20 (日)	04:27	11:38	18:32	23:17
	155cm	-4cm	130cm	93cm
中潮 出 04:44 入 18:17 出 22:49 入 06:51 潮干狩り ◎ 09:09～14:08

東静内（北海道）2003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	88.2	↑1.8
4/20 00:10	90.1	↑1.9
4/20 00:20	92.3	↑2.2
4/20 00:30	94.8	↑2.5
4/20 00:40	97.4	↑2.6
4/20 00:50	100.2	↑2.8
4/20 01:00	103.2	↑3.0
4/20 01:10	106.4	↑3.2
4/20 01:20	109.6	↑3.2
4/20 01:30	113.0	↑3.4
4/20 01:40	116.4	↑3.4
4/20 01:50	119.8	↑3.4
4/20 02:00	123.3	↑3.5
4/20 02:10	126.7	↑3.4
4/20 02:20	130.0	↑3.3
4/20 02:30	133.3	↑3.3
4/20 02:40	136.4	↑3.1
4/20 02:50	139.4	↑3.0
4/20 03:00	142.2	↑2.8
4/20 03:10	144.8	↑2.6
4/20 03:20	147.2	↑2.4
4/20 03:30	149.3	↑2.1
4/20 03:40	151.1	↑1.8
4/20 03:50	152.6	↑1.5
4/20 04:00	153.7	↑1.1
4/20 04:10	154.5	↑0.8
4/20 04:20	154.9	↑0.4	満潮
4/20 04:30	154.9	0
4/20 04:40	154.6	↓-0.3
4/20 04:50	153.8	↓-0.8
4/20 05:00	152.6	↓-1.2
4/20 05:10	151.1	↓-1.5
4/20 05:20	149.1	↓-2.0
4/20 05:30	146.7	↓-2.4
4/20 05:40	144.0	↓-2.7
4/20 05:50	140.8	↓-3.2
4/20 06:00	137.3	↓-3.5
4/20 06:10	133.5	↓-3.8
4/20 06:20	129.3	↓-4.2
4/20 06:30	124.9	↓-4.4
4/20 06:40	120.1	↓-4.8
4/20 06:50	115.1	↓-5.0
4/20 07:00	109.9	↓-5.2
4/20 07:10	104.5	↓-5.4
4/20 07:20	99.0	↓-5.5
4/20 07:30	93.3	↓-5.7
4/20 07:40	87.5	↓-5.8
4/20 07:50	81.7	↓-5.8
4/20 08:00	75.8	↓-5.9	最大潮位差
4/20 08:10	69.9	↓-5.9	最大潮位差
4/20 08:20	64.1	↓-5.8
4/20 08:30	58.3	↓-5.8
4/20 08:40	52.6	↓-5.7
4/20 08:50	47.1	↓-5.5
4/20 09:00	41.7	↓-5.4
4/20 09:10	36.5	↓-5.2
4/20 09:20	31.5	↓-5.0
4/20 09:30	26.8	↓-4.7
4/20 09:40	22.3	↓-4.5
4/20 09:50	18.1	↓-4.2
4/20 10:00	14.2	↓-3.9
4/20 10:10	10.6	↓-3.6
4/20 10:20	7.4	↓-3.2
4/20 10:30	4.6	↓-2.8
4/20 10:40	2.1	↓-2.5
4/20 10:50	0.0	↓-2.1
4/20 11:00	-1.7	0
4/20 11:10	-3.0	↓-1.3
4/20 11:20	-3.9	↓-0.9
4/20 11:30	-4.4	↓-0.5	干潮
4/20 11:40	-4.5	↓-0.1
4/20 11:50	-4.1	↑0.4
4/20 12:00	-3.4	↑0.7
4/20 12:10	-2.2	↑1.2
4/20 12:20	-0.6	↑1.6
4/20 12:30	1.3	↑1.9
4/20 12:40	3.6	↑2.3
4/20 12:50	6.3	↑2.7
4/20 13:00	9.3	↑3.0
4/20 13:10	12.7	↑3.4
4/20 13:20	16.4	↑3.7
4/20 13:30	20.3	↑3.9
4/20 13:40	24.5	↑4.2
4/20 13:50	29.0	↑4.5
4/20 14:00	33.6	↑4.6
4/20 14:10	38.5	↑4.9
4/20 14:20	43.4	↑4.9
4/20 14:30	48.5	↑5.1
4/20 14:40	53.7	↑5.2
4/20 14:50	58.9	↑5.2
4/20 15:00	64.1	↑5.2
4/20 15:10	69.3	↑5.2
4/20 15:20	74.4	↑5.1
4/20 15:30	79.5	↑5.1
4/20 15:40	84.4	↑4.9
4/20 15:50	89.2	↑4.8
4/20 16:00	93.9	↑4.7
4/20 16:10	98.3	↑4.4
4/20 16:20	102.5	↑4.2
4/20 16:30	106.4	↑3.9
4/20 16:40	110.1	↑3.7
4/20 16:50	113.5	↑3.4
4/20 17:00	116.6	↑3.1
4/20 17:10	119.3	↑2.7
4/20 17:20	121.8	↑2.5
4/20 17:30	123.9	↑2.1
4/20 17:40	125.7	↑1.8
4/20 17:50	127.1	↑1.4
4/20 18:00	128.2	↑1.1
4/20 18:10	129.0	↑0.8
4/20 18:20	129.5	↑0.5
4/20 18:30	129.7	↑0.2	満潮
4/20 18:40	129.6	↓-0.1
4/20 18:50	129.2	↓-0.4
4/20 19:00	128.5	↓-0.7
4/20 19:10	127.7	↓-0.8
4/20 19:20	126.6	↓-1.1
4/20 19:30	125.3	↓-1.3
4/20 19:40	123.8	↓-1.5
4/20 19:50	122.2	↓-1.6
4/20 20:00	120.4	↓-1.8
4/20 20:10	118.6	↓-1.8
4/20 20:20	116.6	↓-2.0
4/20 20:30	114.7	↓-1.9
4/20 20:40	112.7	↓-2.0
4/20 20:50	110.6	↓-2.1
4/20 21:00	108.6	↓-2.0
4/20 21:10	106.7	↓-1.9
4/20 21:20	104.8	↓-1.9
4/20 21:30	102.9	↓-1.9
4/20 21:40	101.2	↓-1.7
4/20 21:50	99.6	↓-1.6
4/20 22:00	98.1	↓-1.5
4/20 22:10	96.8	↓-1.3
4/20 22:20	95.6	↓-1.2
4/20 22:30	94.6	↓-1.0
4/20 22:40	93.7	↓-0.9
4/20 22:50	93.1	↓-0.6
4/20 23:00	92.7	↓-0.4
4/20 23:10	92.4	↓-0.3	干潮
4/20 23:20	92.4	0
4/20 23:30	92.6	↑0.2
4/20 23:40	93.1	↑0.5
4/20 23:50	93.7	↑0.6