September Weather in San Jose

Last updated: March 2, 2024

The weather in San Jose, Argentina, during September is characterized by an average temperature of 20°C (68°F). Highs can soar to 35°C (96°F), while lows may dip to 9°C (48°F). Typically, the humidity level in San Jose throughout September hovers around 54%.

9°C (48°F)

Minimum temperature

20°C (68°F)

Average temperature

35°C (96°F)

Maximum temperature

54%

Humidity

Precipitation and Sunshine hours

In September, San Jose averages 103 mm (4.1 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 11 hours 56 minutes of daylight, with the sun shining for approximately 8 hours 48 minutes each day. Additionally, there is a 50% probability of sunny days during this period.

103 mm (4.1 inches)

Precipitation

10 rainy days

Rainy days

8 hours 48 minutes

Sunshine hours

50%

Chance of sun

UV Index

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

Compare San Jose's Climate with Cities Worldwide