31 (日)	04:42	08:36	14:03	21:35
	126cm	102cm	144cm	-5cm
大潮 出 07:03 入 16:12 出 15:40 入 06:31

苫小牧（北海道）2028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	48.6	↑4.6
12/31 00:10	53.3	↑4.7
12/31 00:20	58.1	↑4.8
12/31 00:30	63.0	↑4.9
12/31 00:40	67.8	↑4.8
12/31 00:50	72.5	↑4.7
12/31 01:00	77.2	↑4.7
12/31 01:10	81.7	↑4.5
12/31 01:20	86.1	↑4.4
12/31 01:30	90.2	↑4.1
12/31 01:40	94.1	↑3.9
12/31 01:50	97.8	↑3.7
12/31 02:00	101.3	↑3.5
12/31 02:10	104.4	↑3.1
12/31 02:20	107.4	↑3.0
12/31 02:30	110.0	↑2.6
12/31 02:40	112.5	↑2.5
12/31 02:50	114.6	↑2.1
12/31 03:00	116.6	↑2.0
12/31 03:10	118.4	↑1.8
12/31 03:20	119.9	↑1.5
12/31 03:30	121.3	↑1.4
12/31 03:40	122.4	↑1.1
12/31 03:50	123.4	↑1.0
12/31 04:00	124.3	↑0.9
12/31 04:10	124.9	↑0.6
12/31 04:20	125.4	↑0.5
12/31 04:30	125.7	↑0.3
12/31 04:40	125.8	↑0.1	満潮
12/31 04:50	125.7	↓-0.1
12/31 05:00	125.4	↓-0.3
12/31 05:10	124.9	↓-0.5
12/31 05:20	124.3	↓-0.6
12/31 05:30	123.4	↓-0.9
12/31 05:40	122.4	↓-1.0
12/31 05:50	121.2	↓-1.2
12/31 06:00	119.8	↓-1.4
12/31 06:10	118.3	↓-1.5
12/31 06:20	116.8	↓-1.5
12/31 06:30	115.1	↓-1.7
12/31 06:40	113.5	↓-1.6
12/31 06:50	111.8	↓-1.7
12/31 07:00	110.2	↓-1.6
12/31 07:10	108.6	↓-1.6
12/31 07:20	107.2	↓-1.4
12/31 07:30	105.9	↓-1.3
12/31 07:40	104.8	↓-1.1
12/31 07:50	103.8	↓-1.0
12/31 08:00	103.0	↓-0.8
12/31 08:10	102.5	↓-0.5
12/31 08:20	102.1	↓-0.4
12/31 08:30	101.9	↓-0.2	干潮
12/31 08:40	101.9	0
12/31 08:50	102.0	↑0.1
12/31 09:00	102.4	↑0.4
12/31 09:10	102.9	↑0.5
12/31 09:20	103.5	↑0.6
12/31 09:30	104.2	↑0.7
12/31 09:40	105.0	↑0.8
12/31 09:50	106.0	↑1.0
12/31 10:00	107.0	↑1.0
12/31 10:10	108.1	↑1.1
12/31 10:20	109.3	↑1.2
12/31 10:30	110.6	↑1.3
12/31 10:40	111.9	↑1.3
12/31 10:50	113.4	↑1.5
12/31 11:00	114.9	↑1.5
12/31 11:10	116.6	↑1.7
12/31 11:20	118.3	↑1.7
12/31 11:30	120.2	↑1.9
12/31 11:40	122.1	↑1.9
12/31 11:50	124.1	↑2.0
12/31 12:00	126.1	↑2.0
12/31 12:10	128.2	↑2.1
12/31 12:20	130.2	↑2.0
12/31 12:30	132.3	↑2.1
12/31 12:40	134.3	↑2.0
12/31 12:50	136.2	↑1.9
12/31 13:00	137.9	↑1.7
12/31 13:10	139.5	↑1.6
12/31 13:20	140.8	↑1.3
12/31 13:30	141.9	↑1.1
12/31 13:40	142.8	↑0.9
12/31 13:50	143.3	↑0.5
12/31 14:00	143.5	↑0.2	満潮
12/31 14:10	143.4	↓-0.1
12/31 14:20	143.0	↓-0.4
12/31 14:30	142.2	↓-0.8
12/31 14:40	141.1	↓-1.1
12/31 14:50	139.6	↓-1.5
12/31 15:00	137.9	↓-1.7
12/31 15:10	135.9	↓-2.0
12/31 15:20	133.6	↓-2.3
12/31 15:30	131.0	↓-2.6
12/31 15:40	128.2	↓-2.8
12/31 15:50	125.2	↓-3.0
12/31 16:00	122.0	↓-3.2
12/31 16:10	118.6	↓-3.4
12/31 16:20	115.0	↓-3.6
12/31 16:30	111.3	↓-3.7
12/31 16:40	107.3	↓-4.0
12/31 16:50	103.2	↓-4.1
12/31 17:00	99.0	↓-4.2
12/31 17:10	94.6	↓-4.4
12/31 17:20	90.0	↓-4.6
12/31 17:30	85.3	↓-4.7
12/31 17:40	80.4	↓-4.9
12/31 17:50	75.4	↓-5.0
12/31 18:00	70.2	↓-5.2
12/31 18:10	65.0	↓-5.2
12/31 18:20	59.7	↓-5.3
12/31 18:30	54.3	↓-5.4	最大潮位差
12/31 18:40	49.0	↓-5.3
12/31 18:50	43.7	↓-5.3
12/31 19:00	38.5	↓-5.2
12/31 19:10	33.4	↓-5.1
12/31 19:20	28.6	↓-4.8
12/31 19:30	23.9	↓-4.7
12/31 19:40	19.5	↓-4.4
12/31 19:50	15.4	↓-4.1
12/31 20:00	11.6	↓-3.8
12/31 20:10	8.2	↓-3.4
12/31 20:20	5.2	↓-3.0
12/31 20:30	2.5	↓-2.7
12/31 20:40	0.3	↓-2.2
12/31 20:50	-1.6	↓-1.9
12/31 21:00	-3.0	↓-1.4
12/31 21:10	-4.1	↓-1.1
12/31 21:20	-4.7	↓-0.6
12/31 21:30	-5.0	↓-0.3	干潮
12/31 21:40	-5.0	0
12/31 21:50	-4.6	↑0.4
12/31 22:00	-3.9	↑0.7
12/31 22:10	-2.9	↑1.0
12/31 22:20	-1.5	↑1.4
12/31 22:30	0.1	↑1.6
12/31 22:40	2.0	↑1.9
12/31 22:50	4.3	↑2.3
12/31 23:00	6.8	↑2.5
12/31 23:10	9.6	↑2.8
12/31 23:20	12.7	↑3.1
12/31 23:30	16.2	↑3.5
12/31 23:40	19.9	↑3.7
12/31 23:50	23.8	↑3.9