Average humidity in Port Isabel (TX)
On this page you find more information about the monthly relative humidity over the year in Port Isabel (Texas), the United States of America.
Port Isabel's humidity levels vary throughout the year. The highest levels occur in January, reaching 78% (high), while the lowest is recorded in July at 73%.
Throughout the year, the average humidity in Port Isabel is 76%.
Humidity plays an important role in how temperatures are felt. During the warmest month, August, the maximum average temperature is around 33°C (91°F). Combined with high humidity during this period, the temperature can feel even warmer than the thermometer shows.
During the coldest month, January, the maximum average temperature is around 20°C (68°F). This period has high humidity. Check out our detailed temperature page for more information.
Port Isabel Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Port Isabel - and find the best time to visit.
Port Isabel 3-Day Forecast
Temperature Rainfall Sunshine Humidity
See the full Port Isabel climate overview or explore weather in the United States of America.
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