31 (金)	16:01	07:51	-	20:00
	23cm	-1cm	-	20cm
中潮 出 07:07 入 16:08 出 03:58 入 13:32 潮干狩り ◎ 07:07～10:49

留萌（北海道）2021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	19.9	0
12/31 00:10	19.8	↓-0.1
12/31 00:20	19.7	↓-0.1
12/31 00:30	19.6	↓-0.1
12/31 00:40	19.5	↓-0.1
12/31 00:50	19.3	↓-0.2
12/31 01:00	19.0	↓-0.3
12/31 01:10	18.7	↓-0.3
12/31 01:20	18.4	↓-0.3
12/31 01:30	18.0	↓-0.4
12/31 01:40	17.6	↓-0.4
12/31 01:50	17.1	↓-0.5
12/31 02:00	16.6	↓-0.5
12/31 02:10	16.1	↓-0.5
12/31 02:20	15.5	↓-0.6
12/31 02:30	14.9	↓-0.6
12/31 02:40	14.3	↓-0.6
12/31 02:50	13.7	↓-0.6
12/31 03:00	13.1	↓-0.6
12/31 03:10	12.4	↓-0.7
12/31 03:20	11.7	↓-0.7
12/31 03:30	11.1	↓-0.6
12/31 03:40	10.4	↓-0.7
12/31 03:50	9.7	↓-0.7
12/31 04:00	9.0	↓-0.7
12/31 04:10	8.3	↓-0.7
12/31 04:20	7.6	↓-0.7
12/31 04:30	6.9	↓-0.7
12/31 04:40	6.3	↓-0.6
12/31 04:50	5.6	↓-0.7
12/31 05:00	4.9	↓-0.7
12/31 05:10	4.2	↓-0.7
12/31 05:20	3.6	↓-0.6
12/31 05:30	3.0	↓-0.6
12/31 05:40	2.4	↓-0.6
12/31 05:50	1.8	↓-0.6
12/31 06:00	1.2	↓-0.6
12/31 06:10	0.7	↓-0.5
12/31 06:20	0.2	↓-0.5
12/31 06:30	-0.2	↓-0.4
12/31 06:40	-0.6	↓-0.4
12/31 06:50	-1.0	↓-0.4
12/31 07:00	-1.3	↓-0.3
12/31 07:10	-1.6	↓-0.3
12/31 07:20	-1.7	↓-0.1
12/31 07:30	-1.9	↓-0.2
12/31 07:40	-2.0	↓-0.1
12/31 07:50	-2.0	0	干潮
12/31 08:00	-2.0	0
12/31 08:10	-1.9	↑0.1
12/31 08:20	-1.7	↑0.2
12/31 08:30	-1.6	↑0.1
12/31 08:40	-1.3	↑0.3
12/31 08:50	-1.0	↑0.3
12/31 09:00	-0.7	↑0.3
12/31 09:10	-0.3	↑0.4
12/31 09:20	0.2	↑0.5
12/31 09:30	0.6	↑0.4
12/31 09:40	1.2	↑0.6
12/31 09:50	1.7	↑0.5
12/31 10:00	2.3	↑0.6
12/31 10:10	3.0	↑0.7
12/31 10:20	3.6	↑0.6
12/31 10:30	4.3	↑0.7
12/31 10:40	5.1	↑0.8
12/31 10:50	5.9	↑0.8
12/31 11:00	6.6	↑0.7
12/31 11:10	7.5	↑0.9	最大潮位差
12/31 11:20	8.3	↑0.8
12/31 11:30	9.2	↑0.9	最大潮位差
12/31 11:40	10.0	↑0.8
12/31 11:50	10.9	↑0.9	最大潮位差
12/31 12:00	11.7	↑0.8
12/31 12:10	12.6	↑0.9	最大潮位差
12/31 12:20	13.4	↑0.8
12/31 12:30	14.2	↑0.8
12/31 12:40	15.0	↑0.8
12/31 12:50	15.8	↑0.8
12/31 13:00	16.5	↑0.7
12/31 13:10	17.2	↑0.7
12/31 13:20	17.8	↑0.6
12/31 13:30	18.4	↑0.6
12/31 13:40	19.0	↑0.6
12/31 13:50	19.5	↑0.5
12/31 14:00	19.9	↑0.4
12/31 14:10	20.3	↑0.4
12/31 14:20	20.7	↑0.4
12/31 14:30	21.0	↑0.3
12/31 14:40	21.3	↑0.3
12/31 14:50	21.5	↑0.2
12/31 15:00	21.7	↑0.2
12/31 15:10	21.9	↑0.2
12/31 15:20	22.0	↑0.1
12/31 15:30	22.1	↑0.1
12/31 15:40	22.2	↑0.1
12/31 15:50	22.2	0
12/31 16:00	22.2	0	満潮
12/31 16:10	22.2	0
12/31 16:20	22.2	0
12/31 16:30	22.1	↓-0.1
12/31 16:40	22.0	↓-0.1
12/31 16:50	21.9	↓-0.1
12/31 17:00	21.8	↓-0.1
12/31 17:10	21.7	↓-0.1
12/31 17:20	21.5	↓-0.2
12/31 17:30	21.3	↓-0.2
12/31 17:40	21.2	↓-0.1
12/31 17:50	21.0	↓-0.2
12/31 18:00	20.8	↓-0.2
12/31 18:10	20.6	↓-0.2
12/31 18:20	20.4	↓-0.2
12/31 18:30	20.2	↓-0.2
12/31 18:40	20.1	↓-0.1
12/31 18:50	19.9	↓-0.2
12/31 19:00	19.8	↓-0.1
12/31 19:10	19.7	↓-0.1
12/31 19:20	19.6	↓-0.1
12/31 19:30	19.5	↓-0.1
12/31 19:40	19.4	↓-0.1
12/31 19:50	19.4	0	干潮
12/31 20:00	19.4	0	干潮
12/31 20:10	19.4	0
12/31 20:20	19.4	0
12/31 20:30	19.5	↑0.1
12/31 20:40	19.6	↑0.1
12/31 20:50	19.6	0
12/31 21:00	19.7	↑0.1
12/31 21:10	19.9	↑0.2
12/31 21:20	20.0	↑0.1
12/31 21:30	20.1	↑0.1
12/31 21:40	20.2	↑0.1
12/31 21:50	20.4	↑0.2
12/31 22:00	20.5	↑0.1
12/31 22:10	20.7	↑0.2
12/31 22:20	20.8	↑0.1
12/31 22:30	21.0	↑0.2
12/31 22:40	21.2	↑0.2
12/31 22:50	21.3	↑0.1
12/31 23:00	21.5	↑0.2
12/31 23:10	21.6	↑0.1
12/31 23:20	21.8	↑0.2
12/31 23:30	21.9	↑0.1
12/31 23:40	22.0	↑0.1
12/31 23:50	22.2	↑0.2