20 (日)	05:52	12:08	18:24	-
	184cm	26cm	186cm	-
大潮 出 06:04 入 18:57 出 04:48 入 17:40 潮干狩り ○ 10:42～13:33

座間味（沖縄）2031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	44.0	↑0.5
4/20 00:10	45.0	↑1.0
4/20 00:20	46.5	↑1.5
4/20 00:30	48.5	↑2.0
4/20 00:40	50.9	↑2.4
4/20 00:50	53.8	↑2.9
4/20 01:00	57.2	↑3.4
4/20 01:10	60.9	↑3.7
4/20 01:20	65.1	↑4.2
4/20 01:30	69.5	↑4.4
4/20 01:40	74.4	↑4.9
4/20 01:50	79.5	↑5.1
4/20 02:00	84.8	↑5.3
4/20 02:10	90.4	↑5.6
4/20 02:20	96.1	↑5.7
4/20 02:30	102.0	↑5.9
4/20 02:40	107.9	↑5.9
4/20 02:50	113.9	↑6.0
4/20 03:00	119.9	↑6.0
4/20 03:10	125.9	↑6.0
4/20 03:20	131.7	↑5.8
4/20 03:30	137.5	↑5.8
4/20 03:40	143.0	↑5.5
4/20 03:50	148.4	↑5.4
4/20 04:00	153.5	↑5.1
4/20 04:10	158.3	↑4.8
4/20 04:20	162.7	↑4.4
4/20 04:30	166.8	↑4.1
4/20 04:40	170.5	↑3.7
4/20 04:50	173.8	↑3.3
4/20 05:00	176.6	↑2.8
4/20 05:10	179.0	↑2.4
4/20 05:20	180.8	↑1.8
4/20 05:30	182.2	↑1.4
4/20 05:40	183.0	↑0.8
4/20 05:50	183.3	↑0.3	満潮
4/20 06:00	183.1	↓-0.2
4/20 06:10	182.3	↓-0.8
4/20 06:20	181.0	↓-1.3
4/20 06:30	179.2	↓-1.8
4/20 06:40	176.8	↓-2.4
4/20 06:50	174.0	↓-2.8
4/20 07:00	170.7	↓-3.3
4/20 07:10	166.9	↓-3.8
4/20 07:20	162.7	↓-4.2
4/20 07:30	158.1	↓-4.6
4/20 07:40	153.1	↓-5.0
4/20 07:50	147.7	↓-5.4
4/20 08:00	142.1	↓-5.6
4/20 08:10	136.2	↓-5.9
4/20 08:20	130.0	↓-6.2
4/20 08:30	123.7	↓-6.3
4/20 08:40	117.2	↓-6.5
4/20 08:50	110.7	↓-6.5
4/20 09:00	104.1	↓-6.6
4/20 09:10	97.5	↓-6.6
4/20 09:20	90.9	↓-6.6
4/20 09:30	84.5	↓-6.4
4/20 09:40	78.1	↓-6.4
4/20 09:50	72.0	↓-6.1
4/20 10:00	66.0	↓-6.0
4/20 10:10	60.4	↓-5.6
4/20 10:20	55.0	↓-5.4
4/20 10:30	50.0	↓-5.0
4/20 10:40	45.4	↓-4.6
4/20 10:50	41.2	↓-4.2
4/20 11:00	37.4	↓-3.8
4/20 11:10	34.1	↓-3.3
4/20 11:20	31.3	↓-2.8
4/20 11:30	29.0	↓-2.3
4/20 11:40	27.2	↓-1.8
4/20 11:50	26.0	↓-1.2
4/20 12:00	25.3	↓-0.7	干潮
4/20 12:10	25.2	↓-0.1
4/20 12:20	25.6	↑0.4
4/20 12:30	26.7	↑1.1
4/20 12:40	28.2	↑1.5
4/20 12:50	30.3	↑2.1
4/20 13:00	32.9	↑2.6
4/20 13:10	36.1	↑3.2
4/20 13:20	39.7	↑3.6
4/20 13:30	43.8	↑4.1
4/20 13:40	48.3	↑4.5
4/20 13:50	53.2	↑4.9
4/20 14:00	58.4	↑5.2
4/20 14:10	64.1	↑5.7
4/20 14:20	69.9	↑5.8
4/20 14:30	76.1	↑6.2
4/20 14:40	82.4	↑6.3
4/20 14:50	88.9	↑6.5
4/20 15:00	95.5	↑6.6
4/20 15:10	102.2	↑6.7	最大潮位差
4/20 15:20	108.9	↑6.7	最大潮位差
4/20 15:30	115.6	↑6.7	最大潮位差
4/20 15:40	122.2	↑6.6
4/20 15:50	128.7	↑6.5
4/20 16:00	135.0	↑6.3
4/20 16:10	141.1	↑6.1
4/20 16:20	147.0	↑5.9
4/20 16:30	152.5	↑5.5
4/20 16:40	157.8	↑5.3
4/20 16:50	162.6	↑4.8
4/20 17:00	167.1	↑4.5
4/20 17:10	171.1	↑4.0
4/20 17:20	174.6	↑3.5
4/20 17:30	177.7	↑3.1
4/20 17:40	180.3	↑2.6
4/20 17:50	182.3	↑2.0
4/20 18:00	183.9	↑1.6
4/20 18:10	184.8	↑0.9
4/20 18:20	185.2	↑0.4	満潮
4/20 18:30	185.1	↓-0.1
4/20 18:40	184.4	↓-0.7
4/20 18:50	183.2	↓-1.2
4/20 19:00	181.4	↓-1.8
4/20 19:10	179.2	↓-2.2
4/20 19:20	176.4	↓-2.8
4/20 19:30	173.1	↓-3.3
4/20 19:40	169.5	↓-3.6
4/20 19:50	165.3	↓-4.2
4/20 20:00	160.8	↓-4.5
4/20 20:10	156.0	↓-4.8
4/20 20:20	150.8	↓-5.2
4/20 20:30	145.3	↓-5.5
4/20 20:40	139.6	↓-5.7
4/20 20:50	133.7	↓-5.9
4/20 21:00	127.7	↓-6.0
4/20 21:10	121.6	↓-6.1
4/20 21:20	115.4	↓-6.2
4/20 21:30	109.2	↓-6.2
4/20 21:40	103.0	↓-6.2
4/20 21:50	96.9	↓-6.1
4/20 22:00	91.0	↓-5.9
4/20 22:10	85.2	↓-5.8
4/20 22:20	79.7	↓-5.5
4/20 22:30	74.4	↓-5.3
4/20 22:40	69.4	↓-5.0
4/20 22:50	64.8	↓-4.6
4/20 23:00	60.5	↓-4.3
4/20 23:10	56.6	↓-3.9
4/20 23:20	53.2	↓-3.4
4/20 23:30	50.3	↓-2.9
4/20 23:40	47.8	↓-2.5
4/20 23:50	45.9	↓-1.9