San Diego Guide for Digital Nomads

Weather in San Diego by month

The warmest month is September, at about 79°F (26°C) in the afternoon, and the coolest is February, at about 67°F (19°C).

The most rain falls in December.

From NOAA's monthly station summaries for San Diego International Airport, Ca Us (2.9 km away), averaged over 2011 to 2025.

Internet in San Diego

In M-Lab's open speed tests within 25 km of San Diego, half came in above 119 Mbps download and 22 Mbps upload, and the fastest quarter of lines above 338 Mbps.

That's 1,783,706 download tests from September 2025 to September 2026.

The typical figure counts every line, cheap and mobile ones too; a fiber line in a good apartment or coworking space is closer to the fastest quarter.

Test yours when you get there with my internet speed test.

Cost of living in San Diego

One person spends about $4,156 a month in San Diego, with a furnished place to stay:

The rent is the lower quarter of Inside Airbnb's 1,244 studios and one-bedrooms that take stays of a month or more, from its June 2026 listings.

The rest is what a one-person US household spends (the Bureau of Labor Statistics' 2024 survey), at the US's prices for each (the World Bank's 2021 price comparison).

Coworking, insurance and flights come on top.

Here's what a furnished studio or one-bedroom lists for in the neighborhoods with the most month-long stays:

That's each listing's nightly price times 30, before any monthly discount a host gives, so a booked month often comes in lower.

Air quality in San Diego

The air in San Diego carries about 10 µg/m³ of fine particles (PM2.5) over a year, 1.9 times the WHO's guideline of 5 µg/m³.

The cleanest month is March, at about 8 µg/m³, and the haziest is December.

From the 3 government monitors nearest San Diego, all within 14.8 km, through OpenAQ's open air quality data, each month's average since 2023: San Diego - Sherman (AirNow, US Public Domain, 1.8 km); Chula Vista (AirNow, US Public Domain, 13.4 km); San Diego - Kearny V (AirNow, US Public Domain, 14.8 km).

Work and stay in San Diego

Where to work and live with other remote workers, from each finder:

See them all on a map, with hours, photos and directions, in the coworking space finder, free Wi-Fi spots and coliving finder.

Visas, taxes and residency in the US

Before you plan a long stay, check what your passport allows and what staying does to your taxes:

• Can you stay? – see where your passport goes without a visa on the visa-free countries map, and whether the US has a visa for remote workers in the digital nomad visa finder
• Tax – compare the US's income tax with other countries in tax rates by country
• Foreign income – the US taxes its citizens on their income wherever they live; see the rule and its exceptions on the territorial tax map

Each tool reads the official rules, so the answer is for your own passport and income.

Money in San Diego

A card with no foreign fee and an account that holds several currencies make a stay much cheaper:

• Accounts – the best bank accounts for digital nomads, by where you live
• Cards – what a card costs you abroad in the card fees abroad calculator
• Sending money – the cheapest way to move money there in the money transfer comparison

The finders show only accounts and cards you can open from where you live.

Time zone

San Diego runs on Los Angeles time (America/Los_Angeles).

See how many working hours you'd share with your clients or team in the time zone overlap calculator.