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October Weather in Rio Vista, United States

Last updated: June 24, 2025

In October, the average temperature in Rio Vista, United States is a pleasant 20°C (69°F). However, temperatures can fluctuate between a cool 1°C (35°F) and a sizzling 36°C (98°F). Expect approximately 134 mm (5.3 in) of precipitation spread over 9 days, with an average humidity of 72%, which adds a touch of moisture to the air.

October Temperature in Rio Vista

In October in Rio Vista, the average temperature is 20°C (69°F). Maximum temperatures can reach 36°C (98°F), while minimums can drop as low as 1°C (35°F). This range makes it essential for travelers to pack both warm and cool clothing to comfortably enjoy their time in Rio Vista.

October Weather in Rio Vista: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Rio Vista, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Vista, October typically has an average temperature of 20°C (69°F), with highs reaching up to 36°C (98°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec485061667581858579685752
Data source: Temperature data for Rio Vista 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.

October Precipitation in Rio Vista

In Rio Vista in October, the precipitation amount is 134 mm (5.3 in) over the course of 9 days.

October Precipitation Trends in Rio Vista

The chart displays monthly precipitation patterns in Rio Vista, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Rio Vista, October typically receives around 134 mm (5.3 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec56908599174816298711344556
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Rio Vista

In Rio Vista in October humidity is 72%. With an average temperature of 20°C (69°F), this humidity feels like a warm, almost tropical embrace, making it perfect for leisurely strolls but challenging for those unaccustomed to the moist air.

October Average Humidity in Rio Vista

This chart illustrates the average monthly humidity levels in Rio Vista, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Rio Vista is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%78%78%81%78%73%66%65%72%82%87%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Rio Vista

In Rio Vista in October, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Rio Vista.

Maximum UV Index Levels in Rio Vista for October

The chart shows the monthly maximum UV Index (UVI) for Rio Vista in October, 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 October, the maximum UV index in Rio Vista typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478101111111110864
Data source: Rio Vista October 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 October Weather in Rio Vista Compares to Other Months

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

This table compares monthly weather conditions in Rio Vista, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)56 mm (2.2 inches)80%moderate
February Weather10°C (50°F)90 mm (3.5 inches)79%high
March Weather16°C (61°F)85 mm (3.4 inches)78%very high
April Weather19°C (66°F)99 mm (3.9 inches)78%very high
May Weather24°C (75°F)174 mm (6.9 inches)81%extreme
June Weather27°C (82°F)81 mm (3.2 inches)78%extreme
July Weather29°C (85°F)62 mm (2.5 inches)73%extreme
August Weather29°C (85°F)98 mm (3.9 inches)66%extreme
September Weather26°C (80°F)71 mm (2.8 inches)65%very high
October Weather20°C (69°F)134 mm (5.3 inches)72%very high
November Weather14°C (57°F)45 mm (1.8 inches)82%high
December Weather11°C (52°F)56 mm (2.2 inches)87%moderate

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