Custom Merch for Events in San Francisco, CA
Merch Mob makes attendee and souvenir tees, staff, crew and security shirts, and volunteer shirts for events in San Francisco, CA, at its shop in Montclair, CA, and ships them to San Francisco. San Francisco's 18-to-34 age group makes up 27% of residents, above the US rate of 23% (Census ACS, 2020-2024), so attendee merch should look like something worth wearing again, with the poster art front and center.

San Francisco by the numbers
San Francisco has 826,079 residents, 6% fewer than in 2020 (Census estimates).
San Francisco County has 88 event promoters (performing arts, sports and similar events) with paid employees (Census County Business Patterns, 2023). That is 1.07 for every 10,000 residents, above the national figure of 0.27. 74% of them employ fewer than 10 people. The count is about where it was in 2018 (91).
That counts promoters with a payroll; one-off events run by volunteers or venues are not in it.
San Francisco County has one event promoter for every 9,390 residents. Of the 60 counties behind these pages for events, San Francisco County has the most event promoters (performing arts, sports and similar events) per resident.
- Population, 2025
- 826,079
- Since 2020
- −6%
- County
- San Francisco County
- Event promoters (performing arts, sports and similar events) in San Francisco County, 2023
- 88
- Per 10,000 county residents
- 1.07 (US 0.27)
- Time zone
- Pacific
- Median age
- 40.0 (US 38.9)
- Residents aged 18 to 34
- 27% (US 23%)
- Warmest month, average high
- September, 70°F
- Coldest month, average low
- January, 47°F
- Days at 90°F or hotter, a year
- 3
- Nights at 32°F or colder, a year
- 0
- Rain, a year
- 23 in
- USPS zone from the shop
- 4
Weather: San Francisco Downtown station, 1 mi from San Francisco's center (NOAA 1991-2020 Climate Normals). People: Census ACS 2020-2024. Counts: CBP 2023, by county, paid-employee establishments. Population: Census, July 2025.
What San Francisco's weather means for events
San Francisco barely warms up, with September peaking at an average high of 70°F, so outdoor events in any season need a hoodie or crewneck at the booth and long sleeves for staff. The warm window is brief, just September to October with average highs of 70°F or more, so size the attendee tee run for a few warm dates and weight the rest of the order toward fleece. With four or more nearly dry months a year (under half an inch of rain each), the dry season is the safe bet for outdoor dates, and the wet months call for an indoor venue or a tent plan. December brings the year's heaviest rain, about 4.8 inches, so an outdoor date that month needs tents on standby and a backup day.
| Month in San Francisco | Average high | Average low | Rain (in) | What staff and the booth need |
|---|---|---|---|---|
| January | 58°F | 47°F | 4.4 | Booth hoodies and staff long sleeves |
| February | 60°F | 48°F | 4.4 | Booth hoodies and staff long sleeves |
| March | 62°F | 49°F | 3.2 | Booth hoodies and staff long sleeves |
| April | 63°F | 50°F | 1.6 | Booth hoodies and staff long sleeves |
| May | 64°F | 51°F | 0.7 | Booth hoodies and staff long sleeves |
| June | 67°F | 53°F | 0.2 | Tees, plus long sleeves for nights |
| July | 66°F | 54°F | 0 | Tees, plus long sleeves for nights |
| August | 68°F | 56°F | 0.1 | Tees, plus long sleeves for nights |
| September | 70°F | 56°F | 0.1 | Attendee tees and bright staff shirts |
| October | 70°F | 54°F | 0.9 | Attendee tees and bright staff shirts |
| November | 64°F | 51°F | 2.6 | Booth hoodies and staff long sleeves |
| December | 58°F | 47°F | 4.8 | Booth hoodies and staff long sleeves |
Made in So Cal, shipped to San Francisco.
Orders ship to San Francisco from the shop; there is no office or pickup point in California.
San Francisco is about 368 miles from Merch Mob's shop in Montclair, CA, a straight-line distance. From the shop's ZIP code, San Francisco is USPS zone 4. San Francisco shares the shop's Pacific time zone.
From the production floor
Merch Mob production in Southern California.




Ordering from San Francisco
Which months need hoodies at an outdoor event in San Francisco?
Most of the year: average highs in San Francisco stay under 65°F from November to May, so plan hoodies for staff and the booth then, and add them to summer events that run past sunset.
More for San Francisco
Let’s build
your next drop.
Tell us what your event needs. You get a line-item quote and an honest timeline within 24 hours. Tell us where it ships and the quote covers the rest.