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May Weather in San Justo, Argentina

Last updated: August 22, 2025

In May, the average temperature in San Justo, Argentina hovers around 16°C (60°F), with lows dipping to 2°C (35°F) and highs reaching up to 31°C (88°F). Expect around 117 mm (4.6 in) of precipitation over about 8 days, contributing to an average humidity level of 83%.

May Temperature in San Justo

In May in San Justo, the average temperature is 16°C (60°F). The maximum can reach 31°C (88°F), while the minimum can drop as low as 2°C (35°F). This wide range of temperatures makes it essential for travelers to pack a variety of clothing to ensure comfort during their visit.

May Weather in San Justo: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in San Justo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Justo, May typically has an average temperature of 16°C (60°F), with highs reaching up to 31°C (88°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec797672686055545762677376
Data source: Temperature data for San Justo 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.

May Precipitation in San Justo

In San Justo in May, the total precipitation amount is 117 mm (4.6 in) over a span of 8 days.

May Precipitation Trends in San Justo

The chart displays monthly precipitation patterns in San Justo, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In San Justo, May typically receives around 117 mm (4.6 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec13012310597117604462591118682
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in San Justo

In San Justo in May humidity is 83%. With an average temperature of 16°C (60°F), this humidity feels like a warm, heavy blanket wrapping around you, making outdoor activities a bit uncomfortable for traveling.

May Average Humidity in San Justo

This chart illustrates the average monthly humidity levels in San Justo, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in San Justo is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec51%57%65%76%83%78%58%54%59%50%53%57%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in San Justo

In San Justo in May, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in San Justo, you can refer to this Hourly UV Index in San Justo.

Maximum UV Index Levels in San Justo for May

The chart shows the monthly maximum UV Index (UVI) for San Justo in May, 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 May, the maximum UV index in San Justo typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141312964569111414
Data source: San Justo May 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 May Weather in San Justo Compares to Other Months

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

This table compares monthly weather conditions in San Justo, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)130 mm (5.1 inches)51%extreme
February Weather24°C (76°F)123 mm (4.8 inches)57%extreme
March Weather22°C (72°F)105 mm (4.1 inches)65%extreme
April Weather20°C (68°F)97 mm (3.8 inches)76%very high
May Weather16°C (60°F)117 mm (4.6 inches)83%high
June Weather13°C (55°F)60 mm (2.4 inches)78%moderate
July Weather12°C (54°F)44 mm (1.7 inches)58%moderate
August Weather14°C (57°F)62 mm (2.5 inches)54%high
September Weather17°C (63°F)59 mm (2.3 inches)59%very high
October Weather20°C (67°F)111 mm (4.4 inches)50%extreme
November Weather23°C (73°F)86 mm (3.4 inches)53%extreme
December Weather25°C (77°F)82 mm (3.2 inches)57%extreme

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