January Weather in San Juan

Last updated: March 2, 2024

The weather in San Juan, Philippines, during January is characterized by an average temperature of 26°C (80°F). Highs can soar to 30°C (86°F), while lows may dip to 24°C (75°F). Typically, the humidity level in San Juan throughout January hovers around 86%.

24°C (75°F)

Minimum temperature

26°C (80°F)

Average temperature

30°C (86°F)

Maximum temperature

86%

Humidity

Precipitation and Sunshine hours

In January, San Juan averages 308 mm (12.1 inches) of rainfall, typically over the course of 24 rainy days. The month enjoys an average of 11 hours 34 minutes of daylight, with the sun shining for approximately 7 hours 11 minutes each day. Additionally, there is a 14% probability of sunny days during this period.

308 mm (12.1 inches)

Precipitation

24 rainy days

Rainy days

7 hours 11 minutes

Sunshine hours

14%

Chance of sun

UV Index

In January, the UV Index in San Juan reaches a maximum of 12, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, 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 9 12 12 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 Juan's Climate with Cities Worldwide