31 (火)	09:09	02:28	21:06	15:27
	162cm	46cm	134cm	74cm
小潮 出 06:50 入 16:40 出 10:55 入 23:56

第一海堡（千葉）2030年12月31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
12/31 00:00	78.9	↓-3.9
12/31 00:10	75.0	↓-3.9
12/31 00:20	71.3	↓-3.7
12/31 00:30	67.8	↓-3.5
12/31 00:40	64.5	↓-3.3
12/31 00:50	61.3	↓-3.2
12/31 01:00	58.4	↓-2.9
12/31 01:10	55.8	↓-2.6
12/31 01:20	53.5	↓-2.3
12/31 01:30	51.4	↓-2.1
12/31 01:40	49.6	↓-1.8
12/31 01:50	48.2	↓-1.4
12/31 02:00	47.1	↓-1.1
12/31 02:10	46.3	↓-0.8
12/31 02:20	45.9	↓-0.4	干潮
12/31 02:30	45.9	0
12/31 02:40	46.2	↑0.3
12/31 02:50	46.8	↑0.6
12/31 03:00	47.8	↑1.0
12/31 03:10	49.1	↑1.3
12/31 03:20	50.8	↑1.7
12/31 03:30	52.8	↑2.0
12/31 03:40	55.2	↑2.4
12/31 03:50	57.8	↑2.6
12/31 04:00	60.7	↑2.9
12/31 04:10	63.9	↑3.2
12/31 04:20	67.3	↑3.4
12/31 04:30	71.0	↑3.7
12/31 04:40	74.8	↑3.8
12/31 04:50	78.8	↑4.0
12/31 05:00	83.0	↑4.2
12/31 05:10	87.3	↑4.3
12/31 05:20	91.8	↑4.5
12/31 05:30	96.3	↑4.5
12/31 05:40	100.8	↑4.5
12/31 05:50	105.3	↑4.5
12/31 06:00	109.9	↑4.6	最大潮位差
12/31 06:10	114.4	↑4.5
12/31 06:20	118.8	↑4.4
12/31 06:30	123.1	↑4.3
12/31 06:40	127.3	↑4.2
12/31 06:50	131.4	↑4.1
12/31 07:00	135.2	↑3.8
12/31 07:10	138.9	↑3.7
12/31 07:20	142.4	↑3.5
12/31 07:30	145.6	↑3.2
12/31 07:40	148.6	↑3.0
12/31 07:50	151.2	↑2.6
12/31 08:00	153.6	↑2.4
12/31 08:10	155.7	↑2.1
12/31 08:20	157.5	↑1.8
12/31 08:30	158.9	↑1.4
12/31 08:40	160.1	↑1.2
12/31 08:50	160.9	↑0.8
12/31 09:00	161.3	↑0.4	満潮
12/31 09:10	161.4	↑0.1
12/31 09:20	161.2	↓-0.2
12/31 09:30	160.7	↓-0.5
12/31 09:40	159.8	↓-0.9
12/31 09:50	158.6	↓-1.2
12/31 10:00	157.1	↓-1.5
12/31 10:10	155.4	↓-1.7
12/31 10:20	153.3	↓-2.1
12/31 10:30	151.0	↓-2.3
12/31 10:40	148.5	↓-2.5
12/31 10:50	145.7	↓-2.8
12/31 11:00	142.8	↓-2.9
12/31 11:10	139.6	↓-3.2
12/31 11:20	136.3	↓-3.3
12/31 11:30	132.9	↓-3.4
12/31 11:40	129.4	↓-3.5
12/31 11:50	125.8	↓-3.6
12/31 12:00	122.2	↓-3.6
12/31 12:10	118.5	↓-3.7
12/31 12:20	114.9	↓-3.6
12/31 12:30	111.2	↓-3.7
12/31 12:40	107.6	↓-3.6
12/31 12:50	104.1	↓-3.5
12/31 13:00	100.7	↓-3.4
12/31 13:10	97.4	↓-3.3
12/31 13:20	94.3	↓-3.1
12/31 13:30	91.3	↓-3.0
12/31 13:40	88.5	↓-2.8
12/31 13:50	85.9	↓-2.6
12/31 14:00	83.5	↓-2.4
12/31 14:10	81.3	↓-2.2
12/31 14:20	79.4	↓-1.9
12/31 14:30	77.8	↓-1.6
12/31 14:40	76.4	↓-1.4
12/31 14:50	75.2	↓-1.2
12/31 15:00	74.4	↓-0.8
12/31 15:10	73.8	↓-0.6
12/31 15:20	73.5	↓-0.3	干潮
12/31 15:30	73.5	0
12/31 15:40	73.8	↑0.3
12/31 15:50	74.3	↑0.5
12/31 16:00	75.1	↑0.8
12/31 16:10	76.1	↑1.0
12/31 16:20	77.4	↑1.3
12/31 16:30	78.9	↑1.5
12/31 16:40	80.6	↑1.7
12/31 16:50	82.5	↑1.9
12/31 17:00	84.6	↑2.1
12/31 17:10	86.8	↑2.2
12/31 17:20	89.2	↑2.4
12/31 17:30	91.7	↑2.5
12/31 17:40	94.2	↑2.5
12/31 17:50	96.9	↑2.7
12/31 18:00	99.6	↑2.7
12/31 18:10	102.4	↑2.8
12/31 18:20	105.1	↑2.7
12/31 18:30	107.8	↑2.7
12/31 18:40	110.5	↑2.7
12/31 18:50	113.2	↑2.7
12/31 19:00	115.7	↑2.5
12/31 19:10	118.2	↑2.5
12/31 19:20	120.5	↑2.3
12/31 19:30	122.7	↑2.2
12/31 19:40	124.7	↑2.0
12/31 19:50	126.5	↑1.8
12/31 20:00	128.2	↑1.7
12/31 20:10	129.6	↑1.4
12/31 20:20	130.8	↑1.2
12/31 20:30	131.8	↑1.0
12/31 20:40	132.5	↑0.7
12/31 20:50	133.0	↑0.5
12/31 21:00	133.3	↑0.3	満潮
12/31 21:10	133.3	0
12/31 21:20	133.0	↓-0.3
12/31 21:30	132.5	↓-0.5
12/31 21:40	131.8	↓-0.7
12/31 21:50	130.8	↓-1.0
12/31 22:00	129.5	↓-1.3
12/31 22:10	128.0	↓-1.5
12/31 22:20	126.3	↓-1.7
12/31 22:30	124.4	↓-1.9
12/31 22:40	122.3	↓-2.1
12/31 22:50	120.1	↓-2.2
12/31 23:00	117.6	↓-2.5
12/31 23:10	115.0	↓-2.6
12/31 23:20	112.3	↓-2.7
12/31 23:30	109.5	↓-2.8
12/31 23:40	106.6	↓-2.9
12/31 23:50	103.6	↓-3.0