January Weather in San Francisco

Last updated: March 2, 2024

The weather in San Francisco, Philippines, during January is characterized by an average temperature of 26°C (79°F). Highs can soar to 28°C (82°F), while lows may dip to 25°C (77°F). Typically, the humidity level in San Francisco throughout January hovers around 90%.

25°C (77°F)

Minimum temperature

26°C (79°F)

Average temperature

28°C (82°F)

Maximum temperature

90%

Humidity

Precipitation and Sunshine hours

In January, San Francisco averages 297 mm (11.7 inches) of rainfall, typically over the course of 23 rainy days. The month enjoys an average of 11 hours 35 minutes of daylight, with the sun shining for approximately 7 hours 23 minutes each day. Additionally, there is a 15% probability of sunny days during this period.

297 mm (11.7 inches)

Precipitation

23 rainy days

Rainy days

7 hours 23 minutes

Sunshine hours

15%

Chance of sun

UV Index

In January, the UV Index in San Francisco reaches a maximum of 13, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 10 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 3 6 10 12 13 11 8 4 2 1 0 0
Exposure Low Moderate High VeryHigh Extreme VeryHigh Moderate Low
Time to burn 45 min 30 min 25 min 15 min 10 min 15 min 30 min 45 min

Compare San Francisco's Climate with Cities Worldwide