Houston weather in May
Houston in May averages 25°C (77°F) and 130 mm of rain.
Of the twelve months in Houston, May is the fifth warmest and the third wettest.
- Average temp
- 25°C (77°F)
20–30°C · 67–87°F
- Rainfall
- 130 mm
Showers likely
- Sunshine
- —
- Wind
- 14 km/h
What is Houston like in May?
Daytime
Days are warm, typically in the mid-20s°C or above.
Rain
Some rain is likely; pack for showers.
Evening
Evenings stay warm.
What should I pack for Houston in May?
High-factor sun cream
With daytime highs around 30°C, burn time is short even in shade.
Sunglasses and a brimmed hat
Midday glare is the part people underpack for, not the heat itself.
Loose cotton or linen
Synthetics stop working once you are sweating through them all day.
A refillable water bottle
Daily highs this warm need roughly double the water a temperate day does.
A light rain jacket
About 130 mm falls this month — showers rather than washouts.
A layer for the evening
The day swings about 11°C between its low and its high.
May compared with April and June
May in Houston is 4°C warmer than April and 29 mm wetter than it, which averages 21°C (70°F).
May in Houston is 3.2°C cooler than June and 21 mm drier than it, which averages 28°C (83°F).
Daylight in Houston in May
On 15 May the sun is up for 13 hours 40 minutes in Houston, rising about 06:28 and setting about 20:07 local time.
May ends 36 minutes longer than it begins, so the last week of the month is a different length of day from the first.
Where to stay in Houston
Dates are a starting point for May.
Travel guides for Houston
What to read before you book.
Houston weather by month
TemperatureRainfall
How May compares with the rest of the year
May is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 12°C / 53°F | 96 mm |
| February | 14°C / 57°F | 74 mm |
| March | 18°C / 64°F | 89 mm |
| April | 21°C / 70°F | 101 mm |
| May | 25°C / 77°F | 130 mm |
| June | 28°C / 83°F | 151 mm |
| July | 29°C / 85°F | 94 mm |
| August | 29°C / 85°F | 122 mm |
| September | 27°C / 80°F | 110 mm |
| October | 22°C / 72°F | 139 mm |
| November | 17°C / 62°F | 98 mm |
| December | 13°C / 55°F | 103 mm |
Similar weather in May
Other destinations whose May averages sit close to this one.
Check another month
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FAQs about Houston in May
May climate averages for Houston, 1991–2020.
Houston averages 25°C (77°F) in May, ranging from about 20°C (67°F) at night to 30°C (87°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Some. About 130 mm falls across May, enough to need a light jacket but not enough to reshape a trip.
No. May averages 25°C (77°F) against 28°C (83°F) in June — 3.2°C cooler.
May is 4°C warmer than April, and 29 mm wetter.
Yes. May falls inside the most comfortable stretch of the year here, March to June, on temperature and rainfall together.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what May is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 13 hours 40 minutes of daylight in mid-May, against 14 hours 3 minutes in June and 10 hours 15 minutes in December.
On 15 May, sunrise is about 06:28 and sunset about 20:07 local time. Both shift across the month — the month ends 36 minutes longer than it starts.
