20 (火)	04:48	11:09	17:39	23:28
	113cm	16cm	121cm	46cm
大潮 出 05:07 入 18:10 出 17:37 入 04:13 潮干狩り ○ 09:35～12:40

鳥島（東京）2027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	46.2	↑1.6
4/20 00:10	48.0	↑1.8
4/20 00:20	50.0	↑2.0
4/20 00:30	52.2	↑2.2
4/20 00:40	54.7	↑2.5
4/20 00:50	57.3	↑2.6
4/20 01:00	60.0	↑2.7
4/20 01:10	62.9	↑2.9
4/20 01:20	65.9	↑3.0
4/20 01:30	69.0	↑3.1
4/20 01:40	72.2	↑3.2
4/20 01:50	75.4	↑3.2
4/20 02:00	78.6	↑3.2
4/20 02:10	81.8	↑3.2
4/20 02:20	84.9	↑3.1
4/20 02:30	88.0	↑3.1
4/20 02:40	91.1	↑3.1
4/20 02:50	93.9	↑2.8
4/20 03:00	96.7	↑2.8
4/20 03:10	99.3	↑2.6
4/20 03:20	101.7	↑2.4
4/20 03:30	103.9	↑2.2
4/20 03:40	105.9	↑2.0
4/20 03:50	107.7	↑1.8
4/20 04:00	109.1	↑1.4
4/20 04:10	110.4	↑1.3
4/20 04:20	111.3	↑0.9
4/20 04:30	112.0	↑0.7
4/20 04:40	112.3	↑0.3	満潮
4/20 04:50	112.4	↑0.1
4/20 05:00	112.1	↓-0.3
4/20 05:10	111.5	↓-0.6
4/20 05:20	110.6	↓-0.9
4/20 05:30	109.5	↓-1.1
4/20 05:40	108.0	↓-1.5
4/20 05:50	106.2	↓-1.8
4/20 06:00	104.1	↓-2.1
4/20 06:10	101.8	↓-2.3
4/20 06:20	99.2	↓-2.6
4/20 06:30	96.4	↓-2.8
4/20 06:40	93.4	↓-3.0
4/20 06:50	90.1	↓-3.3
4/20 07:00	86.7	↓-3.4
4/20 07:10	83.1	↓-3.6
4/20 07:20	79.4	↓-3.7
4/20 07:30	75.5	↓-3.9
4/20 07:40	71.6	↓-3.9
4/20 07:50	67.7	↓-3.9
4/20 08:00	63.7	↓-4.0
4/20 08:10	59.7	↓-4.0
4/20 08:20	55.7	↓-4.0
4/20 08:30	51.8	↓-3.9
4/20 08:40	47.9	↓-3.9
4/20 08:50	44.2	↓-3.7
4/20 09:00	40.6	↓-3.6
4/20 09:10	37.1	↓-3.5
4/20 09:20	33.9	↓-3.2
4/20 09:30	30.8	↓-3.1
4/20 09:40	28.0	↓-2.8
4/20 09:50	25.4	↓-2.6
4/20 10:00	23.1	↓-2.3
4/20 10:10	21.1	↓-2.0
4/20 10:20	19.3	↓-1.8
4/20 10:30	17.9	↓-1.4
4/20 10:40	16.8	↓-1.1
4/20 10:50	16.1	↓-0.7
4/20 11:00	15.6	↓-0.5	干潮
4/20 11:10	15.6	0
4/20 11:20	15.8	↑0.2
4/20 11:30	16.4	↑0.6
4/20 11:40	17.3	↑0.9
4/20 11:50	18.6	↑1.3
4/20 12:00	20.2	↑1.6
4/20 12:10	22.1	↑1.9
4/20 12:20	24.3	↑2.2
4/20 12:30	26.8	↑2.5
4/20 12:40	29.6	↑2.8
4/20 12:50	32.6	↑3.0
4/20 13:00	35.9	↑3.3
4/20 13:10	39.3	↑3.4
4/20 13:20	43.0	↑3.7
4/20 13:30	46.8	↑3.8
4/20 13:40	50.8	↑4.0
4/20 13:50	54.9	↑4.1
4/20 14:00	59.0	↑4.1
4/20 14:10	63.2	↑4.2
4/20 14:20	67.5	↑4.3	最大潮位差
4/20 14:30	71.7	↑4.2
4/20 14:40	76.0	↑4.3	最大潮位差
4/20 14:50	80.1	↑4.1
4/20 15:00	84.2	↑4.1
4/20 15:10	88.2	↑4.0
4/20 15:20	92.1	↑3.9
4/20 15:30	95.7	↑3.6
4/20 15:40	99.2	↑3.5
4/20 15:50	102.5	↑3.3
4/20 16:00	105.6	↑3.1
4/20 16:10	108.4	↑2.8
4/20 16:20	111.0	↑2.6
4/20 16:30	113.3	↑2.3
4/20 16:40	115.3	↑2.0
4/20 16:50	117.0	↑1.7
4/20 17:00	118.4	↑1.4
4/20 17:10	119.4	↑1.0
4/20 17:20	120.2	↑0.8
4/20 17:30	120.6	↑0.4	満潮
4/20 17:40	120.7	↑0.1
4/20 17:50	120.5	↓-0.2
4/20 18:00	119.9	↓-0.6
4/20 18:10	119.1	↓-0.8
4/20 18:20	117.9	↓-1.2
4/20 18:30	116.5	↓-1.4
4/20 18:40	114.8	↓-1.7
4/20 18:50	112.8	↓-2.0
4/20 19:00	110.6	↓-2.2
4/20 19:10	108.1	↓-2.5
4/20 19:20	105.5	↓-2.6
4/20 19:30	102.7	↓-2.8
4/20 19:40	99.7	↓-3.0
4/20 19:50	96.6	↓-3.1
4/20 20:00	93.4	↓-3.2
4/20 20:10	90.1	↓-3.3
4/20 20:20	86.8	↓-3.3
4/20 20:30	83.4	↓-3.4
4/20 20:40	80.1	↓-3.3
4/20 20:50	76.8	↓-3.3
4/20 21:00	73.5	↓-3.3
4/20 21:10	70.3	↓-3.2
4/20 21:20	67.2	↓-3.1
4/20 21:30	64.2	↓-3.0
4/20 21:40	61.4	↓-2.8
4/20 21:50	58.8	↓-2.6
4/20 22:00	56.4	↓-2.4
4/20 22:10	54.1	↓-2.3
4/20 22:20	52.1	↓-2.0
4/20 22:30	50.4	↓-1.7
4/20 22:40	48.9	↓-1.5
4/20 22:50	47.7	↓-1.2
4/20 23:00	46.8	↓-0.9
4/20 23:10	46.1	↓-0.7
4/20 23:20	45.8	↓-0.3	干潮
4/20 23:30	45.7	↓-0.1
4/20 23:40	46.0	↑0.3
4/20 23:50	46.5	↑0.5