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5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 | 1008.8 | 17 | 24.1 | 89 | 2.0 | 270 |
| 2 | 1012.4 | 17 | 22.3 | 95 | 2.4 | 50 |
| 3 | 1012.7 | 17 | 22.8 | 87 | 1.8 | 40 |
| 4 | 1012.9 | 17 | 23.9 | 89 | 3.4 | 80 |
| 5 | 1014.1 | 17 | 24.4 | 92 | 5.1 | 90 |
| 6 | 1012.3 | 17 | 24.6 | 94 | 4.7 | 150 |
| 7 | 1011.9 | 17 | 23.8 | 81 | 5.5 | 10 |
| 8 | 1013.1 | 17 | 22.9 | 73 | 2.9 | 340 |
| 9 | 1015.8 | 17 | 21.0 | 72 | 2.1 | 20 |
| 10 | 1017.7 | 17 | 22.9 | 78 | 4.2 | 70 |
| 11 | 1016.0 | 17 | 23.7 | 83 | 4.1 | 80 |
| 12 | 1011.4 | 17 | 25.1 | 93 | 2.9 | 160 |
| 13 | 1009.7 | 17 | 23.7 | 93 | 1.7 | 360 |
| 14 | 1011.8 | 17 | 24.0 | 94 | 3.1 | 70 |
| 15 | 1011.3 | 17 | 23.5 | 89 | 5.5 | 320 |
| 16 | 1014.8 | 17 | 21.6 | 69 | 4.3 | 30 |
| 17 | 1013.6 | 17 | 23.3 | 79 | 6.0 | 60 |
| 18 | 1008.5 | 17 | 23.2 | 96 | 4.9 | 120 |
| 19 | 1008.6 | 17 | 23.9 | 95 | 0.6 | 50 |
| 20 | 1012.5 | 17 | 23.9 | 89 | 3.4 | 40 |
| 21 | 1012.4 | 17 | 23.9 | 97 | 5.8 | 80 |
| 22 | 1010.8 | 17 | 25.8 | 97 | 3.7 | 170 |
| 23 | 1010.6 | 17 | 26.2 | 95 | 3.4 | 200 |
| 24 | 1011.1 | 17 | 25.7 | 93 | 2.7 | 340 |
| 25 | 1012.4 | 17 | 25.8 | 89 | 1.9 | 60 |
| 26 | 1010.9 | 17 | 27.2 | 86 | 4.2 | 200 |
| 27 | 1006.6 | 17 | 27.5 | 86 | 6.7 | 170 |
| 28 | 1006.5 | 17 | 23.4 | 95 | 3.4 | 260 |
| 29 | 1004.4 | 17 | 25.6 | 92 | 6.7 | 330 |
| 30 | 1008.6 | 17 | 24.6 | 95 | 0.3 | 140 |
| 31 | 1009.8 | 17 | 27.3 | 94 | 4.2 | 250 |