Houston Weather in May
United States · 30-year monthly averages
🤔 Fair time to visit
May in Houston is hot, with average daytime highs around 30°C (86°F) and nighttime lows near 21°C (69°F). Expect roughly 138mm of precipitation spread over about 6 rainy days, and this is one of the wetter months.
Avg high
30°C
86°F
Avg low
21°C
69°F
Rainfall
138mm
rainy
Rainy days
6
days with ≥1mm
🎒 What to pack
- breathable summer clothing
- sunscreen, hat and sunglasses
- refillable water bottle
- compact umbrella or rain jacket
May vs the rest of the year
FAQ
- How hot is Houston in May?
- May in Houston is hot, with average daytime highs around 30°C (86°F) and nighttime lows near 21°C (69°F). Expect roughly 138mm of precipitation spread over about 6 rainy days, and this is one of the wetter months.
- Does it rain a lot in Houston in May?
- Houston sees around 138mm of precipitation in May on average — rainy by global standards.
- Is May a good time to visit Houston?
- May is a workable month to visit Houston, but expect some weather trade-offs.