Houston (TX) Sunshine Hours by Month

The amount of sunshine is fundamental to comprehending a place's climate. This page shows the total number of hours of direct sunlight per month and the average hours per day in Houston, Texas, United States of America. These values are calculated using 30 years of data (1990–2020) to ensure accuracy.

Monthly hours of sunshine

Seasonal sunshine in Houston varies. It peaks at 295 hours in July and drops to 142 hours in January. The total annual amount of sun is 2584 hours.

Daily hours of sunshine

In Houston, summer days are longer and more sunny, with daily sunshine hours peaking at 9.8 hours in July. As the darker season arrives, the brightness of the sun becomes less. January sees a soft sun for only 4.7 hours per day.

Average percent of sunshine

On average the sun shines 68% of the time during the day in July, the highest percentage of any month. January has the lowest percentage at 44%.

Houston enjoys an average of 2584 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

In Barcelona, Spain, there are 2530 hours of sunshine annually and is a city that can be visited year-round.

In contrast, Tromsø , Norway, receives only about 1270 hours of sunshine per year, known for the polar night with no sunlight for weeks during winter.

Osaka, Japan, experiences 2010 hours of sunshine annually, with bright, sunny weather in spring and autumn.

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

July, Houston’s wettest month, receives 148 mm (5.8 in) of rainfall and has a maximum daytime temperature of 34°C (93°F). During the driest month February you can expect a temperature of 19°C (66°F).

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