Port Isabel (TX) Sunshine Hours by Month

Sunshine plays a big role in understanding the climate of a city. This page shows the total number of hours of direct sunlight per month and the average hours per day in Port Isabel, Texas, United States of America. These averages rely on historical data collected over 30 years, from 1990 to 2020.

Monthly hours of sunshine

If you're visiting Port Isabel, timing is key. In July, you can enjoy up to 326 hours of sunshine, while the shorter days of January provide just 133 hours. The total annual amount of sun is 2715 hours.

Daily hours of sunshine

For those who appreciate different seasons, Port Isabel serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 10.9 hours of sunshine daily, and embrace the darker days in January, offering only 4.4 hours of daily sunlight.

Average percent of sunshine

On average the sun shines 78% of the time during the day in July, the highest percentage of any month. January has the lowest percentage at 38%.

Port Isabel enjoys an average of 2715 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

In Lisbon, Portugal, there are approximately 2801 hours of sunshine annually, highlighting its warm and sunny Mediterranean climate.

In contrast, London, UK, receives only about 1659 hours of sunshine per year, known for its frequently overcast and rainy skies.

Toronto, Canada, sees around 2071 hours of sunshine each year, with especially long, bright summer days.

In Tokyo, Japan, the average annual sunshine is 1930 hours, with sunny periods between rainy seasons.

September, Port Isabel’s wettest month, receives 25 mm (1 in) of rainfall and has a maximum daytime temperature of 32°C (90°F). During the driest month August you can expect a temperature of 33°C (91°F).

For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Port Isabel Precipitation page.