Harlingen Weather in May

During May, Harlingen experiences moderate daytime temperatures of 15°C (59°F) and cooler nights around 11°C (52°F). Expect quite a bit of rainfall. Around 62 mm (2.4 in) is typical.

Rainfall in Harlingen in May

Expect around 14 days of rain based on historical data, with 62 mm (2.4 in) average. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Harlingen in May

May in Harlingen sees highs of 15°C (59°F) and lows of 11°C (52°F) overnight. Conditions are often most pleasant around the middle of the day. Nights cool down to 11°C (52°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Harlingen in May

With approximately 233 hours of sunshine, the days are filled with clear skies. Despite it being a cool month, it makes for pleasant days outside.

Wind Speed in Harlingen in May

May has wind speeds averaging 5 m/s (10 knots). You can expect gentle to moderate winds that move small trees and make flags wave steadily on typical days. Conditions typically range from light breezes to moderate winds.

If you prefer dry days with pleasant temperatures, July typically offers the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.