Climate almanac
San Juan
Central Luzon, Philippines · 15.29°, 120.06°
What is the weather like in San Juan in September?
In September, San Juan is typically 84°F (29°C) during the day and 78°F (25°C) at night. The month brings about 18 in (462 mm) of precipitation in total.
- Average high84°F (29°C)
- Average low78°F (25°C)
- Precipitation18 in (462 mm)
- Clear or mostly clear days1
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)