San Juan, Sunday, 9 August, 14:58
Partly cloudy. Feels like 101°. High 89°, low 79°.
In October, San Juan, PR averages a high of 86.8° and a low of 74.9°. About 6.1 inches of precipitation fall over the month (25 wet days). The record high is 95.5° (2024) and the record low 69.1° (2021). Normals are computed over the last 60 years.
| Day | High | Low | Chance of precip. | Record high | Record low |
|---|---|---|---|---|---|
| 1 | 88° | 75.2° | 85% | 94.8° (2025) | 71.2° (2021) |
| 2 | 87.8° | 75.4° | 88% | 91.9° (2025) | 71.2° (2018) |
| 3 | 87.8° | 75.6° | 80% | 92.5° (2021) | 72.1° (2018) |
| 4 | 87.4° | 75.2° | 82% | 93.6° (1994) | 72.9° (2017) |
| 5 | 87.4° | 75.2° | 82% | 95° (2015) | 73.4° (2018) |
| 6 | 87.3° | 75.4° | 85% | 93.6° (2015) | 72.7° (2020) |
| 7 | 87.1° | 75.2° | 85% | 92.3° (2023) | 71.6° (2018) |
| 8 | 87.6° | 75.4° | 83% | 92.7° (2021) | 71.8° (2017) |
| 9 | 87.3° | 75° | 85% | 93.4° (2021) | 72.1° (2017) |
| 10 | 87.3° | 74.8° | 82% | 95.2° (2024) | 72° (2017) |
| 11 | 87.3° | 75° | 87% | 94.1° (2024) | 72.5° (2019) |
| 12 | 87.4° | 75° | 78% | 93.9° (2024) | 71.8° (2019) |
| 13 | 87.1° | 74.8° | 80% | 93.4° (2023) | 71.2° (2019) |
| 14 | 87.4° | 74.8° | 83% | 94.6° (2024) | 71.1° (2022) |
| 15 | 87.1° | 75° | 82% | 94.5° (2024) | 72.7° (1985) |
| 16 | 87.1° | 75° | 75% | 94.6° (2024) | 72.1° (2022) |
| 17 | 87.1° | 74.8° | 83% | 92.3° (2023) | 72.5° (2019) |
| 18 | 86.5° | 74.8° | 80% | 93° (2023) | 71.8° (2022) |
| 19 | 86.7° | 74.8° | 83% | 93° (2025) | 71.6° (2020) |
| 20 | 86.5° | 74.8° | 82% | 93.2° (2024) | 71.1° (2020) |
| 21 | 86.4° | 74.7° | 82% | 91.9° (2024) | 69.4° (2020) |
| 22 | 86.2° | 74.7° | 77% | 93° (2024) | 71.8° (2017) |
| 23 | 86.4° | 74.5° | 78% | 93.4° (2024) | 71.4° (1984) |
| 24 | 86.4° | 74.5° | 80% | 95.5° (2024) | 70.3° (2017) |
| 25 | 86.2° | 74.7° | 82% | 91.8° (2024) | 70.9° (2017) |
| 26 | 86° | 74.7° | 85% | 91.8° (2024) | 70.9° (2021) |
| 27 | 86° | 74.7° | 73% | 90.3° (1968) | 69.8° (2021) |
| 28 | 86.2° | 74.8° | 75% | 91.2° (2021) | 70.7° (2021) |
| 29 | 86° | 74.7° | 72% | 92.8° (2025) | 69.1° (2021) |
| 30 | 85.8° | 74.5° | 78% | 94.1° (2025) | 70.2° (2018) |
| 31 | 85.5° | 74.3° | 85% | 90.7° (2025) | 70.3° (2018) |