31 (土)	05:47	10:46	16:22	23:21
	129cm	79cm	142cm	15cm
中潮 出 07:03 入 16:12 出 19:31 入 08:33

苫小牧（北海道）2050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	15.7	↑2.0
12/31 00:10	18.0	↑2.3
12/31 00:20	20.6	↑2.6
12/31 00:30	23.5	↑2.9
12/31 00:40	26.7	↑3.2
12/31 00:50	30.2	↑3.5
12/31 01:00	34.0	↑3.8
12/31 01:10	38.1	↑4.1
12/31 01:20	42.5	↑4.4
12/31 01:30	47.0	↑4.5
12/31 01:40	51.9	↑4.9
12/31 01:50	56.8	↑4.9
12/31 02:00	61.9	↑5.1
12/31 02:10	67.1	↑5.2
12/31 02:20	72.4	↑5.3	最大潮位差
12/31 02:30	77.5	↑5.1
12/31 02:40	82.6	↑5.1
12/31 02:50	87.6	↑5.0
12/31 03:00	92.4	↑4.8
12/31 03:10	96.9	↑4.5
12/31 03:20	101.2	↑4.3
12/31 03:30	105.2	↑4.0
12/31 03:40	108.9	↑3.7
12/31 03:50	112.2	↑3.3
12/31 04:00	115.2	↑3.0
12/31 04:10	117.8	↑2.6
12/31 04:20	120.1	↑2.3
12/31 04:30	122.1	↑2.0
12/31 04:40	123.8	↑1.7
12/31 04:50	125.1	↑1.3
12/31 05:00	126.3	↑1.2
12/31 05:10	127.1	↑0.8
12/31 05:20	127.8	↑0.7
12/31 05:30	128.2	↑0.4
12/31 05:40	128.4	↑0.2	満潮
12/31 05:50	128.4	0
12/31 06:00	128.3	↓-0.1
12/31 06:10	127.9	↓-0.4
12/31 06:20	127.3	↓-0.6
12/31 06:30	126.5	↓-0.8
12/31 06:40	125.5	↓-1.0
12/31 06:50	124.3	↓-1.2
12/31 07:00	122.9	↓-1.4
12/31 07:10	121.2	↓-1.7
12/31 07:20	119.3	↓-1.9
12/31 07:30	117.2	↓-2.1
12/31 07:40	114.9	↓-2.3
12/31 07:50	112.4	↓-2.5
12/31 08:00	109.8	↓-2.6
12/31 08:10	107.0	↓-2.8
12/31 08:20	104.2	↓-2.8
12/31 08:30	101.3	↓-2.9
12/31 08:40	98.5	↓-2.8
12/31 08:50	95.8	↓-2.7
12/31 09:00	93.1	↓-2.7
12/31 09:10	90.6	↓-2.5
12/31 09:20	88.3	↓-2.3
12/31 09:30	86.1	↓-2.2
12/31 09:40	84.3	↓-1.8
12/31 09:50	82.7	↓-1.6
12/31 10:00	81.4	↓-1.3
12/31 10:10	80.3	↓-1.1
12/31 10:20	79.6	↓-0.7
12/31 10:30	79.1	↓-0.5
12/31 10:40	78.8	↓-0.3	干潮
12/31 10:50	78.9	↑0.1
12/31 11:00	79.1	↑0.2
12/31 11:10	79.5	↑0.4
12/31 11:20	80.1	↑0.6
12/31 11:30	80.9	↑0.8
12/31 11:40	81.9	↑1.0
12/31 11:50	83.0	↑1.1
12/31 12:00	84.2	↑1.2
12/31 12:10	85.6	↑1.4
12/31 12:20	87.2	↑1.6
12/31 12:30	88.8	↑1.6
12/31 12:40	90.7	↑1.9
12/31 12:50	92.7	↑2.0
12/31 13:00	94.8	↑2.1
12/31 13:10	97.2	↑2.4
12/31 13:20	99.7	↑2.5
12/31 13:30	102.3	↑2.6
12/31 13:40	105.2	↑2.9
12/31 13:50	108.1	↑2.9
12/31 14:00	111.1	↑3.0
12/31 14:10	114.2	↑3.1
12/31 14:20	117.4	↑3.2
12/31 14:30	120.5	↑3.1
12/31 14:40	123.5	↑3.0
12/31 14:50	126.5	↑3.0
12/31 15:00	129.3	↑2.8
12/31 15:10	131.9	↑2.6
12/31 15:20	134.2	↑2.3
12/31 15:30	136.2	↑2.0
12/31 15:40	137.9	↑1.7
12/31 15:50	139.3	↑1.4
12/31 16:00	140.2	↑0.9
12/31 16:10	140.8	↑0.6
12/31 16:20	141.0	↑0.2	満潮
12/31 16:30	140.9	↓-0.1
12/31 16:40	140.3	↓-0.6
12/31 16:50	139.4	↓-0.9
12/31 17:00	138.2	↓-1.2
12/31 17:10	136.7	↓-1.5
12/31 17:20	134.9	↓-1.8
12/31 17:30	132.9	↓-2.0
12/31 17:40	130.6	↓-2.3
12/31 17:50	128.1	↓-2.5
12/31 18:00	125.4	↓-2.7
12/31 18:10	122.6	↓-2.8
12/31 18:20	119.5	↓-3.1
12/31 18:30	116.3	↓-3.2
12/31 18:40	112.9	↓-3.4
12/31 18:50	109.4	↓-3.5
12/31 19:00	105.6	↓-3.8
12/31 19:10	101.7	↓-3.9
12/31 19:20	97.6	↓-4.1
12/31 19:30	93.4	↓-4.2
12/31 19:40	88.9	↓-4.5
12/31 19:50	84.4	↓-4.5
12/31 20:00	79.6	↓-4.8
12/31 20:10	74.8	↓-4.8
12/31 20:20	69.9	↓-4.9
12/31 20:30	65.0	↓-4.9
12/31 20:40	60.0	↓-5.0
12/31 20:50	55.2	↓-4.8
12/31 21:00	50.4	↓-4.8
12/31 21:10	45.8	↓-4.6
12/31 21:20	41.3	↓-4.5
12/31 21:30	37.2	↓-4.1
12/31 21:40	33.3	↓-3.9
12/31 21:50	29.7	↓-3.6
12/31 22:00	26.5	↓-3.2
12/31 22:10	23.6	↓-2.9
12/31 22:20	21.2	↓-2.4
12/31 22:30	19.1	↓-2.1
12/31 22:40	17.5	↓-1.6
12/31 22:50	16.2	↓-1.3
12/31 23:00	15.4	↓-0.8
12/31 23:10	14.8	↓-0.6
12/31 23:20	14.7	↓-0.1	干潮
12/31 23:30	14.9	↑0.2
12/31 23:40	15.3	↑0.4
12/31 23:50	16.1	↑0.8