Monthly climate guide
Houston weather in December
Expect mild weather in Houston in December: afternoons reach about 18°C (65°F), while nights drop to around 7°C (45°F). Around 101 mm of rain falls over the month (wet), and skies are often cloudy. Daytime highs are 4°C cooler than November and 2°C warmer than January.
What stands out in December
- December brings early winter to Houston.
- December is among Houston's three coolest months.
- It's one of the greyest months, with cloud cover near 63%.
- Houston is usually about 3°C cooler than Corpus Christi, 290 km away, in December.
Avg high
18°C
65°F
Avg low
7°C
45°F
Rainfall
101 mm
wet
Humidity
81%
relative
Sky
63%
cloud · often cloudy
Houston weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 17°C / 62°F | 5°C / 41°F | 93 mm | 80% | 58% |
| February | 19°C / 67°F | 8°C / 46°F | 64 mm | 81% | 66% |
| March | 23°C / 74°F | 12°C / 53°F | 85 mm | 79% | 62% |
| April | 27°C / 80°F | 15°C / 59°F | 93 mm | 76% | 56% |
| May | 31°C / 87°F | 19°C / 67°F | 147 mm | 74% | 52% |
| June | 34°C / 93°F | 23°C / 74°F | 116 mm | 73% | 45% |
| July | 35°C / 94°F | 24°C / 75°F | 87 mm | 72% | 44% |
| August | 36°C / 97°F | 24°C / 76°F | 136 mm | 69% | 43% |
| September | 33°C / 91°F | 22°C / 71°F | 118 mm | 74% | 45% |
| October | 29°C / 83°F | 16°C / 61°F | 103 mm | 74% | 34% |
| November | 22°C / 72°F | 11°C / 51°F | 73 mm | 77% | 50% |
| December | 18°C / 65°F | 7°C / 45°F | 101 mm | 81% | 63% |
What to pack for December
- A warm sweater or fleece for layering
- A mid-weight jacket
- An extra layer — evenings are noticeably cooler than afternoons
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is December a good time to visit Houston?
Compare the months in the chart above to find your ideal window.
Best time to visit Houston →Other United States cities in December
Cite or embed this data
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Houston weather in December. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/usa/houston/december
<a href="https://weathercompare.eu/weather/usa/houston/december">Houston weather in December</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/usa/houston" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Houston weather in December"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/usa/houston/december">Houston weather in December</a> – WeatherCompare</p>
Houston in December: quick answers
Is December a good time to visit Houston?
December is one of the wetter months in Houston, with about 101 mm of rain. You can still go: pack a rain jacket and keep plans flexible.
How warm is Houston in December?
Average highs are about 18°C (65°F) and average lows about 7°C (45°F), based on 10 years of daily data.
Does it rain a lot in Houston in December?
Houston typically gets around 101 mm of rain in December — wet.
Figures are long-term averages for the area around Houston (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.