Climate almanac
Port Isabel
Texas, United States · 26.07°, -97.21°
What is the weather like in Port Isabel in May?
In May, Port Isabel is typically 81°F (27°C) during the day and 77°F (25°C) at night. The month brings about 2.1 in (54 mm) of precipitation in total.
- Average high81°F (27°C)
- Average low77°F (25°C)
- Precipitation2.1 in (54 mm)
- Clear or mostly clear days14
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)