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October Weather in San Leandro, United States

Last updated: June 24, 2025

In San Leandro, United States, the average temperature in October hovers around 17°C (63°F), with a minimum of 5°C (41°F) and a maximum reaching up to 34°C (93°F). During this time, you can expect an average precipitation of 24 mm (1.0 in) over the course of 1 day, accompanied by a comfortable average humidity level of 62%.

October Temperature in San Leandro

In October in San Leandro, the average temperature is 17°C (63°F). Maximum temperatures can reach 34°C (93°F), while minimums can drop to as low as 5°C (41°F). It's a good time to pack layers and enjoy a mix of warm and cool weather for your travels.

October Weather in San Leandro: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in San Leandro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Leandro, October typically has an average temperature of 17°C (63°F), with highs reaching up to 34°C (93°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec515254576064646566625550
Data source: Temperature data for San Leandro 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 San Leandro

In San Leandro in October, the precipitation amount is 24 mm (1.0 in) during 1 day.

October Precipitation Trends in San Leandro

The chart displays monthly precipitation patterns in San Leandro, 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 San Leandro, October typically receives around 24 mm (1.0 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec94917430182001244281
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in San Leandro

In San Leandro in October humidity is 62%. With an average temperature of 17°C (63°F), this humidity feels like a refreshing embrace, making it pleasant for traveling as long as you stay hydrated and take breaks in the shade.

October Average Humidity in San Leandro

This chart illustrates the average monthly humidity levels in San Leandro, 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 San Leandro is approximately 62%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%82%78%71%64%59%54%55%62%78%80%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in San Leandro

In San Leandro in October, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in San Leandro.

Maximum UV Index Levels in San Leandro for October

The chart shows the monthly maximum UV Index (UVI) for San Leandro 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 San Leandro typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3589101111109743
Data source: San Leandro 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 San Leandro Compares to Other Months

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

This table compares monthly weather conditions in San Leandro, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (51°F)94 mm (3.7 inches)82%moderate
February Weather11°C (53°F)91 mm (3.6 inches)84%moderate
March Weather12°C (54°F)73 mm (2.9 inches)82%very high
April Weather14°C (58°F)29 mm (1.2 inches)78%very high
May Weather15°C (60°F)18 mm (0.7 inches)71%very high
June Weather18°C (64°F)2 mm (0.1 inches)64%extreme
July Weather18°C (64°F)0 mm (0.0 inches)58%extreme
August Weather18°C (65°F)0 mm (0.0 inches)54%very high
September Weather19°C (66°F)1 mm (0.0 inches)55%very high
October Weather17°C (63°F)24 mm (1.0 inches)62%high
November Weather13°C (56°F)42 mm (1.7 inches)78%moderate
December Weather10°C (51°F)80 mm (3.2 inches)80%moderate

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