Things to Do in San Jose in August
August weather, activities, events & insider tips
Low Season · Budget Friendly
August Weather in San Jose
Temperature, rainfall and humidity at a glance
81°F (27°C)
High Temp
58°F (14°C)
Low Temp
0.0 inches (0 mm)
Rainfall
70%
Humidity
⚠ Wildfire smoke from inland fires can reduce visibility and trigger respiratory issues. Check air quality indexes before outdoor activities, hiking or cycling. Breathe easy. Know before you go.
Is August Right for You?
Weigh the advantages and considerations before booking
Advantages
- + August mornings in San Jose hit that sweet spot of 65°F (18°C) before the inland valleys start baking - good for hiking the Los Gatos Creek Trail without the sweat-soaked shirt you'd get by noon
- + Hotel rates drop 25-30% from peak summer pricing since most families have already burned through vacation days, meaning downtown boutique properties that typically require 60-day advance booking suddenly have next-week availability
- + The city's tech workforce empties out for Burning Man and back-to-school prep - Santana Row's outdoor dining has open tables at 7pm, and you can hear yourself think at craft breweries in SoFA District
- + Santa Clara County's farmers markets explode with late-summer stone fruit - the Campbell farmers market on Sundays features 15 varieties of peaches you've never heard of, plus the kind of heirloom tomatoes that make you understand why Europeans complain about American produce
Considerations
- − That 81°F (27°C) high temperature is measured downtown - drive 20 minutes south to Morgan Hill and you're looking at 95°F (35°C) by 2pm, which turns wine tasting in the Santa Clara Valley into an endurance sport
- − August marks the start of fire season, and while San Jose proper rarely burns, the smoke from inland fires creates that apocalyptic orange sky effect that ruins photos and triggers asthma for sensitive travelers
- − The Guadalupe River Trail - one of the city's best walking routes - gets that dusty, parched feeling where everything crunches underfoot and the usually-green riparian areas turn brown and crispy
Year-Round Climate
How August compares to the rest of the year
| Month | High | Low | Rainfall |
|---|---|---|---|
| Jan | 15°C | 5°C | 3.0 inches (76 mm) |
| Feb | 16°C | 6°C | 3.2 inches (81 mm) |
| Mar | 18°C | 7°C | 2.6 inches (66 mm) |
| Apr | 20°C | 9°C | 1.2 inches (30 mm) |
| May | 23°C | 11°C | 0.6 inches (15 mm) |
| Jun | 26°C | 13°C | 0.2 inches (5 mm) |
| Jul | 27°C | 14°C | 0.0 inches (0 mm) |
| Aug | 27°C | 14°C | 0.0 inches (0 mm) |
| Sep | 27°C | 14°C | 0.1 inches (3 mm) |
| Oct | 24°C | 11°C | 0.8 inches (20 mm) |
| Nov | 18°C | 7°C | 1.4 inches (36 mm) |
| Dec | 15°C | 5°C | 3.1 inches (79 mm) |
Best Activities in August
Top things to do during your visit
August in San Jose is warm at 81 degrees. The heat feels manageable though, not oppressive. Evenings cool to the high 50s. That shift carries the scent of night-blooming jasmine. The city's rhythm changes. Blues guitar chords spill from downtown courtyards during the San Jose Jazz Summer Fest. A short drive south, the pungent aroma of roasting garlic drifts from the Gilroy Garlic Festival. That smell defines late summer here.
The Escape Game at Great Mall in Milpitas
otherThis trip goes from urban sprawl to the Sierra Nevada. You will feel cool, thin mountain air. Stand in the shadow of granite monoliths like El Capitan. Hear the distant thunder of Yosemite Falls. The day includes walking among giant sequoias in the Mariposa Grove. Their cinnamon-red trunks create a cathedral stillness.
Visit to understand the profound scale of these landscapes. Photographs cannot capture it.
Insider tip: Secure a window seat on the vehicle's left side. You will get the best views of the valley's formations during the descent.
Yosemite National Park and Giant Sequoias Tour from San Jose
guided_experienceThis walking tour goes through the oldest quarters of San Jose after dusk. Humid air clings to historic brick facades. Your guide will murmur tales of lingering spirits. You will hear stories of tragic figures. See locations where unexplained shadows have been reported. Feel a palpable chill unrelated to the breeze.
Visit for an unsettling connection to the city's layered past.
Insider tip: Wear comfortable, closed-toe shoes. The route has uneven sidewalks and alleyways in low light.
4 Hour Livermore Valley Wine Tour
foodThis coastal expedition delivers staggering vistas on Highway 1. See the deep blue Pacific meet sheer cliffs. Hear waves crash in rocky coves. Smell the salty, kelp-rich air. The tour includes stops like the Bixby Creek Bridge. It often includes Monterey's Cannery Row, with sea lion barks and a fishy scent.
Visit for the raw beauty of a celebrated drive. You will not have to navigate the winding curves yourself.
Insider tip: Bring a warm layer. Fog can roll in abruptly, bringing a damp chill even in August.
San Jose Ghost Tour: The Scythe, Sacrifice, & Silhouette
walking_tourSpend an afternoon winding through sunny vineyards. Step into cool, barrel-scented tasting rooms. Sample wines with the distinct minerality of the local terroir. The experience is structured yet relaxed. You will move between a curated selection of estates. Taste the bright, acidic finish of a Sauvignon Blanc.
Visit for the accessible discovery of a wine region. It is known for strong reds and crisp whites. The drive from the city is short.
Insider tip: Focus your tasting notes on the region's signature Petite Sirah and Rhône-style blends. They thrive in the valley's warm climate.
Big Sur Monterey California Coast from San Jose 1 - 12 people
otherTurn a heavy, cold dial on a safe. Hear the sharp click of a lock. This attraction has themed rooms. You must decipher physical puzzles and find clues within 60 minutes.
Visit for the collaborative rush of solving a tangible mystery.
Insider tip: Book a weekday morning session. The mall is quiet then. You will get the game master's full attention.
Redwood Forest, Santa Cruz Harbor 1-Day Trip from San Francisco
day_tripThis trip contrasts an ancient redwood grove with the Santa Cruz harbor. Feel the cool, moist air among towering trees. Later, taste the tangy salt of fresh fish and chips. Watch fishing boats bob in the marina.
Visit for the striking transition from serene forest to a busy beach town. It happens in one day.
Insider tip: Take the quieter, less-traveled paths in the redwood forest. Find moments of complete solitude there.
Where to Stay in San Jose in August
Hand-picked hotels across price tiers for August travellers.
August Events & Festivals
What's happening during your visit
Early August
San Jose Jazz Summer Fest
The festival that takes over downtown for one weekend in early August - 100+ acts across 12 stages, from blues guitarists shredding in Plaza's Mexican restaurant courtyard to jazz vocalists echoing through the California Theatre. The sound bleeds between venues in that perfect way where you can stand at St. James Park and hear three different genres competing for your attention.
Late July/Early August
Gilroy Garlic Festival
Yes, it's 35 minutes south. But this is the event that makes international news for garlic ice cream and garlic everything else. The smell hits you from Highway 101 - this pungent, earthy aroma that somehow works its way into clothing fabric. Local tip: skip the famous garlic ice cream (it's a gimmick) and go for the scampi booth where volunteers cook 5,000 pounds of shrimp in actual wine barrels over open flames.
Packing Checklist
Bookmark this page — your progress is saved between visits
Need the full list with shopping links?
Climate-specific gear, brand recommendations, and what to leave at home.
View San Jose Packing List →Essential Tips
Insider knowledge and common pitfalls to avoid
Insider Knowledge
The VTA light rail is reliable for getting to wineries in the south county. The line to Morgan Hill drops you within walking distance of three tasting rooms. The Saturday schedule runs every 30 minutes so you can taste without driving. Sip safely.
August is when tech companies host their summer parties. Many downtown bars and restaurants get booked for private events on Thursday/Friday evenings. Always call ahead or you'll face 'private event' signs and closed doors. Plan ahead.
The best parking hack: use the garages under San Pedro Square rather than street parking. First 90 minutes are free, and August's low tourist numbers mean you find spaces without circling for 20 minutes. Save time. Save cash.
Morning fog from the bay creates this surreal effect where downtown sits under grey skies while the Santa Cruz Mountains glow golden. Drive up Highway 17 just 10 minutes for photos that look like two different climates. Bring the camera.
Avoid These Mistakes
Avoid planning outdoor activities for 2-5pm. This is when inland heat peaks and even locals retreat indoors. That winery visit at 3pm will feel like sitting in a sauna. Wait it out.
Never assume San Jose weather equals San Francisco weather. SF might be 62°F (17°C) and foggy while San Jose bakes at 85°F (29°C). Check forecasts specifically for San Jose zip codes, not 'Bay Area' generally. Look closer.
Skip booking hotels near the airport to save money. August's low crowds mean downtown properties often cost the same as airport chains, and you'll spend the savings on Ubers to reach anything interesting. Stay central.
Explore More Activities in San Jose
Didn't see anything interesting yet?
Browse Viator's full catalog of tours, day trips, food experiences, and private guides in San Jose.
See All San Jose Tours on ViatorFrequently Asked Questions
What cultural events take place in San Jose in August?
August is one of San Jose's busiest months for culture. The San Jose Jazz Summer Fest — one of the largest jazz festivals on the West Coast — typically dominates mid-August with free outdoor stages and ticketed headline acts spread across downtown. Silicon Valley Pride usually fills the final weekend of the month around City Hall Plaza with performances, vendors, and community programming. Japantown's Obon Festival, a traditional Japanese Buddhist celebration with taiko drumming and bon odori dancing, also often falls in late July or early August — check japantownsanjose.org for exact dates.
What are the best activities to do in San Jose in August?
August's reliably dry, sunny weather makes it ideal for outdoor exploration: hiking the oak-lined trails at Alum Rock Park, cycling the Guadalupe River Trail, or catching a San Jose Earthquakes MLS match at PayPal Park. Downtown, the Tech Interactive museum and San Jose Museum of Art offer air-conditioned escapes during the hottest part of the afternoon (typically 2–5 pm). Evenings cool down pleasantly to around 62°F (17°C), making San Pedro Square Market a great spot for outdoor dining and live music.
What are the best gatherings and community events in San Jose in August?
Beyond the Jazz Fest and Pride, San Jose's neighborhood-level calendar fills out nicely in August. The Downtown Farmers Market runs every Friday year-round and draws a lively crowd in summer. The Japantown First Fridays art walk is worth timing your visit around, and the Mexican Heritage Plaza often hosts weekend performances celebrating Latin arts and culture. For something more low-key, the San Jose Public Library system runs free summer programming through August — a genuine window into local community life.
What is the weather like in San Jose in August?
August is hot, sunny, and almost entirely rain-free — the driest month of the year in San Jose. Daytime highs typically sit between 85°F and 92°F (29–33°C), though heat waves can occasionally push temperatures past 100°F (38°C). Mornings and evenings are comfortable, usually dropping to 60–65°F (15–18°C), thanks to cool air funneling in from the Bay. Unlike coastal California, San Jose doesn't get much of the marine layer fog that moderates temperatures in San Francisco.
Is August a good time to visit San Jose?
August is arguably San Jose's most energetic month for visitors who enjoy warm weather and outdoor events. The festival calendar peaks, parks and trails are in great shape, and the evenings are genuinely pleasant for walking the downtown core. The trade-off is heat — midday can be brutal, especially in years with heat advisories — and hotel rates trend higher during major event weekends. If you're flexible, mid-August around the Jazz Fest offers the best concentration of things to do.
How crowded is San Jose in August?
San Jose in August is busy but not overwhelmingly so compared to coastal California destinations. Downtown fills up noticeably during the Jazz Summer Fest and Pride weekends, when hotels book out and parking becomes scarce — book accommodation at least three to four weeks ahead for those specific dates. Outside of event weekends, the city moves at a normal pace. Popular spots like Santana Row and the Rosicrucian Egyptian Museum don't typically require advance reservations.
What should I pack for a visit to San Jose in August?
Light, breathable clothing is the priority — linen or moisture-wicking fabrics handle the midday heat well. Sunscreen and a wide-brimmed hat are essentials; UV intensity is high in the South Bay's inland heat. Pack a light layer for evenings, which can feel surprisingly cool once the sun sets. Comfortable walking shoes matter more than anything else if you're planning to explore the downtown festival scene or the city's trail networks.
Are there free things to do in San Jose in August?
Yes — a meaningful portion of August's best offerings cost nothing. The San Jose Jazz Summer Fest has always included free outdoor stages alongside its paid ticketed shows. The Guadalupe River Trail and Alum Rock Park are free to enter. The downtown SAP Center plaza and San Pedro Square often host free live music on weekends. The Tech Interactive offers free admission on the second Sunday of each month, though check their site to confirm that program is still active for your visit.
What day trips work well from San Jose in August?
August's heat actually makes San Jose one of the better Silicon Valley bases for day-tripping to cooler spots. Santa Cruz is about 40 miles southwest over Highway 17 — the beach and boardwalk are peak-season busy but genuinely refreshing compared to inland heat. The Monterey Bay Aquarium is about 75 miles south and rarely disappoints. For wine lovers, the Santa Cruz Mountains AVA is 30–45 minutes away and far less crowded than Napa in summer. Go early to avoid traffic on Highway 17 returning in the evening.