18 (金)	08:48	01:53	-	17:29
	143cm	100cm	-	40cm
小潮 出 06:25 入 17:27 出 01:08 入 10:53

館山（千葉）2028年02月18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
2/18 00:00	102.1	↓-0.3
2/18 00:10	101.8	↓-0.3
2/18 00:20	101.5	↓-0.3
2/18 00:30	101.1	↓-0.4
2/18 00:40	100.8	↓-0.3
2/18 00:50	100.4	↓-0.4
2/18 01:00	100.1	↓-0.3
2/18 01:10	99.8	↓-0.3
2/18 01:20	99.6	↓-0.2
2/18 01:30	99.4	↓-0.2
2/18 01:40	99.2	↓-0.2
2/18 01:50	99.2	0	干潮
2/18 02:00	99.2	0
2/18 02:10	99.3	↑0.1
2/18 02:20	99.5	↑0.2
2/18 02:30	99.8	↑0.3
2/18 02:40	100.2	↑0.4
2/18 02:50	100.7	↑0.5
2/18 03:00	101.2	↑0.5
2/18 03:10	101.9	↑0.7
2/18 03:20	102.6	↑0.7
2/18 03:30	103.4	↑0.8
2/18 03:40	104.3	↑0.9
2/18 03:50	105.3	↑1.0
2/18 04:00	106.3	↑1.0
2/18 04:10	107.4	↑1.1
2/18 04:20	108.6	↑1.2
2/18 04:30	109.8	↑1.2
2/18 04:40	111.1	↑1.3
2/18 04:50	112.5	↑1.4
2/18 05:00	113.9	↑1.4
2/18 05:10	115.3	↑1.4
2/18 05:20	116.8	↑1.5
2/18 05:30	118.4	↑1.6
2/18 05:40	119.9	↑1.5
2/18 05:50	121.5	↑1.6
2/18 06:00	123.2	↑1.7
2/18 06:10	124.8	↑1.6
2/18 06:20	126.5	↑1.7
2/18 06:30	128.1	↑1.6
2/18 06:40	129.8	↑1.7
2/18 06:50	131.3	↑1.5
2/18 07:00	132.9	↑1.6
2/18 07:10	134.3	↑1.4
2/18 07:20	135.7	↑1.4
2/18 07:30	137.0	↑1.3
2/18 07:40	138.2	↑1.2
2/18 07:50	139.2	↑1.0
2/18 08:00	140.1	↑0.9
2/18 08:10	140.9	↑0.8
2/18 08:20	141.4	↑0.5
2/18 08:30	141.9	↑0.5
2/18 08:40	142.1	↑0.2	満潮
2/18 08:50	142.1	0
2/18 09:00	142.0	↓-0.1
2/18 09:10	141.7	↓-0.3
2/18 09:20	141.1	↓-0.6
2/18 09:30	140.4	↓-0.7
2/18 09:40	139.5	↓-0.9
2/18 09:50	138.5	↓-1.0
2/18 10:00	137.3	↓-1.2
2/18 10:10	135.8	↓-1.5
2/18 10:20	134.3	↓-1.5
2/18 10:30	132.5	↓-1.8
2/18 10:40	130.7	↓-1.8
2/18 10:50	128.6	↓-2.1
2/18 11:00	126.5	↓-2.1
2/18 11:10	124.1	↓-2.4
2/18 11:20	121.7	↓-2.4
2/18 11:30	119.1	↓-2.6
2/18 11:40	116.4	↓-2.7
2/18 11:50	113.6	↓-2.8
2/18 12:00	110.8	↓-2.8
2/18 12:10	107.8	↓-3.0
2/18 12:20	104.7	↓-3.1
2/18 12:30	101.6	↓-3.1
2/18 12:40	98.4	↓-3.2
2/18 12:50	95.2	↓-3.2
2/18 13:00	92.0	↓-3.2
2/18 13:10	88.7	↓-3.3	最大潮位差
2/18 13:20	85.5	↓-3.2
2/18 13:30	82.3	↓-3.2
2/18 13:40	79.2	↓-3.1
2/18 13:50	76.1	↓-3.1
2/18 14:00	73.1	↓-3.0
2/18 14:10	70.2	↓-2.9
2/18 14:20	67.4	↓-2.8
2/18 14:30	64.6	↓-2.8
2/18 14:40	62.0	↓-2.6
2/18 14:50	59.6	↓-2.4
2/18 15:00	57.2	↓-2.4
2/18 15:10	55.0	↓-2.2
2/18 15:20	52.9	↓-2.1
2/18 15:30	51.0	↓-1.9
2/18 15:40	49.2	↓-1.8
2/18 15:50	47.5	↓-1.7
2/18 16:00	46.0	↓-1.5
2/18 16:10	44.6	↓-1.4
2/18 16:20	43.4	↓-1.2
2/18 16:30	42.4	↓-1.0
2/18 16:40	41.5	↓-0.9
2/18 16:50	40.7	↓-0.8
2/18 17:00	40.2	↓-0.5
2/18 17:10	39.8	↓-0.4
2/18 17:20	39.5	↓-0.3	干潮
2/18 17:30	39.5	0
2/18 17:40	39.6	↑0.1
2/18 17:50	39.9	↑0.3
2/18 18:00	40.4	↑0.5
2/18 18:10	41.0	↑0.6
2/18 18:20	41.9	↑0.9
2/18 18:30	42.9	↑1.0
2/18 18:40	44.0	↑1.1
2/18 18:50	45.3	↑1.3
2/18 19:00	46.8	↑1.5
2/18 19:10	48.3	↑1.5
2/18 19:20	50.0	↑1.7
2/18 19:30	51.8	↑1.8
2/18 19:40	53.7	↑1.9
2/18 19:50	55.6	↑1.9
2/18 20:00	57.7	↑2.1
2/18 20:10	59.7	↑2.0
2/18 20:20	61.8	↑2.1
2/18 20:30	63.9	↑2.1
2/18 20:40	65.9	↑2.0
2/18 20:50	68.0	↑2.1
2/18 21:00	70.1	↑2.1
2/18 21:10	72.1	↑2.0
2/18 21:20	74.2	↑2.1
2/18 21:30	76.1	↑1.9
2/18 21:40	78.1	↑2.0
2/18 21:50	80.0	↑1.9
2/18 22:00	81.9	↑1.9
2/18 22:10	83.7	↑1.8
2/18 22:20	85.5	↑1.8
2/18 22:30	87.2	↑1.7
2/18 22:40	88.9	↑1.7
2/18 22:50	90.6	↑1.7
2/18 23:00	92.1	↑1.5
2/18 23:10	93.7	↑1.6
2/18 23:20	95.1	↑1.4
2/18 23:30	96.5	↑1.4
2/18 23:40	97.9	↑1.4
2/18 23:50	99.1	↑1.2