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February Weather in Santa Rosa, United States

Last updated: June 24, 2025

In February, the average temperature in Santa Rosa, United States hovers around 10°C (50°F). Temperatures can vary dramatically, with a minimum of -4°C (26°F) and reaching up to 26°C (80°F). Be prepared for some rain, as the area receives an average precipitation of 155 mm (6.1 in) over about 8 days. With an average humidity of 84%, it’s a moist month that may require an umbrella and layers!

February Temperature in Santa Rosa

In February in Santa Rosa, the average temperature is 10°C (50°F). The maximum can reach 26°C (80°F), while the minimum can drop as low as -4°C (26°F). This fluctuation in temperatures makes it essential for travelers to pack layers to accommodate both warm and chilly weather.

February Weather in Santa Rosa: Daily Temperature Highs, Lows, and Averages

The chart illustrates February temperature patterns in Santa Rosa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Rosa, February typically has an average temperature of 10°C (50°F), with highs reaching up to 26°C (80°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec485052576269717169635348
Data source: Temperature data for Santa Rosa 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.

February Precipitation in Santa Rosa

In Santa Rosa in February, the precipitation amount is 155 mm (6.1 in) spread over a period of 8 days.

February Precipitation Trends in Santa Rosa

The chart displays monthly precipitation patterns in Santa Rosa, with values for each month alongside February’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how February’s conditions compare to those of other months. In Santa Rosa, February typically receives around 155 mm (6.1 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec13915597452820024158101
Data source: Precipitation data for February generated using information from the Copernicus Climate Change Service.
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February Humidity in Santa Rosa

In Santa Rosa in February, humidity is 84%. With an average temperature of 10°C (50°F), this humidity feels like a chilly dampness that clings to your skin, making outdoor activities less comfortable and prompting travelers to seek refuge in cozy, warm cafes or indoor attractions.

February Average Humidity in Santa Rosa

This chart illustrates the average monthly humidity levels in Santa Rosa, with February’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In February, average humidity in Santa Rosa is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%83%80%80%76%70%66%68%72%84%84%
Data source: Humidity data for February generated using information from the Copernicus Climate Change Service.

February UV Index in Santa Rosa

In Santa Rosa in February, 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 Santa Rosa.

Maximum UV Index Levels in Santa Rosa for February

The chart shows the monthly maximum UV Index (UVI) for Santa Rosa in February, 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 February, the maximum UV index in Santa Rosa typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109643
Data source: Santa Rosa February 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 February Weather in Santa Rosa Compares to Other Months

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

This table compares monthly weather conditions in Santa Rosa, showing how February’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (49°F)139 mm (5.5 inches)86%moderate
February Weather10°C (50°F)155 mm (6.1 inches)84%moderate
March Weather11°C (52°F)97 mm (3.8 inches)83%high
April Weather14°C (57°F)45 mm (1.8 inches)80%very high
May Weather17°C (62°F)27 mm (1.1 inches)80%very high
June Weather21°C (69°F)2 mm (0.1 inches)76%extreme
July Weather22°C (71°F)0 mm (0.0 inches)70%extreme
August Weather21°C (71°F)0 mm (0.0 inches)66%very high
September Weather20°C (69°F)2 mm (0.1 inches)68%very high
October Weather17°C (63°F)41 mm (1.6 inches)72%high
November Weather12°C (54°F)58 mm (2.3 inches)84%moderate
December Weather9°C (48°F)101 mm (4.0 inches)84%moderate

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