Storm Activity: Jul 27, 1939 - Jul 31, 1939
Jul 31 · 22:00 GMT -- -- Unknown
| Jul 31 | 22:00 GMT | 24.4 | 130.8 | -- | -- | Unknown | -- |
| Jul 31 | 21:00 GMT | 24.32 | 130.94 | -- | -- | Unknown | -- |
| Jul 31 | 18:00 GMT | 24.07 | 131.34 | -- | -- | Unknown | -- |
| Jul 31 | 15:00 GMT | 23.84 | 131.74 | -- | -- | Unknown | -- |
| Jul 31 | 12:00 GMT | 23.62 | 132.14 | -- | -- | Unknown | -- |
| Jul 31 | 10:00 GMT | 23.5 | 132.4 | -- | -- | Unknown | -- |
| Jul 31 | 09:00 GMT | 23.44 | 132.53 | -- | -- | Unknown | -- |
| Jul 31 | 06:00 GMT | 23.3 | 132.92 | -- | -- | Unknown | -- |
| Jul 31 | 03:00 GMT | 23.17 | 133.32 | -- | -- | Unknown | -- |
| Jul 31 | 00:00 GMT | 23.07 | 133.72 | -- | -- | Unknown | -- |
| Jul 30 | 22:00 GMT | 23 | 134 | -- | -- | Unknown | -- |
| Jul 30 | 21:00 GMT | 22.96 | 134.14 | -- | -- | Unknown | -- |
| Jul 30 | 18:00 GMT | 22.84 | 134.57 | -- | -- | Unknown | -- |
| Jul 30 | 15:00 GMT | 22.73 | 135.01 | -- | -- | Unknown | -- |
| Jul 30 | 12:00 GMT | 22.64 | 135.48 | -- | -- | Unknown | -- |
| Jul 30 | 10:00 GMT | 22.6 | 135.8 | -- | -- | Unknown | -- |
| Jul 30 | 09:00 GMT | 22.59 | 135.96 | -- | -- | Unknown | -- |
| Jul 30 | 06:00 GMT | 22.57 | 136.46 | -- | -- | Unknown | -- |
| Jul 30 | 03:00 GMT | 22.57 | 136.98 | -- | -- | Unknown | -- |
| Jul 30 | 00:00 GMT | 22.59 | 137.53 | -- | -- | Unknown | -- |
| Jul 29 | 22:00 GMT | 22.6 | 137.9 | -- | -- | Unknown | -- |
| Jul 29 | 21:00 GMT | 22.6 | 138.09 | -- | -- | Unknown | -- |
| Jul 29 | 18:00 GMT | 22.6 | 138.67 | -- | -- | Unknown | -- |
| Jul 29 | 15:00 GMT | 22.6 | 139.26 | -- | -- | Unknown | -- |
| Jul 29 | 12:00 GMT | 22.6 | 139.88 | -- | -- | Unknown | -- |
| Jul 29 | 10:00 GMT | 22.6 | 140.3 | -- | -- | Unknown | -- |
| Jul 29 | 09:00 GMT | 22.6 | 140.52 | -- | -- | Unknown | -- |
| Jul 29 | 06:00 GMT | 22.61 | 141.21 | -- | -- | Unknown | -- |
| Jul 29 | 03:00 GMT | 22.61 | 141.88 | -- | -- | Unknown | -- |
| Jul 29 | 00:00 GMT | 22.61 | 142.52 | -- | -- | Unknown | -- |
| Jul 28 | 22:00 GMT | 22.6 | 142.9 | -- | -- | Unknown | -- |
| Jul 28 | 21:00 GMT | 22.59 | 143.07 | -- | -- | Unknown | -- |
| Jul 28 | 18:00 GMT | 22.57 | 143.52 | -- | -- | Unknown | -- |
| Jul 28 | 15:00 GMT | 22.55 | 143.91 | -- | -- | Unknown | -- |
| Jul 28 | 12:00 GMT | 22.52 | 144.27 | -- | -- | Unknown | -- |
| Jul 28 | 10:00 GMT | 22.5 | 144.5 | -- | -- | Unknown | -- |
| Jul 28 | 09:00 GMT | 22.49 | 144.63 | -- | -- | Unknown | -- |
| Jul 28 | 06:00 GMT | 22.48 | 145 | -- | -- | Unknown | -- |
| Jul 28 | 03:00 GMT | 22.46 | 145.37 | -- | -- | Unknown | -- |
| Jul 28 | 00:00 GMT | 22.43 | 145.75 | -- | -- | Unknown | -- |
| Jul 27 | 22:00 GMT | 22.4 | 146 | -- | -- | Unknown | -- |
| Jul 27 | 21:00 GMT | 22.38 | 146.13 | -- | -- | Unknown | -- |
| Jul 27 | 18:00 GMT | 22.32 | 146.52 | -- | -- | Unknown | -- |
| Jul 27 | 15:00 GMT | 22.24 | 146.92 | -- | -- | Unknown | -- |
| Jul 27 | 12:00 GMT | 22.16 | 147.33 | -- | -- | Unknown | -- |
| Jul 27 | 10:00 GMT | 22.1 | 147.6 | -- | -- | Unknown | -- |
Learn more about Unnamed Unknown and the 1939 Western Pacific hurricane season in our hurricane archive.
View All Hurricanes and Tropical Cyclones