Climate averages 1991–2020
Weather in Puerto Rico in July
In July, average daytime highs across the 7 cities listed in Puerto Rico range from 30.2°C in Caguas to 31.7°C in Arecibo. Monthly rainfall ranges from 51 mm in Mayagüez to 110 mm in Caguas.
Long-term climate patterns, not a forecast for a particular trip.
City by city
July in Puerto Rico
| City | Average highHigh / low | Average low | Rainfall mm | Rain days |
|---|---|---|---|---|
| San Juan | 31.5°C24.6°C | 24.6°C | 80 | 16.4 |
| Bayamón | 31.5°C24.6°C | 24.6°C | 66 | 15.3 |
| Carolina | 31.0°C24.7°C | 24.7°C | 80 | 16.4 |
| Ponce | 30.6°C24.6°C | 24.6°C | 55 | 11.7 |
| Arecibo | 31.7°C24.6°C | 24.6°C | 79 | 14.8 |
| Caguas | 30.2°C24.6°C | 24.6°C | 110 | 21.7 |
| Mayagüez | 31.5°C25.7°C | 25.7°C | 51 | 14.4 |
A rain day is a local calendar day with at least 1 mm of precipitation.