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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 14°C (58°F), with a range that can dip to a chilly 1°C (35°F) or rise to a comfortable 27°C (82°F). Expect about 67 mm (2.7 in) of precipitation spread over 7 days, contributing to an average humidity level of 85%. Stay prepared for a mix of weather!

May Temperature in San Justo

In May in San Justo, the average temperature is 14°C (58°F). Maximums can reach 27°C (82°F), and minimums can be as low as 1°C (35°F). This makes San Justo an ideal destination for travelers looking for a mild climate with pleasant day temperatures and cool nights.

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 14°C (58°F), with highs reaching up to 27°C (82°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec767370655753515358626873
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 precipitation amount is 67 mm (2.7 in) over a span of 7 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 67 mm (2.7 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec656673806856554675947167
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 85%. With an average temperature of 14°C (58°F), this humidity feels like a thick blanket wrapping around you, making even short walks feel heavy and exhausting 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 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec51%61%66%80%85%80%69%66%72%63%59%56%
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 reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the 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 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141211753468101314
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 Weather24°C (76°F)65 mm (2.6 inches)50%extreme
February Weather23°C (74°F)66 mm (2.6 inches)61%extreme
March Weather21°C (70°F)73 mm (2.9 inches)66%extreme
April Weather18°C (65°F)80 mm (3.2 inches)80%high
May Weather14°C (58°F)67 mm (2.7 inches)85%moderate
June Weather11°C (53°F)56 mm (2.2 inches)80%moderate
July Weather10°C (51°F)55 mm (2.2 inches)69%moderate
August Weather12°C (54°F)46 mm (1.8 inches)66%high
September Weather14°C (58°F)75 mm (3.0 inches)72%very high
October Weather17°C (62°F)94 mm (3.7 inches)63%very high
November Weather20°C (69°F)71 mm (2.8 inches)59%extreme
December Weather23°C (73°F)67 mm (2.6 inches)56%extreme

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