| Point Forecast: San Juan PR 18.41N 66.08W (Elev. 16 ft) |
Last Update: 7:54 pm AST Jun 12, 2026 |
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| Date | 06/12 | 06/13 | ||||||||||||||||||||||
| Hour (AST) | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 |
| Temperature (°F) | 79 | 78 | 78 | 77 | 77 | 77 | 79 | 81 | 84 | 85 | 87 | 88 | 89 | 90 | 91 | 91 | 90 | 90 | 88 | 85 | 84 | 83 | 82 | 81 |
| Dewpoint (°F) | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 75 | 74 | 74 | 74 | 74 | 73 | 74 | 74 | 74 |
| Heat Index (°F) | 83 | 78 | 78 | 77 | 77 | 77 | 83 | 87 | 91 | 93 | 96 | 97 | 99 | 100 | 101 | 102 | 100 | 99 | 96 | 93 | 90 | 89 | 87 | 86 |
| Surface Wind (mph) | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 11 | 13 | 14 | 15 | 16 | 17 | 18 | 20 | 20 | 18 | 17 | 15 | 14 | 11 | 10 | 10 | 9 |
| Wind Dir | ESE | ESE | ESE | ESE | ESE | ESE | ESE | ESE | ESE | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E |
| Gust | 20 | 21 | 23 | 24 | 23 | 22 | 20 | |||||||||||||||||
| Sky Cover (%) | 30 | 19 | 19 | 19 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 28 | 28 | 28 | 40 | 40 | 40 | 10 | 10 | 10 | 0 | 0 |
| Precipitation Potential (%) | 10 | 4 | 4 | 4 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 8 | 8 | 8 | 20 | 20 | 20 | 2 | 2 | 2 | 0 | 0 |
| Relative Humidity (%) | 84 | 86 | 87 | 89 | 90 | 90 | 84 | 78 | 73 | 69 | 65 | 63 | 61 | 59 | 58 | 60 | 59 | 60 | 64 | 69 | 71 | 75 | 78 | 80 |
| Rain | SChc | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 06/14 | |||||||||||||||||||||||
| Hour (AST) | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 |
| Temperature (°F) | 80 | 79 | 79 | 78 | 78 | 78 | 80 | 82 | 84 | 85 | 87 | 88 | 89 | 89 | 90 | 90 | 89 | 89 | 87 | 84 | 83 | 82 | 81 | 80 |
| Dewpoint (°F) | 74 | 74 | 74 | 74 | 74 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 74 | 74 | 74 | 74 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 |
| Heat Index (°F) | 85 | 83 | 83 | 78 | 78 | 78 | 84 | 87 | 90 | 92 | 94 | 95 | 98 | 99 | 99 | 99 | 98 | 96 | 94 | 91 | 88 | 87 | 85 | 84 |
| Surface Wind (mph) | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 9 | 10 | 13 | 14 | 16 | 17 | 17 | 18 | 18 | 17 | 17 | 16 | 15 | 14 | 13 | 13 | 13 |
| Wind Dir | E | ESE | ESE | ESE | ESE | ESE | ESE | ESE | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E |
| Gust | 22 | 22 | 23 | 23 | 22 | 22 | 21 | 20 | ||||||||||||||||
| Sky Cover (%) | 0 | 30 | 30 | 30 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 30 | 30 | 30 | 30 | 30 | 30 | 26 | 26 | 26 | 26 | 26 |
| Precipitation Potential (%) | 0 | 10 | 10 | 10 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 10 | 10 | 10 | 10 | 10 | 10 | 6 | 6 | 6 | 6 | 6 |
| Relative Humidity (%) | 82 | 84 | 85 | 86 | 88 | 84 | 80 | 75 | 70 | 67 | 64 | 62 | 62 | 61 | 60 | 60 | 58 | 60 | 64 | 69 | 73 | 75 | 78 | 80 |
| Rain | -- | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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