20 (土)	09:19	04:44	-	17:07
	98cm	86cm	-	48cm
若潮 出 04:46 入 18:22 出 12:22 入 01:21

苫小牧（北海道）2013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	99.8	↓-0.2
4/20 00:10	99.5	↓-0.3
4/20 00:20	99.1	↓-0.4
4/20 00:30	98.6	↓-0.5
4/20 00:40	98.1	↓-0.5
4/20 00:50	97.5	↓-0.6
4/20 01:00	96.9	↓-0.6
4/20 01:10	96.2	↓-0.7
4/20 01:20	95.5	↓-0.7
4/20 01:30	94.8	↓-0.7
4/20 01:40	94.0	↓-0.8
4/20 01:50	93.3	↓-0.7
4/20 02:00	92.5	↓-0.8
4/20 02:10	91.8	↓-0.7
4/20 02:20	91.1	↓-0.7
4/20 02:30	90.5	↓-0.6
4/20 02:40	89.8	↓-0.7
4/20 02:50	89.2	↓-0.6
4/20 03:00	88.7	↓-0.5
4/20 03:10	88.2	↓-0.5
4/20 03:20	87.7	↓-0.5
4/20 03:30	87.3	↓-0.4
4/20 03:40	87.0	↓-0.3
4/20 03:50	86.7	↓-0.3
4/20 04:00	86.4	↓-0.3
4/20 04:10	86.2	↓-0.2
4/20 04:20	86.0	↓-0.2
4/20 04:30	85.9	↓-0.1
4/20 04:40	85.9	0	干潮
4/20 04:50	85.9	0
4/20 05:00	86.0	↑0.1
4/20 05:10	86.1	↑0.1
4/20 05:20	86.3	↑0.2
4/20 05:30	86.5	↑0.2
4/20 05:40	86.8	↑0.3
4/20 05:50	87.2	↑0.4
4/20 06:00	87.6	↑0.4
4/20 06:10	88.1	↑0.5
4/20 06:20	88.7	↑0.6
4/20 06:30	89.2	↑0.5
4/20 06:40	89.9	↑0.7
4/20 06:50	90.5	↑0.6
4/20 07:00	91.2	↑0.7
4/20 07:10	91.9	↑0.7
4/20 07:20	92.5	↑0.6
4/20 07:30	93.2	↑0.7
4/20 07:40	93.9	↑0.7
4/20 07:50	94.5	↑0.6
4/20 08:00	95.1	↑0.6
4/20 08:10	95.6	↑0.5
4/20 08:20	96.1	↑0.5
4/20 08:30	96.5	↑0.4
4/20 08:40	96.8	↑0.3
4/20 08:50	97.1	↑0.3
4/20 09:00	97.2	↑0.1
4/20 09:10	97.3	↑0.1	満潮
4/20 09:20	97.4	↑0.1
4/20 09:30	97.3	↓-0.1
4/20 09:40	97.2	↓-0.1
4/20 09:50	97.0	↓-0.2
4/20 10:00	96.7	↓-0.3
4/20 10:10	96.3	↓-0.4
4/20 10:20	95.9	↓-0.4
4/20 10:30	95.4	↓-0.5
4/20 10:40	94.8	↓-0.6
4/20 10:50	94.1	↓-0.7
4/20 11:00	93.4	↓-0.7
4/20 11:10	92.6	↓-0.8
4/20 11:20	91.7	↓-0.9
4/20 11:30	90.7	↓-1.0
4/20 11:40	89.7	↓-1.0
4/20 11:50	88.6	↓-1.1
4/20 12:00	87.4	↓-1.2
4/20 12:10	86.1	↓-1.3
4/20 12:20	84.8	↓-1.3
4/20 12:30	83.4	↓-1.4
4/20 12:40	81.9	↓-1.5
4/20 12:50	80.4	↓-1.5
4/20 13:00	78.8	↓-1.6
4/20 13:10	77.1	↓-1.7
4/20 13:20	75.4	↓-1.7
4/20 13:30	73.7	↓-1.7
4/20 13:40	71.9	↓-1.8
4/20 13:50	70.2	↓-1.7
4/20 14:00	68.4	↓-1.8
4/20 14:10	66.6	↓-1.8
4/20 14:20	64.8	↓-1.8
4/20 14:30	63.1	↓-1.7
4/20 14:40	61.4	↓-1.7
4/20 14:50	59.7	↓-1.7
4/20 15:00	58.1	↓-1.6
4/20 15:10	56.6	↓-1.5
4/20 15:20	55.2	↓-1.4
4/20 15:30	53.8	↓-1.4
4/20 15:40	52.6	↓-1.2
4/20 15:50	51.4	↓-1.2
4/20 16:00	50.4	↓-1.0
4/20 16:10	49.5	↓-0.9
4/20 16:20	48.7	↓-0.8
4/20 16:30	48.1	↓-0.6
4/20 16:40	47.6	↓-0.5
4/20 16:50	47.3	↓-0.3
4/20 17:00	47.1	↓-0.2	干潮
4/20 17:10	47.1	0
4/20 17:20	47.2	↑0.1
4/20 17:30	47.5	↑0.3
4/20 17:40	48.0	↑0.5
4/20 17:50	48.6	↑0.6
4/20 18:00	49.4	↑0.8
4/20 18:10	50.4	↑1.0
4/20 18:20	51.5	↑1.1
4/20 18:30	52.8	↑1.3
4/20 18:40	54.2	↑1.4
4/20 18:50	55.7	↑1.5
4/20 19:00	57.3	↑1.6
4/20 19:10	59.1	↑1.8
4/20 19:20	60.9	↑1.8
4/20 19:30	62.9	↑2.0
4/20 19:40	64.9	↑2.0
4/20 19:50	67.0	↑2.1
4/20 20:00	69.1	↑2.1
4/20 20:10	71.2	↑2.1
4/20 20:20	73.4	↑2.2	最大潮位差
4/20 20:30	75.6	↑2.2	最大潮位差
4/20 20:40	77.7	↑2.1
4/20 20:50	79.9	↑2.2	最大潮位差
4/20 21:00	82.0	↑2.1
4/20 21:10	84.0	↑2.0
4/20 21:20	86.0	↑2.0
4/20 21:30	87.9	↑1.9
4/20 21:40	89.8	↑1.9
4/20 21:50	91.5	↑1.7
4/20 22:00	93.2	↑1.7
4/20 22:10	94.7	↑1.5
4/20 22:20	96.2	↑1.5
4/20 22:30	97.5	↑1.3
4/20 22:40	98.7	↑1.2
4/20 22:50	99.8	↑1.1
4/20 23:00	100.8	↑1.0
4/20 23:10	101.7	↑0.9
4/20 23:20	102.4	↑0.7
4/20 23:30	103.0	↑0.6
4/20 23:40	103.5	↑0.5
4/20 23:50	103.8	↑0.3