20 (月)	11:43	05:49	-	18:08
	173cm	53cm	-	27cm
中潮 出 05:46 入 18:59 出 08:57 入 23:20 潮干狩り ○ 16:38～18:59

島山（長崎）2037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	182.7	↓-0.3
4/20 00:10	181.9	↓-0.8
4/20 00:20	180.6	↓-1.3
4/20 00:30	178.8	↓-1.8
4/20 00:40	176.5	↓-2.3
4/20 00:50	173.8	↓-2.7
4/20 01:00	170.6	↓-3.2
4/20 01:10	167.0	↓-3.6
4/20 01:20	163.0	↓-4.0
4/20 01:30	158.7	↓-4.3
4/20 01:40	154.1	↓-4.6
4/20 01:50	149.2	↓-4.9
4/20 02:00	144.1	↓-5.1
4/20 02:10	138.7	↓-5.4
4/20 02:20	133.2	↓-5.5
4/20 02:30	127.6	↓-5.6
4/20 02:40	122.0	↓-5.6
4/20 02:50	116.3	↓-5.7
4/20 03:00	110.6	↓-5.7
4/20 03:10	105.0	↓-5.6
4/20 03:20	99.5	↓-5.5
4/20 03:30	94.2	↓-5.3
4/20 03:40	89.0	↓-5.2
4/20 03:50	84.0	↓-5.0
4/20 04:00	79.4	↓-4.6
4/20 04:10	75.0	↓-4.4
4/20 04:20	70.9	↓-4.1
4/20 04:30	67.2	↓-3.7
4/20 04:40	63.9	↓-3.3
4/20 04:50	61.0	↓-2.9
4/20 05:00	58.5	↓-2.5
4/20 05:10	56.5	↓-2.0
4/20 05:20	54.9	↓-1.6
4/20 05:30	53.8	↓-1.1
4/20 05:40	53.2	↓-0.6	干潮
4/20 05:50	53.0	↓-0.2
4/20 06:00	53.3	↑0.3
4/20 06:10	54.1	↑0.8
4/20 06:20	55.4	↑1.3
4/20 06:30	57.1	↑1.7
4/20 06:40	59.2	↑2.1
4/20 06:50	61.8	↑2.6
4/20 07:00	64.7	↑2.9
4/20 07:10	68.1	↑3.4
4/20 07:20	71.8	↑3.7
4/20 07:30	75.8	↑4.0
4/20 07:40	80.1	↑4.3
4/20 07:50	84.7	↑4.6
4/20 08:00	89.4	↑4.7
4/20 08:10	94.4	↑5.0
4/20 08:20	99.5	↑5.1
4/20 08:30	104.7	↑5.2
4/20 08:40	110.0	↑5.3
4/20 08:50	115.3	↑5.3
4/20 09:00	120.5	↑5.2
4/20 09:10	125.7	↑5.2
4/20 09:20	130.8	↑5.1
4/20 09:30	135.8	↑5.0
4/20 09:40	140.6	↑4.8
4/20 09:50	145.2	↑4.6
4/20 10:00	149.5	↑4.3
4/20 10:10	153.5	↑4.0
4/20 10:20	157.2	↑3.7
4/20 10:30	160.6	↑3.4
4/20 10:40	163.6	↑3.0
4/20 10:50	166.2	↑2.6
4/20 11:00	168.4	↑2.2
4/20 11:10	170.1	↑1.7
4/20 11:20	171.4	↑1.3
4/20 11:30	172.2	↑0.8
4/20 11:40	172.6	↑0.4	満潮
4/20 11:50	172.5	↓-0.1
4/20 12:00	171.9	↓-0.6
4/20 12:10	170.8	↓-1.1
4/20 12:20	169.2	↓-1.6
4/20 12:30	167.2	↓-2.0
4/20 12:40	164.8	↓-2.4
4/20 12:50	161.9	↓-2.9
4/20 13:00	158.5	↓-3.4
4/20 13:10	154.8	↓-3.7
4/20 13:20	150.7	↓-4.1
4/20 13:30	146.3	↓-4.4
4/20 13:40	141.6	↓-4.7
4/20 13:50	136.5	↓-5.1
4/20 14:00	131.2	↓-5.3
4/20 14:10	125.7	↓-5.5
4/20 14:20	120.1	↓-5.6
4/20 14:30	114.2	↓-5.9
4/20 14:40	108.3	↓-5.9
4/20 14:50	102.4	↓-5.9
4/20 15:00	96.4	↓-6.0	最大潮位差
4/20 15:10	90.4	↓-6.0	最大潮位差
4/20 15:20	84.5	↓-5.9
4/20 15:30	78.7	↓-5.8
4/20 15:40	73.0	↓-5.7
4/20 15:50	67.5	↓-5.5
4/20 16:00	62.2	↓-5.3
4/20 16:10	57.2	↓-5.0
4/20 16:20	52.4	↓-4.8
4/20 16:30	48.0	↓-4.4
4/20 16:40	43.9	↓-4.1
4/20 16:50	40.2	↓-3.7
4/20 17:00	36.8	↓-3.4
4/20 17:10	33.9	↓-2.9
4/20 17:20	31.5	↓-2.4
4/20 17:30	29.4	↓-2.1
4/20 17:40	27.9	↓-1.5
4/20 17:50	26.8	↓-1.1
4/20 18:00	26.2	↓-0.6	干潮
4/20 18:10	26.1	↓-0.1
4/20 18:20	26.5	↑0.4
4/20 18:30	27.3	↑0.8
4/20 18:40	28.6	↑1.3
4/20 18:50	30.4	↑1.8
4/20 19:00	32.6	↑2.2
4/20 19:10	35.3	↑2.7
4/20 19:20	38.4	↑3.1
4/20 19:30	41.9	↑3.5
4/20 19:40	45.7	↑3.8
4/20 19:50	49.9	↑4.2
4/20 20:00	54.4	↑4.5
4/20 20:10	59.1	↑4.7
4/20 20:20	64.2	↑5.1
4/20 20:30	69.4	↑5.2
4/20 20:40	74.8	↑5.4
4/20 20:50	80.4	↑5.6
4/20 21:00	86.0	↑5.6
4/20 21:10	91.7	↑5.7
4/20 21:20	97.5	↑5.8
4/20 21:30	103.2	↑5.7
4/20 21:40	108.9	↑5.7
4/20 21:50	114.5	↑5.6
4/20 22:00	120.0	↑5.5
4/20 22:10	125.4	↑5.4
4/20 22:20	130.5	↑5.1
4/20 22:30	135.4	↑4.9
4/20 22:40	140.1	↑4.7
4/20 22:50	144.5	↑4.4
4/20 23:00	148.6	↑4.1
4/20 23:10	152.3	↑3.7
4/20 23:20	155.7	↑3.4
4/20 23:30	158.8	↑3.1
4/20 23:40	161.4	↑2.6
4/20 23:50	163.6	↑2.2