January Weather in Wailuku

Last updated: March 2, 2024

The weather in Wailuku, United States, during January is characterized by an average temperature of 23°C (74°F). Highs can soar to 28°C (82°F), while lows may dip to 20°C (67°F). Typically, the humidity level in Wailuku throughout January hovers around 78%.

20°C (67°F)

Minimum temperature

23°C (74°F)

Average temperature

28°C (82°F)

Maximum temperature

78%

Humidity

Precipitation and Sunshine hours

In January, Wailuku averages 32 mm (1.3 inches) of rainfall, typically over the course of 5 rainy days. The month enjoys an average of 11 hours 0 minutes of daylight, with the sun shining for approximately 7 hours 9 minutes each day. Additionally, there is a 55% probability of sunny days during this period.

32 mm (1.3 inches)

Precipitation

5 rainy days

Rainy days

7 hours 9 minutes

Sunshine hours

55%

Chance of sun

UV Index

In January, the UV Index in Wailuku reaches a maximum of 7, indicating a level of High exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 25 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 1 1 2 4 6 7 7 6 4 2 1 1 0
Exposure Low Moderate High Moderate Low
Time to burn 45 min 30 min 25 min 30 min 45 min

Compare Wailuku's Climate with Cities Worldwide