9 (月)	05:19	12:17	18:52	23:57
	132cm	21cm	110cm	78cm
中潮 出 05:03 入 18:10 出 07:58 入 23:10 潮干狩り ○ 10:46～14:01

苫小牧（北海道）2057年04月9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
4/9 00:00	70.8	↑0.7
4/9 00:10	71.7	↑0.9
4/9 00:20	72.9	↑1.2
4/9 00:30	74.2	↑1.3
4/9 00:40	75.7	↑1.5
4/9 00:50	77.3	↑1.6
4/9 01:00	79.1	↑1.8
4/9 01:10	80.9	↑1.8
4/9 01:20	82.9	↑2.0
4/9 01:30	84.9	↑2.0
4/9 01:40	87.0	↑2.1
4/9 01:50	89.2	↑2.2
4/9 02:00	91.5	↑2.3
4/9 02:10	93.8	↑2.3
4/9 02:20	96.2	↑2.4
4/9 02:30	98.6	↑2.4
4/9 02:40	101.1	↑2.5
4/9 02:50	103.7	↑2.6
4/9 03:00	106.3	↑2.6
4/9 03:10	109.0	↑2.7
4/9 03:20	111.6	↑2.6
4/9 03:30	114.2	↑2.6
4/9 03:40	116.8	↑2.6
4/9 03:50	119.3	↑2.5
4/9 04:00	121.6	↑2.3
4/9 04:10	123.8	↑2.2
4/9 04:20	125.8	↑2.0
4/9 04:30	127.6	↑1.8
4/9 04:40	129.1	↑1.5
4/9 04:50	130.2	↑1.1
4/9 05:00	131.1	↑0.9
4/9 05:10	131.5	↑0.4	満潮
4/9 05:20	131.7	↑0.2
4/9 05:30	131.4	↓-0.3
4/9 05:40	130.8	↓-0.6
4/9 05:50	129.8	↓-1.0
4/9 06:00	128.5	↓-1.3
4/9 06:10	126.9	↓-1.6
4/9 06:20	124.9	↓-2.0
4/9 06:30	122.7	↓-2.2
4/9 06:40	120.3	↓-2.4
4/9 06:50	117.6	↓-2.7
4/9 07:00	114.8	↓-2.8
4/9 07:10	111.9	↓-2.9
4/9 07:20	108.7	↓-3.2
4/9 07:30	105.5	↓-3.2
4/9 07:40	102.2	↓-3.3
4/9 07:50	98.8	↓-3.4
4/9 08:00	95.3	↓-3.5
4/9 08:10	91.8	↓-3.5
4/9 08:20	88.2	↓-3.6
4/9 08:30	84.5	↓-3.7
4/9 08:40	80.7	↓-3.8
4/9 08:50	76.9	↓-3.8
4/9 09:00	73.0	↓-3.9
4/9 09:10	69.1	↓-3.9
4/9 09:20	65.2	↓-3.9
4/9 09:30	61.2	↓-4.0	最大潮位差
4/9 09:40	57.3	↓-3.9
4/9 09:50	53.4	↓-3.9
4/9 10:00	49.5	↓-3.9
4/9 10:10	45.8	↓-3.7
4/9 10:20	42.2	↓-3.6
4/9 10:30	38.7	↓-3.5
4/9 10:40	35.5	↓-3.2
4/9 10:50	32.5	↓-3.0
4/9 11:00	29.8	↓-2.7
4/9 11:10	27.4	↓-2.4
4/9 11:20	25.4	↓-2.0
4/9 11:30	23.6	↓-1.8
4/9 11:40	22.3	↓-1.3
4/9 11:50	21.2	↓-1.1
4/9 12:00	20.5	↓-0.7
4/9 12:10	20.2	↓-0.3	干潮
4/9 12:20	20.2	0
4/9 12:30	20.5	↑0.3
4/9 12:40	21.0	↑0.5
4/9 12:50	21.9	↑0.9
4/9 13:00	22.9	↑1.0
4/9 13:10	24.3	↑1.4
4/9 13:20	25.8	↑1.5
4/9 13:30	27.5	↑1.7
4/9 13:40	29.4	↑1.9
4/9 13:50	31.4	↑2.0
4/9 14:00	33.7	↑2.3
4/9 14:10	36.1	↑2.4
4/9 14:20	38.6	↑2.5
4/9 14:30	41.3	↑2.7
4/9 14:40	44.2	↑2.9
4/9 14:50	47.2	↑3.0
4/9 15:00	50.4	↑3.2
4/9 15:10	53.7	↑3.3
4/9 15:20	57.2	↑3.5
4/9 15:30	60.7	↑3.5
4/9 15:40	64.4	↑3.7
4/9 15:50	68.1	↑3.7
4/9 16:00	71.9	↑3.8
4/9 16:10	75.6	↑3.7
4/9 16:20	79.3	↑3.7
4/9 16:30	82.9	↑3.6
4/9 16:40	86.4	↑3.5
4/9 16:50	89.8	↑3.4
4/9 17:00	92.9	↑3.1
4/9 17:10	95.8	↑2.9
4/9 17:20	98.5	↑2.7
4/9 17:30	100.9	↑2.4
4/9 17:40	102.9	↑2.0
4/9 17:50	104.7	↑1.8
4/9 18:00	106.2	↑1.5
4/9 18:10	107.3	↑1.1
4/9 18:20	108.2	↑0.9
4/9 18:30	108.8	↑0.6
4/9 18:40	109.2	↑0.4
4/9 18:50	109.3	↑0.1	満潮
4/9 19:00	109.2	↓-0.1
4/9 19:10	109.0	↓-0.2
4/9 19:20	108.5	↓-0.5
4/9 19:30	108.0	↓-0.5
4/9 19:40	107.3	↓-0.7
4/9 19:50	106.6	↓-0.7
4/9 20:00	105.7	↓-0.9
4/9 20:10	104.8	↓-0.9
4/9 20:20	103.8	↓-1.0
4/9 20:30	102.7	↓-1.1
4/9 20:40	101.5	↓-1.2
4/9 20:50	100.3	↓-1.2
4/9 21:00	99.0	↓-1.3
4/9 21:10	97.6	↓-1.4
4/9 21:20	96.1	↓-1.5
4/9 21:30	94.6	↓-1.5
4/9 21:40	93.0	↓-1.6
4/9 21:50	91.4	↓-1.6
4/9 22:00	89.7	↓-1.7
4/9 22:10	88.1	↓-1.6
4/9 22:20	86.4	↓-1.7
4/9 22:30	84.8	↓-1.6
4/9 22:40	83.3	↓-1.5
4/9 22:50	81.9	↓-1.4
4/9 23:00	80.6	↓-1.3
4/9 23:10	79.5	↓-1.1
4/9 23:20	78.6	↓-0.9
4/9 23:30	77.8	↓-0.8
4/9 23:40	77.3	↓-0.5
4/9 23:50	77.1	↓-0.2	干潮