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January Weather in San Francisco, Bolivia

Last updated: August 22, 2025

In San Francisco, Bolivia, the average temperature in January is a pleasant 16°C (61°F), with lows dipping to 7°C (44°F) and highs reaching up to 26°C (79°F). Be prepared for some rain, as the area sees approximately 174 mm (6.8 in) of precipitation over 21 days, contributing to an average humidity of a steamy 87%.

January Temperature in San Francisco

In January, in San Francisco, the average temperature is 16°C (61°F). The maximum can reach 26°C (79°F) and the minimum can be as low as 7°C (44°F). This means it's a pleasant time for traveling, with comfortable temperatures perfect for exploring.

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

The chart illustrates January temperature patterns in San Francisco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Francisco, January typically has an average temperature of 16°C (61°F), with highs reaching up to 26°C (79°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec616059575451505256596060
Data source: Temperature data for San Francisco 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 Francisco

In San Francisco in January, the precipitation amount is 174 mm (6.8 in) over the course of 21 days.

January Precipitation Trends in San Francisco

The chart displays monthly precipitation patterns in San Francisco, 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 Francisco, January typically receives around 174 mm (6.8 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec174225185112442124235390126249
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in San Francisco

In San Francisco in January humidity is 87%. With an average temperature of 16°C (61°F), this humidity feels like a heavy blanket wrapping around you, making outdoor exploration sticky and uncomfortable, while also adding a thickness to the air that can sap your energy and enthusiasm for sightseeing.

January Average Humidity in San Francisco

This chart illustrates the average monthly humidity levels in San Francisco, 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 Francisco is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%81%78%82%82%69%49%33%42%49%78%87%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in San Francisco

In San Francisco in January, the maximum UV index reaches an alarming 17, which falls under the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to stay protected. For more details on the hourly UV index in San Francisco, you can check Hourly UV Index in San Francisco.

Maximum UV Index Levels in San Francisco for January

The chart shows the monthly maximum UV Index (UVI) for San Francisco 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 Francisco typically reaches 17, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1717161411891214171818
Data source: San Francisco 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 Francisco Compares to Other Months

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

This table compares monthly weather conditions in San Francisco, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather16°C (61°F)174 mm (6.8 inches)87%extreme
February Weather15°C (60°F)225 mm (8.9 inches)81%extreme
March Weather15°C (59°F)185 mm (7.3 inches)78%extreme
April Weather14°C (57°F)112 mm (4.4 inches)82%extreme
May Weather12°C (54°F)43 mm (1.7 inches)82%extreme
June Weather11°C (52°F)21 mm (0.8 inches)69%very high
July Weather10°C (51°F)24 mm (0.9 inches)49%very high
August Weather11°C (52°F)23 mm (0.9 inches)33%extreme
September Weather14°C (57°F)53 mm (2.1 inches)42%extreme
October Weather15°C (60°F)90 mm (3.5 inches)49%extreme
November Weather16°C (60°F)126 mm (4.9 inches)78%extreme
December Weather16°C (60°F)249 mm (9.8 inches)87%extreme

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