20 (水)	04:38	09:37	15:20	22:20
	128cm	74cm	149cm	5cm
大潮 出 06:25 入 17:13 出 17:55 入 06:52

苫小牧（北海道）2019年02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
2/20 00:00	32.8	↑4.4
2/20 00:10	37.4	↑4.6
2/20 00:20	42.2	↑4.8
2/20 00:30	47.3	↑5.1
2/20 00:40	52.5	↑5.2
2/20 00:50	57.8	↑5.3
2/20 01:00	63.2	↑5.4
2/20 01:10	68.5	↑5.3
2/20 01:20	73.9	↑5.4
2/20 01:30	79.1	↑5.2
2/20 01:40	84.2	↑5.1
2/20 01:50	89.1	↑4.9
2/20 02:00	93.8	↑4.7
2/20 02:10	98.2	↑4.4
2/20 02:20	102.3	↑4.1
2/20 02:30	106.1	↑3.8
2/20 02:40	109.6	↑3.5
2/20 02:50	112.8	↑3.2
2/20 03:00	115.6	↑2.8
2/20 03:10	118.1	↑2.5
2/20 03:20	120.2	↑2.1
2/20 03:30	122.1	↑1.9
2/20 03:40	123.7	↑1.6
2/20 03:50	125.0	↑1.3
2/20 04:00	126.0	↑1.0
2/20 04:10	126.8	↑0.8
2/20 04:20	127.3	↑0.5
2/20 04:30	127.6	↑0.3	満潮
2/20 04:40	127.6	0
2/20 04:50	127.4	↓-0.2
2/20 05:00	127.0	↓-0.4
2/20 05:10	126.3	↓-0.7
2/20 05:20	125.4	↓-0.9
2/20 05:30	124.2	↓-1.2
2/20 05:40	122.8	↓-1.4
2/20 05:50	121.1	↓-1.7
2/20 06:00	119.2	↓-1.9
2/20 06:10	117.0	↓-2.2
2/20 06:20	114.6	↓-2.4
2/20 06:30	112.0	↓-2.6
2/20 06:40	109.3	↓-2.7
2/20 06:50	106.4	↓-2.9
2/20 07:00	103.4	↓-3.0
2/20 07:10	100.3	↓-3.1
2/20 07:20	97.2	↓-3.1
2/20 07:30	94.2	↓-3.0
2/20 07:40	91.2	↓-3.0
2/20 07:50	88.4	↓-2.8
2/20 08:00	85.7	↓-2.7
2/20 08:10	83.3	↓-2.4
2/20 08:20	81.0	↓-2.3
2/20 08:30	79.0	↓-2.0
2/20 08:40	77.3	↓-1.7
2/20 08:50	75.9	↓-1.4
2/20 09:00	74.8	↓-1.1
2/20 09:10	73.9	↓-0.9
2/20 09:20	73.4	↓-0.5
2/20 09:30	73.1	↓-0.3	干潮
2/20 09:40	73.1	0
2/20 09:50	73.3	↑0.2
2/20 10:00	73.8	↑0.5
2/20 10:10	74.4	↑0.6
2/20 10:20	75.3	↑0.9
2/20 10:30	76.4	↑1.1
2/20 10:40	77.7	↑1.3
2/20 10:50	79.2	↑1.5
2/20 11:00	80.8	↑1.6
2/20 11:10	82.7	↑1.9
2/20 11:20	84.8	↑2.1
2/20 11:30	87.0	↑2.2
2/20 11:40	89.5	↑2.5
2/20 11:50	92.2	↑2.7
2/20 12:00	95.0	↑2.8
2/20 12:10	98.1	↑3.1
2/20 12:20	101.3	↑3.2
2/20 12:30	104.7	↑3.4
2/20 12:40	108.2	↑3.5
2/20 12:50	111.9	↑3.7
2/20 13:00	115.5	↑3.6
2/20 13:10	119.2	↑3.7
2/20 13:20	122.9	↑3.7
2/20 13:30	126.5	↑3.6
2/20 13:40	130.0	↑3.5
2/20 13:50	133.3	↑3.3
2/20 14:00	136.3	↑3.0
2/20 14:10	139.1	↑2.8
2/20 14:20	141.6	↑2.5
2/20 14:30	143.7	↑2.1
2/20 14:40	145.5	↑1.8
2/20 14:50	146.8	↑1.3
2/20 15:00	147.8	↑1.0
2/20 15:10	148.4	↑0.6	満潮
2/20 15:20	148.5	↑0.1	満潮
2/20 15:30	148.3	↓-0.2
2/20 15:40	147.7	↓-0.6
2/20 15:50	146.7	↓-1.0
2/20 16:00	145.4	↓-1.3
2/20 16:10	143.8	↓-1.6
2/20 16:20	141.8	↓-2.0
2/20 16:30	139.6	↓-2.2
2/20 16:40	137.1	↓-2.5
2/20 16:50	134.4	↓-2.7
2/20 17:00	131.3	↓-3.1
2/20 17:10	128.1	↓-3.2
2/20 17:20	124.5	↓-3.6
2/20 17:30	120.8	↓-3.7
2/20 17:40	116.8	↓-4.0
2/20 17:50	112.5	↓-4.3
2/20 18:00	108.0	↓-4.5
2/20 18:10	103.3	↓-4.7
2/20 18:20	98.3	↓-5.0
2/20 18:30	93.1	↓-5.2
2/20 18:40	87.8	↓-5.3
2/20 18:50	82.2	↓-5.6
2/20 19:00	76.6	↓-5.6
2/20 19:10	70.9	↓-5.7
2/20 19:20	65.1	↓-5.8	最大潮位差
2/20 19:30	59.4	↓-5.7
2/20 19:40	53.7	↓-5.7
2/20 19:50	48.1	↓-5.6
2/20 20:00	42.7	↓-5.4
2/20 20:10	37.5	↓-5.2
2/20 20:20	32.6	↓-4.9
2/20 20:30	28.0	↓-4.6
2/20 20:40	23.8	↓-4.2
2/20 20:50	19.9	↓-3.9
2/20 21:00	16.5	↓-3.4
2/20 21:10	13.4	↓-3.1
2/20 21:20	10.8	↓-2.6
2/20 21:30	8.7	↓-2.1
2/20 21:40	6.9	↓-1.8
2/20 21:50	5.6	↓-1.3
2/20 22:00	4.7	↓-0.9
2/20 22:10	4.2	↓-0.5	干潮
2/20 22:20	4.1	↓-0.1	干潮
2/20 22:30	4.3	↑0.2
2/20 22:40	4.9	↑0.6
2/20 22:50	5.8	↑0.9
2/20 23:00	7.1	↑1.3
2/20 23:10	8.7	↑1.6
2/20 23:20	10.6	↑1.9
2/20 23:30	12.9	↑2.3
2/20 23:40	15.4	↑2.5
2/20 23:50	18.4	↑3.0