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April Weather in San Jose, Argentina

Last updated: August 22, 2025

In April, the average temperature in San Jose, Argentina is a pleasant 21°C (71°F). Expect a minimum of 7°C (45°F) and a maximum of 34°C (93°F), offering a wide range of weather experiences. Rainfall is likely, with 123 mm (4.8 in) expected over 7 days, and an average humidity of 82% that adds to the tropical feel of the atmosphere.

April Temperature in San Jose

In April in San Jose, the average temperature is 21°C (71°F), with maximums reaching 34°C (93°F) and minimums dropping as low as 7°C (45°F). This diverse temperature range makes San Jose an exciting destination for travelers seeking a mix of warm days and cooler evenings.

April Weather in San Jose: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in San Jose, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Jose, April typically has an average temperature of 21°C (71°F), with highs reaching up to 34°C (93°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec807875716462606368727578
Data source: Temperature data for San Jose generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in San Jose

In San Jose in April, the precipitation amount is 123 mm (4.8 in) over a span of 7 days.

April Precipitation Trends in San Jose

The chart displays monthly precipitation patterns in San Jose, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In San Jose, April typically receives around 123 mm (4.8 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec16810613512319799968110315214394
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in San Jose

In San Jose in April humidity is 82%. With an average temperature of 21°C (71°F), this humidity feels like a warm, muggy embrace that can make traveling feel sticky and exhausting, urging you to seek shade and hydration as you explore the vibrant surroundings.

April Average Humidity in San Jose

This chart illustrates the average monthly humidity levels in San Jose, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in San Jose is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%71%74%82%82%73%67%49%54%58%69%84%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in San Jose

In San Jose in April, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in San Jose.

Maximum UV Index Levels in San Jose for April

The chart shows the monthly maximum UV Index (UVI) for San Jose in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In April, the maximum UV index in San Jose typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15141210656710131414
Data source: San Jose April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How April Weather in San Jose Compares to Other Months

Weather in San Jose varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in San Jose, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in San Jose, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (80°F)168 mm (6.6 inches)77%extreme
February Weather26°C (78°F)106 mm (4.2 inches)71%extreme
March Weather24°C (76°F)135 mm (5.3 inches)74%extreme
April Weather21°C (71°F)123 mm (4.8 inches)82%very high
May Weather18°C (64°F)197 mm (7.8 inches)82%high
June Weather16°C (62°F)99 mm (3.9 inches)73%moderate
July Weather16°C (60°F)96 mm (3.8 inches)67%high
August Weather17°C (63°F)80 mm (3.2 inches)49%high
September Weather20°C (68°F)103 mm (4.1 inches)54%very high
October Weather22°C (72°F)152 mm (6.0 inches)58%extreme
November Weather24°C (75°F)143 mm (5.6 inches)69%extreme
December Weather26°C (79°F)93 mm (3.7 inches)84%extreme

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