20 (日)	09:00	04:00	-	16:35
	134cm	106cm	-	32cm
小潮 出 05:31 入 18:41 出 00:37 入 10:15 潮干狩り ○ 15:04～18:03

高知（高知）2025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	132.7	↓-1.3
4/20 00:10	131.3	↓-1.4
4/20 00:20	129.8	↓-1.5
4/20 00:30	128.2	↓-1.6
4/20 00:40	126.6	↓-1.6
4/20 00:50	125.0	↓-1.6
4/20 01:00	123.3	↓-1.7
4/20 01:10	121.7	↓-1.6
4/20 01:20	120.0	↓-1.7
4/20 01:30	118.4	↓-1.6
4/20 01:40	116.9	↓-1.5
4/20 01:50	115.4	↓-1.5
4/20 02:00	114.0	↓-1.4
4/20 02:10	112.7	↓-1.3
4/20 02:20	111.4	↓-1.3
4/20 02:30	110.3	↓-1.1
4/20 02:40	109.2	↓-1.1
4/20 02:50	108.3	↓-0.9
4/20 03:00	107.5	↓-0.8
4/20 03:10	106.7	↓-0.8
4/20 03:20	106.2	↓-0.5
4/20 03:30	105.7	↓-0.5
4/20 03:40	105.4	↓-0.3
4/20 03:50	105.2	↓-0.2	干潮
4/20 04:00	105.1	↓-0.1	干潮
4/20 04:10	105.2	↑0.1
4/20 04:20	105.4	↑0.2
4/20 04:30	105.8	↑0.4
4/20 04:40	106.3	↑0.5
4/20 04:50	107.0	↑0.7
4/20 05:00	107.8	↑0.8
4/20 05:10	108.7	↑0.9
4/20 05:20	109.7	↑1.0
4/20 05:30	110.8	↑1.1
4/20 05:40	112.0	↑1.2
4/20 05:50	113.3	↑1.3
4/20 06:00	114.7	↑1.4
4/20 06:10	116.1	↑1.4
4/20 06:20	117.5	↑1.4
4/20 06:30	119.0	↑1.5
4/20 06:40	120.5	↑1.5
4/20 06:50	122.0	↑1.5
4/20 07:00	123.4	↑1.4
4/20 07:10	124.8	↑1.4
4/20 07:20	126.1	↑1.3
4/20 07:30	127.4	↑1.3
4/20 07:40	128.6	↑1.2
4/20 07:50	129.6	↑1.0
4/20 08:00	130.6	↑1.0
4/20 08:10	131.4	↑0.8
4/20 08:20	132.2	↑0.8
4/20 08:30	132.7	↑0.5
4/20 08:40	133.1	↑0.4
4/20 08:50	133.4	↑0.3	満潮
4/20 09:00	133.4	0	満潮
4/20 09:10	133.3	↓-0.1
4/20 09:20	133.0	↓-0.3
4/20 09:30	132.5	↓-0.5
4/20 09:40	131.8	↓-0.7
4/20 09:50	130.8	↓-1.0
4/20 10:00	129.7	↓-1.1
4/20 10:10	128.3	↓-1.4
4/20 10:20	126.7	↓-1.6
4/20 10:30	124.9	↓-1.8
4/20 10:40	122.8	↓-2.1
4/20 10:50	120.6	↓-2.2
4/20 11:00	118.1	↓-2.5
4/20 11:10	115.5	↓-2.6
4/20 11:20	112.6	↓-2.9
4/20 11:30	109.6	↓-3.0
4/20 11:40	106.5	↓-3.1
4/20 11:50	103.2	↓-3.3
4/20 12:00	99.8	↓-3.4
4/20 12:10	96.3	↓-3.5
4/20 12:20	92.8	↓-3.5
4/20 12:30	89.2	↓-3.6	最大潮位差
4/20 12:40	85.6	↓-3.6	最大潮位差
4/20 12:50	82.0	↓-3.6	最大潮位差
4/20 13:00	78.4	↓-3.6	最大潮位差
4/20 13:10	74.8	↓-3.6	最大潮位差
4/20 13:20	71.3	↓-3.5
4/20 13:30	67.9	↓-3.4
4/20 13:40	64.5	↓-3.4
4/20 13:50	61.3	↓-3.2
4/20 14:00	58.1	↓-3.2
4/20 14:10	55.1	↓-3.0
4/20 14:20	52.3	↓-2.8
4/20 14:30	49.6	↓-2.7
4/20 14:40	47.0	↓-2.6
4/20 14:50	44.6	↓-2.4
4/20 15:00	42.4	↓-2.2
4/20 15:10	40.4	↓-2.0
4/20 15:20	38.6	↓-1.8
4/20 15:30	36.9	↓-1.7
4/20 15:40	35.5	↓-1.4
4/20 15:50	34.3	↓-1.2
4/20 16:00	33.3	↓-1.0
4/20 16:10	32.6	↓-0.7
4/20 16:20	32.1	↓-0.5
4/20 16:30	31.9	↓-0.2	干潮
4/20 16:40	31.9	0
4/20 16:50	32.2	↑0.3
4/20 17:00	32.7	↑0.5
4/20 17:10	33.5	↑0.8
4/20 17:20	34.5	↑1.0
4/20 17:30	35.8	↑1.3
4/20 17:40	37.4	↑1.6
4/20 17:50	39.1	↑1.7
4/20 18:00	41.1	↑2.0
4/20 18:10	43.4	↑2.3
4/20 18:20	45.8	↑2.4
4/20 18:30	48.4	↑2.6
4/20 18:40	51.1	↑2.7
4/20 18:50	54.0	↑2.9
4/20 19:00	57.1	↑3.1
4/20 19:10	60.3	↑3.2
4/20 19:20	63.5	↑3.2
4/20 19:30	66.9	↑3.4
4/20 19:40	70.3	↑3.4
4/20 19:50	73.8	↑3.5
4/20 20:00	77.3	↑3.5
4/20 20:10	80.8	↑3.5
4/20 20:20	84.3	↑3.5
4/20 20:30	87.8	↑3.5
4/20 20:40	91.3	↑3.5
4/20 20:50	94.7	↑3.4
4/20 21:00	98.1	↑3.4
4/20 21:10	101.4	↑3.3
4/20 21:20	104.6	↑3.2
4/20 21:30	107.7	↑3.1
4/20 21:40	110.6	↑2.9
4/20 21:50	113.4	↑2.8
4/20 22:00	116.1	↑2.7
4/20 22:10	118.6	↑2.5
4/20 22:20	120.9	↑2.3
4/20 22:30	123.0	↑2.1
4/20 22:40	125.0	↑2.0
4/20 22:50	126.7	↑1.7
4/20 23:00	128.2	↑1.5
4/20 23:10	129.5	↑1.3
4/20 23:20	130.6	↑1.1
4/20 23:30	131.5	↑0.9
4/20 23:40	132.1	↑0.6
4/20 23:50	132.6	↑0.5