12 (土)	05:11	12:15	19:22	-
	141cm	8cm	108cm	-
中潮 出 04:59 入 18:12 出 23:22 入 07:56 潮干狩り ◎ 10:13～14:42

苫小牧（北海道）2031年04月12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
4/12 00:00	76.9	↑0.8
4/12 00:10	77.9	↑1.0
4/12 00:20	79.2	↑1.3
4/12 00:30	80.6	↑1.4
4/12 00:40	82.2	↑1.6
4/12 00:50	84.0	↑1.8
4/12 01:00	85.9	↑1.9
4/12 01:10	87.9	↑2.0
4/12 01:20	90.0	↑2.1
4/12 01:30	92.1	↑2.1
4/12 01:40	94.4	↑2.3
4/12 01:50	96.8	↑2.4
4/12 02:00	99.2	↑2.4
4/12 02:10	101.7	↑2.5
4/12 02:20	104.3	↑2.6
4/12 02:30	107.0	↑2.7
4/12 02:40	109.7	↑2.7
4/12 02:50	112.5	↑2.8
4/12 03:00	115.3	↑2.8
4/12 03:10	118.1	↑2.8
4/12 03:20	120.9	↑2.8
4/12 03:30	123.7	↑2.8
4/12 03:40	126.4	↑2.7
4/12 03:50	129.0	↑2.6
4/12 04:00	131.4	↑2.4
4/12 04:10	133.6	↑2.2
4/12 04:20	135.6	↑2.0
4/12 04:30	137.2	↑1.6
4/12 04:40	138.6	↑1.4
4/12 04:50	139.6	↑1.0
4/12 05:00	140.2	↑0.6
4/12 05:10	140.3	↑0.1	満潮
4/12 05:20	140.1	↓-0.2
4/12 05:30	139.5	↓-0.6
4/12 05:40	138.4	↓-1.1
4/12 05:50	136.9	↓-1.5
4/12 06:00	135.1	↓-1.8
4/12 06:10	132.9	↓-2.2
4/12 06:20	130.4	↓-2.5
4/12 06:30	127.5	↓-2.9
4/12 06:40	124.4	↓-3.1
4/12 06:50	121.1	↓-3.3
4/12 07:00	117.5	↓-3.6
4/12 07:10	113.8	↓-3.7
4/12 07:20	110.0	↓-3.8
4/12 07:30	106.0	↓-4.0
4/12 07:40	101.9	↓-4.1
4/12 07:50	97.7	↓-4.2
4/12 08:00	93.5	↓-4.2
4/12 08:10	89.1	↓-4.4
4/12 08:20	84.7	↓-4.4
4/12 08:30	80.2	↓-4.5
4/12 08:40	75.7	↓-4.5
4/12 08:50	71.1	↓-4.6
4/12 09:00	66.5	↓-4.6
4/12 09:10	61.9	↓-4.6
4/12 09:20	57.3	↓-4.6
4/12 09:30	52.6	↓-4.7	最大潮位差
4/12 09:40	48.0	↓-4.6
4/12 09:50	43.5	↓-4.5
4/12 10:00	39.2	↓-4.3
4/12 10:10	34.9	↓-4.3
4/12 10:20	30.9	↓-4.0
4/12 10:30	27.0	↓-3.9
4/12 10:40	23.5	↓-3.5
4/12 10:50	20.2	↓-3.3
4/12 11:00	17.2	↓-3.0
4/12 11:10	14.7	↓-2.5
4/12 11:20	12.4	↓-2.3
4/12 11:30	10.6	↓-1.8
4/12 11:40	9.2	↓-1.4
4/12 11:50	8.1	↓-1.1
4/12 12:00	7.4	↓-0.7
4/12 12:10	7.1	↓-0.3	干潮
4/12 12:20	7.1	0
4/12 12:30	7.5	↑0.4
4/12 12:40	8.2	↑0.7
4/12 12:50	9.1	↑0.9
4/12 13:00	10.3	↑1.2
4/12 13:10	11.8	↑1.5
4/12 13:20	13.4	↑1.6
4/12 13:30	15.3	↑1.9
4/12 13:40	17.4	↑2.1
4/12 13:50	19.6	↑2.2
4/12 14:00	22.0	↑2.4
4/12 14:10	24.6	↑2.6
4/12 14:20	27.3	↑2.7
4/12 14:30	30.2	↑2.9
4/12 14:40	33.3	↑3.1
4/12 14:50	36.5	↑3.2
4/12 15:00	39.9	↑3.4
4/12 15:10	43.5	↑3.6
4/12 15:20	47.2	↑3.7
4/12 15:30	51.0	↑3.8
4/12 15:40	54.9	↑3.9
4/12 15:50	58.9	↑4.0
4/12 16:00	62.9	↑4.0
4/12 16:10	67.0	↑4.1
4/12 16:20	71.0	↑4.0
4/12 16:30	74.9	↑3.9
4/12 16:40	78.7	↑3.8
4/12 16:50	82.3	↑3.6
4/12 17:00	85.8	↑3.5
4/12 17:10	89.0	↑3.2
4/12 17:20	92.0	↑3.0
4/12 17:30	94.7	↑2.7
4/12 17:40	97.1	↑2.4
4/12 17:50	99.3	↑2.2
4/12 18:00	101.1	↑1.8
4/12 18:10	102.7	↑1.6
4/12 18:20	103.9	↑1.2
4/12 18:30	105.0	↑1.1
4/12 18:40	105.8	↑0.8
4/12 18:50	106.3	↑0.5
4/12 19:00	106.7	↑0.4
4/12 19:10	106.9	↑0.2
4/12 19:20	107.0	↑0.1	満潮
4/12 19:30	107.0	0
4/12 19:40	106.8	↓-0.2
4/12 19:50	106.5	↓-0.3
4/12 20:00	106.2	↓-0.3
4/12 20:10	105.7	↓-0.5
4/12 20:20	105.2	↓-0.5
4/12 20:30	104.5	↓-0.7
4/12 20:40	103.8	↓-0.7
4/12 20:50	103.0	↓-0.8
4/12 21:00	102.0	↓-1.0
4/12 21:10	100.9	↓-1.1
4/12 21:20	99.8	↓-1.1
4/12 21:30	98.5	↓-1.3
4/12 21:40	97.1	↓-1.4
4/12 21:50	95.7	↓-1.4
4/12 22:00	94.2	↓-1.5
4/12 22:10	92.6	↓-1.6
4/12 22:20	91.0	↓-1.6
4/12 22:30	89.5	↓-1.5
4/12 22:40	88.0	↓-1.5
4/12 22:50	86.6	↓-1.4
4/12 23:00	85.2	↓-1.4
4/12 23:10	84.1	↓-1.1
4/12 23:20	83.1	↓-1.0
4/12 23:30	82.3	↓-0.8
4/12 23:40	81.7	↓-0.6
4/12 23:50	81.4	↓-0.3