Katy Weather in May

In Katy, May brings high daytime temperatures around 30°C (86°F), with nights cooling to 19°C (66°F). It is the wettest month of the year, so expect more rainfall than usual.

Rainfall in Katy in May

Expect frequent showers this month, so make sure to have an umbrella to keep yourself dry. Expect around 8 days of rain based on historical data, with 135 mm (5.3 in) average. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Katy in May

In May, expect high temperatures in Katy, with highs of 30°C (86°F) and lows of 19°C (66°F) at night. This kind of day-to-night contrast is typical for this time of year. Nights drop to around 19°C (66°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Katy in May

The month enjoys around 250 hours of sunshine, creating mostly sunny days with good weather conditions.

If you prefer dry days with pleasant temperatures, March and November typically offer 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.