31 (月)	16:05	06:40	23:00	18:00
	21cm	2cm	23cm	20cm
中潮 出 07:07 入 16:08 出 02:38 入 12:22 潮干狩り ○ 07:07～09:11

留萌（北海道）2029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	18.8	↓-0.4
12/31 00:10	18.5	↓-0.3
12/31 00:20	18.1	↓-0.4
12/31 00:30	17.6	↓-0.5
12/31 00:40	17.2	↓-0.4
12/31 00:50	16.7	↓-0.5
12/31 01:00	16.2	↓-0.5
12/31 01:10	15.6	↓-0.6
12/31 01:20	15.1	↓-0.5
12/31 01:30	14.5	↓-0.6
12/31 01:40	14.0	↓-0.5
12/31 01:50	13.4	↓-0.6
12/31 02:00	12.8	↓-0.6
12/31 02:10	12.2	↓-0.6
12/31 02:20	11.7	↓-0.5
12/31 02:30	11.1	↓-0.6
12/31 02:40	10.5	↓-0.6
12/31 02:50	10.0	↓-0.5
12/31 03:00	9.4	↓-0.6
12/31 03:10	8.8	↓-0.6
12/31 03:20	8.3	↓-0.5
12/31 03:30	7.7	↓-0.6
12/31 03:40	7.2	↓-0.5
12/31 03:50	6.7	↓-0.5
12/31 04:00	6.1	↓-0.6
12/31 04:10	5.6	↓-0.5
12/31 04:20	5.1	↓-0.5
12/31 04:30	4.7	↓-0.4
12/31 04:40	4.2	↓-0.5
12/31 04:50	3.8	↓-0.4
12/31 05:00	3.4	↓-0.4
12/31 05:10	3.0	↓-0.4
12/31 05:20	2.6	↓-0.4
12/31 05:30	2.3	↓-0.3
12/31 05:40	2.0	↓-0.3
12/31 05:50	1.8	↓-0.2
12/31 06:00	1.6	↓-0.2
12/31 06:10	1.4	↓-0.2
12/31 06:20	1.3	↓-0.1
12/31 06:30	1.3	0	干潮
12/31 06:40	1.2	↓-0.1	干潮
12/31 06:50	1.3	↑0.1
12/31 07:00	1.3	0
12/31 07:10	1.5	↑0.2
12/31 07:20	1.6	↑0.1
12/31 07:30	1.8	↑0.2
12/31 07:40	2.0	↑0.2
12/31 07:50	2.3	↑0.3
12/31 08:00	2.6	↑0.3
12/31 08:10	3.0	↑0.4
12/31 08:20	3.4	↑0.4
12/31 08:30	3.8	↑0.4
12/31 08:40	4.2	↑0.4
12/31 08:50	4.7	↑0.5
12/31 09:00	5.2	↑0.5
12/31 09:10	5.7	↑0.5
12/31 09:20	6.2	↑0.5
12/31 09:30	6.8	↑0.6
12/31 09:40	7.4	↑0.6
12/31 09:50	8.0	↑0.6
12/31 10:00	8.6	↑0.6
12/31 10:10	9.2	↑0.6
12/31 10:20	9.9	↑0.7	最大潮位差
12/31 10:30	10.5	↑0.6
12/31 10:40	11.2	↑0.7	最大潮位差
12/31 10:50	11.8	↑0.6
12/31 11:00	12.4	↑0.6
12/31 11:10	13.0	↑0.6
12/31 11:20	13.6	↑0.6
12/31 11:30	14.2	↑0.6
12/31 11:40	14.8	↑0.6
12/31 11:50	15.3	↑0.5
12/31 12:00	15.8	↑0.5
12/31 12:10	16.3	↑0.5
12/31 12:20	16.7	↑0.4
12/31 12:30	17.1	↑0.4
12/31 12:40	17.5	↑0.4
12/31 12:50	17.8	↑0.3
12/31 13:00	18.1	↑0.3
12/31 13:10	18.4	↑0.3
12/31 13:20	18.6	↑0.2
12/31 13:30	18.8	↑0.2
12/31 13:40	19.0	↑0.2
12/31 13:50	19.2	↑0.2
12/31 14:00	19.3	↑0.1
12/31 14:10	19.5	↑0.2
12/31 14:20	19.6	↑0.1
12/31 14:30	19.7	↑0.1
12/31 14:40	19.8	↑0.1
12/31 14:50	19.9	↑0.1
12/31 15:00	20.0	↑0.1
12/31 15:10	20.0	0
12/31 15:20	20.1	↑0.1
12/31 15:30	20.1	0
12/31 15:40	20.1	0
12/31 15:50	20.2	↑0.1
12/31 16:00	20.2	0	満潮
12/31 16:10	20.2	0
12/31 16:20	20.2	0
12/31 16:30	20.1	↓-0.1
12/31 16:40	20.1	0
12/31 16:50	20.1	0
12/31 17:00	20.1	0
12/31 17:10	20.0	↓-0.1
12/31 17:20	20.0	0
12/31 17:30	20.0	0
12/31 17:40	19.9	↓-0.1
12/31 17:50	19.9	0	干潮
12/31 18:00	19.9	0	干潮
12/31 18:10	19.9	0
12/31 18:20	19.9	0
12/31 18:30	20.0	↑0.1
12/31 18:40	20.0	0
12/31 18:50	20.1	↑0.1
12/31 19:00	20.2	↑0.1
12/31 19:10	20.2	0
12/31 19:20	20.3	↑0.1
12/31 19:30	20.4	↑0.1
12/31 19:40	20.5	↑0.1
12/31 19:50	20.7	↑0.2
12/31 20:00	20.8	↑0.1
12/31 20:10	20.9	↑0.1
12/31 20:20	21.0	↑0.1
12/31 20:30	21.2	↑0.2
12/31 20:40	21.3	↑0.1
12/31 20:50	21.4	↑0.1
12/31 21:00	21.5	↑0.1
12/31 21:10	21.6	↑0.1
12/31 21:20	21.7	↑0.1
12/31 21:30	21.8	↑0.1
12/31 21:40	21.9	↑0.1
12/31 21:50	22.0	↑0.1
12/31 22:00	22.1	↑0.1
12/31 22:10	22.2	↑0.1
12/31 22:20	22.2	0
12/31 22:30	22.3	↑0.1
12/31 22:40	22.3	0
12/31 22:50	22.3	0	満潮
12/31 23:00	22.4	↑0.1	満潮
12/31 23:10	22.3	↓-0.1
12/31 23:20	22.3	0
12/31 23:30	22.2	↓-0.1
12/31 23:40	22.1	↓-0.1
12/31 23:50	22.0	↓-0.1