Houston weather in January
January in Houston: nice, rainy, with clean air — a great time to visit.
#7 of 12 months in Houston · #246 of 604 destinations to visit in January · comfort 74/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Houston climate normals — January
| Daytime high | 18°C / 65°F | 😎 nice |
|---|---|---|
| Nighttime low | 9°C / 48°F | |
| Feels like (high) | 17°C / 63°F | |
| Rainfall | 117 mm / 4.6 in | 🌧 rainy |
| Rainy days | 10 days | |
| Humidity | 72% | 💧 humid |
| Dew point | 8°C / 46°F | |
| Sunshine | 6.6 h/day | |
| Daylight | 10.5 h | |
| Wind | 20 km/h / 12 mph | |
| Snowfall | 0.1 cm / 0 in | |
| Air quality (US AQI) | 42 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Houston in January — FAQ
- Is January a good time to visit Houston?
- January in Houston: nice, rainy, with clean air — a great time to visit. It ranks #7 of 12 months for Houston on SeasonMap's comfort score (74/100).
- What is the weather like in Houston in January?
- In January, Houston averages a daily high of 18.1°C and a low of 9.1°C, with about 116.7 mm of rain over roughly 10.2 rainy days.
- What is the air quality in Houston in January?
- Houston has a mean US Air Quality Index of about 42 in January.