9	↓-2.2
4/20 13:20	46.7	↓-2.2
4/20 13:30	44.8	↓-1.9
4/20 13:40	43.0	↓-1.8
4/20 13:50	41.4	↓-1.6
4/20 14:00	40.0	↓-1.4
4/20 14:10	38.8	↓-1.2
4/20 14:20	37.8	↓-1.0
4/20 14:30	37.0	↓-0.8
4/20 14:40	36.4	↓-0.6
4/20 14:50	36.0	↓-0.4
4/20 15:00	35.8	↓-0.2	干潮
4/20 15:10	35.8	0
4/20 15:20	36.1	↑0.3
4/20 15:30	36.5	↑0.4
4/20 15:40	37.2	↑0.7
4/20 15:50	38.0	↑0.8
4/20 16:00	39.0	↑1.0
4/20 16:10	40.2	↑1.2
4/20 16:20	41.6	↑1.4
4/20 16:30	43.2	↑1.6
4/20 16:40	44.9	↑1.7
4/20 16:50	46.7	↑1.8
4/20 17:00	48.7	↑2.0
4/20 17:10	50.9	↑2.2
4/20 17:20	53.1	↑2.2
4/20 17:30	55.4	↑2.3
4/20 17:40	57.9	↑2.5
4/20 17:50	60.4	↑2.5
4/20 18:00	62.9	↑2.5
4/20 18:10	65.5	↑2.6
4/20 18:20	68.2	↑2.7
4/20 18:30	70.9	↑2.7
4/20 18:40	73.5	↑2.6
4/20 18:50	76.2	↑2.7
4/20 19:00	78.9	↑2.7
4/20 19:10	81.5	↑2.6
4/20 19:20	84.1	↑2.6
4/20 19:30	86.7	↑2.6
4/20 19:40	89.2	↑2.5
4/20 19:50	91.6	↑2.4
4/20 20:00	93.9	↑2.3
4/20 20:10	96.2	↑2.3
4/20 20:20	98.3	↑2.1
4/20 20:30	100.4	↑2.1
4/20 20:40	102.3	↑1.9
4/20 20:50	104.2	↑1.9
4/20 21:00	105.9	↑1.7
4/20 21:10	107.4	↑1.5
4/20 21:20	108.9	↑1.5
4/20 21:30	110.2	↑1.3
4/20 21:40	111.4	↑1.2
4/20 21:50	112.5	↑1.1
4/20 22:00	113.4	↑0.9
4/20 22:10	114.2	↑0.8
4/20 22:20	114.9	↑0.7
4/20 22:30	115.4	↑0.5
4/20 22:40	115.8	↑0.4
4/20 22:50	116.2	↑0.4
4/20 23:00	116.4	↑0.2
4/20 23:10	116.5	↑0.1	満潮
4/20 23:20	116.5	0
4/20 23:30	116.4	↓-0.1
4/20 23:40	116.2	↓-0.2
4/20 23:50	116.0	↓-0.2