20 (土)	03:12	09:49	16:19	21:55
	134cm	16cm	132cm	54cm
大潮 出 04:47 入 18:21 出 19:12 入 05:27 潮干狩り ◎ 08:10～11:36

苫小牧（北海道）2019年04月20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
4/20 00:00	78.2	↑3.7
4/20 00:10	82.1	↑3.9
4/20 00:20	86.2	↑4.1
4/20 00:30	90.3	↑4.1
4/20 00:40	94.5	↑4.2
4/20 00:50	98.7	↑4.2
4/20 01:00	102.9	↑4.2
4/20 01:10	106.9	↑4.0
4/20 01:20	110.8	↑3.9
4/20 01:30	114.6	↑3.8
4/20 01:40	118.1	↑3.5
4/20 01:50	121.3	↑3.2
4/20 02:00	124.1	↑2.8
4/20 02:10	126.7	↑2.6
4/20 02:20	128.9	↑2.2
4/20 02:30	130.6	↑1.7
4/20 02:40	132.0	↑1.4
4/20 02:50	133.0	↑1.0
4/20 03:00	133.6	↑0.6
4/20 03:10	133.9	↑0.3	満潮
4/20 03:20	133.7	↓-0.2
4/20 03:30	133.2	↓-0.5
4/20 03:40	132.4	↓-0.8
4/20 03:50	131.3	↓-1.1
4/20 04:00	129.9	↓-1.4
4/20 04:10	128.2	↓-1.7
4/20 04:20	126.3	↓-1.9
4/20 04:30	124.1	↓-2.2
4/20 04:40	121.6	↓-2.5
4/20 04:50	118.9	↓-2.7
4/20 05:00	116.0	↓-2.9
4/20 05:10	112.8	↓-3.2
4/20 05:20	109.5	↓-3.3
4/20 05:30	105.8	↓-3.7
4/20 05:40	102.0	↓-3.8
4/20 05:50	97.9	↓-4.1
4/20 06:00	93.6	↓-4.3
4/20 06:10	89.2	↓-4.4
4/20 06:20	84.5	↓-4.7
4/20 06:30	79.7	↓-4.8
4/20 06:40	74.9	↓-4.8
4/20 06:50	69.9	↓-5.0
4/20 07:00	64.9	↓-5.0
4/20 07:10	60.0	↓-4.9
4/20 07:20	55.1	↓-4.9
4/20 07:30	50.4	↓-4.7
4/20 07:40	45.8	↓-4.6
4/20 07:50	41.4	↓-4.4
4/20 08:00	37.3	↓-4.1
4/20 08:10	33.5	↓-3.8
4/20 08:20	30.1	↓-3.4
4/20 08:30	27.0	↓-3.1
4/20 08:40	24.3	↓-2.7
4/20 08:50	21.9	↓-2.4
4/20 09:00	20.0	↓-1.9
4/20 09:10	18.4	↓-1.6
4/20 09:20	17.2	↓-1.2
4/20 09:30	16.4	↓-0.8
4/20 09:40	16.0	↓-0.4	干潮
4/20 09:50	15.9	↓-0.1
4/20 10:00	16.2	↑0.3
4/20 10:10	16.7	↑0.5
4/20 10:20	17.6	↑0.9
4/20 10:30	18.8	↑1.2
4/20 10:40	20.2	↑1.4
4/20 10:50	22.0	↑1.8
4/20 11:00	24.1	↑2.1
4/20 11:10	26.4	↑2.3
4/20 11:20	29.0	↑2.6
4/20 11:30	32.0	↑3.0
4/20 11:40	35.2	↑3.2
4/20 11:50	38.7	↑3.5
4/20 12:00	42.5	↑3.8
4/20 12:10	46.5	↑4.0
4/20 12:20	50.8	↑4.3
4/20 12:30	55.4	↑4.6
4/20 12:40	60.1	↑4.7
4/20 12:50	65.0	↑4.9
4/20 13:00	70.0	↑5.0
4/20 13:10	75.1	↑5.1	最大潮位差
4/20 13:20	80.2	↑5.1	最大潮位差
4/20 13:30	85.2	↑5.0
4/20 13:40	90.2	↑5.0
4/20 13:50	95.0	↑4.8
4/20 14:00	99.7	↑4.7
4/20 14:10	104.1	↑4.4
4/20 14:20	108.2	↑4.1
4/20 14:30	112.1	↑3.9
4/20 14:40	115.6	↑3.5
4/20 14:50	118.7	↑3.1
4/20 15:00	121.5	↑2.8
4/20 15:10	123.9	↑2.4
4/20 15:20	125.9	↑2.0
4/20 15:30	127.6	↑1.7
4/20 15:40	128.9	↑1.3
4/20 15:50	129.9	↑1.0
4/20 16:00	130.6	↑0.7
4/20 16:10	130.9	↑0.3	満潮
4/20 16:20	131.0	↑0.1
4/20 16:30	130.8	↓-0.2
4/20 16:40	130.4	↓-0.4
4/20 16:50	129.7	↓-0.7
4/20 17:00	128.7	↓-1.0
4/20 17:10	127.5	↓-1.2
4/20 17:20	126.0	↓-1.5
4/20 17:30	124.3	↓-1.7
4/20 17:40	122.4	↓-1.9
4/20 17:50	120.1	↓-2.3
4/20 18:00	117.7	↓-2.4
4/20 18:10	114.9	↓-2.8
4/20 18:20	112.0	↓-2.9
4/20 18:30	108.8	↓-3.2
4/20 18:40	105.4	↓-3.4
4/20 18:50	101.8	↓-3.6
4/20 19:00	98.1	↓-3.7
4/20 19:10	94.3	↓-3.8
4/20 19:20	90.5	↓-3.8
4/20 19:30	86.6	↓-3.9
4/20 19:40	82.7	↓-3.9
4/20 19:50	78.9	↓-3.8
4/20 20:00	75.3	↓-3.6
4/20 20:10	71.9	↓-3.4
4/20 20:20	68.6	↓-3.3
4/20 20:30	65.7	↓-2.9
4/20 20:40	63.0	↓-2.7
4/20 20:50	60.7	↓-2.3
4/20 21:00	58.7	↓-2.0
4/20 21:10	57.0	↓-1.7
4/20 21:20	55.7	↓-1.3
4/20 21:30	54.7	↓-1.0
4/20 21:40	54.1	↓-0.6
4/20 21:50	53.9	↓-0.2	干潮
4/20 22:00	53.9	0
4/20 22:10	54.2	↑0.3
4/20 22:20	54.8	↑0.6
4/20 22:30	55.7	↑0.9
4/20 22:40	56.9	↑1.2
4/20 22:50	58.2	↑1.3
4/20 23:00	59.8	↑1.6
4/20 23:10	61.7	↑1.9
4/20 23:20	63.7	↑2.0
4/20 23:30	66.0	↑2.3
4/20 23:40	68.5	↑2.5
4/20 23:50	71.2	↑2.7