20 (火)	02:12	08:37	13:19	20:43
	234cm	170cm	210cm	97cm
小潮 出 05:38 入 18:49 出 11:17 入 01:13

姫島（大分）2021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	197.3	↑5.4	最大潮位差
4/20 00:10	202.4	↑5.1
4/20 00:20	207.2	↑4.8
4/20 00:30	211.7	↑4.5
4/20 00:40	215.8	↑4.1
4/20 00:50	219.6	↑3.8
4/20 01:00	222.9	↑3.3
4/20 01:10	225.8	↑2.9
4/20 01:20	228.3	↑2.5
4/20 01:30	230.2	↑1.9
4/20 01:40	231.8	↑1.6
4/20 01:50	232.9	↑1.1
4/20 02:00	233.5	↑0.6
4/20 02:10	233.7	↑0.2	満潮
4/20 02:20	233.6	↓-0.1
4/20 02:30	233.0	↓-0.6
4/20 02:40	232.2	↓-0.8
4/20 02:50	231.0	↓-1.2
4/20 03:00	229.6	↓-1.4
4/20 03:10	227.9	↓-1.7
4/20 03:20	226.0	↓-1.9
4/20 03:30	224.0	↓-2.0
4/20 03:40	221.8	↓-2.2
4/20 03:50	219.5	↓-2.3
4/20 04:00	217.1	↓-2.4
4/20 04:10	214.7	↓-2.4
4/20 04:20	212.2	↓-2.5
4/20 04:30	209.7	↓-2.5
4/20 04:40	207.2	↓-2.5
4/20 04:50	204.7	↓-2.5
4/20 05:00	202.2	↓-2.5
4/20 05:10	199.7	↓-2.5
4/20 05:20	197.3	↓-2.4
4/20 05:30	195.0	↓-2.3
4/20 05:40	192.7	↓-2.3
4/20 05:50	190.4	↓-2.3
4/20 06:00	188.2	↓-2.2
4/20 06:10	186.2	↓-2.0
4/20 06:20	184.1	↓-2.1
4/20 06:30	182.2	↓-1.9
4/20 06:40	180.4	↓-1.8
4/20 06:50	178.7	↓-1.7
4/20 07:00	177.2	↓-1.5
4/20 07:10	175.7	↓-1.5
4/20 07:20	174.4	↓-1.3
4/20 07:30	173.2	↓-1.2
4/20 07:40	172.2	↓-1.0
4/20 07:50	171.4	↓-0.8
4/20 08:00	170.7	↓-0.7
4/20 08:10	170.1	↓-0.6
4/20 08:20	169.8	↓-0.3
4/20 08:30	169.6	↓-0.2	干潮
4/20 08:40	169.6	0
4/20 08:50	169.7	↑0.1
4/20 09:00	170.0	↑0.3
4/20 09:10	170.6	↑0.6
4/20 09:20	171.3	↑0.7
4/20 09:30	172.1	↑0.8
4/20 09:40	173.2	↑1.1
4/20 09:50	174.4	↑1.2
4/20 10:00	175.8	↑1.4
4/20 10:10	177.4	↑1.6
4/20 10:20	179.1	↑1.7
4/20 10:30	180.9	↑1.8
4/20 10:40	182.9	↑2.0
4/20 10:50	185.0	↑2.1
4/20 11:00	187.2	↑2.2
4/20 11:10	189.5	↑2.3
4/20 11:20	191.7	↑2.2
4/20 11:30	194.0	↑2.3
4/20 11:40	196.3	↑2.3
4/20 11:50	198.5	↑2.2
4/20 12:00	200.6	↑2.1
4/20 12:10	202.6	↑2.0
4/20 12:20	204.4	↑1.8
4/20 12:30	206.0	↑1.6
4/20 12:40	207.4	↑1.4
4/20 12:50	208.4	↑1.0
4/20 13:00	209.2	↑0.8
4/20 13:10	209.7	↑0.5	満潮
4/20 13:20	209.8	↑0.1
4/20 13:30	209.5	↓-0.3
4/20 13:40	208.9	↓-0.6
4/20 13:50	207.9	↓-1.0
4/20 14:00	206.6	↓-1.3
4/20 14:10	204.9	↓-1.7
4/20 14:20	202.8	↓-2.1
4/20 14:30	200.5	↓-2.3
4/20 14:40	197.8	↓-2.7
4/20 14:50	194.9	↓-2.9
4/20 15:00	191.8	↓-3.1
4/20 15:10	188.4	↓-3.4
4/20 15:20	184.9	↓-3.5
4/20 15:30	181.3	↓-3.6
4/20 15:40	177.6	↓-3.7
4/20 15:50	173.8	↓-3.8
4/20 16:00	169.9	↓-3.9
4/20 16:10	166.1	↓-3.8
4/20 16:20	162.2	↓-3.9
4/20 16:30	158.3	↓-3.9
4/20 16:40	154.5	↓-3.8
4/20 16:50	150.8	↓-3.7
4/20 17:00	147.1	↓-3.7
4/20 17:10	143.4	↓-3.7
4/20 17:20	139.9	↓-3.5
4/20 17:30	136.4	↓-3.5
4/20 17:40	133.1	↓-3.3
4/20 17:50	129.8	↓-3.3
4/20 18:00	126.6	↓-3.2
4/20 18:10	123.5	↓-3.1
4/20 18:20	120.5	↓-3.0
4/20 18:30	117.7	↓-2.8
4/20 18:40	115.0	↓-2.7
4/20 18:50	112.4	↓-2.6
4/20 19:00	110.0	↓-2.4
4/20 19:10	107.7	↓-2.3
4/20 19:20	105.6	↓-2.1
4/20 19:30	103.7	↓-1.9
4/20 19:40	102.0	↓-1.7
4/20 19:50	100.5	↓-1.5
4/20 20:00	99.2	↓-1.3
4/20 20:10	98.2	↓-1.0
4/20 20:20	97.5	↓-0.7
4/20 20:30	97.0	↓-0.5
4/20 20:40	96.8	↓-0.2	干潮
4/20 20:50	96.9	↑0.1
4/20 21:00	97.2	↑0.3
4/20 21:10	97.9	↑0.7
4/20 21:20	98.9	↑1.0
4/20 21:30	100.2	↑1.3
4/20 21:40	101.8	↑1.6
4/20 21:50	103.7	↑1.9
4/20 22:00	106.0	↑2.3
4/20 22:10	108.6	↑2.6
4/20 22:20	111.5	↑2.9
4/20 22:30	114.7	↑3.2
4/20 22:40	118.2	↑3.5
4/20 22:50	122.0	↑3.8
4/20 23:00	126.1	↑4.1
4/20 23:10	130.4	↑4.3
4/20 23:20	134.9	↑4.5
4/20 23:30	139.7	↑4.8
4/20 23:40	144.6	↑4.9
4/20 23:50	149.7	↑5.1