Climate almanac
San Juan
Loreto, Peru · -3.78°, -73.28°
What is the weather like in San Juan in May?
In May, San Juan is typically 85°F (29°C) during the day and 74°F (24°C) at night. The month brings about 10 in (262 mm) of precipitation in total.
- Average high85°F (29°C)
- Average low74°F (24°C)
- Precipitation10 in (262 mm)
- Clear or mostly clear days1
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)