Cali weather in January
January in Cali: warm, soaked, with clean air — fine if you can take 24 rainy days.
#5 of 12 months in Cali · #366 of 897 destinations to visit in January · comfort 76/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Cali in January
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Cali climate normals — January
| Daytime high | 25°C / 76°F | 🌤 warm |
|---|---|---|
| Nighttime low | 18°C / 64°F | |
| Rainfall | 252 mm / 9.9 in | ⛈ soaked |
| Rainy days | 24 days | |
| Humidity | 84% | 💦 very humid |
| Dew point | 18°C / 64°F | |
| Sunshine | 9.3 h/day | |
| Daylight | 11.9 h | |
| Wind | 7 km/h / 4 mph | |
| Air quality (US AQI) | 31 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Cali in January — FAQ
- Is January a good time to visit Cali?
- January in Cali: warm, soaked, with clean air — fine if you can take 24 rainy days. It ranks #5 of 12 months for Cali on SeasonMap's comfort score (76/100).
- What is the weather like in Cali in January?
- In January, Cali averages a daily high of 24.7°C and a low of 17.6°C, with about 252.2 mm of rain over roughly 23.6 rainy days.
- What is the air quality in Cali in January?
- Cali has a mean US Air Quality Index of about 31 in January.