20 (土)	11:02	05:07	23:56	17:15
	335cm	74cm	371cm	-15cm
中潮 出 05:33 入 18:45 出 21:28 入 06:44

波止浜（愛媛）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	359.6	↓-5.3
4/20 00:10	353.3	↓-6.3
4/20 00:20	345.9	↓-7.4
4/20 00:30	337.5	↓-8.4
4/20 00:40	328.2	↓-9.3
4/20 00:50	318.0	↓-10.2
4/20 01:00	307.1	↓-10.9
4/20 01:10	295.5	↓-11.6
4/20 01:20	283.3	↓-12.2
4/20 01:30	270.7	↓-12.6
4/20 01:40	257.6	↓-13.1
4/20 01:50	244.4	↓-13.2
4/20 02:00	230.9	↓-13.5
4/20 02:10	217.5	↓-13.4
4/20 02:20	204.1	↓-13.4
4/20 02:30	190.9	↓-13.2
4/20 02:40	178.0	↓-12.9
4/20 02:50	165.5	↓-12.5
4/20 03:00	153.5	↓-12.0
4/20 03:10	142.0	↓-11.5
4/20 03:20	131.3	↓-10.7
4/20 03:30	121.3	↓-10.0
4/20 03:40	112.2	↓-9.1
4/20 03:50	103.9	↓-8.3
4/20 04:00	96.6	↓-7.3
4/20 04:10	90.3	↓-6.3
4/20 04:20	84.9	↓-5.4
4/20 04:30	80.6	↓-4.3
4/20 04:40	77.4	↓-3.2
4/20 04:50	75.2	↓-2.2
4/20 05:00	74.0	↓-1.2	干潮
4/20 05:10	73.9	↓-0.1
4/20 05:20	74.7	↑0.8
4/20 05:30	76.6	↑1.9
4/20 05:40	79.4	↑2.8
4/20 05:50	83.2	↑3.8
4/20 06:00	87.8	↑4.6
4/20 06:10	93.2	↑5.4
4/20 06:20	99.5	↑6.3
4/20 06:30	106.5	↑7.0
4/20 06:40	114.2	↑7.7
4/20 06:50	122.6	↑8.4
4/20 07:00	131.6	↑9.0
4/20 07:10	141.0	↑9.4
4/20 07:20	151.0	↑10.0
4/20 07:30	161.4	↑10.4
4/20 07:40	172.2	↑10.8
4/20 07:50	183.2	↑11.0
4/20 08:00	194.4	↑11.2
4/20 08:10	205.8	↑11.4
4/20 08:20	217.2	↑11.4
4/20 08:30	228.5	↑11.3
4/20 08:40	239.8	↑11.3
4/20 08:50	250.8	↑11.0
4/20 09:00	261.5	↑10.7
4/20 09:10	271.8	↑10.3
4/20 09:20	281.6	↑9.8
4/20 09:30	290.8	↑9.2
4/20 09:40	299.4	↑8.6
4/20 09:50	307.2	↑7.8
4/20 10:00	314.1	↑6.9
4/20 10:10	320.2	↑6.1
4/20 10:20	325.3	↑5.1
4/20 10:30	329.3	↑4.0
4/20 10:40	332.3	↑3.0
4/20 10:50	334.1	↑1.8
4/20 11:00	334.8	↑0.7	満潮
4/20 11:10	334.3	↓-0.5
4/20 11:20	332.7	↓-1.6
4/20 11:30	329.8	↓-2.9
4/20 11:40	325.8	↓-4.0
4/20 11:50	320.6	↓-5.2
4/20 12:00	314.2	↓-6.4
4/20 12:10	306.8	↓-7.4
4/20 12:20	298.3	↓-8.5
4/20 12:30	288.8	↓-9.5
4/20 12:40	278.4	↓-10.4
4/20 12:50	267.2	↓-11.2
4/20 13:00	255.1	↓-12.1
4/20 13:10	242.3	↓-12.8
4/20 13:20	228.9	↓-13.4
4/20 13:30	215.1	↓-13.8
4/20 13:40	200.7	↓-14.4
4/20 13:50	186.1	↓-14.6
4/20 14:00	171.3	↓-14.8
4/20 14:10	156.3	↓-15.0
4/20 14:20	141.4	↓-14.9
4/20 14:30	126.6	↓-14.8
4/20 14:40	112.1	↓-14.5
4/20 14:50	97.9	↓-14.2
4/20 15:00	84.1	↓-13.8
4/20 15:10	71.0	↓-13.1
4/20 15:20	58.4	↓-12.6
4/20 15:30	46.6	↓-11.8
4/20 15:40	35.7	↓-10.9
4/20 15:50	25.7	↓-10.0
4/20 16:00	16.6	↓-9.1
4/20 16:10	8.6	↓-8.0
4/20 16:20	1.6	↓-7.0
4/20 16:30	-4.2	↓-5.8
4/20 16:40	-8.8	↓-4.6
4/20 16:50	-12.3	↓-3.5
4/20 17:00	-14.6	↓-2.3
4/20 17:10	-15.7	↓-1.1	干潮
4/20 17:20	-15.6	↑0.1
4/20 17:30	-14.4	↑1.2
4/20 17:40	-11.9	↑2.5
4/20 17:50	-8.4	↑3.5
4/20 18:00	-3.8	↑4.6
4/20 18:10	1.9	↑5.7
4/20 18:20	8.6	↑6.7
4/20 18:30	16.3	↑7.7
4/20 18:40	24.9	↑8.6
4/20 18:50	34.4	↑9.5
4/20 19:00	44.7	↑10.3
4/20 19:10	55.8	↑11.1
4/20 19:20	67.6	↑11.8
4/20 19:30	80.0	↑12.4
4/20 19:40	93.1	↑13.1
4/20 19:50	106.7	↑13.6
4/20 20:00	120.7	↑14.0
4/20 20:10	135.1	↑14.4
4/20 20:20	149.8	↑14.7
4/20 20:30	164.7	↑14.9
4/20 20:40	179.8	↑15.1	最大潮位差
4/20 20:50	194.9	↑15.1	最大潮位差
4/20 21:00	209.9	↑15.0
4/20 21:10	224.8	↑14.9
4/20 21:20	239.5	↑14.7
4/20 21:30	253.8	↑14.3
4/20 21:40	267.6	↑13.8
4/20 21:50	281.0	↑13.4
4/20 22:00	293.6	↑12.6
4/20 22:10	305.6	↑12.0
4/20 22:20	316.8	↑11.2
4/20 22:30	327.0	↑10.2
4/20 22:40	336.3	↑9.3
4/20 22:50	344.5	↑8.2
4/20 23:00	351.7	↑7.2
4/20 23:10	357.7	↑6.0
4/20 23:20	362.6	↑4.9
4/20 23:30	366.3	↑3.7
4/20 23:40	368.7	↑2.4
4/20 23:50	369.9	↑1.2	満潮