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January Weather in San Juan, Bolivia

Last updated: August 22, 2025

In January, the average temperature in San Juan, Bolivia is a mild 15°C (60°F), with temperatures ranging from a cool 6°C (42°F) to a warm 28°C (82°F). Expect 98 mm (3.9 in) of precipitation over 16 days, alongside a high average humidity of 87%. Perfect for those who enjoy a refreshing atmosphere!

January Temperature in San Juan

In January in San Juan, the average temperature is 15°C (60°F), with maximums reaching 28°C (82°F) and minimums dropping as low as 6°C (42°F). This makes it an ideal time for travelers to enjoy mild weather while exploring the area.

January Weather in San Juan: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in San Juan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Juan, January typically has an average temperature of 15°C (60°F), with highs reaching up to 28°C (82°F) and lows dropping to around 6°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec605858575552515357606059
Data source: Temperature data for San Juan 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 Juan

In San Juan in January, the total precipitation amount is 98 mm (3.9 in) recorded over a span of 16 days.

January Precipitation Trends in San Juan

The chart displays monthly precipitation patterns in San Juan, 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 Juan, January typically receives around 98 mm (3.9 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec98117933611487284860116
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in San Juan

In San Juan in January humidity is 87%. With an average temperature of 15°C (60°F), this humidity feels like you're wrapped in a damp blanket, making it a challenge for travelers to stay comfortable and energetic.

January Average Humidity in San Juan

This chart illustrates the average monthly humidity levels in San Juan, 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 Juan is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%90%87%82%59%47%43%60%67%71%79%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in San Juan

In San Juan in January, the maximum UV index is 18, which corresponds to an extreme exposure category. This means that the time to burn is just 10 minutes. For more detailed information, you can check the hourly UV index in San Juan.

Maximum UV Index Levels in San Juan for January

The chart shows the monthly maximum UV Index (UVI) for San Juan 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 Juan typically reaches 18, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1818161411891214171818
Data source: San Juan 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 Juan Compares to Other Months

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

This table compares monthly weather conditions in San Juan, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather15°C (60°F)98 mm (3.9 inches)87%extreme
February Weather15°C (59°F)117 mm (4.6 inches)88%extreme
March Weather14°C (58°F)93 mm (3.7 inches)89%extreme
April Weather14°C (57°F)36 mm (1.4 inches)87%extreme
May Weather13°C (55°F)11 mm (0.4 inches)82%extreme
June Weather11°C (52°F)4 mm (0.2 inches)59%very high
July Weather11°C (51°F)8 mm (0.3 inches)47%very high
August Weather12°C (53°F)7 mm (0.3 inches)43%extreme
September Weather14°C (58°F)28 mm (1.1 inches)60%extreme
October Weather16°C (60°F)48 mm (1.9 inches)67%extreme
November Weather16°C (61°F)60 mm (2.4 inches)71%extreme
December Weather15°C (60°F)116 mm (4.6 inches)79%extreme

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