Average Monthly Sunshine in Harlingen

The graphs on this page shows the average number of hours per month and per day that Harlingen receives direct sunlight. The numbers are calculated over a 30-year period to provide a reliable average.

Monthly hours of sunshine

Sunshine in Harlingen varies greatly throughout the year. The sunniest month, May, reaches an impressive 233 hours, while December, the darkest month, offers only 62 hours. The total annual amount of sun is 1795 hours.

Daily hours of sunshine

In Harlingen, summer days are longer and more sunny, with daily sunshine hours peaking at 7.8 hours in May. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 2.1 hours per day.

Harlingen’s total hours of sunshine compared to other major cities

Harlingen enjoys an average of 1795 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

Athens, Greece, enjoys 2769 hours of sunshine each year, making it one of the sunniest destinations in the Mediterranean region.

In contrast, Juneau, Alaska, receives only about 1523 hours of sunshine per year and is known for its very short days in winter and frequently overcast conditions.

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

In Brisbane, Australia, the annual sunshine averages 2999 hours, making it one of Australia’s sunniest cities.

Other climate information

August, Harlingen’s wettest month, receives 112 mm of rainfall and has a maximum daytime temperature of 21°C. During the driest month April you can expect a temperature of 11°C.

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