20 (火)	04:08	08:46	14:21	21:30
	123cm	85cm	144cm	4cm
大潮 出 06:24 入 17:13 出 16:22 入 05:45

苫小牧（北海道）2046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	55.1	↑4.7
2/20 00:10	59.9	↑4.8
2/20 00:20	64.7	↑4.8
2/20 00:30	69.4	↑4.7
2/20 00:40	74.0	↑4.6
2/20 00:50	78.6	↑4.6
2/20 01:00	83.0	↑4.4
2/20 01:10	87.2	↑4.2
2/20 01:20	91.2	↑4.0
2/20 01:30	95.0	↑3.8
2/20 01:40	98.6	↑3.6
2/20 01:50	101.9	↑3.3
2/20 02:00	104.9	↑3.0
2/20 02:10	107.7	↑2.8
2/20 02:20	110.3	↑2.6
2/20 02:30	112.6	↑2.3
2/20 02:40	114.6	↑2.0
2/20 02:50	116.4	↑1.8
2/20 03:00	118.0	↑1.6
2/20 03:10	119.4	↑1.4
2/20 03:20	120.5	↑1.1
2/20 03:30	121.4	↑0.9
2/20 03:40	122.1	↑0.7
2/20 03:50	122.6	↑0.5
2/20 04:00	122.9	↑0.3	満潮
2/20 04:10	123.0	↑0.1
2/20 04:20	122.8	↓-0.2
2/20 04:30	122.4	↓-0.4
2/20 04:40	121.8	↓-0.6
2/20 04:50	120.9	↓-0.9
2/20 05:00	119.8	↓-1.1
2/20 05:10	118.5	↓-1.3
2/20 05:20	117.0	↓-1.5
2/20 05:30	115.2	↓-1.8
2/20 05:40	113.3	↓-1.9
2/20 05:50	111.3	↓-2.0
2/20 06:00	109.1	↓-2.2
2/20 06:10	106.9	↓-2.2
2/20 06:20	104.6	↓-2.3
2/20 06:30	102.3	↓-2.3
2/20 06:40	100.0	↓-2.3
2/20 06:50	97.8	↓-2.2
2/20 07:00	95.6	↓-2.2
2/20 07:10	93.6	↓-2.0
2/20 07:20	91.8	↓-1.8
2/20 07:30	90.1	↓-1.7
2/20 07:40	88.6	↓-1.5
2/20 07:50	87.3	↓-1.3
2/20 08:00	86.3	↓-1.0
2/20 08:10	85.4	↓-0.9
2/20 08:20	84.8	↓-0.6
2/20 08:30	84.4	↓-0.4
2/20 08:40	84.2	↓-0.2	干潮
2/20 08:50	84.2	0
2/20 09:00	84.4	↑0.2
2/20 09:10	84.8	↑0.4
2/20 09:20	85.4	↑0.6
2/20 09:30	86.1	↑0.7
2/20 09:40	87.0	↑0.9
2/20 09:50	88.0	↑1.0
2/20 10:00	89.3	↑1.3
2/20 10:10	90.6	↑1.3
2/20 10:20	92.2	↑1.6
2/20 10:30	93.9	↑1.7
2/20 10:40	95.8	↑1.9
2/20 10:50	97.9	↑2.1
2/20 11:00	100.1	↑2.2
2/20 11:10	102.5	↑2.4
2/20 11:20	105.1	↑2.6
2/20 11:30	107.7	↑2.6
2/20 11:40	110.5	↑2.8
2/20 11:50	113.4	↑2.9
2/20 12:00	116.4	↑3.0
2/20 12:10	119.4	↑3.0
2/20 12:20	122.3	↑2.9
2/20 12:30	125.3	↑3.0
2/20 12:40	128.1	↑2.8
2/20 12:50	130.8	↑2.7
2/20 13:00	133.3	↑2.5
2/20 13:10	135.6	↑2.3
2/20 13:20	137.7	↑2.1
2/20 13:30	139.5	↑1.8
2/20 13:40	141.0	↑1.5
2/20 13:50	142.2	↑1.2
2/20 14:00	143.0	↑0.8
2/20 14:10	143.5	↑0.5
2/20 14:20	143.7	↑0.2	満潮
2/20 14:30	143.5	↓-0.2
2/20 14:40	143.0	↓-0.5
2/20 14:50	142.2	↓-0.8
2/20 15:00	141.0	↓-1.2
2/20 15:10	139.6	↓-1.4
2/20 15:20	137.9	↓-1.7
2/20 15:30	135.8	↓-2.1
2/20 15:40	133.6	↓-2.2
2/20 15:50	131.0	↓-2.6
2/20 16:00	128.2	↓-2.8
2/20 16:10	125.2	↓-3.0
2/20 16:20	121.9	↓-3.3
2/20 16:30	118.4	↓-3.5
2/20 16:40	114.6	↓-3.8
2/20 16:50	110.6	↓-4.0
2/20 17:00	106.4	↓-4.2
2/20 17:10	102.0	↓-4.4
2/20 17:20	97.3	↓-4.7
2/20 17:30	92.4	↓-4.9
2/20 17:40	87.4	↓-5.0
2/20 17:50	82.2	↓-5.2
2/20 18:00	76.8	↓-5.4
2/20 18:10	71.4	↓-5.4
2/20 18:20	65.9	↓-5.5	最大潮位差
2/20 18:30	60.5	↓-5.4
2/20 18:40	55.0	↓-5.5	最大潮位差
2/20 18:50	49.7	↓-5.3
2/20 19:00	44.4	↓-5.3
2/20 19:10	39.4	↓-5.0
2/20 19:20	34.6	↓-4.8
2/20 19:30	30.0	↓-4.6
2/20 19:40	25.7	↓-4.3
2/20 19:50	21.8	↓-3.9
2/20 20:00	18.2	↓-3.6
2/20 20:10	15.0	↓-3.2
2/20 20:20	12.2	↓-2.8
2/20 20:30	9.8	↓-2.4
2/20 20:40	7.8	↓-2.0
2/20 20:50	6.1	↓-1.7
2/20 21:00	4.9	↓-1.2
2/20 21:10	4.0	↓-0.9
2/20 21:20	3.5	↓-0.5	干潮
2/20 21:30	3.4	↓-0.1	干潮
2/20 21:40	3.6	↑0.2
2/20 21:50	4.2	↑0.6
2/20 22:00	5.1	↑0.9
2/20 22:10	6.3	↑1.2
2/20 22:20	7.8	↑1.5
2/20 22:30	9.7	↑1.9
2/20 22:40	11.9	↑2.2
2/20 22:50	14.5	↑2.6
2/20 23:00	17.3	↑2.8
2/20 23:10	20.5	↑3.2
2/20 23:20	24.0	↑3.5
2/20 23:30	27.7	↑3.7
2/20 23:40	31.8	↑4.1
2/20 23:50	36.1	↑4.3