31 (水)	06:33	11:19	16:43	23:41
	126cm	87cm	138cm	13cm
中潮 出 07:03 入 16:12 出 09:12 入 19:44

苫小牧（北海道）2008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	10.7	↑1.3
12/31 00:10	12.3	↑1.6
12/31 00:20	14.1	↑1.8
12/31 00:30	16.2	↑2.1
12/31 00:40	18.5	↑2.3
12/31 00:50	21.0	↑2.5
12/31 01:00	23.8	↑2.8
12/31 01:10	26.8	↑3.0
12/31 01:20	30.0	↑3.2
12/31 01:30	33.5	↑3.5
12/31 01:40	37.1	↑3.6
12/31 01:50	41.0	↑3.9
12/31 02:00	45.1	↑4.1
12/31 02:10	49.4	↑4.3
12/31 02:20	53.8	↑4.4
12/31 02:30	58.4	↑4.6
12/31 02:40	63.1	↑4.7
12/31 02:50	67.8	↑4.7
12/31 03:00	72.6	↑4.8	最大潮位差
12/31 03:10	77.3	↑4.7
12/31 03:20	82.0	↑4.7
12/31 03:30	86.5	↑4.5
12/31 03:40	90.9	↑4.4
12/31 03:50	95.1	↑4.2
12/31 04:00	99.1	↑4.0
12/31 04:10	102.8	↑3.7
12/31 04:20	106.2	↑3.4
12/31 04:30	109.3	↑3.1
12/31 04:40	112.1	↑2.8
12/31 04:50	114.6	↑2.5
12/31 05:00	116.8	↑2.2
12/31 05:10	118.7	↑1.9
12/31 05:20	120.3	↑1.6
12/31 05:30	121.6	↑1.3
12/31 05:40	122.7	↑1.1
12/31 05:50	123.6	↑0.9
12/31 06:00	124.2	↑0.6
12/31 06:10	124.7	↑0.5
12/31 06:20	125.0	↑0.3
12/31 06:30	125.1	↑0.1	満潮
12/31 06:40	125.1	0
12/31 06:50	124.9	↓-0.2
12/31 07:00	124.5	↓-0.4
12/31 07:10	124.0	↓-0.5
12/31 07:20	123.3	↓-0.7
12/31 07:30	122.4	↓-0.9
12/31 07:40	121.3	↓-1.1
12/31 07:50	120.1	↓-1.2
12/31 08:00	118.6	↓-1.5
12/31 08:10	117.0	↓-1.6
12/31 08:20	115.2	↓-1.8
12/31 08:30	113.3	↓-1.9
12/31 08:40	111.2	↓-2.1
12/31 08:50	109.0	↓-2.2
12/31 09:00	106.8	↓-2.2
12/31 09:10	104.5	↓-2.3
12/31 09:20	102.2	↓-2.3
12/31 09:30	99.9	↓-2.3
12/31 09:40	97.7	↓-2.2
12/31 09:50	95.6	↓-2.1
12/31 10:00	93.7	↓-1.9
12/31 10:10	92.0	↓-1.7
12/31 10:20	90.4	↓-1.6
12/31 10:30	89.1	↓-1.3
12/31 10:40	88.1	↓-1.0
12/31 10:50	87.2	↓-0.9
12/31 11:00	86.7	↓-0.5
12/31 11:10	86.4	↓-0.3	干潮
12/31 11:20	86.3	↓-0.1
12/31 11:30	86.4	↑0.1
12/31 11:40	86.8	↑0.4
12/31 11:50	87.3	↑0.5
12/31 12:00	88.1	↑0.8
12/31 12:10	89.0	↑0.9
12/31 12:20	90.0	↑1.0
12/31 12:30	91.2	↑1.2
12/31 12:40	92.5	↑1.3
12/31 12:50	93.9	↑1.4
12/31 13:00	95.4	↑1.5
12/31 13:10	97.1	↑1.7
12/31 13:20	98.8	↑1.7
12/31 13:30	100.7	↑1.9
12/31 13:40	102.6	↑1.9
12/31 13:50	104.7	↑2.1
12/31 14:00	106.9	↑2.2
12/31 14:10	109.2	↑2.3
12/31 14:20	111.6	↑2.4
12/31 14:30	114.1	↑2.5
12/31 14:40	116.6	↑2.5
12/31 14:50	119.1	↑2.5
12/31 15:00	121.7	↑2.6
12/31 15:10	124.1	↑2.4
12/31 15:20	126.5	↑2.4
12/31 15:30	128.8	↑2.3
12/31 15:40	130.9	↑2.1
12/31 15:50	132.7	↑1.8
12/31 16:00	134.3	↑1.6
12/31 16:10	135.6	↑1.3
12/31 16:20	136.6	↑1.0
12/31 16:30	137.2	↑0.6
12/31 16:40	137.5	↑0.3	満潮
12/31 16:50	137.4	↓-0.1
12/31 17:00	136.8	↓-0.6
12/31 17:10	135.9	↓-0.9
12/31 17:20	134.7	↓-1.2
12/31 17:30	133.0	↓-1.7
12/31 17:40	131.1	↓-1.9
12/31 17:50	128.8	↓-2.3
12/31 18:00	126.3	↓-2.5
12/31 18:10	123.5	↓-2.8
12/31 18:20	120.5	↓-3.0
12/31 18:30	117.3	↓-3.2
12/31 18:40	113.9	↓-3.4
12/31 18:50	110.4	↓-3.5
12/31 19:00	106.8	↓-3.6
12/31 19:10	103.0	↓-3.8
12/31 19:20	99.1	↓-3.9
12/31 19:30	95.1	↓-4.0
12/31 19:40	91.1	↓-4.0
12/31 19:50	86.9	↓-4.2
12/31 20:00	82.6	↓-4.3
12/31 20:10	78.3	↓-4.3
12/31 20:20	73.9	↓-4.4
12/31 20:30	69.5	↓-4.4
12/31 20:40	65.0	↓-4.5
12/31 20:50	60.5	↓-4.5
12/31 21:00	56.0	↓-4.5
12/31 21:10	51.5	↓-4.5
12/31 21:20	47.1	↓-4.4
12/31 21:30	42.8	↓-4.3
12/31 21:40	38.7	↓-4.1
12/31 21:50	34.7	↓-4.0
12/31 22:00	31.0	↓-3.7
12/31 22:10	27.5	↓-3.5
12/31 22:20	24.4	↓-3.1
12/31 22:30	21.5	↓-2.9
12/31 22:40	19.1	↓-2.4
12/31 22:50	17.0	↓-2.1
12/31 23:00	15.2	↓-1.8
12/31 23:10	13.9	↓-1.3
12/31 23:20	13.0	↓-0.9
12/31 23:30	12.4	↓-0.6
12/31 23:40	12.2	↓-0.2	干潮
12/31 23:50	12.4	↑0.2