October weather forecast
California, USA

October in California brings more distinct signs of autumn, with temperatures continuing to cool and subtle changes in precipitation patterns. The state's diverse climate zones lead to a variety of weather experiences during this month.

In coastal regions such as San Francisco and Los Angeles, temperatures generally range from 60°F (15.6°C) to 70°F (21.1°C). The influence of the Pacific Ocean keeps these areas mild, but a noticeable cooling compared to September is evident.

Inland areas and the Sierra Nevada mountains experience temperatures between 40°F (4.4°C) to 50°F (10°C). The cooling trend is more pronounced here, with crisp nights and mild days typical of the fall season.

Desert regions like Death Valley continue to cool from their summer highs, with temperatures ranging from 80°F (26.7°C) to 90°F (32.2°C). The extreme heat of summer has passed, and more temperate conditions prevail.

Precipitation starts to increase in October, particularly in the northern regions. Rainfall remains relatively low, but the shift towards the wetter winter season becomes more apparent.

Comparing October to September, a continued cooling trend is evident across California. Coastal areas remain mild but are noticeably cooler, while inland and desert regions see a more marked transition towards autumn conditions. October's weather is characterized by clear, crisp days and cooler nights, and the increase in precipitation in the north hints at the wetter months to come. The shift from the warmth of summer to the mild conditions of fall is well underway, making October a month of pleasant, transitional weather in California. The state's varied geography and climate zones create a complex weather pattern, with each region experiencing October's changes in its own unique way.

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• Los Angeles - October »
  In Los Angeles, during October, the rain falls for 2.5 days and regularly aggregates up to 0.16" (4mm) of precipitation. On the first day of October in Los Angeles, sunrise is at 6:48 am and sunset at 6:36 pm.
• San Francisco - October »
  On the first day of October in San Francisco sunrise is at 7:06 am and sunset at 6:52 pm. With an average relative humidity of 67%, October is the least humid month in San Francisco.
• San Diego - October »
  On the first day of October in San Diego, California, sunrise is at 6:43 am and sunset at 6:32 pm. October in San Diego is characterized by cooling temperatures, shorter daylight hours, and a slight increase in rainfall, measuring at 0.31" (8mm).
• San Jose - October »
  On the last day of October, in San Jose, sunrise is at 7:32 am and sunset at 6:10 pm PDT. In San Jose, during October, the rain falls for 2.5 days and regularly aggregates up to 0.16" (4mm) of precipitation.
• Sacramento - October »
  On the first day of October in Sacramento sunrise is at 7:02 am and sunset at 6:48 pm. In Sacramento, California, in October, it is raining for 3.4 days, with typically 0.39" (10mm) of accumulated precipitation.
• Fresno - October »
  In Fresno, California, during October, the rain falls for 3.2 days and regularly aggregates up to 0.43" (11mm) of precipitation. The commencement of October in Fresno involves a temperature shift, with the average high-temperature dropping from a hot 91.8°F (33.2°C) in September to a warm 78.8°F (26°C).
• Long Beach - October »
  In October, the average ocean temperature in Long Beach is 64.8°F (18.2°C). In October, in Long Beach the rain falls for 3.7 days.
• Oakland - October »
  The least humid month in Oakland is October, with an average relative humidity of 67%. With an average relative humidity of 67%, October is the least humid month in Oakland.
• Bakersfield - October »
  On the first day of October in Bakersfield sunrise is at 6:51 am and sunset at 6:39 pm. In Bakersfield, in October, during 3 rainfall days, 0.2" (5mm) of precipitation is typically accumulated.
• Anaheim - October »
  On the last day of October, in Anaheim sunrise is at 7:10 am and sunset at 5:59 pm PDT. In Anaheim during October, the rain falls for 3.5 days and regularly aggregates up to 0.28" (7mm) of precipitation.
• Santa Ana - October »
  On the first day of October in Santa Ana sunrise is at 6:46 am and sunset at 6:35 pm. In October, in Santa Ana the rain falls for 3.9 days.
• Riverside - October »
  On the first day of October in Riverside, sunrise is at 6:44 am and sunset at 6:33 pm. The arrival of October in Riverside suggests a slight decrease in the average high-temperature, moving from a tropical 88.3°F (31.3°C) in September to a warm 79.5°F (26.4°C).