Custom Merch for Sports Teams in San Diego, CA
Merch Mob makes printed jerseys, practice shirts, and warmups and team hoodies for sports teams in San Diego, CA, at its shop in Montclair, CA, and ships them to San Diego. In San Diego, 18% of residents are under 18, below the 22% US share (Census ACS, 2020-2024), so adult leagues and adult size runs are likely to make up a bigger part of team orders.
San Diego by the numbers
San Diego has 1,406,106 residents, up 1.6% since 2020 (Census estimates).
San Diego County has 23 sports teams and clubs with paid employees (Census County Business Patterns, 2023). That is 0.070 for every 10,000 residents, above the national figure of 0.044. 61% of them employ fewer than 10 people.
That count is mostly professional and semi-professional teams with a payroll; most youth and amateur clubs are not in it.
San Diego County as a whole has 3,282,248 residents, about the same as in 2020. San Diego County has one sports team or club for every 142,710 residents.
- Population, 2025
- 1,406,106
- Since 2020
- +1.6%
- County
- San Diego County
- Sports teams and clubs in San Diego County, 2023
- 23
- Per 10,000 county residents
- 0.070 (US 0.044)
- Time zone
- Pacific
- Median age
- 36.2 (US 38.9)
- Residents under 18
- 18% (US 22%)
- Warmest month, average high
- August, 82°F
- Coldest month, average low
- December, 45°F
- Days at 90°F or hotter, a year
- 16
- Nights at 32°F or colder, a year
- 0
- Rain, a year
- 11 in
- USPS zone from the shop
- 2
Weather: San Diego Montgomery Field station, 1 mi from San Diego'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 Diego's weather means for sports teams
August averages a high of 82°F and January a high of 67°F, a narrow range that lets a team use one practice tee design year-round and keep the layering simple. Night games are the one time to dress warmer: December lows average 45°F, so add a hoodie or quarter-zip per player and a jacket for coaches. April to November brings average highs of 70°F or more, which is when a short-sleeve practice kit does most of the work. Only about 11 inches of rain fall in a year, so plan for sun rather than storms: a team cap for every player and a lightweight long-sleeve sun shirt for all-day tournament weekends.
| Month in San Diego | Average high | Average low | Rain (in) | What the team wears |
|---|---|---|---|---|
| January | 67°F | 46°F | 2.3 | Tees plus warmup quarter-zips |
| February | 67°F | 47°F | 2.7 | Tees plus warmup quarter-zips |
| March | 69°F | 50°F | 1.6 | Tees plus warmup quarter-zips |
| April | 71°F | 52°F | 0.8 | Practice tees and game jerseys |
| May | 72°F | 57°F | 0.3 | Practice tees and game jerseys |
| June | 75°F | 60°F | 0.1 | Practice tees and game jerseys |
| July | 80°F | 64°F | 0.1 | Practice tees and game jerseys |
| August | 82°F | 65°F | 0 | Practice tees and game jerseys |
| September | 81°F | 64°F | 0.2 | Practice tees and game jerseys |
| October | 78°F | 58°F | 0.5 | Practice tees and game jerseys |
| November | 73°F | 50°F | 0.9 | Practice tees and game jerseys |
| December | 67°F | 45°F | 1.6 | Tees plus warmup quarter-zips |
Made in So Cal, shipped to San Diego.
San Diego shares the shop's Southern California region; orders ship from there.
San Diego is about 91 miles from Merch Mob's shop in Montclair, CA, a straight-line distance. From the shop's ZIP code, San Diego is USPS zone 2. San Diego shares the shop's Pacific time zone.
From the production floor
Merch Mob production in Southern California.
Ordering from San Diego
When do teams in San Diego need warmup gear?
Only for cool evenings. San Diego's lowest monthly average high is 67°F, in January, so one warmup layer per player for night games covers it and breathable practice tees carry the season.
More for San Diego
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