31 (月)	02:51	06:38	12:10	19:54
	113cm	97cm	135cm	11cm
中潮 出 07:03 入 16:12 出 04:03 入 13:34

苫小牧（北海道）2040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	91.5	↑2.7
12/31 00:10	94.1	↑2.6
12/31 00:20	96.5	↑2.4
12/31 00:30	98.7	↑2.2
12/31 00:40	100.7	↑2.0
12/31 00:50	102.6	↑1.9
12/31 01:00	104.3	↑1.7
12/31 01:10	105.8	↑1.5
12/31 01:20	107.1	↑1.3
12/31 01:30	108.3	↑1.2
12/31 01:40	109.4	↑1.1
12/31 01:50	110.2	↑0.8
12/31 02:00	111.0	↑0.8
12/31 02:10	111.6	↑0.6
12/31 02:20	112.0	↑0.4
12/31 02:30	112.3	↑0.3
12/31 02:40	112.5	↑0.2
12/31 02:50	112.6	↑0.1	満潮
12/31 03:00	112.5	↓-0.1
12/31 03:10	112.3	↓-0.2
12/31 03:20	112.0	↓-0.3
12/31 03:30	111.6	↓-0.4
12/31 03:40	111.0	↓-0.6
12/31 03:50	110.3	↓-0.7
12/31 04:00	109.6	↓-0.7
12/31 04:10	108.7	↓-0.9
12/31 04:20	107.7	↓-1.0
12/31 04:30	106.7	↓-1.0
12/31 04:40	105.6	↓-1.1
12/31 04:50	104.5	↓-1.1
12/31 05:00	103.4	↓-1.1
12/31 05:10	102.3	↓-1.1
12/31 05:20	101.2	↓-1.1
12/31 05:30	100.2	↓-1.0
12/31 05:40	99.3	↓-0.9
12/31 05:50	98.5	↓-0.8
12/31 06:00	97.9	↓-0.6
12/31 06:10	97.3	↓-0.6
12/31 06:20	97.0	↓-0.3
12/31 06:30	96.8	↓-0.2	干潮
12/31 06:40	96.7	↓-0.1
12/31 06:50	96.9	↑0.2
12/31 07:00	97.2	↑0.3
12/31 07:10	97.6	↑0.4
12/31 07:20	98.3	↑0.7
12/31 07:30	99.0	↑0.7
12/31 07:40	99.9	↑0.9
12/31 07:50	101.0	↑1.1
12/31 08:00	102.1	↑1.1
12/31 08:10	103.3	↑1.2
12/31 08:20	104.6	↑1.3
12/31 08:30	106.0	↑1.4
12/31 08:40	107.4	↑1.4
12/31 08:50	108.9	↑1.5
12/31 09:00	110.5	↑1.6
12/31 09:10	112.1	↑1.6
12/31 09:20	113.7	↑1.6
12/31 09:30	115.3	↑1.6
12/31 09:40	117.0	↑1.7
12/31 09:50	118.6	↑1.6
12/31 10:00	120.3	↑1.7
12/31 10:10	122.0	↑1.7
12/31 10:20	123.6	↑1.6
12/31 10:30	125.2	↑1.6
12/31 10:40	126.8	↑1.6
12/31 10:50	128.3	↑1.5
12/31 11:00	129.7	↑1.4
12/31 11:10	131.0	↑1.3
12/31 11:20	132.1	↑1.1
12/31 11:30	133.1	↑1.0
12/31 11:40	133.9	↑0.8
12/31 11:50	134.4	↑0.5
12/31 12:00	134.8	↑0.4	満潮
12/31 12:10	134.9	↑0.1	満潮
12/31 12:20	134.7	↓-0.2
12/31 12:30	134.3	↓-0.4
12/31 12:40	133.6	↓-0.7
12/31 12:50	132.7	↓-0.9
12/31 13:00	131.4	↓-1.3
12/31 13:10	129.9	↓-1.5
12/31 13:20	128.2	↓-1.7
12/31 13:30	126.2	↓-2.0
12/31 13:40	124.0	↓-2.2
12/31 13:50	121.6	↓-2.4
12/31 14:00	118.9	↓-2.7
12/31 14:10	116.2	↓-2.7
12/31 14:20	113.2	↓-3.0
12/31 14:30	110.1	↓-3.1
12/31 14:40	106.9	↓-3.2
12/31 14:50	103.5	↓-3.4
12/31 15:00	100.1	↓-3.4
12/31 15:10	96.5	↓-3.6
12/31 15:20	92.8	↓-3.7
12/31 15:30	89.1	↓-3.7
12/31 15:40	85.2	↓-3.9
12/31 15:50	81.3	↓-3.9
12/31 16:00	77.3	↓-4.0
12/31 16:10	73.2	↓-4.1
12/31 16:20	69.1	↓-4.1
12/31 16:30	65.0	↓-4.1
12/31 16:40	60.8	↓-4.2	最大潮位差
12/31 16:50	56.7	↓-4.1
12/31 17:00	52.5	↓-4.2	最大潮位差
12/31 17:10	48.4	↓-4.1
12/31 17:20	44.4	↓-4.0
12/31 17:30	40.5	↓-3.9
12/31 17:40	36.8	↓-3.7
12/31 17:50	33.2	↓-3.6
12/31 18:00	29.8	↓-3.4
12/31 18:10	26.6	↓-3.2
12/31 18:20	23.7	↓-2.9
12/31 18:30	21.0	↓-2.7
12/31 18:40	18.7	↓-2.3
12/31 18:50	16.6	↓-2.1
12/31 19:00	14.8	↓-1.8
12/31 19:10	13.4	↓-1.4
12/31 19:20	12.2	↓-1.2
12/31 19:30	11.4	↓-0.8
12/31 19:40	10.9	↓-0.5
12/31 19:50	10.7	↓-0.2	干潮
12/31 20:00	10.7	0
12/31 20:10	11.0	↑0.3
12/31 20:20	11.6	↑0.6
12/31 20:30	12.5	↑0.9
12/31 20:40	13.6	↑1.1
12/31 20:50	14.9	↑1.3
12/31 21:00	16.4	↑1.5
12/31 21:10	18.2	↑1.8
12/31 21:20	20.2	↑2.0
12/31 21:30	22.5	↑2.3
12/31 21:40	24.9	↑2.4
12/31 21:50	27.6	↑2.7
12/31 22:00	30.4	↑2.8
12/31 22:10	33.5	↑3.1
12/31 22:20	36.7	↑3.2
12/31 22:30	40.2	↑3.5
12/31 22:40	43.8	↑3.6
12/31 22:50	47.5	↑3.7
12/31 23:00	51.4	↑3.9
12/31 23:10	55.4	↑4.0
12/31 23:20	59.5	↑4.1
12/31 23:30	63.6	↑4.1
12/31 23:40	67.8	↑4.2	最大潮位差
12/31 23:50	71.9	↑4.1