| 地点名 | 日最高 気温(℃) |
日最低 気温(℃) |
日積算 降水量(mm) |
日最大 風速(m/s) |
日積算 日照時間(時) |
|---|---|---|---|---|---|
| 室蘭 | 26.1 (11:50) | 19.8 (23:00) | 14.5 | 18.3 (01:30) | 3.1 |
| 登別 | 26.0 (12:30) | 17.8 (22:00) | 11.5 | 6.6 (01:10) | 3.9 |
| 伊達 | 26.2 (15:00) | 20.1 (20:40) | 10.5 | 18.1 (01:30) | 3.6 |
| カルルス | --- | --- | 29.5 | --- | --- |
| 川汲 | 25.3 (15:30) | 19.9 (19:40) | 40.0 | 9.9 (01:10) | 4.1 |
| 洞爺湖温泉 | --- | --- | 14.0 | --- | --- |
| 大滝 | 23.7 (14:20) | 16.4 (21:50) | 116.0 | 9.5 (00:40) | 2.4 |
| 森野 | 25.5 (13:10) | 18.3 (20:30) | 28.5 | 8.4 (02:40) | 1.6 |
| 大沼 | --- | --- | 21.0 | --- | --- |
| 白老 | 24.8 (14:20) | 20.0 (23:40) | 13.5 | 22.2 (01:40) | 5.6 |
| 大岸 | 24.6 (01:00) | 17.4 (23:50) | 24.5 | 9.4 (03:30) | 1.0 |
| 戸井泊 | --- | --- | 14.0 | --- | --- |
| 森 | 25.5 (13:40) | 19.0 (20:00) | 19.0 | 10.8 (01:20) | 6.3 |
| 高松 | 25.2 (15:00) | 18.8 (19:20) | 25.0 | 20.5 (00:30) | --- |
| 函館 | 26.2 (16:10) | 19.6 (19:10) | 24.5 | 19.3 (00:30) | 4.2 |
| 北斗 | 27.2 (10:40) | 18.6 (24:00) | 14.0 | 18.7 (00:50) | 5.2 |
| 八雲 | 26.3 (02:30) | 19.2 (20:20) | 26.5 | 10.6 (00:30) | 4.2 |
| 長万部 | 26.3 (13:50) | 17.2 (21:30) | 16.0 | 16.4 (01:30) | 3.4 |
| 苫小牧 | 24.5 (14:20) | 19.9 (21:20) | 12.0 | 21.0 (01:40) | 5.7 |
| 鶉 | 25.7 (02:50) | 19.5 (20:20) | 12.5 | 9.3 (00:40) | 1.9 |
| 今金 | 25.5 (03:00) | 18.9 (24:00) | 45.5 | 8.8 (01:00) | 3.4 |
| 潮見 | --- | --- | 1.0 | --- | --- |
| 木古内 | 26.7 (10:20) | 19.0 (23:50) | 14.5 | 15.4 (01:10) | 4.2 |
| 熊石 | 25.4 (00:20) | 19.4 (19:20) | 12.0 | 15.0 (04:20) | 0.4 |
| 鵡川 | 24.8 (11:10) | 17.8 (22:50) | 16.0 | 14.4 (02:30) | 4.9 |
| せたな | 26.4 (03:10) | 20.7 (19:10) | 51.5 | 11.1 (01:00) | 3.0 |
| 日高門別 | 24.5 (12:00) | 17.8 (22:10) | 10.5 | 16.2 (02:00) | 4.1 |
| 江差 | 26.7 (02:20) | 22.1 (03:50) | 6.0 | 18.8 (04:00) | 5.2 |
| 知内 | --- | --- | 22.5 | --- | --- |
| 厚真 | 26.0 (13:30) | 19.4 (23:20) | 12.0 | 18.1 (03:30) | 4.9 |
| 安平 | --- | --- | 11.0 | --- | --- |
| 静内 | 26.0 (14:50) | 20.4 (19:50) | 7.0 | 12.3 (02:20) | 3.2 |
| 千軒 | --- | --- | 31.5 | --- | --- |
| 奥尻 | 26.0 (14:50) | 21.3 (06:10) | 7.5 | 17.1 (01:30) | 5.5 |
| 石崎 | --- | --- | 13.5 | --- | --- |
| 新和 | 26.0 (13:40) | 19.1 (23:20) | 14.5 | 10.5 (02:50) | 2.1 |
| 穂別 | 25.6 (12:40) | 17.3 (23:50) | 16.0 | 11.4 (02:10) | 1.4 |
| 笹山 | --- | --- | 13.5 | --- | --- |
| 旭 | --- | --- | 27.5 | --- | --- |
| 三石 | 26.2 (15:10) | 17.8 (24:00) | 15.0 | 11.1 (02:40) | 3.2 |
| 松前 | 26.1 (12:10) | 19.2 (18:20) | 18.0 | 16.9 (03:00) | 4.4 |
| 米岡 | 24.0 (01:40) | 21.1 (04:40) | 12.0 | 18.6 (04:10) | --- |
| 仁世宇 | --- | --- | 19.5 | --- | --- |
| 浦河 | 24.4 (13:00) | 20.0 (18:30) | 9.5 | 19.6 (02:10) | 3.7 |
| 日高 | 26.4 (03:40) | 17.8 (24:00) | 17.5 | 9.3 (03:40) | 0.2 |
| 中杵臼 | 25.5 (13:50) | 18.0 (22:00) | 15.0 | 6.4 (02:40) | 1.1 |
| 幌満 | --- | --- | 8.5 | --- | --- |
| 目黒 | --- | --- | 20.5 | --- | --- |
| えりも岬 | 22.8 (15:10) | 18.4 (00:20) | 11.0 | 20.6 (03:10) | 6.1 |
※日最高気温・日最低気温・日最大風速は、アメダス10分値です
台風21号は午前9時温帯低気圧に変わったが、北海道は午前中を中心に暴風が吹き荒れた。最大瞬間風速は倶知安町42.4メートルで1951年の統計開始以来2位。日中は天気が回復した所が多く厳しい残暑が戻った。真夏日地点は5日ぶりに400地点超。