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January Weather in Mountain View, United States

Last updated: June 24, 2025

In January, the average temperature in Mountain View, United States hovers around 2°C (35°F), with minimums plummeting to -18°C (1°F) and maximums reaching a comfortable 20°C (69°F). Expect 79 mm (3.1 in) of precipitation over approximately 8 days, contributing to an average humidity level of 83%. Stay prepared for varying weather conditions!

January Temperature in Mountain View

In January in Mountain View, the average temperature is 2°C (35°F). The maximum can reach 20°C (69°F), and the minimum can be as low as -18°C (1°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for their visit.

January Weather in Mountain View: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Mountain View, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mountain View, January typically has an average temperature of 2°C (35°F), with highs reaching up to 20°C (69°F) and lows dropping to around -18°C (1°F).
JanFebMarAprMayJunJulAugSepOctNovDec353849556675797672594641
Data source: Temperature data for Mountain View 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 Mountain View

In Mountain View in January, the precipitation amount is 79 mm (3.1 in) during 8 days, indicating a relatively wet period for the area.

January Precipitation Trends in Mountain View

The chart displays monthly precipitation patterns in Mountain View, 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 Mountain View, January typically receives around 79 mm (3.1 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec791071481641897780108531227371
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Mountain View

In Mountain View in January humidity is 83%. With an average temperature of 2°C (35°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and travel quite taxing.

January Average Humidity in Mountain View

This chart illustrates the average monthly humidity levels in Mountain View, 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 Mountain View is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%81%80%80%83%83%76%69%68%72%83%87%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Mountain View

In Mountain View in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Mountain View, you can check the information here.

Maximum UV Index Levels in Mountain View for January

The chart shows the monthly maximum UV Index (UVI) for Mountain View 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 Mountain View typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710111111109753
Data source: Mountain View 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 Mountain View Compares to Other Months

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

This table compares monthly weather conditions in Mountain View, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)79 mm (3.1 inches)83%moderate
February Weather3°C (39°F)107 mm (4.2 inches)81%high
March Weather9°C (49°F)148 mm (5.8 inches)80%high
April Weather13°C (55°F)164 mm (6.5 inches)80%very high
May Weather19°C (66°F)189 mm (7.4 inches)83%extreme
June Weather24°C (75°F)77 mm (3.0 inches)83%extreme
July Weather26°C (79°F)80 mm (3.2 inches)76%extreme
August Weather24°C (76°F)108 mm (4.2 inches)69%very high
September Weather22°C (72°F)53 mm (2.1 inches)68%very high
October Weather15°C (59°F)122 mm (4.8 inches)72%high
November Weather8°C (46°F)73 mm (2.9 inches)83%moderate
December Weather5°C (41°F)71 mm (2.8 inches)86%moderate

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