Things to Do in Sanjose in October
October weather, activities, events & insider tips
October Weather in Sanjose
Is October Right for You?
Advantages
- Perfect tech conference season - October hosts major Silicon Valley conferences including Dreamforce spillover events, with comfortable 25-33°C (77-91°F) temperatures ideal for outdoor networking
 - Farmers market peak season - local produce is at its finest with apple harvest season, pumpkin displays, and perfect 70% humidity for outdoor market browsing
 - Optimal hiking conditions in nearby Santa Cruz Mountains - trails are dry after summer but temperatures haven't dropped to winter lows, with visibility extending 50-80 km (31-50 miles) on clear days
 - Tourism shoulder season pricing - hotel rates drop 15-25% compared to summer peaks, while weather remains consistently pleasant for sightseeing
 
Considerations
- Unpredictable afternoon showers on 10 days throughout the month - locals carry light jackets even on sunny mornings as temperatures can feel 3-5°C (5-9°F) cooler when wet
 - Fire season air quality concerns - October historically sees the worst air quality days when winds shift, with AQI occasionally spiking above 100 during red flag warnings
 - Tech event crowds - accommodation books up quickly near convention centers, and popular restaurants require reservations 5-7 days ahead during major conference weeks
 
Best Activities in October
Santa Cruz Mountains Hiking Trails
October offers ideal hiking conditions with dry trails after summer and comfortable temperatures averaging 28°C (82°F) during midday. The redwood groves provide natural cooling, and you'll avoid both summer crowds and winter rain closures. Morning fog typically lifts by 10am, revealing spectacular valley views extending 60 km (37 miles) to the bay.
Silicon Valley Tech Campus Tours
October is prime season for tech campus visits, with many companies hosting special events and product launches. Weather is perfect for outdoor portions of tours, and you'll catch the buzz of new academic year partnerships with Stanford and other universities. The 70% humidity makes walking between buildings comfortable.
Monterey Bay Wine Country Tours
October marks crush season in nearby wine regions, offering unique harvest experiences impossible other times of year. The 51 mm (2.0 inches) of rainfall refreshes vineyard air without impacting outdoor tastings. Temperatures of 25-33°C (77-91°F) are perfect for cycling between wineries, and you'll witness actual winemaking in progress.
San Francisco Bay Sailing Excursions
October delivers consistent afternoon winds perfect for sailing, with less fog than summer months. Water temperatures stabilize around 16°C (61°F), and you'll enjoy crystal-clear views of the city skyline. The variable weather conditions create dramatic cloud formations perfect for photography, especially during the golden hour from 5-6pm.
Palo Alto Farmers Market Food Tours
October showcases peak autumn produce including heritage apples, winter squash, and locally-made artisanal products. The comfortable humidity levels mean food samples don't spoil quickly in the warmth. Market vendors offer seasonal specialties like fresh cider and pumpkin-spiced local treats unavailable other months.
Rosicrucian Egyptian Museum Cultural Experiences
October's moderate temperatures make the indoor-outdoor museum complex comfortable for extended visits. The museum often hosts special autumn exhibitions, and the outdoor gardens are at their most photogenic with fall lighting. The 8 UV index means you can enjoy courtyard areas without harsh shadows on artifacts.
October Events & Festivals
San Jose Jazz Festival
Multiple venues across downtown host intimate jazz performances in perfect outdoor weather. Local food trucks complement the music scene, and the comfortable evening temperatures of 25°C (77°F) make for ideal festival conditions.
Pumpkin Festival at Half Moon Bay
Just 45 km (28 miles) away, this massive pumpkin celebration features record-breaking giant pumpkins, local crafts, and perfect autumn atmosphere. The coastal location offers cooler temperatures and stunning Pacific views.