1 (月)	06:10	11:29	17:11	-
	128cm	72cm	139cm	-
中潮 出 06:48 入 16:49 出 20:41 入 08:57

苫小牧（北海道）2021年02月1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
2/1 00:00	7.9	↑1.0
2/1 00:10	9.2	↑1.3
2/1 00:20	10.8	↑1.6
2/1 00:30	12.7	↑1.9
2/1 00:40	14.9	↑2.2
2/1 00:50	17.4	↑2.5
2/1 01:00	20.1	↑2.7
2/1 01:10	23.1	↑3.0
2/1 01:20	26.3	↑3.2
2/1 01:30	29.8	↑3.5
2/1 01:40	33.6	↑3.8
2/1 01:50	37.6	↑4.0
2/1 02:00	41.8	↑4.2
2/1 02:10	46.2	↑4.4
2/1 02:20	50.9	↑4.7
2/1 02:30	55.7	↑4.8
2/1 02:40	60.7	↑5.0
2/1 02:50	65.8	↑5.1
2/1 03:00	70.9	↑5.1
2/1 03:10	76.1	↑5.2	最大潮位差
2/1 03:20	81.2	↑5.1
2/1 03:30	86.2	↑5.0
2/1 03:40	91.1	↑4.9
2/1 03:50	95.8	↑4.7
2/1 04:00	100.2	↑4.4
2/1 04:10	104.4	↑4.2
2/1 04:20	108.3	↑3.9
2/1 04:30	111.8	↑3.5
2/1 04:40	114.9	↑3.1
2/1 04:50	117.7	↑2.8
2/1 05:00	120.1	↑2.4
2/1 05:10	122.2	↑2.1
2/1 05:20	123.8	↑1.6
2/1 05:30	125.2	↑1.4
2/1 05:40	126.1	↑0.9
2/1 05:50	126.8	↑0.7
2/1 06:00	127.2	↑0.4	満潮
2/1 06:10	127.3	↑0.1	満潮
2/1 06:20	127.2	↓-0.1
2/1 06:30	126.8	↓-0.4
2/1 06:40	126.2	↓-0.6
2/1 06:50	125.5	↓-0.7
2/1 07:00	124.5	↓-1.0
2/1 07:10	123.4	↓-1.1
2/1 07:20	122.0	↓-1.4
2/1 07:30	120.5	↓-1.5
2/1 07:40	118.8	↓-1.7
2/1 07:50	117.0	↓-1.8
2/1 08:00	114.9	↓-2.1
2/1 08:10	112.7	↓-2.2
2/1 08:20	110.3	↓-2.4
2/1 08:30	107.8	↓-2.5
2/1 08:40	105.1	↓-2.7
2/1 08:50	102.3	↓-2.8
2/1 09:00	99.5	↓-2.8
2/1 09:10	96.6	↓-2.9
2/1 09:20	93.6	↓-3.0
2/1 09:30	90.7	↓-2.9
2/1 09:40	87.9	↓-2.8
2/1 09:50	85.2	↓-2.7
2/1 10:00	82.7	↓-2.5
2/1 10:10	80.3	↓-2.4
2/1 10:20	78.2	↓-2.1
2/1 10:30	76.3	↓-1.9
2/1 10:40	74.7	↓-1.6
2/1 10:50	73.4	↓-1.3
2/1 11:00	72.4	↓-1.0
2/1 11:10	71.7	↓-0.7
2/1 11:20	71.3	↓-0.4	干潮
2/1 11:30	71.2	↓-0.1
2/1 11:40	71.4	↑0.2
2/1 11:50	71.8	↑0.4
2/1 12:00	72.5	↑0.7
2/1 12:10	73.4	↑0.9
2/1 12:20	74.6	↑1.2
2/1 12:30	75.9	↑1.3
2/1 12:40	77.3	↑1.4
2/1 12:50	79.0	↑1.7
2/1 13:00	80.8	↑1.8
2/1 13:10	82.7	↑1.9
2/1 13:20	84.7	↑2.0
2/1 13:30	86.9	↑2.2
2/1 13:40	89.2	↑2.3
2/1 13:50	91.7	↑2.5
2/1 14:00	94.2	↑2.5
2/1 14:10	96.9	↑2.7
2/1 14:20	99.7	↑2.8
2/1 14:30	102.7	↑3.0
2/1 14:40	105.7	↑3.0
2/1 14:50	108.8	↑3.1
2/1 15:00	111.9	↑3.1
2/1 15:10	115.0	↑3.1
2/1 15:20	118.1	↑3.1
2/1 15:30	121.2	↑3.1
2/1 15:40	124.1	↑2.9
2/1 15:50	126.9	↑2.8
2/1 16:00	129.4	↑2.5
2/1 16:10	131.8	↑2.4
2/1 16:20	133.8	↑2.0
2/1 16:30	135.5	↑1.7
2/1 16:40	136.9	↑1.4
2/1 16:50	137.9	↑1.0
2/1 17:00	138.5	↑0.6
2/1 17:10	138.7	↑0.2	満潮
2/1 17:20	138.5	↓-0.2
2/1 17:30	138.0	↓-0.5
2/1 17:40	137.0	↓-1.0
2/1 17:50	135.7	↓-1.3
2/1 18:00	134.1	↓-1.6
2/1 18:10	132.2	↓-1.9
2/1 18:20	130.0	↓-2.2
2/1 18:30	127.5	↓-2.5
2/1 18:40	124.8	↓-2.7
2/1 18:50	121.9	↓-2.9
2/1 19:00	118.8	↓-3.1
2/1 19:10	115.6	↓-3.2
2/1 19:20	112.2	↓-3.4
2/1 19:30	108.6	↓-3.6
2/1 19:40	105.0	↓-3.6
2/1 19:50	101.2	↓-3.8
2/1 20:00	97.2	↓-4.0
2/1 20:10	93.1	↓-4.1
2/1 20:20	89.0	↓-4.1
2/1 20:30	84.7	↓-4.3
2/1 20:40	80.3	↓-4.4
2/1 20:50	75.8	↓-4.5
2/1 21:00	71.2	↓-4.6
2/1 21:10	66.6	↓-4.6
2/1 21:20	62.0	↓-4.6
2/1 21:30	57.4	↓-4.6
2/1 21:40	52.9	↓-4.5
2/1 21:50	48.5	↓-4.4
2/1 22:00	44.3	↓-4.2
2/1 22:10	40.2	↓-4.1
2/1 22:20	36.4	↓-3.8
2/1 22:30	32.8	↓-3.6
2/1 22:40	29.6	↓-3.2
2/1 22:50	26.7	↓-2.9
2/1 23:00	24.1	↓-2.6
2/1 23:10	22.0	↓-2.1
2/1 23:20	20.2	↓-1.8
2/1 23:30	18.8	↓-1.4
2/1 23:40	17.9	↓-0.9
2/1 23:50	17.3	↓-0.6