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January Weather in San Jose de Mayo, Uruguay

Last updated: August 28, 2025

In San Jose de Mayo, Uruguay, the average temperature in January hovers around 24°C (75°F). While you may enjoy pleasant days, be prepared for a range of temperatures, with minimums dipping to 11°C (52°F) and maximums soaring up to 41°C (106°F). The region sees an average precipitation of 78 mm (3.1 in) over 7 days, accompanied by a comfortable average humidity of 63%.

January Temperature in San Jose de Mayo

In January in San Jose de Mayo, the average temperature is 24°C (75°F), with maximums reaching up to 41°C (106°F) and minimums dipping as low as 11°C (52°F). Be sure to pack for a range of temperatures to fully enjoy your visit.

January Weather in San Jose de Mayo: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in San Jose de Mayo, 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 de Mayo, January typically has an average temperature of 24°C (75°F), with highs reaching up to 41°C (106°F) and lows dropping to around 11°C (52°F).
JanFebMarAprMayJunJulAugSepOctNovDec757369655753525457616872
Data source: Temperature data for San Jose de Mayo 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.

January Precipitation in San Jose de Mayo

In San Jose de Mayo in January, the total precipitation amount is 78 mm (3.1 in) over a duration of 7 days.

January Precipitation Trends in San Jose de Mayo

The chart displays monthly precipitation patterns in San Jose de Mayo, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In San Jose de Mayo, January typically receives around 78 mm (3.1 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec78100897210994898183916660
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in San Jose de Mayo

In San Jose de Mayo in January humidity is 63%. With an average temperature of 24°C (75°F), this humidity feels like a warm embrace, making travel both enjoyable and slightly sticky, encouraging visitors to explore the outdoors while seeking shade intermittently.

January Average Humidity in San Jose de Mayo

This chart illustrates the average monthly humidity levels in San Jose de Mayo, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in San Jose de Mayo is approximately 63%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec63%69%73%79%83%80%72%72%76%71%68%65%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in San Jose de Mayo

In San Jose de Mayo in January, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in San Jose de Mayo, you can check here.

Maximum UV Index Levels in San Jose de Mayo for January

The chart shows the monthly maximum UV Index (UVI) for San Jose de Mayo in January, 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 January, the maximum UV index in San Jose de Mayo typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141311754468111314
Data source: San Jose de Mayo January 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 January Weather in San Jose de Mayo Compares to Other Months

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

This table compares monthly weather conditions in San Jose de Mayo, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (75°F)78 mm (3.1 inches)63%extreme
February Weather23°C (73°F)100 mm (3.9 inches)69%extreme
March Weather21°C (70°F)89 mm (3.5 inches)73%extreme
April Weather18°C (65°F)72 mm (2.8 inches)79%high
May Weather14°C (58°F)109 mm (4.3 inches)82%moderate
June Weather12°C (54°F)94 mm (3.7 inches)80%moderate
July Weather11°C (52°F)89 mm (3.5 inches)72%moderate
August Weather12°C (54°F)81 mm (3.2 inches)72%high
September Weather14°C (58°F)83 mm (3.3 inches)76%very high
October Weather16°C (62°F)91 mm (3.6 inches)71%extreme
November Weather20°C (68°F)66 mm (2.6 inches)68%extreme
December Weather22°C (72°F)60 mm (2.3 inches)65%extreme

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