The most comfortable time to visit Houston is from late February to April, and again in mid and late November. For sun, aim for May; for walking, go from late November to early February.
When to go five ratings · thirty-six ten-day sections · click a cell to read it
For sun, go in May. It peaks in early October, at 63. Avoid January for this: it falls to 2, mostly because it is too cool. The clearest skies come in October, when the sky is typically 45% covered at midday (partly cloudy).
The being outside season here runs from late February to April, with a second spell in mid and late November. It peaks in late March, at 75. The weakest stretch is from mid June to August, when it drops to 1, mostly because it is too hot.
For walking, go from late November to early February, with a second spell in early and mid March. It peaks in late January, at 69. Avoid late May to mid September for this: it falls to 0, mostly because it is too warm.
The year, measured
The average temperature in Houston over the whole year is 21°C. August is the hottest month, with highs of about 33°C; January is the coldest, with lows of about 9°C. Houston has no sharply defined rainy season: the chance of rain on a given day runs from 36% in February, the driest month, to 43% in May, the wettest. Winds in Houston are highest in April, averaging 3.5 m/s (13 km/h), and lightest in July, at 2.2 m/s (8 km/h). The prevailing wind is from the SE. The clearest skies in Houston come in August, when the sky is typically 33% covered; February is the cloudiest month, at 62%.
Month by month Houston climate by month: average temperatures year round · click a month to read it
| Month | High | Low | Feels like | Chance of rain | Cloud | Wind | Being outside | Sun | Walking |
|---|---|---|---|---|---|---|---|---|---|
| January | 15°C | 9°C | 12°C | 41% | 52% | 3.0 m/s | 36 | 4 | 62 |
| February | 18°C | 12°C | 16°C | 36% | 62% | 3.3 m/s | 53 | 13 | 56 |
| March | 22°C | 15°C | 20°C | 37% | 58% | 3.4 m/s | 67 | 25 | 54 |
| April | 25°C | 18°C | 24°C | 37% | 56% | 3.5 m/s | 64 | 40 | 37 |
| May | 28°C | 22°C | 30°C | 43% | 54% | 3.2 m/s | 28 | 58 | 8 |
| June | 31°C | 25°C | 34°C | 41% | 40% | 2.6 m/s | 5 | 31 | 1 |
| July | 32°C | 25°C | 36°C | 41% | 35% | 2.2 m/s | 3 | 16 | 0 |
| August | 33°C | 25°C | 36°C | 41% | 33% | 2.2 m/s | 2 | 15 | 0 |
| September | 30°C | 23°C | 33°C | 40% | 36% | 2.2 m/s | 12 | 38 | 3 |
| October | 27°C | 18°C | 27°C | 39% | 37% | 2.5 m/s | 36 | 51 | 23 |
| November | 21°C | 14°C | 20°C | 41% | 50% | 2.5 m/s | 56 | 26 | 52 |
| December | 18°C | 11°C | 16°C | 39% | 56% | 2.8 m/s | 48 | 12 | 61 |
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Houston weather by season
Year round, Houston has days of about 15°C at their warmest in January, its coolest month, and 33°C in August, its warmest; the coolest hours of the day run from 9°C to 25°C through the year, and the average temperature over the year is 21°C around the clock. Rain is most likely around May and least likely around February. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Houston weather in winterDecember to February
Winter in Houston has typical daily highs of about 17°C and lows of about 11°C, with a 38% chance of rain on a given day.
Houston weather in springMarch to May
Spring in Houston has typical daily highs of about 25°C and lows of about 18°C, with a 39% chance of rain on a given day.
Houston weather in summerJune to August
Summer in Houston has typical daily highs of about 32°C and lows of about 25°C, with a 41% chance of rain on a given day.
Houston weather in autumnSeptember to November
Autumn in Houston has typical daily highs of about 26°C and lows of about 18°C, with a 40% chance of rain on a given day.
When is the rainy season in Houston?
Houston has no sharply defined rainy season: the chance of rain on a given day runs from 36% in February, the driest month, to 43% in May, the wettest.
What time of year is Houston windiest?
Winds in Houston are highest in April, averaging 3.5 m/s (13 km/h), and lightest in July, at 2.2 m/s (8 km/h). The prevailing wind is from the SE.
What is the average temperature in Houston year round?
The average temperature in Houston over the whole year is 21°C. August is the hottest month, with highs of about 33°C; January is the coldest, with lows of about 9°C.
Where to go instead in mid July, the weakest time here for being outside
How this is worked out
Every figure is a decade of weather-station observations blended into one typical year, in ten-day sections. The ratings, the chart and the feels-like column are read at midday local solar time. Being outside is the Easy outdoors rating, Sun is Sunbathing and Walking is Active outdoors, each out of 100: Good from 55, Ideal from 80. They describe what a time of year is usually like here, not a forecast. The dotted links open the map at that time of year; set its time of day to midday to see these numbers.