20 (日)	05:26	12:29	19:37	-
	136cm	11cm	107cm	-
中潮 出 04:46 入 18:21 出 23:24 入 08:23 潮干狩り ◎ 10:33～14:47

苫小牧（北海道）2014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	76.7	↑0.3
4/20 00:10	77.3	↑0.6
4/20 00:20	78.1	↑0.8
4/20 00:30	79.1	↑1.0
4/20 00:40	80.3	↑1.2
4/20 00:50	81.7	↑1.4
4/20 01:00	83.2	↑1.5
4/20 01:10	84.9	↑1.7
4/20 01:20	86.7	↑1.8
4/20 01:30	88.5	↑1.8
4/20 01:40	90.4	↑1.9
4/20 01:50	92.5	↑2.1
4/20 02:00	94.5	↑2.0
4/20 02:10	96.7	↑2.2
4/20 02:20	98.9	↑2.2
4/20 02:30	101.2	↑2.3
4/20 02:40	103.5	↑2.3
4/20 02:50	106.0	↑2.5
4/20 03:00	108.4	↑2.4
4/20 03:10	110.9	↑2.5
4/20 03:20	113.5	↑2.6
4/20 03:30	116.1	↑2.6
4/20 03:40	118.6	↑2.5
4/20 03:50	121.1	↑2.5
4/20 04:00	123.5	↑2.4
4/20 04:10	125.8	↑2.3
4/20 04:20	128.0	↑2.2
4/20 04:30	129.9	↑1.9
4/20 04:40	131.6	↑1.7
4/20 04:50	133.1	↑1.5
4/20 05:00	134.2	↑1.1
4/20 05:10	134.9	↑0.7
4/20 05:20	135.3	↑0.4	満潮
4/20 05:30	135.3	0
4/20 05:40	135.0	↓-0.3
4/20 05:50	134.2	↓-0.8
4/20 06:00	133.0	↓-1.2
4/20 06:10	131.4	↓-1.6
4/20 06:20	129.5	↓-1.9
4/20 06:30	127.3	↓-2.2
4/20 06:40	124.7	↓-2.6
4/20 06:50	121.9	↓-2.8
4/20 07:00	118.8	↓-3.1
4/20 07:10	115.5	↓-3.3
4/20 07:20	112.1	↓-3.4
4/20 07:30	108.5	↓-3.6
4/20 07:40	104.8	↓-3.7
4/20 07:50	101.0	↓-3.8
4/20 08:00	97.1	↓-3.9
4/20 08:10	93.1	↓-4.0
4/20 08:20	89.1	↓-4.0
4/20 08:30	85.0	↓-4.1
4/20 08:40	80.8	↓-4.2
4/20 08:50	76.7	↓-4.1
4/20 09:00	72.4	↓-4.3	最大潮位差
4/20 09:10	68.2	↓-4.2
4/20 09:20	63.9	↓-4.3	最大潮位差
4/20 09:30	59.6	↓-4.3	最大潮位差
4/20 09:40	55.3	↓-4.3	最大潮位差
4/20 09:50	51.1	↓-4.2
4/20 10:00	46.9	↓-4.2
4/20 10:10	42.8	↓-4.1
4/20 10:20	38.7	↓-4.1
4/20 10:30	34.9	↓-3.8
4/20 10:40	31.2	↓-3.7
4/20 10:50	27.8	↓-3.4
4/20 11:00	24.6	↓-3.2
4/20 11:10	21.7	↓-2.9
4/20 11:20	19.1	↓-2.6
4/20 11:30	16.9	↓-2.2
4/20 11:40	15.0	↓-1.9
4/20 11:50	13.4	↓-1.6
4/20 12:00	12.3	↓-1.1
4/20 12:10	11.5	↓-0.8
4/20 12:20	11.1	↓-0.4	干潮
4/20 12:30	11.0	↓-0.1
4/20 12:40	11.2	↑0.2
4/20 12:50	11.7	↑0.5
4/20 13:00	12.6	↑0.9
4/20 13:10	13.6	↑1.0
4/20 13:20	14.9	↑1.3
4/20 13:30	16.5	↑1.6
4/20 13:40	18.2	↑1.7
4/20 13:50	20.1	↑1.9
4/20 14:00	22.2	↑2.1
4/20 14:10	24.4	↑2.2
4/20 14:20	26.8	↑2.4
4/20 14:30	29.3	↑2.5
4/20 14:40	32.0	↑2.7
4/20 14:50	34.8	↑2.8
4/20 15:00	37.8	↑3.0
4/20 15:10	40.9	↑3.1
4/20 15:20	44.2	↑3.3
4/20 15:30	47.6	↑3.4
4/20 15:40	51.2	↑3.6
4/20 15:50	54.8	↑3.6
4/20 16:00	58.5	↑3.7
4/20 16:10	62.3	↑3.8
4/20 16:20	66.1	↑3.8
4/20 16:30	69.9	↑3.8
4/20 16:40	73.7	↑3.8
4/20 16:50	77.4	↑3.7
4/20 17:00	81.0	↑3.6
4/20 17:10	84.4	↑3.4
4/20 17:20	87.6	↑3.2
4/20 17:30	90.6	↑3.0
4/20 17:40	93.4	↑2.8
4/20 17:50	95.9	↑2.5
4/20 18:00	98.1	↑2.2
4/20 18:10	100.1	↑2.0
4/20 18:20	101.8	↑1.7
4/20 18:30	103.2	↑1.4
4/20 18:40	104.3	↑1.1
4/20 18:50	105.2	↑0.9
4/20 19:00	105.9	↑0.7
4/20 19:10	106.4	↑0.5
4/20 19:20	106.7	↑0.3
4/20 19:30	106.8	↑0.1	満潮
4/20 19:40	106.8	0
4/20 19:50	106.7	↓-0.1
4/20 20:00	106.5	↓-0.2
4/20 20:10	106.2	↓-0.3
4/20 20:20	105.9	↓-0.3
4/20 20:30	105.4	↓-0.5
4/20 20:40	104.9	↓-0.5
4/20 20:50	104.2	↓-0.7
4/20 21:00	103.5	↓-0.7
4/20 21:10	102.7	↓-0.8
4/20 21:20	101.8	↓-0.9
4/20 21:30	100.8	↓-1.0
4/20 21:40	99.6	↓-1.2
4/20 21:50	98.4	↓-1.2
4/20 22:00	97.1	↓-1.3
4/20 22:10	95.7	↓-1.4
4/20 22:20	94.3	↓-1.4
4/20 22:30	92.8	↓-1.5
4/20 22:40	91.3	↓-1.5
4/20 22:50	89.8	↓-1.5
4/20 23:00	88.3	↓-1.5
4/20 23:10	87.0	↓-1.3
4/20 23:20	85.7	↓-1.3
4/20 23:30	84.6	↓-1.1
4/20 23:40	83.6	↓-1.0
4/20 23:50	82.8	↓-0.8