Rockwall Weather in May

May in Rockwall averages 28°C (82°F) during the day and 17°C (63°F) at night. It is the wettest month of the year, with 151 mm (5.9 in) of rainfall on average, so waterproof gear is a must.

Rainfall in Rockwall in May

In this month, the heaviest downpours of the year are not uncommon. Carrying a poncho might be your best bet to stay dry. Typically, about 11 days will experience rainfall, with an average of 151 mm (5.9 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Rockwall in May

Rockwall in May gets highs of 28°C (82°F) during the day and drops to 17°C (63°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With lows of 17°C (63°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Rockwall in May

With approximately 260 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

If you prefer dry days with pleasant temperatures, April 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.