指定気圧面の観測データ（日ごとの値）
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南大東島 2024年4月21時 地上
| 日 | 気圧(hPa) | 高度(m) | 気温(℃) | 相対湿度(%) | 風速(m/s) | 風向(°) |
|---|---|---|---|---|---|---|
| 1 | 1014.9 | 17 | 21.0 | 82 | 4.6 | 70 |
| 2 | 1014.2 | 17 | 23.0 | 96 | 3.7 | 160 |
| 3 | 1012.7 | 17 | 24.1 | 95 | 3.9 | 210 |
| 4 | 1013.8 | 17 | 24.1 | 94 | 2.2 | 210 |
| 5 | 1014.0 | 17 | 24.1 | 93 | 3.6 | 200 |
| 6 | 1014.1 | 17 | 24.2 | 92 | 2.1 | 160 |
| 7 | 1013.1 | 17 | 24.5 | 94 | 3.5 | 170 |
| 8 | 1011.6 | 17 | 24.5 | 95 | 4.5 | 190 |
| 9 | 1014.4 | 17 | 21.5 | 75 | 3.4 | 10 |
| 10 | 1017.6 | 17 | 21.5 | 78 | 6.0 | 50 |
| 11 | 1015.1 | 17 | 21.5 | 74 | 2.1 | 360 |
| 12 | 1012.8 | 17 | 21.7 | 86 | 3.1 | 60 |
| 13 | 1013.5 | 17 | 23.4 | 83 | 2.3 | 150 |
| 14 | 1014.4 | 17 | 22.2 | 91 | 5.0 | 110 |
| 15 | 1012.6 | 17 | 23.3 | 94 | 5.5 | 180 |
| 16 | 1010.8 | 17 | 22.9 | 94 | 0.7 | 90 |
| 17 | 1008.5 | 17 | 23.6 | 96 | 2.9 | 220 |
| 18 | 1008.2 | 17 | 21.7 | 80 | 4.2 | 10 |
| 19 | 1012.4 | 17 | 20.9 | 73 | 2.5 | 120 |
| 20 | 1012.6 | 17 | 22.7 | 83 | 4.3 | 140 |
| 21 | 1011.9 | 17 | 23.8 | 96 | 4.6 | 170 |
| 22 | 1011.3 | 17 | 24.4 | 96 | 2.5 | 200 |
| 23 | 1010.4 | 17 | 24.0 | 95 | 5.2 | 170 |
| 24 | 1010.0 | 17 | 23.2 | 94 | 2.9 | 330 |
| 25 | 1009.8 | 17 | 23.6 | 94 | 2.4 | 80 |
| 26 | 1009.2 | 17 | 22.6 | 97 | 0.7 | 290 |
| 27 | 1009.9 | 17 | 23.1 | 97 | 3.5 | 200 |
| 28 | 1012.1 | 17 | 24.6 | 97 | 3.5 | 150 |
| 29 | 1008.6 | 17 | 23.0 | 93 | 3.3 | 230 |
| 30 | 1008.2 | 17 | 25.0 | 98 | 3.7 | 200 |