31 (木)	05:14	09:37	15:05	22:36
	130cm	102cm	153cm	4cm
大潮 出 06:50 入 15:53 出 16:45 入 07:44

根室（北海道）2020年12月31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
12/31 00:00	29.6	↑3.7
12/31 00:10	33.6	↑4.0
12/31 00:20	37.7	↑4.1
12/31 00:30	41.9	↑4.2
12/31 00:40	46.3	↑4.4
12/31 00:50	50.8	↑4.5
12/31 01:00	55.3	↑4.5
12/31 01:10	59.9	↑4.6
12/31 01:20	64.5	↑4.6
12/31 01:30	69.2	↑4.7
12/31 01:40	73.7	↑4.5
12/31 01:50	78.3	↑4.6
12/31 02:00	82.7	↑4.4
12/31 02:10	87.0	↑4.3
12/31 02:20	91.3	↑4.3
12/31 02:30	95.3	↑4.0
12/31 02:40	99.2	↑3.9
12/31 02:50	102.9	↑3.7
12/31 03:00	106.4	↑3.5
12/31 03:10	109.7	↑3.3
12/31 03:20	112.8	↑3.1
12/31 03:30	115.6	↑2.8
12/31 03:40	118.1	↑2.5
12/31 03:50	120.4	↑2.3
12/31 04:00	122.4	↑2.0
12/31 04:10	124.2	↑1.8
12/31 04:20	125.7	↑1.5
12/31 04:30	126.9	↑1.2
12/31 04:40	127.9	↑1.0
12/31 04:50	128.5	↑0.6
12/31 05:00	129.0	↑0.5
12/31 05:10	129.2	↑0.2	満潮
12/31 05:20	129.1	↓-0.1
12/31 05:30	128.8	↓-0.3
12/31 05:40	128.3	↓-0.5
12/31 05:50	127.6	↓-0.7
12/31 06:00	126.8	↓-0.8
12/31 06:10	125.7	↓-1.1
12/31 06:20	124.6	↓-1.1
12/31 06:30	123.3	↓-1.3
12/31 06:40	121.9	↓-1.4
12/31 06:50	120.4	↓-1.5
12/31 07:00	118.8	↓-1.6
12/31 07:10	117.2	↓-1.6
12/31 07:20	115.6	↓-1.6
12/31 07:30	114.0	↓-1.6
12/31 07:40	112.4	↓-1.6
12/31 07:50	110.8	↓-1.6
12/31 08:00	109.3	↓-1.5
12/31 08:10	107.9	↓-1.4
12/31 08:20	106.6	↓-1.3
12/31 08:30	105.4	↓-1.2
12/31 08:40	104.3	↓-1.1
12/31 08:50	103.4	↓-0.9
12/31 09:00	102.6	↓-0.8
12/31 09:10	102.0	↓-0.6
12/31 09:20	101.6	↓-0.4
12/31 09:30	101.4	↓-0.2	干潮
12/31 09:40	101.4	0
12/31 09:50	101.5	↑0.1
12/31 10:00	101.9	↑0.4
12/31 10:10	102.5	↑0.6
12/31 10:20	103.3	↑0.8
12/31 10:30	104.2	↑0.9
12/31 10:40	105.4	↑1.2
12/31 10:50	106.7	↑1.3
12/31 11:00	108.3	↑1.6
12/31 11:10	110.0	↑1.7
12/31 11:20	111.8	↑1.8
12/31 11:30	113.8	↑2.0
12/31 11:40	115.9	↑2.1
12/31 11:50	118.1	↑2.2
12/31 12:00	120.4	↑2.3
12/31 12:10	122.8	↑2.4
12/31 12:20	125.2	↑2.4
12/31 12:30	127.6	↑2.4
12/31 12:40	130.1	↑2.5
12/31 12:50	132.5	↑2.4
12/31 13:00	134.9	↑2.4
12/31 13:10	137.2	↑2.3
12/31 13:20	139.5	↑2.3
12/31 13:30	141.6	↑2.1
12/31 13:40	143.6	↑2.0
12/31 13:50	145.5	↑1.9
12/31 14:00	147.2	↑1.7
12/31 14:10	148.7	↑1.5
12/31 14:20	150.0	↑1.3
12/31 14:30	151.0	↑1.0
12/31 14:40	151.8	↑0.8
12/31 14:50	152.4	↑0.6
12/31 15:00	152.6	↑0.2	満潮
12/31 15:10	152.6	0
12/31 15:20	152.3	↓-0.3
12/31 15:30	151.7	↓-0.6
12/31 15:40	150.8	↓-0.9
12/31 15:50	149.5	↓-1.3
12/31 16:00	148.0	↓-1.5
12/31 16:10	146.1	↓-1.9
12/31 16:20	143.9	↓-2.2
12/31 16:30	141.4	↓-2.5
12/31 16:40	138.6	↓-2.8
12/31 16:50	135.5	↓-3.1
12/31 17:00	132.1	↓-3.4
12/31 17:10	128.5	↓-3.6
12/31 17:20	124.5	↓-4.0
12/31 17:30	120.4	↓-4.1
12/31 17:40	116.0	↓-4.4
12/31 17:50	111.5	↓-4.5
12/31 18:00	106.7	↓-4.8
12/31 18:10	101.8	↓-4.9
12/31 18:20	96.7	↓-5.1
12/31 18:30	91.6	↓-5.1
12/31 18:40	86.4	↓-5.2
12/31 18:50	81.1	↓-5.3	最大潮位差
12/31 19:00	75.8	↓-5.3	最大潮位差
12/31 19:10	70.5	↓-5.3	最大潮位差
12/31 19:20	65.2	↓-5.3	最大潮位差
12/31 19:30	60.0	↓-5.2
12/31 19:40	54.8	↓-5.2
12/31 19:50	49.8	↓-5.0
12/31 20:00	44.9	↓-4.9
12/31 20:10	40.2	↓-4.7
12/31 20:20	35.7	↓-4.5
12/31 20:30	31.4	↓-4.3
12/31 20:40	27.3	↓-4.1
12/31 20:50	23.5	↓-3.8
12/31 21:00	20.0	↓-3.5
12/31 21:10	16.7	↓-3.3
12/31 21:20	13.8	↓-2.9
12/31 21:30	11.3	↓-2.5
12/31 21:40	9.0	↓-2.3
12/31 21:50	7.2	↓-1.8
12/31 22:00	5.7	↓-1.5
12/31 22:10	4.6	↓-1.1
12/31 22:20	3.8	↓-0.8
12/31 22:30	3.4	↓-0.4	干潮
12/31 22:40	3.5	↑0.1
12/31 22:50	3.9	↑0.4
12/31 23:00	4.6	↑0.7
12/31 23:10	5.8	↑1.2
12/31 23:20	7.3	↑1.5
12/31 23:30	9.1	↑1.8
12/31 23:40	11.3	↑2.2
12/31 23:50	13.8	↑2.5