August weather forecast
California, USA

August continues the summer trend in California with warm temperatures and dry conditions, but subtle changes begin to emerge as the state approaches the end of the summer season.

Coastal cities like San Francisco and Los Angeles maintain their moderate climate, with temperatures ranging from 70°F (21.1°C) to 80°F (26.7°C). While still warm, the coastal influence often keeps these areas cooler than other parts of the state.

Inland regions and the Sierra Nevada mountains experience temperatures from 50°F (10°C) to 60°F (15.6°C). The weather is typically warm, but there may be a slight decrease in temperature compared to July, hinting at the approaching autumn.

Desert regions, such as Death Valley, remain hot but may begin to experience a slight drop in temperatures. Although still above 100°F (37.8°C), the extreme highs of July start to recede. However, August remains one of the hottest months in these areas.

Rainfall continues to be rare in August, and the state remains predominantly dry. The pattern of minimal precipitation in the northern regions persists, but overall, rain is scarce.

Comparing August to July, there is a continuation of summer weather, with only subtle signs of the impending transition to autumn. Coastal areas remain temperate, while inland and desert regions may begin to see a slight decrease in temperatures. The state's varied topography and proximity to the Pacific Ocean create a complex weather pattern in August, with warm but not excessively hot conditions in most areas and only slight variations from the weather in July. The gradual shift towards cooler temperatures in some parts of the state hints at the end of summer and the approaching change in seasons.

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• Los Angeles - August »
  August is the last complete summer month in Los Angeles with high temperatures and plentiful sunshine. The temperatures in Los Angeles, California, reach their highest averages in August, with highs of 83.3°F (28.5°C) and lows of 64.9°F (18.3°C).
• San Francisco - August »
  In San Francisco, California, during August, the rain falls for 2.7 days and regularly aggregates up to 0.08" (2mm) of precipitation. In San Francisco in August, the average water temperature is 56.7°F (13.7°C).
• San Diego - August »
  The month with the warmest seawater in San Diego is August, with an average ocean temperature of 68°F (20°C). San Diego's August weather, marked by an average high temperature of 77.4°F (25.2°C) and an average low temperature of 65.7°F (18.7°C), is the warmest in the year.
• San Jose - August »
  The months with the least rainfall in San Jose are June through August Rain falls for 0.4 days and accumulates 0.04" (1mm) of rain. San Jose records a significant temperature drop in August nights, lowering to an average of 56.5°F (13.6°C).
• Sacramento - August »
  As summer hits its stride in Sacramento, August echoes July's heat, but with a slight dip in maximum temperature to 93.6°F (34.2°C). On the last day of August, in Sacramento, sunrise is at 6:34 am and sunset at 7:38 pm PDT.
• Fresno - August »
  The months with the least rainfall in Fresno, California, are June and August Rain falls for 1.2 days and accumulates 0.08" (2mm) of rain. The months with the most sunshine in Fresno, California, are June through August, with an average of 12.1h of sunshine.
• Long Beach - August »
  July and August, with an average ocean temperature of 67.8°F (19.9°C), are months with the warmest seawater in Long Beach, California. Long Beach experiences its highest temperatures in August, with an average peak of 79.5°F (26.4°C) and a low of 64.9°F (18.3°C).
• Oakland - August »
  Yet, the most significant aspect of August is the maximum average temperature of 73.2°F (22.9°C), making it the hottest month of the year in Oakland. August is the first month it rains in Oakland, California.
• Bakersfield - August »
  June and August are months with the least rain in Bakersfield when the rain falls for 0.8 days and typically aggregates up to 0.04" (1mm) of rain. June through August, with an average maximum UV index of 7, are months with the highest UV index in Bakersfield, California.
• Anaheim - August »
  Anaheim's August weather, with an average high temperature of 83.5°F (28.6°C) and an average low temperature of 65.5°F (18.6°C), tends to be the warmest of the year. The months with the most sunshine in Anaheim are July and August, with an average of 12h of sunshine.
• Santa Ana - August »
  August in Santa Ana is typically the warmest month of the year, with the temperature reaching a yearly peak of 83.1°F (28.4°C). On the first day of August in Santa Ana sunrise is at 6:03 am and sunset at 7:52 pm.
• Riverside - August »
  August contends with July for the hottest month in Riverside, California as temperatures rove around the 90s°F. July and August, with an average of 12.1h of sunshine, are months with the most sunshine in Riverside, California.