| Point Forecast: San Juan PR 18.41N 66.08W (Elev. 16 ft) |
Last Update: 4:05 am AST Jul 11, 2026 |
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| Date | 07/11 | 07/12 | ||||||||||||||||||||||
| Hour (AST) | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 |
| Temperature (°F) | 80 | 82 | 83 | 84 | 86 | 87 | 87 | 88 | 88 | 88 | 88 | 87 | 86 | 84 | 83 | 82 | 82 | 81 | 81 | 80 | 80 | 79 | 79 | 79 |
| Dewpoint (°F) | 73 | 73 | 73 | 74 | 74 | 74 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 74 | 74 | 74 | 74 | 74 | 73 | 73 | 73 | 73 |
| Heat Index (°F) | 84 | 87 | 89 | 92 | 94 | 95 | 97 | 97 | 98 | 98 | 98 | 97 | 95 | 92 | 90 | 88 | 87 | 86 | 85 | 85 | 84 | 83 | 83 | 79 |
| Surface Wind (mph) | 13 | 13 | 13 | 14 | 15 | 17 | 18 | 23 | 22 | 23 | 23 | 23 | 16 | 15 | 14 | 13 | 11 | 11 | 11 | 13 | 14 | 14 | 14 | 13 |
| Wind Dir | E | E | E | E | E | E | E | E | ENE | ENE | ENE | E | E | E | E | E | E | E | E | E | E | E | E | E |
| Gust | 20 | 22 | 23 | 29 | 28 | 29 | 29 | 29 | 21 | 20 | ||||||||||||||
| Sky Cover (%) | 5 | 20 | 20 | 20 | 20 | 20 | 20 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 20 | 20 | 20 | 20 | 20 |
| Precipitation Potential (%) | 0 | 7 | 7 | 7 | 7 | 7 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 3 | 7 | 7 | 7 | 9 | 9 |
| Relative Humidity (%) | 79 | 76 | 73 | 70 | 68 | 67 | 66 | 66 | 66 | 66 | 67 | 68 | 70 | 74 | 76 | 77 | 78 | 79 | 80 | 80 | 81 | 82 | 82 | 82 |
| Rain | -- | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/13 | |||||||||||||||||||||||
| Hour (AST) | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 |
| Temperature (°F) | 80 | 82 | 83 | 84 | 86 | 87 | 87 | 88 | 88 | 88 | 88 | 87 | 86 | 84 | 83 | 82 | 82 | 81 | 81 | 80 | 80 | 79 | 79 | 79 |
| Dewpoint (°F) | 73 | 73 | 74 | 74 | 74 | 75 | 75 | 75 | 76 | 76 | 76 | 76 | 76 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 |
| Heat Index (°F) | 84 | 87 | 90 | 92 | 94 | 95 | 97 | 98 | 99 | 99 | 98 | 97 | 95 | 92 | 90 | 89 | 88 | 87 | 86 | 85 | 84 | 83 | 83 | 79 |
| Surface Wind (mph) | 13 | 13 | 13 | 14 | 15 | 16 | 16 | 16 | 17 | 16 | 17 | 16 | 16 | 15 | 13 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 9 | 9 |
| Wind Dir | E | E | E | E | E | E | E | E | ENE | ENE | ENE | ENE | ENE | ENE | E | E | E | E | E | E | E | E | E | E |
| Gust | 21 | 21 | 21 | 21 | 21 | |||||||||||||||||||
| Sky Cover (%) | 20 | 5 | 5 | 5 | 5 | 5 | 5 | 30 | 30 | 30 | 0 | 0 | 0 | 20 | 20 | 20 | 20 | 20 | 20 | 30 | 30 | 30 | 30 | 30 |
| Precipitation Potential (%) | 9 | 0 | 0 | 0 | 2 | 2 | 2 | 20 | 20 | 20 | 20 | 20 | 20 | 6 | 6 | 6 | 10 | 10 | 10 | 20 | 20 | 20 | 20 | 20 |
| Relative Humidity (%) | 79 | 76 | 73 | 71 | 69 | 68 | 67 | 67 | 67 | 68 | 68 | 69 | 72 | 75 | 78 | 79 | 80 | 82 | 83 | 84 | 85 | 86 | 86 | 87 |
| Rain | SChc | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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