1 (土)	05:14	11:57	18:33	23:56
	133cm	21cm	111cm	72cm
中潮 出 05:18 入 18:00 出 22:38 入 07:45 潮干狩り ○ 10:30～13:37

苫小牧（北海道）2051年04月1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
4/1 00:00	66.5	↑0.9
4/1 00:10	67.5	↑1.0
4/1 00:20	68.8	↑1.3
4/1 00:30	70.3	↑1.5
4/1 00:40	72.0	↑1.7
4/1 00:50	73.8	↑1.8
4/1 01:00	75.8	↑2.0
4/1 01:10	77.8	↑2.0
4/1 01:20	80.0	↑2.2
4/1 01:30	82.2	↑2.2
4/1 01:40	84.6	↑2.4
4/1 01:50	87.0	↑2.4
4/1 02:00	89.5	↑2.5
4/1 02:10	92.1	↑2.6
4/1 02:20	94.7	↑2.6
4/1 02:30	97.5	↑2.8
4/1 02:40	100.3	↑2.8
4/1 02:50	103.2	↑2.9
4/1 03:00	106.1	↑2.9
4/1 03:10	109.0	↑2.9
4/1 03:20	111.9	↑2.9
4/1 03:30	114.8	↑2.9
4/1 03:40	117.6	↑2.8
4/1 03:50	120.3	↑2.7
4/1 04:00	122.8	↑2.5
4/1 04:10	125.2	↑2.4
4/1 04:20	127.2	↑2.0
4/1 04:30	129.0	↑1.8
4/1 04:40	130.5	↑1.5
4/1 04:50	131.6	↑1.1
4/1 05:00	132.3	↑0.7
4/1 05:10	132.7	↑0.4	満潮
4/1 05:20	132.6	↓-0.1
4/1 05:30	132.1	↓-0.5
4/1 05:40	131.2	↓-0.9
4/1 05:50	130.0	↓-1.2
4/1 06:00	128.3	↓-1.7
4/1 06:10	126.3	↓-2.0
4/1 06:20	124.0	↓-2.3
4/1 06:30	121.5	↓-2.5
4/1 06:40	118.6	↓-2.9
4/1 06:50	115.6	↓-3.0
4/1 07:00	112.4	↓-3.2
4/1 07:10	109.1	↓-3.3
4/1 07:20	105.6	↓-3.5
4/1 07:30	102.1	↓-3.5
4/1 07:40	98.4	↓-3.7
4/1 07:50	94.7	↓-3.7
4/1 08:00	90.9	↓-3.8
4/1 08:10	87.1	↓-3.8
4/1 08:20	83.2	↓-3.9
4/1 08:30	79.3	↓-3.9
4/1 08:40	75.4	↓-3.9
4/1 08:50	71.4	↓-4.0
4/1 09:00	67.3	↓-4.1	最大潮位差
4/1 09:10	63.3	↓-4.0
4/1 09:20	59.3	↓-4.0
4/1 09:30	55.3	↓-4.0
4/1 09:40	51.4	↓-3.9
4/1 09:50	47.6	↓-3.8
4/1 10:00	43.8	↓-3.8
4/1 10:10	40.3	↓-3.5
4/1 10:20	36.9	↓-3.4
4/1 10:30	33.8	↓-3.1
4/1 10:40	30.9	↓-2.9
4/1 10:50	28.3	↓-2.6
4/1 11:00	26.1	↓-2.2
4/1 11:10	24.2	↓-1.9
4/1 11:20	22.6	↓-1.6
4/1 11:30	21.5	↓-1.1
4/1 11:40	20.7	↓-0.8
4/1 11:50	20.3	↓-0.4	干潮
4/1 12:00	20.2	↓-0.1
4/1 12:10	20.5	↑0.3
4/1 12:20	21.2	↑0.7
4/1 12:30	22.1	↑0.9
4/1 12:40	23.3	↑1.2
4/1 12:50	24.7	↑1.4
4/1 13:00	26.3	↑1.6
4/1 13:10	28.2	↑1.9
4/1 13:20	30.2	↑2.0
4/1 13:30	32.4	↑2.2
4/1 13:40	34.7	↑2.3
4/1 13:50	37.2	↑2.5
4/1 14:00	39.8	↑2.6
4/1 14:10	42.5	↑2.7
4/1 14:20	45.3	↑2.8
4/1 14:30	48.3	↑3.0
4/1 14:40	51.3	↑3.0
4/1 14:50	54.5	↑3.2
4/1 15:00	57.8	↑3.3
4/1 15:10	61.2	↑3.4
4/1 15:20	64.7	↑3.5
4/1 15:30	68.3	↑3.6
4/1 15:40	71.9	↑3.6
4/1 15:50	75.6	↑3.7
4/1 16:00	79.2	↑3.6
4/1 16:10	82.8	↑3.6
4/1 16:20	86.3	↑3.5
4/1 16:30	89.7	↑3.4
4/1 16:40	93.0	↑3.3
4/1 16:50	96.0	↑3.0
4/1 17:00	98.8	↑2.8
4/1 17:10	101.4	↑2.6
4/1 17:20	103.6	↑2.2
4/1 17:30	105.6	↑2.0
4/1 17:40	107.2	↑1.6
4/1 17:50	108.5	↑1.3
4/1 18:00	109.5	↑1.0
4/1 18:10	110.3	↑0.8
4/1 18:20	110.7	↑0.4
4/1 18:30	110.8	↑0.1	満潮
4/1 18:40	110.8	0
4/1 18:50	110.5	↓-0.3
4/1 19:00	110.0	↓-0.5
4/1 19:10	109.4	↓-0.6
4/1 19:20	108.6	↓-0.8
4/1 19:30	107.7	↓-0.9
4/1 19:40	106.7	↓-1.0
4/1 19:50	105.7	↓-1.0
4/1 20:00	104.6	↓-1.1
4/1 20:10	103.4	↓-1.2
4/1 20:20	102.1	↓-1.3
4/1 20:30	100.8	↓-1.3
4/1 20:40	99.4	↓-1.4
4/1 20:50	98.0	↓-1.4
4/1 21:00	96.4	↓-1.6
4/1 21:10	94.8	↓-1.6
4/1 21:20	93.2	↓-1.6
4/1 21:30	91.4	↓-1.8
4/1 21:40	89.6	↓-1.8
4/1 21:50	87.8	↓-1.8
4/1 22:00	85.9	↓-1.9
4/1 22:10	84.0	↓-1.9
4/1 22:20	82.2	↓-1.8
4/1 22:30	80.4	↓-1.8
4/1 22:40	78.8	↓-1.6
4/1 22:50	77.2	↓-1.6
4/1 23:00	75.8	↓-1.4
4/1 23:10	74.6	↓-1.2
4/1 23:20	73.6	↓-1.0
4/1 23:30	72.8	↓-0.8
4/1 23:40	72.3	↓-0.5
4/1 23:50	72.0	↓-0.3	干潮