January Weather in Tucson

Last updated: March 2, 2024

The weather in Tucson, United States, during January is characterized by an average temperature of 11°C (53°F). Highs can soar to 24°C (75°F), while lows may dip to 0°C (31°F). Typically, the humidity level in Tucson throughout January hovers around 76%.

0°C (31°F)

Minimum temperature

11°C (53°F)

Average temperature

24°C (75°F)

Maximum temperature

76%

Humidity

Precipitation and Sunshine hours

In January, Tucson averages 23 mm (0.9 inches) of rainfall, typically over the course of 3 rainy days. The month enjoys an average of 10 hours 17 minutes of daylight, with the sun shining for approximately 6 hours 33 minutes each day. Additionally, there is a 67% probability of sunny days during this period.

23 mm (0.9 inches)

Precipitation

3 rainy days

Rainy days

6 hours 33 minutes

Sunshine hours

67%

Chance of sun

UV Index

In January, the UV Index in Tucson reaches a maximum of 5, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 30 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 0 1 1 3 4 5 5 4 3 1 1 0 0
Exposure Low Moderate Low
Time to burn 45 min 30 min 45 min

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