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May Weather in San Salvador, Argentina

Last updated: August 22, 2025

In May, the average temperature in San Salvador, Argentina hovers around 15°C (60°F), with a minimum of 1°C (35°F) and a maximum reaching 29°C (85°F). Expect around 139 mm (5.5 in) of precipitation spread over 8 days, contributing to a high average humidity of 82%. Stay prepared for a mix of cool and warm days along with a fair share of rain!

May Temperature in San Salvador

In May in San Salvador, the average temperature is 15°C (60°F). Maximums can reach 29°C (85°F), while minimums can drop to as low as 1°C (35°F). This weather makes San Salvador a perfect destination for travelers looking to enjoy mild temperatures and a range of outdoor activities.

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

The chart illustrates May temperature patterns in San Salvador, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Salvador, May typically has an average temperature of 15°C (60°F), with highs reaching up to 29°C (85°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec777572675955545761667275
Data source: Temperature data for San Salvador 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 Salvador

In San Salvador in May, the total precipitation amount is 139 mm (5.5 in), which occurs over the course of 8 days.

May Precipitation Trends in San Salvador

The chart displays monthly precipitation patterns in San Salvador, 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 Salvador, May typically receives around 139 mm (5.5 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec126928410414098669210110484100
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in San Salvador

In San Salvador in May humidity is 82%. With an average temperature of 15°C (60°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sticky and draining, which can hinder your travel experience.

May Average Humidity in San Salvador

This chart illustrates the average monthly humidity levels in San Salvador, 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 Salvador is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec59%57%69%78%82%81%66%54%61%59%58%68%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in San Salvador

In San Salvador 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 Salvador.

Maximum UV Index Levels in San Salvador for May

The chart shows the monthly maximum UV Index (UVI) for San Salvador 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 Salvador typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151312854569111314
Data source: San Salvador 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 Salvador Compares to Other Months

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

This table compares monthly weather conditions in San Salvador, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (78°F)126 mm (4.9 inches)59%extreme
February Weather24°C (75°F)92 mm (3.6 inches)56%extreme
March Weather22°C (72°F)84 mm (3.3 inches)69%extreme
April Weather20°C (67°F)104 mm (4.1 inches)78%very high
May Weather15°C (60°F)139 mm (5.5 inches)82%moderate
June Weather13°C (55°F)98 mm (3.9 inches)81%moderate
July Weather12°C (54°F)66 mm (2.6 inches)66%moderate
August Weather14°C (57°F)92 mm (3.6 inches)54%high
September Weather16°C (61°F)101 mm (4.0 inches)60%very high
October Weather19°C (66°F)104 mm (4.1 inches)59%extreme
November Weather22°C (72°F)84 mm (3.3 inches)57%extreme
December Weather24°C (76°F)100 mm (3.9 inches)68%extreme

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